N-hexadecanoic Acid Research Articles

Growth performance and enzymatic activities in monosex tilapia (Oreochromis niloticus) supplemented with Najas indica along with the compound identification of the extracts.

Recent research has looked at various macroalgae species as dietary components or feed additives for a variety of fish species due to their nutritional value. The objective of this study was to examine the impact of Najas indica, a macroalgae extract, on the growth performance, proximate composition, and metabolic activities of monosex tilapia (Oreochromis niloticus), while also isolating the compounds present. Three distinct solvents (n-hexane, ethyl acetate, and ethanol) were used to extract bioactive compounds from a coarse powder of macroalgae after drying and grinding, and gas chromatography-mass spectrometry (GC-MS) analysis was used to detect bioactive compounds. The extracts were combined with commercial feed (0.4%) and applied to the treatment with three replications and a control containing 50 fingerlings per tank for 5 weeks. The findings indicated a significant increase in the final weight, weight gain, specific growth rate (SGR), and survival rate among the treated fish, whereas the feed conversion ratio (FCR) was observed to decrease in comparison to the control group. Significantly higher levels of protein and lipids were found in treated fish, whereas moisture and ash levels were significantly lower compared to control fish. In treated fish, the digestive enzyme amylase was significantly higher, but the protease enzyme reduced significantly. The antioxidant enzyme superoxide dismutase activity (SOD) was significantly higher in the treatment group, whereas the catalase (CAT) enzyme did not differ significantly. A total of 47 bioactive compounds were identified in N. indica, among which the prominent compounds included n-hexadecanoic acid, neophytadiene, phytyl palmitate, d-mannitol, and heptanoic acid. The results obtained from this study indicate that the utilization of N. indica macroalgae extract has the potential to serve as an additional dietary component, therefore, enhancing the growth performance and metabolic functions of fish.

PHYTOCHEMICAL CONTENTS, GC-MS PROFILE AND ALPHA-AMYLASE INHIBITORY POTENTIAL OF Rauwolfia vomitoria n-HEXANE ROOT EXTRACT

Rauwolfia vomitoria is a tropical medicinal plant that has been used traditionally in the management of several diseases. In this study, the phytocontents and the preliminary alpha-amylase inhibitory activity of the n-hexane extracts of R. vomitoria was investigated. The dried plant material, R. vomitoria root was extracted by macerating in n-hexane for 72 h. The phytochemical screening and quantity of the alkaloids, flavonoid, and saponins in the extract and plant materials was determined using standard methods. The Preliminary alpha amylase inhibitory activity of the extract was carried out using starch iodide reagent assay. The phytochemical contents of the root extract were determined out using Gas Chromatography and Mass spectrophotometry (GC-MS). The extraction of R. vomitoria yielded 2.30% n-Hexane extract. The phytochemical screening of the extract shows the presence of alkaloid, flavonoid, saponins, reducing sugar, de-oxy sugars and steroids while quantitative phytochemical analysis showed the root contain alkaloids: 11.2±0.06, flavonoids: 16.6 ±0.12 and saponins: 14.8 ±0.18. The extract gave a positive alpha-amylase inhibitory activity. The GC-MS indicated the presence of twelve compounds, which are basically long chain fatty acids and esters and the most abundant compound is n-Hexadecanoic acid. Most of the compounds detected have antioxidant, anti-inflammatory, antidiabetic and enzyme inhibitory activities which may explain the various traditional uses of this plant and the observed alpha-amylase inhibitory activity

Investigate the efficacy of compounds found in the crude extract of the fungus Aspergillus niger on seeds germination of zucchini

For a long time, fungi have been considered the richest source of bioactive metabolites with numerous applications. Hence, this study was performed to identify various bioactive compounds contained in the ethyl acetate extract of the fungus Aspergillus niger that isolates from infected garlic by using Gas Chromatography-Mass Spectrometry and their effect on seed germination of Zucchini. The current results showed a variety of bioactive compounds such as n-hexadecanoic acid, Hexadecanoic acid, Methyl stearate, Benzoic acid, Hexamethyl-1,3,5-trithiane, and cis-aconitic anhydride with an area percentage of 15.37, 13.93, 6.87, 5.67, 4.75 and 3.59% respectively. The results were performed using the fungus extract that protected the zucchini seed from pathogenic fungi (Botrytis cinerea, Fusarium oxysporum, and Rhizoctonia solani) when soaking for less than 72 h and promoted increased seed germination by high percentage ratio of seeding (66.67%, 80.00%, and 80.00%) respectively, radical length (66.67, 80.00 and 7.67), plumule length (4.67, 7.67 and 6.00) and Number of secondary roots (7.00,8.00 and 7.00) respectively compared with control treatment.

Comparative Study of the Chemical Characterisation of Bioactive Compounds in Different Fractions of Ethanol Extract of Amaranthus Spinosus Leaves

In the evolution of pharmaceutical research, and to discover novel drugs, as well as therapeutic agents the exploration of plant-derived secondary metabolites offers a promising avenue. The current investigation has identified several phytochemicals in the various fractions of the sample being studied. Comparative study on the fractions showed certain phytocompounds were soluble in the solvents of fractionation. Compounds such as n-Hexadecenoic acid, Phthalic anhydride, Dodecanoic acid had affinity for both solvents, however, in varying concentrations as they were more abundant in the n-Hexane fraction. The result of the GCMS showed the presence of 12 compounds in the n-Hexane fraction, with the most abundant being cis-Vaccenic acid (40.39 %), n-Hexadecanoic acid (13.21 %), 9,12-Octadecadienoic acid (Z, Z)- (11.52 %), Octadecanoic acid (10.33 %), and Linoelaidic acid (9.84 %), which are reported to exhibit various biological activities. The FTIR analysis of this fraction further revealed functional groups such as Alcohol, Carboxylic acid, Alkene, Alkane, Aldehyde, Carbon dioxide, Nitrile, Allene, conjugated alkene, phenol, and Alkyl & Aryl Halides. GC-MS result of chloroform fraction further revealed the presence of 13 phytochemical compounds, of which the abundant phytochemical compounds are Linoelaidic acid (32.99 %), Z,Z-10,12-Hexadecadien-1-ol acetate (17.12 %), Nonanoic acid (14.81 %), and Cyclohexene, 4-pentyl-1-(4-propylcyclohexyl)- (12.08 %), while the FT-IR result showed the presence of sixteen (16) peaks, with functional groups such as Alcohols, phenols, thiol, thiocyanate, and δ-lactone. This study therefore infers that the pharmacological potential of the plant may be linked to the presence of the bioactive compounds in it as revealed by this study, however, recommended further study to identify the pharmacological activity of the other compounds with unknown activities, explore more pharmacological activities of the known compounds to solidify the claims on them further, and further carry out toxicity studies on the compounds to ascertain their safety.

Phytochemical Profiling and Nutraceutical Benefits of Methanol Leaf Extracts from Datura alba ness

Introduction: Species of the Datura plant have demonstrated significant pharmacological benefits in combating various diseases over the past decade. However, little information is available on Datura alba ness (DAN), and no studies have yet reported its proximate composition or characterized its phytochemical components. This study aims to investigate the nutritional, phytochemical and bioactive properties of Datura alba ness. Materials and Methods: Fresh leaves of Datura alba ness were collected from Abua Odua local government area of Rivers State, Nigeria and properly identified and authenticated. The fresh leaves were subjected to proximate analysis using standard protocols while the dried leaves were extracted using methanol by the method of cold maceration to obtain methanolic extract of Datura alba ness (MEDAN). The MEDAN was further subjected to phytochemical screening to obtain the various phytochemicals and Gas chromatography and mass spectrometry (GC-MS) analysis for detailed identification and characterization of the various bioactive compounds. Results: Proximate analysis of fresh leaves of DAN showed the presence of moisture (60.4%), crude protein (21.9%), carbohydrate (7.6%), crude fibre (4.77%), ash (4.17%) and fat (1.19%) while the phytochemical screening revealed the presence of flavonoids (49.14%), alkaloids (19.16%), tannins 1(12.19%), saponins (11.72%), phenols (5.33%), cardiac glycosides (1.91%), oxalates (0.43%) and phytates (0.43%). Also, the GC-MS analysis of MEDAN identified twenty-nine (29) active compounds with four (4) observed as the most abundant (with area concentration >10%). They include Bis (2-ethylhexyl) phthalate (15.97%), 13-hexyloxacyclotridec-10-en-2-one (14.26%), n-hexadecanoic acid (12.87%) and Gamma.-Sitosterol (10.77). Conclusion: The identification of various nutrients, compounds, and bioactive substances through proximate, phytochemical, and GC-MS analysis of fresh leaves and methanol extract of Datura alba ness highlights its potential as a supplement and therapeutic agent. These findings suggest that Datura alba ness contains numerous bioactive compounds that may offer effective treatments for conditions related to oxidative stress, nervous system disorders, tissue damage, inflammation, and bacterial infections.

Morphophysiological adaptations and fragrance profile analysis of two relocated orchid species

This study investigates the morpho-physiological adaptations and fragrance profiles of 2 relocated orchid species, Cattleya aclandiae x Brassavola Little star (V1) and Dendrobium var. Meesangnil (V2), following their translocation from Nagercoil to Coimbatore, India. The research aims to elucidate the mechanisms underlying successful acclimatization of these fragrant orchids to a new environment, with implications for horticulture, conservation and therapeutic applications. Comprehensive analyses were conducted on vegetative growth parameters, flowering characteristics, physiological responses and volatile organic compound (VOC) profiles. Morphological assessments revealed distinct adaptive strategies between the 2 species, with Dendrobium exhibiting superior vertical growth (39.13 cm) and leaf production (9 leaves/plant), while Cattleya developed larger leaves (30.483 cm length, 7.178 cm breadth) and longer internodes (5.061 cm). Flowering characteristics also differed significantly, with Cattleya demonstrating earlier spike emergence and floret opening. Physiological analyses using a CI-340 Handheld Photosynthesis System showed higher photosynthetic rates, transpiration rates and stomatal conductance in Dendrobium, suggesting a more resource-acquisitive strategy. Gas chromatography-mass spectrometry (GC-MS) analysis identified unique VOC profiles for each species, with 30 compounds detected in both varieties, including notable compounds such as n-Hexadecanoic acid, Octadecanoic acid and beta-Sitosterol. The study also explored potential applications in therapeutic horticulture, highlighting the diverse sensory and educational value of these orchid species. This comprehensive analysis of morphological, physiological and biochemical adaptations provides valuable insights into orchid acclimation processes and their potential for conservation and horticultural applications, contributing to our understanding of plant adaptability in the face of environmental changes and offering a foundation for future studies on orchid biology, ecology and therapeutic uses.

Metabolite profile and pharmacological relevance of Solanum violaceum Ortega leaf and fruit extracts

Solanum violaceum Ortega is a perennial tropical shrub traditionally used as conventional medicine for the treatment of various ailments. The present study aims to validate the use of S. violaceum Ortega leaf (SVLE) and fruit extracts (SVFE) in traditional medicine through untargeted metabolomics and assessment of its biological and phytochemical properties. GC-MS-based untargeted metabolomics identified derivatives of 59 and 50 metabolites in SVLE and SVFE, respectively. The study authenticated the presence of several bioactive compounds including Diosgenin, n-Hexadecanoic acid and Stigmasterol in SVLE and Ricinoleic acid, 9,12-Octadecadienoic acid and Oleic acid in SVFE, thus corroborating the use of the plant in traditional medicine as an anti-inflammatory and antioxidant agent. Both SVFE and SVLE demonstrated potent antioxidant, protease and anticoagulant properties with partial inhibitory effects on the physiological function of Factor Xa. This study provides insight into the phytochemical and pharmacological properties of S. violaceum and its potential ethnomedicinal relevance.

DFT, experimental and optimization studies on the corrosion inhibition of aluminium in H2SO4 with danacid as inhibitor

The inhibitive action of expired danacid toward the dissolution of aluminium in 1 M H2SO4 was examined in this study via gravimetric, electrochemical, and theoretical method via density functional theory (DFT) in addition to studying the surface morphology and functional groups with scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR). Optimization of inhibition parameters was performed with response surface methodology (RSM). FTIR result indicates the presence of heteroatoms in the inhibitor while further study by gas chromatography mass spectrometry (GC-MS) revealed the presence of octadecane, carbonic acid, eicosyl vinyl ester, dotriacontane, 1-chloro- Hexadecane, 1-chloro-octadecane, 1-fluoro-Tetradecane, n-hexadecanoic acid, pentafluoropropionic acid, tetradecyl ester, linoelaidic acid, among others. The inhibition efficiency of expired danacid increased with increase in danacid's concentration and reduced with rise in temperature. Potentiodynamic polarization (PDP) result portrayed the expired danacid as a mixed-type inhibitor (M-TI) with the highest inhibition efficiency (IE) of 94.06 % while RSM optimization gave an IE of 94.24 %. DFT analysis revealed further parameters that support the inhibitory action of danacid. Adsorption studies showed that Langmuir isotherm gave the best fit to the experimental data. Artificial neural network (ANN) modeling further improved on the RSM predicted results. The experimental, electrochemical and optimization results show consistency with each other.

Synergistic action of bacteriophage and metabolites of Pseudomonas fluorescens JB3B and Streptomyces thermocarboxydus 18PM against Enterotoxigenic Escherichia coli and Bacillus cereus and their biofilm

BackgroundFoodborne disease and food spoilage are the prime public health issue and food security round the globe. Significant disease outbreaks mostly linked to the existence of pathogenic bacteria that extremely challenging due to the persistence of biofilm-forming. Proteins and bacterial metabolites have been shown to have good antibacterial activity and effectively removal bacterial biofilm. Recently, bacteriophage and their encoded lytic proteins such as lysin have attracted attention as potential alternative agent to control undesirable pathogens in human body infection, increasing food safety as advance preservations and medical treatment such as phage therapy. For these reasons, the efficacy of bacteriophage and their potential in combination with bacterial metabolites from Phyllosphere and Actinomycetes bacteria (Pseudomonas fluorescens JB3B and Streptomyces thermocarboxydus 18PM crude extracts) was the aim of this present study.ResultsIn this study, bacteriophage BC-VP (1.28 ± 0.29 × 1011 PFU/ml) and ETEC-phage-TG (8.9 ± 2.19 × 108 PFU/ml) isolated from artificial lake water from previous study showed potential activity to control Bacillus cereus (BC) and Enterotoxigenic Escherichia coli (ETEC) population. The combination of BC-VP with metabolite (P. fluorescens JB3B and S. thermocarboxydus 18PM) which were known from previous study had antibiofilm activities were able to inhibit (86.1%; 83.3%) and destruct (41%; 45.5%) biofilm formation of B. cereus respectively. Likewise, the synergy of bacteriophage ETEC-phage-TG with the same crude extract also showed promising activity against biofilm of ETEC with percentage of inhibition (81.9%; 76.4%) and percentage of destruction (54.1%; 44.4%). Application in various food, combination of BC-VP and bacterial metabolite extract (P. fluorescens JB3B; S. thermocarboxydus 18PM) were able to reduce Bacillus cereus population in mashed potato (99.6%; 99.4%) at cold temperature (4 °C) and (68.9%; 56.6%) at room temperature (28 °C), boiled pasta (99.5%; 99.4%) and (84.7%; 75.7%), also soymilk (96.9%; 96.7%) and (42.4%; 39.4%) respectively. Likewise, combination of ETEC-phage-TG and bacterial metabolite (P. fluorescens JB3B; S. thermocarboxydus 18PM) potentially reduced ETEC population after two different temperatures (4 °C and 28 °C) incubation in bean sprouts (TFTC; TFTC) and (47.5%; 49.1%), chicken meat (TFTC; TFTC) and (58.1%; 54%), also minced beef (99.5%; 99.4%) and (41.1%; 28%). GC-MS determination performed, oxalic acid, phenol, phenylethyl alcohol, N-hexadecanoic acid, and pyrolol[1,2-a]pyrazine-1,4-dione, hexadro-3-92-methylpropyl was the most active compound in P. fluorescens JB3B. 2,4-Di-tert-butylphenol, phenyl acetic acid, N-Hexadecanoic acid, pyrolol[1,2-a]pyrazine-1,4-dione, hexadro-3-92-methylpropyl, and Bis(2-ethylhexyl) phthalate was most active compound in the S. thermocarboxydus 18PM isolates.ConclusionsThe combination of isolated bacteriophages and bacterial metabolite showed promising results to be used as biocontrol candidate to overcome biofilm formed by foodborne and food spoilage bacteria using their ability to produce antibiofilm compounds and lytic activity. In addition, this combination also potentially reduces the use or replace the drawbacks of common application such as antibiotic treatment.

GC-MS SCRUTINY OF PHYTOCONSTITUENTS, IN VITRO EVALUATION OF ANTIHYPERGLYCEMIC, ANTIADIPOGENIC ACTIVITIES, AND CYTOTOXIC EFFECT USING 3T3 L1 ADIPOCYTE CELL LINE AND MOLECULAR DOCKING STUDIES OF PREMNA CORYMBOSA

Objective: The present study was intended to list out the phytochemical multiples and to investigate the antihyperglycemic effect of Premna corymbosa using in vitro assays and in silico molecular docking methods. Methods: The phytochemical multiples of methanol proportion of P. corymbosa leaves were appraised by Gas Chromatography-Mass Spectrometry (GC-MS) scrutiny to illustrate the attendance of phytochemical composites. Moreover, the in vitro antihyperglycemic, antiadipogenic activities, and cytotoxic effects of the extract were elucidated using a 3T3 L1 adipocyte cell line. Mode of action of phytochemical composites in methanol leaf extract of P. corymbosa was probed by Western blotting with IRS1, IRS2, mTOR, and glucose transporter type 4 (GLUT 4) receptors. At present, to probe the consequence of the aboriginal drugs, it is necessary to perform in silico docking on the diabetic receptor which could be useful for the progress of enhanced formulation for the psychoanalysis of diabetes. Results: The GC-MS scrutiny depicted the being there of thirty-five phytochemical multipart. Amid the thirty-five multipart’s recognized, focal composites were Phytol, acetate (RT-16.78), n-Hexadecanoic acid (RT-18.16), Phytol (RT-19.51), 9,12,15-octadecatrienoic acid (Z,Z,Z) (RT-19.85), octadecanoic acid (RT-20.04), and Bis (2-ethylhexyl) phthalate (RT-23.09). The results of the glucose conception assay, adipocyte differentiation assay, and MTT assay showed potent in vitro antihyperglycemic activity with methanol leaf extract of P. corymbosa in 3T3l1Cell line. The results attained from western blotting revealed good antihyperglycemic activity of P. corymbosa. The in silico molecular docking results illustrated that the selected herbal lead compound is an effective target against the receptors. The compound showed favorable interactions with the amino acid residues thereby substantiating their proven efficacy as an antihyperglycemic compound. Conclusion: The outcome of the current study substantiates the antihyperglycemic prospective of the methanol leaf extract of P. corymbosa on the hyperglycemic causal agents and its activity against diabetes by a molecular approach.

Examination of Biological Activity of Passiflora edulis (Çarkıfelek) Extract via Phytochemical Analysis

In recent years, the use of medicinal plants as sources of drugs or herbal extracts has been of great importance. Passiflora edulis is nowadays widely studied for its antimicrobial, anticancer, and antioxidant potential. Therefore, this study aimed to determine the phytochemical structure of ethanol extract of P. edulis leaves and to investigate its biological properties such as antimicrobial and anticancer activities. The ethanol extract of P. edulis leaves was obtained and analyzed by GC-MS. The antimicrobial activity of P. edulis leaf extract was determined by MIC test. XTT method was used to determine the antiproliferative activity. In the phytochemical analysis of P. edulis extract, dodecanoic acid, tetradecanoic acid, and n-hexadecanoic acid were found the most. The antimicrobial effect of P. edulis leaf extract was found against pathogenic microorganisms. In addition, P. edulis leaf extract was found to have high anticancer activity against OvCar and MCF-7 cell lines, while it had the highest effect on the PC-3 cell line. It is thought that the effectiveness of this antiproliferative and antimicrobial activity is related to the secondary metabolites determined by GC-MS analysis

Analysis of Nutritional Profiles, Mineral Content, and Contaminants in Palm Oil from Yenagoa Metropolis, Nigeria: Assessing Quality and Safety Standards

Aim: This study aims to evaluate the nutritional profiles, chemical compositions, and potential contamination of palm oil samples from different locations in Yenagoa Metropolis, Nigeria, to assess their quality and safety. Study Design: An analytical investigation was conducted, using proximate analysis, mineral content determination, and Gas Chromatography-Mass Spectrometry (GC-MS) to characterize the palm oil samples' composition and contamination levels. Place and Duration of Study: The research was carried out in Yenagoa Metropolis, Nigeria, from January to October 2023. Methods: Palm oil samples were collected from three distinct locations within Yenagoa Metropolis. Proximate analysis quantified moisture, ash, protein, fat, and carbohydrate contents. Mineral content was assessed for potassium, iron, magnesium, and phosphorus. GC-MS was employed to identify and quantify bioactive compounds and potential contaminants in the samples. Results: Moisture content ranged from 0.00% in sample C to 3.00% in sample A. Ash content was highest in samples B and C, at 20.06%, while sample C had the highest fat content at 47.0%. Potassium (10.9%) and phosphorus (0.53%) were also highest in sample C. GC-MS analysis revealed key bioactive compounds, such as n-hexadecanoic acid and squalene, but also detected harmful contaminants especially in samples A and B. Presence of Isobutylene glycol and various oxiranes can cause skin, eye, and respiratory irritation, with prolonged exposure leading to severe health issues. Benzene, toluene, Trimethylamine compound with Borane, Pentane 3-ethyl-2-methyl and Heptane 2-methyl are associated with respiratory problems, neurological damage, and potential long-term organ effects. Contaminants in the oil samples were attributed to inadequate refining, contaminated raw materials, improper handling, and environmental pollution. This study emphasizes the nutritional value of palm oil while highlighting the need for improved quality control measures to ensure the safety and efficacy of palm oil products.

In vitro anti-inflammatory, anticancer effects and phytochemical characterisation of organic extracts from Aristolochia olivieri Colleg. ex Boiss

Natural extract plays a crucial role in our lives, major compound in the n-hexane (AR-H) and the ethyl acetate (AR-E) Aristolochia olivieri extracts was n-hexadecanoic acid, and of the methanol extract (AR-M) was pentacosane. The AR-M extract had a strong ability to induce mRNA expression of an inflammatory cytokine, IL-6, as an M1-like macrophage subset compared to the negative control (DMSO-treated cells). In contrast, AR-E treatment showed strong anti-inflammatory activity against macrophages. The AR-H extract had a moderate inflammatory effect against macrophages. The IC50 results of the anticancer assays ranged from 58.29 to 451.03 μg/mL for the three extracts. The anticancer action of the AR-E extract against U-87MG cells was higher (58.29 μg/mL) than that of AR-H and AR-M (156.38 and 196.14 μg/mL, respectively). The greater cytotoxicity effect observed with the AR-E extract against U-87MG can be linked to its high content of hexadecanoic acid (32.49%) and linolenic acid (12.90%).

Ethanolic extraction and GC-MS analysis of antioxidant and anticancer bioactive compounds from Mentha arvensis and Aegle marmelos

Bioactive components used to treat human ailments are abundant in medicinal plants. Mentha arvensis and Aegle marmelos have therapeutic properties due to the presence of many phytonutrients. Gas chromatography–mass spectrometry (GC-MS) was used to evaluate the properties of the antioxidant and anticancer bioactive components found in the ethanolic extracts of Mentha arvensis and Aegle marmelos leaves. The major constituents identified in the leaf extracts were octadecanoic acid, heptadecanoic acid, 15-methyl-9,12,15-octadecatrienoic acid, ethyl ester, hexadecanoic acid, neophytadiene, pentadecane, hexadecane, and 1-octadecanol. Some of these components have antibacterial, antioxidant, anticancer, and anti-inflammatory properties. Among the identified compounds, octadecanoic acid and n-hexadecanoic acid are pivotal for their anticancer and antioxidant effects. The GC–MS characterisation indicated the existence of abundant bioactive compounds, confirming their potential therapeutic activities. This study showed that the leaves of Mentha arvensis and Aegle marmelos could be used as novel sources of antioxidants and anticancer medicines.

Characterization of the phytochemical constituents of methanol extract of <i>Spondias mombin</i> stem bark using high performance-liquid chromatography and gas chromatography mass spectroscopy

Spondias mombin is commonly used in traditional medicine to treat various ailments. This study was aimed to analyze the bioactive components of the methanol extract of S. mombin stem by High-performance liquid chromatography (HPLC) and Gas Chromatography-Mass Spectroscopy (GC-MS). Quantitative analysis of the extract showed that it had appreciable quantities of flavonoids, phenols, tannins, and proanthocyanidins. The HPLC fingerprints of the extract also revealed the presence of flavonoids, tannins, saponins, alkaloids, other phenols, and steroids. The most prevalent flavonoids were the flavones, and the alkaloids present in high concentrations were ribalinidine and linamarin. Some other phenolics, such as resveratrol, ellagic acid, chlorogenic and pyrogallic, were in high concentration. The GC-MS data detected bioactive compounds; notably among them were 9,12 -octadecadienoic acid (linoleic acid), n-hexadecanoic acid, and 9-oxo nonanoic acid. This study has established the presence of bioactive chemicals in the methanol extract of S. mombin stem bark, and these phytochemicals could be responsible for the plant’s medicinal properties.

Discovering the anti-diabetic potential of pomegranate peel metabolites by examining molecular interplay with the thioredoxin-interacting protein.

Medicinal plants like Punica granatum (pomegranate) have traditional uses against diabetes, inflammation and other diseases. The study was initiated to get an insight into the interaction tendency of P. granatum derived compounds with diabetes associated human thioredoxin-interacting protein (TXNIP). High glucose in diabetes induces production of TXNIP resulting in β-cells apoptosis. Its inhibition might reduce the diabetes incidence. To elucidate the therapeutic potential of P. granatum peel against diabetes through GC-MS based identification of extracted compounds followed by application of computational algorithms. P. granatum peel extracts were screened for antioxidant, anti-inflammatory, anti-diabetic, antimicrobial and wound healing properties. Phytochemical and GC-MS based analysis were performed to identify the bioactive compounds. Molecular docking analysis was performed by Auto Dock Vina to predict the binding tendency of P. granatum derived compounds with TXNIP. The peel exhibited antioxidant, anti-inflammatory and anti-diabetic activities, which were attributed to phytochemicals like phenols, tannins and steroids. GC-MS analysis identified 3,5-octadien-2-one, 1H-pyrrole -2,5-dione, Beta-D-lyxofuranoside, 5-O-(beta-D-lyxofuranosyl)-decyl, diethyl phthalate, 9-octadecenoic acid (Z)-, methyl ester, hexadecanoic acid, methyl ester, n-hexadecanoic acid, tetradecane, 2,6,10-trimethyl, bis (2-ethylhexyl) phthalate, decane, 3,8-dimethyl, 9-octadecenoic acid (Z)-, methyl ester and bis (2-ethylhexyl) phthalate in P. granatum peel extracts. Docking analysis revealed high binding affinities of bis (2-ethylhexyl) phthalate and 9-octadecenoic acid with TXNIP i.e., -4.5 and -5.0 kcal/mol, respectively, reflecting these compounds as potent antidiabetic agents. This study validates the traditional uses of P. granatum peel and demonstrates how computational approaches can uncover pharmacologically active phytochemicals. The results suggest P. granatum peel is a promising source of novel therapeutics against diabetes, inflammation, and oxidation. Further studies on the optimization of identified ligands are warranted.

Antibacterial, antifungal, and phytochemical properties of Salsola kali ethanolic extract.

The research into the use of plants as plentiful reservoirs of bioactive chemicals shows significant potential for agricultural uses. This study focused on analyzing the chemical composition and potency of an ethanolic extract obtained from the aerial parts (leaves and stems) of Salsola kali against potato pathogenic fungal and bacterial pathogens. The isolated fungal isolates were unequivocally identified as Fusarium oxysporum and Rhizoctonia solani based on morphological characteristics and internal transcribed spacer genetic sequencing data. The antifungal activity of the extract revealed good inhibition efficacy against R. solani (60.4%) and weak activity against F. oxysporum (11.1%) at a concentration of 5,000 µg/mL. The S. kali extract exhibited strong antibacterial activity, as evidenced by the significant inhibition zone diameter (mm) observed in all three strains of bacteria that were tested: Pectobacterium carotovorum (13.33), Pectobacterium atrosepticum (9.00), and Ralstonia solanacearum (9.33), at a concentration of 10,000 µg/mL. High-performance liquid chromatography analysis revealed the presence of several polyphenolic compounds (μg/g), with gallic acid (2942.8), caffeic acid (2110.2), cinnamic acid (1943.1), and chlorogenic acid (858.4) being the predominant ones. Quercetin and hesperetin were the predominant flavonoid components, with concentrations of 1110.3 and 1059.3 μg/g, respectively. Gas chromatography-mass spectrometry analysis revealed the presence of many bioactive compounds, such as saturated and unsaturated fatty acids, diterpenes, and phytosterols. The most abundant compound detected was n-hexadecanoic acid, which accounted for 28.1%. The results emphasize the potential of S. kali extract as a valuable source of bioactive substances that possess good antifungal and antibacterial effects, which highlights its potential for many agricultural uses.

Comprehensive analysis of metabolites in Pleurolobus gangeticus using the two-dimensional gas-chromatography and time-of-flight mass spectrometry

Pleurolobus gangeticus, also known as ‘Salparni’, is a valuable herb with significant medicinal properties. Previous studies on the plant have only used conventional GC-MS to analyse its metabolites. In this study, we utilised two-dimensional gas chromatography and time-of-flight mass spectrometry to precisely characterise the shoot and root volatiles of Pleurolobus gangeticus. The ethyl acetate extract of both tissues revealed 50 prominent volatile phytoconstituents in each, accounting for 99.9% and 100.1% of the total volatiles, respectively. The most abundant chemicals found in the root were alcohols (19%) and fatty acids (17%), while the shoot primarily contained organic compounds (24%) and esters (20%). The major phytoconstituents in the root were hexadecanoic acid, 2-hydroxy-1ethyl ester (16.1%), octadecanoic acid, and 2,3-dihydroxypropyl ester (10.5%). Conversely, the shoot was dominated by n-hexadecanoic acid (9.1%), linoleic acid (7.4%), and neophytadiene (5.6%). These findings highlight the potential of Pleurolobus gangeticus for further research and development in medicinal applications.

Mechanism of Jizhi syrup’s prevention and treatment of acute bronchitis based on LPS-iNOS inflammatory mediators’ signalling

Ethnopharmacological relevanceJizhi syrup (JZTJ) is composed of eight medicinal herbs, including Houttuynia cordata, Fagopyrum dibotrys, Ilex chinensis, Ephedra sinica, Aster tataricus, Peucedanum praeruptorum, Citrus aurantium and Glycyrrhiza uralensis. It is mainly used for coughing caused by exogenous wind heat. Symptoms include fever, aversion to cold, chest and diaphragm tightness, cough and sore throat; and acute bronchitis and acute exacerbation of chronic bronchitis with the above symptoms. PurposeThis study aimed to preliminary analyse the chemical components in the liposoluble part of JZTJ, evaluate the anti-inflammatory effect of JZTJ by using six animal and cell models and predict the target and mechanism of acute bronchitis prevention and treatment with JZTJ. MethodsThe chemical components in the liposoluble fraction of JZTJ (extracted by cyclohexane) were quantitatively analysed using gas chromatography-mass spectrometry (GC-MS). Classic non-specific inflammation models and acute bronchitis models were established to systematically evaluate the anti-inflammatory effect of JZTJ. The anti-inflammatory intensity and characteristics of three doses of JZTJ were comprehensively compared on the basis of principal component analysis method at the cellular and overall animal levels. By using lipopolysaccharides (LPSs) as modelling factors, a RAW264.7 macrophage inflammatory response model and a rat acute bronchitis model were created to study the effect of JZTJ on the in-vitro and - vivo LPS-iNOS-inflammatory mediators’ inflammatory signalling pathway to reveal the mechanism of acute bronchitis prevention and treatment by JZTJ at the levels of genes, proteins, and inflammatory mediators. ResultsSeventeen alkane and ester compounds were preliminarily qualitatively identified from the lipid soluble fraction of JZTJ: dibutyl phthalate, tetradecane, ridecane, n-hexadecanoic acid, pentadecane, n-decanoic acid, 2,6,10,14,18,22-tetracosahexaene, 2,6,10,15,19,23-hexamethyl-(all-E)-; phenol, 2,2ʹ-methylenebis[6-(1,1-dimethylethyl)-4-methyl-; hexadecane. JZTJ has a significant inhibitory effect on acute non-specific inflammation, specifically inhibiting ‘xylene-induced ear swelling in mice’, ‘acetic acid-induced increased permeability of abdominal capillaries in mice’ and ‘egg white-induced foot swelling in rats’. The above effects are most evident in high doses, followed by medium doses, whereas low doses have poorer or no effects. JZTJ can prevent and treat acute bronchitis induced by LPS in mice and rats, significantly improve the pathological changes in patchy interstitial and alveolar bleeding with excessive neutrophil infiltration and inhibit the release of inflammatory mediators by LPS-induced RAW264.7 macrophages. Its mechanism of action may be by downregulating the phosphorylation level of p-ERK1/2 protein, thereby inhibiting inducible nitric oxide synthase (iNOS) mRNA, tumour necrosis factor (TNF)-α mRNA and IL-1β. The expression levels of genes, such as mRNA and IL-6 mRNA, thereby reducing iNOS, TNF-α and IL-1β. The expression of proteins in the cytoplasm of lung and bronchial tissue cells reduced the release of downstream inflammatory mediators NO and IL-6. ConclusionPreliminary analysis of the chemical components in the lipid soluble fraction of JZTJ can lay the foundation for subsequent research on its effective components. Evaluating the anti-inflammatory effect of JZTJ is helpful for further research on its mechanism of action. The anti-inflammatory effects are exerted by regulating the inflammatory signalling pathway of LPS-iNOS inflammatory mediators, providing a scientific basis for their clinical application.

Antimicrobial activities and metabolites profiling of Heliotropium bacciferum Forssk. methanolic extract

In the present study, Heliotropium bacciferum Forssk. methanolic extract was tested for its antibacterial activities against Pectobacterium carotovorum, P. atrosepticum, Ralstonia solanacearum, and Streptomyces scabiei bacterial strains. The plant extract was also tested for its antifungal properties against strains of Fusarium oxysporum, Botrytis cinerea, and Rhizoctonia solani. The potent antibacterial activities were recorded against R. solanacearum after treatment with the extract at a concentration of 1000 µg/mL with an inhibition zone of 9.67 ±0.57 mm. The methanolic extract also showed promising antifungal effects against B. cinerea and F. oxysporum, with fungal growth inhibition percentages of 86.22 ±0.33% and 82.00 ±0.55%, respectively, which were higher than the standard antifungal drug. The plant extract’s HPLC analysis identified 12 phenolic compounds and 6 flavonoid compounds, with HPLC peaks matching the used standards. Gallic acid, chlorogenic acid, coffeic acid, ellagic acid, coumaric acid, syringic acid, methyl gallate, ferulic acid, vanillin, pyrocatechol, and cinnamic acid were the phenolic compounds that were identified. The flavonoid compounds found in the extracts were daidzein, naringenin, quercetin, kaempferol, hesperetin, apigenin, and rutin, arranged from high to low abundance. Furthermore, according to the GC-MS analysis, the most abundant compounds detected in the plant extract were n-hexadecanoic acid, 9,12-octadecadienoic acid (z,z), á-sitosterol, betulin, phorbol, cis-13-octadecenoic acid, and octadecanoic acid. These compounds in HPLC and GC-MS analyses were proven to have antibacterial as well as antifungal properties. Based on the obtained antimicrobial results, H. bacciferum methanolic extracts could be recommended as a promising antibacterial and antifungal agent, as well as a safe alternative to many antimicrobial pesticides for the environment and human health.