Form Of Extract Research Articles

Identification of macroalgae from the West Coast of Sulawesi and potential utilization as ruminant feed sources

The use of macroalgae as a ruminant feed is being widely developed due to its rich nutritional content and the presence of anti-methanogenic substances that may be able to reduce the formation of methane gas in ruminants. Macroalgae are cultivated and not cultivated; the species are diverse and grow in groups throughout Indonesian waters. This study aims to identify macro algae morphology that is easily found in the waters of the West Coast of Sulawesi and its potential use as a source of ruminant feed. Macro alga samples of cultivated and non-cultivated algae were collected from farmers and fishermen from the West Coast of Sulawesi, then continued with morphological identification. Several related articles and previous research obtained data regarding nutritional content using proximate analysis (protein, lipid and ash) and its potential use as a feed source. Research shows several macroalgae species that are easily found in the waters of the west coast of Sulawesi, namely macroalgae cultivated Gracilaria sp, Eucheuma denticulatum, Eucheuma cottonii, and Caulerpa sp. In contrast, the non-cultivated ones are Sargassum sp, Padina australis, Halymenia sp, Halimynea sp, and Caulerpa sp. Of the eight species, It is nutrient-rich and may be utilized as a source of feed for ruminants in the form of pure or extracts, but the proportion of macroalgae in the diet must be taken into account.

Etnofarmakološka upotreba kantariona (Hypericum perforatum) na Rujan planini (Jugoistočna Srbija)

St. John’s wort (Hypericum perforatum) has been traditionally used for centuries to treat various ailments. On Rujan Mountain, this plant was used in ethnomedicine (197 reports), ethnoveterinary (54 reports) and for other purposes (1 report). Out of the total of 130 respondents, 101 knew the use of St. John’s wort (78 Serbian, and 23 Albanian respondents). Respondents of Serbian nationality participated in greater numbers and gave more statements about the use of St. John’s wort. In ethnomedicine, St. John’s wort flowers were most often used (61.4%). The preparation of oil extract (58.9%) was the most used form. The external application was the most frequently used (62.4%). The treatment of skin burns was usually use (34%). In ethnoveterinary, the only application of St. John’s wort, according to the reports, was the use of oil extract form, prepared with the flowers for the external treatment of skin wounds in cows and goats. For other purposes, the respondents collected St. John’s wort in the field and sold it to buyers. New applications that have not been mentioned in previous research are the use of St. John’s wort for the treatment of colds, skin ulcers and in the prevention of health.

Sonchus asper (L.) Hill extracts: phytochemical characterization and exploitation of its biological activities by loading into nanoformulation.

The current investigation presents a two-fold approach to rediscovering the potential of Sonchus asper as a wild edible plant, both in its raw extract form and as a nanoformulated product. Furthermore, the study aimed to promote the valorization of traditional dishes and contribute to biodiversity conservation and sustainable use of S. asper, thus enhancing economic profits. Liquid chromatography-mass spectrometry analyses were conducted to characterize the metabolite profile of the raw and cooked leaf extracts, and the extract from discarded leaves. The antioxidant activity, the hypoglycaemic effect and the incorporation into liposomes were evaluated. 38 compounds and 6 essential amino acids were identified. The incorporation into liposomes maximized the health-promoting properties for potential pharmaceutical or food applications. The commercialization of S. asper could: (i) contribute to improving the well-being of rural and urban communities, being S. asper a wild edible plant available at low cost, environmentally friendly, resilient, and adaptable; (ii) generate landowner economic returns.

Antibacterial and antioxidant activity of endophytic fungi extracts isolated from the petiole of sungkai plant (Peronema canescens)

Abstract. Oktiansyah R, Elfita, Widjajanti H, Salni, Setiawan A. 2023. Antibacterial and antioxidant activity of endophytic fungi extracts isolated from the petiole of sungkai plant (Peronema canescens). Biodiversitas 24: 6516-6526. Indonesia has a diverse number of medicinal plants that are very helpful in preventing infectious diseases. Sungkai (Peronema canescens) is a medicinal plant of the family Verbenaceae that is often used and found in Indonesia. Its leaves possessed antibacterial and antioxidant properties that boost immunity and lessen the signs of infectious disorders. This study explored the types of endophytic fungi found in sungkai petioles and examined their relationship to previously reported sungkai leaf endophytic fungal isolates and spectrum of compounds contained them. Endophytic fungal were isolated from fresh leaf petioles of host plants, and their morphological and molecular characteristics were determined. Endophytic fungal extracts were tested for antibacterial and antioxidant properties. Utilizing the paper disk diffusion technique, the antibacterial characteristics were ascertained, while the DPPH method was used to determine antioxidant activity. Molecular identification was carried out on the fungal isolate with the most potential, and chemical compounds were isolated using column chromatography. The structures of the compounds were determined using spectroscopy, including 1D and 2D NMR. Eight endophytic fungal isolates were obtained from sungkai leaf stalks (RA1-RA8) of various species of the genus Trichoderma. Differences in the diversity of endophytic fungi found in leaf stalks and endophytic fungi from leaves were identified. RA1 showed the strongest antibacterial and antioxidant activity and was molecularly identified as T. harzianum. Spectroscopic analysis showed that the pure compound contained within was 9-hydroxy-7-methylenebenzo[c]oxepin-3(7H)-one (1), which had never previously been found in sungkai plants and endophytic fungi. The antibacterial activity of Compound 1 is in the strong category (MIC = 64 µg/mL) but is not active as an antioxidant. In terms of producing medicinal ingredients from endophytic fungi, T. harzianum in extract form has more potential to be developed.

The Antibacterial Activity of Angelica glauca in form of Silver Nanoparticles

Angelica glauca have been used traditionally as an over the counter herbal preparation, nowadays nanotechnology formulate metal nanoparticles from Angelica glauca in green synthesis method which increase Angelica glauca pharmacology and pharmaceutical application. The aims of present work were to synthesis Angelica glauca silver nanoparticles from its methanolic extract, phytochemicals detection, investigation the morphology and chemical compound characteristic present in Angelica glauca AgNPs by spectroscopic method of FT-IR, and scan electron microscope, and finally in vitro evaluation the antibacterial activity of Angelica glauca in forms of methanolic extract and silver nanoparticles. Extraction by soxhlet was the method used in preparation Angelica glauca methanolic extract, to be use in preparation Angelica glauca silver nanoparticles, 5 phytochemicals were detected, in addition to detection Angelica glauca AgNPs characteristic of active chemical compound and nanoparticles morphology by FT-IR and SEM, in vitro assessment antibacterial activity against Four types of control bacteria. Methanolic extract weight yielded from 250 g of Angelica glauca was 13.3g, in addition to phytochemical detection test was positive for alkaloids, flavonoids, tannins, steroids and coumarins. However, detection of terpenoids, carbohydrate, saponine, quinine, and proteins showed negative result, FT-IR spectroscopy, which showed a sharp band with different wave length, indicating the presence of multi- functional group as aliphatic –CH3, olefinic –C=C-, and carbonyl C=O, particle size detected by SEM )mean ±SD) was 70.9nm±13.60. The antibacterial activity of Angelica glauca AgNPs was higher than methanolic extract. The two formula of Angelica glauca exhibit a varying degree of antibacterial activity, Angelica glauca contain many bioactive phytochemical compounds when reduced to nanoparticles which can be used in curing health related problems and in many pharmaceutical application across the globe.

Assessment of the ameliorative potential of A. cepa and its fractions on doxorubicin-induced cardiotoxicity in Wistar rats

The assessment of the ameliorative potentials of A. cepa and its fractions on doxorubicin-induced cardiotoxicity in Wistar rats was evaluated in this study. 45 Wistar rats of both sexes were randomly divided into 9 groups of 5 animals each; as follows: group I, served as control and received 10 ml/kg body weight of 0.9% saline, group II, 10mg/kg body weight of doxorubicin, group III, 4 mg/kg body weight of vitamin E plus Dox. Group IV, 1000mg/kg body weight of crude extracts of A. cepa plus Dox. Group V, 1000mg/kg body weight of n-hexane fraction of A. cepa plus Dox. Group VI, 1000mg/kg body weight of DCM fraction of A. cepa plus Dox. Group VII, 1000mg/kg body weight of EA fraction of A.cepa plus Dox. Group VIII, 1000mg/kg body weight of methanol fraction of A. cepa plus Dox, and group IX, combinations of 1000mg/kg, 4mg/kg 10mg/kg body weight of crude extract of A. cepa, vitamin E and Dox respectively for 16 days. Groups I and II treatments lasted 14 days, while treatments for groups III-VIII lasted 16 days (making 14 day for respective treatments and addition 2 days for doxorubin administered once 48 hourly) before sacrificing. All substances in this study were administered orally except doxorubicin that was done intravenously. The results showed that doxorubicn administration (group II) significantly (p<0.05) elevated troponin and NO levels; CK and LDH activities, compared to the control group indicating cardiotoxicity. This cardiotoxic effect of doxorubincin was significantly reversed by administration of vitamin E, crude extract, DCM, n-hexane to groups III, IV, V and VI respectively. A significant (p<0.05) reduction of only NO was recorded with EA fraction, compared with group II (dox). Methanol fraction (group VIII) further escalated doxorubicin-induced cardiotoxicity with a significantly (p<0.05) elevated myoglobulin and NO levels and CK activity. But the combined treatment with vitamin E, Crude extract and dox significantly (p<0.05) reduced cardiotoxic markers in this study except myoglobulin where a significant (p<0.05) elevation was recorded. It can be concluded that fresh A. cepa leaves extract possesses cardio-protective properties and may be a suitable cardio-protector against drug-induced cardiotoxicity in crude extract form, fractions of DCM and n-hexane but definitely not with methanol fraction as shown in this study.

Preparation and characterization of chitosan-citric acid edible films loaded with Cornelian cherry pomace extract as active packaging materials

The development of environmentally-friendly, intelligent and active packaging materials is crucial for the protection of food products and the prevention of environmental pollution. This work aimed to study the development of chitosan films containing an extract form Cornelian cherry pomace extract, a by-product of juice production. Citirc acid was utilized as an alternative acidifier and the effect of β-cyclodextrin incorporation on film properties was evaluated. Compared to chitosan-acetic acid films, the films produced in the present study were found to be more elastic, with a lower moisture content and higher water solubility as well as water vapor permeability. Moreover, the obtained results showed that the increase of β-cyclodextrin concentration from 0.45 to 1.85 % w/v improved the mechanical and water vapor barrier properties of the film. Addition of the Cornelian cherry pomace extracts resulted in alteration of the color of the prepared films as well as improvement of the light barrier properties. Also, the presence of the phenolic compounds in the film matrix enhanced the antioxidant activity of the prepared films.

Effect of Brown Seaweed in Powder and Extract Forms on Growth and Yield of Chinese Kale

Brown seaweed is generally found on the beach in Chanthaburi province. Brown seaweed can be used as a bio-stimulant for plant growth enabling the reduction cost of crop production. This experiment aimed to study the effect of seaweed in the forms of powder and extract on the growth and yield of Chinese Kale. Each experiment was conducted in three replicates and designed by CRD with 7 treatments, consisting of control, spraying of seaweed powder at 1%, 2%, and 3%, respectively, and spraying of seaweed extract at 1%, 2%, 3%, respectively. Total amino acid and plant nutrients (N, P, and K) of seaweed powder were analyzed prior to the experiment. Plant growth parameters were recorded at three intervals: 18, 25, and 32 days after transplanting (DAT). Fresh and dry weights of Chinese kale were measured after harvesting at 32 DAT. The results showed that brown seaweed at 2% either in in powder or extract forms can be used as a bio-stimulant for Chinese kale production without any significant difference.

Phytochemical profile and bioactive compounds of beluntas leaves extract (PLUCHEA INDICA L.) and its hydrogel preparations

“Beluntas” (Pluchea indica L.) is a plant that has been used as a traditional medicinal plant for various types of diseases. The most common formulation for Pluchea indica L. utilization is in the form of extract. However, Pluchea indica L. extract cannot be used directly. It is needed to develop in other formulations, such as a hydrogel. This research aimed to determine the phytochemical profile, the content of bioactive compounds, and the preparation of Pluchea indica L. extract incorporated carbopol-HPMC hydrogel. This type of research was a quasi-experimental method. The sample in this study was Pluchea indica L. extract. Qualitative tests were carried out for the determination of the phytochemical profile. At the same time, the content of total phenol, flavonoids, total alkaloids, tannins, and antioxidant activity was analyzed using the Folin-Ciocalteu, AlCl3, Folin-Denis, and DPPH methods by visible spectrophotometry. The results showed that Pluchea indica L. extract had several phytochemical compounds, namely: alkaloids, tannins, flavonoids, and phenols. The highest level of bioactive compounds was found at a parameter of total phenol with a value of 456.431 mg/g. The sample had strong antioxidant activity, expressed with an IC50 value of 0.503 ppm. Preparation of Pluchea indica L. extract incorporated carbopol-HPMC hydrogel produced hydrogel that meets the consistency, color, scent, homogeneity, spreadability, pH, and viscosity requirements.

NMR-based stability evaluation of (E)-1-(3',4'-dimethoxyphenyl)butadiene (DMPBD) from Zingiber cassumunar Roxb. rhizome.

The active compound (E)-1-(3',4'-dimethoxyphenyl)butadiene (DMPBD) isolated from the rhizomes of Zingiber cassumunar Roxb. has potent anti-inflammatory and anticancer activities. Although DMPBD is one of the promising drug candidates for phytomedicine, its limited stability impedes its widespread use. For the development of new drugs, the assessment of their chemical stability is essential, ensuring they maintain their properties within specified limits throughout the period from production until use. In the present study, we aimed to evaluate the stability of DMPBD under various conditions, including different solvents, temperatures, and lighting conditions, to identify the factors affecting stability and optimize the storage and handling conditions. DMPBD samples subjected to the different conditions tested were monitored by quantitative 1H NMR (qHNMR), using an internal standard for the determination of the absolute quantity of DMPBD as a function of time and the changes thereof within 1month. Significant decomposition of DMPBD was observed in chloroform-d1, whereas its content remained constant in methanol-d4. The content of DMPBD was maintained upon storage at temperatures below 4°C, both as methanolic solution and in the crude extract. Exposure to light had a slight negative impact on its contents. Some degradation products could be identified as resulting from O2-induced cleavage of the diene moiety. For pharmacological/therapeutic applications, DMPBD should be stored in the form of the crude extract or as a purified material in methanolic solution. Ideally, the storage temperature should be below 4°C and O2 should be excluded.

PROTEIN-PROTEIN INTERACTION ANALYSIS TO IDENTIFY NUCLEAR FACTOR-ERYTHROID-2 FACTOR 2 (NRF2) INHIBITION BY EXTRACELLULAR ENZYMES FROM WATER KEFIR ORGANISMS

Objective: This research was conducted to screen the anticancer activity of bitter herbs that contains Andrographis paniculata (Brum. f) leaves (AP) and Tinospora crispa L. stems (TC) in form of fresh materials and extracts using a mechanism-based yeast bioassay.
 Methods: Samples tested by mechanism-based yeast bioassay (MBYB) were single extract, mixed extract, and jamu gendong pahitan from a traditional market and made in the laboratory. Fresh sample of jamu gendong pahitan from the market and a single extract (AP and TC) was tested at one dose. While fresh jamu gendong pahitan made in the laboratory and the mixed extract (AP: TC) was tested at three different doses, doses 1 (3:10), dose 2 (1:1), and dose 3 (10:3). The leaves and stems were extracted by 70% ethanol for 3x24 h, each day the solvent was changed then every macerate was evaporated using a rotavapor and water bath. By this MBYB method, noted that the active sample must have an IC12 value of<8000µg/ml, so all the samples or doses were tested using final concentration varying at around 8,000; 4,000; 2,000; 1,000; 500, 250, and 125µg/ml.
 Results: The percentage yield of Andrographis paniculata (Brum. f) leaves was 11.2% and Tinospora crispa L. stems was 19.%. The activity assay for jamu gendong pahitan from the traditional market was inactive as a topoisomerase inhibitor (IC12>8000µg/ml). Samples showed topoisomerase I inhibitor activity were jamu gendong pahitan made in laboratory doses 1 and 2. While samples showed topoisomerase I and II inhibitor activities were jamu gendong pahitan made in laboratory dose 3, single and mixed extracts.
 Conclusion: The fresh material of jamu gendong pahitan (bitter herbs) bought from the market is inactive, while the fresh material of samples of jamu gendong pahitan made in laboratory doses 1 and 2 have topoisomerase I inhibitor activity. Based on the IC12, value, it is known that the sample that gave the best activity was the mixed extract of bitter herbs dose 3 that contain extract of A. paniculata and T. crispa (10:3), with IC12 values in strains 1138, 1140, and 1353 were 926.28±173, 576.75±42, and 865.5±135µg/ml respectively.

PROSPECTS FOR MODIFYING THE STRUCTURE OF CHITIN AND CHITOSAN OF HIGHER FUNGI TO EXPAND THE POTENTIAL OF THEIR APPLIED USE

The review is devoted to summarizing scientific data in the field of the chemical structure and properties of chitin and chitosan obtained from fungal biomass, and to analyzing directions for their modification for use in medicine and the food industry as substances with antibacterial, antiviral, wound-healing and anticoagulant activity. The features of chitin biosynthesis by fungi of the Basidiomycota, Ascomycota, Deuteromycota departments and chitosan biosynthesis by fungi of the Zygomycota department are covered. It has been shown that higher fungi contain chitin in their cell walls in the form of a chitin-glucan complex, while lower fungi (zygomycetes) contain chitin in the form of chitosan-glucan. Effective components of substrates that influence the production of polysaccharides by fungi have been identified - carbohydrates in the form of glucose, sucrose and maltose, organic forms of nitrogen in the form of yeast extract and corn flour, mineral components in the form of dihydrogen phosphate and dipotassium monohydrogen phosphate. Particular attention is paid to methods for isolating chitin and modifying it to chitosan with a detailed description of the physicochemical and biological properties of polymers. The review also presents the main reactions and methods for obtaining carboxymethyl and sulfo derivatives of chitin and chitosan. The biological properties and application of these groups of substances are described. In the carboxymethylation of chitin and chitosan, the choice of appropriate reaction conditions and reagents makes it possible to obtain carboxymethyl chitin, N-, O-, N,O-carboxymethylchitosan, or N,N-dicarboxymethylchitosan. The properties and applications of carboxymethyl derivatives of chitin and chitosan strongly depend on their structure, degree of substitution, and arrangement of amino or hydroxyl groups. The main reagents in the preparation of carboxymethyl derivatives are sodium monochloroacetate, monochloroacetic and glyoxalic acids. Carboxymethyl derivatives of chitin and chitosan are used as drug delivery systems, antimicrobial agents, in tissue engineering, as components of cosmetics and food products. Modification of chitosan with sulfate groups makes it possible to obtain chitosan 2-N-, 6-O-, 2-N-6-O- and 3-O-sulphates. The main sulfonating agents are oleum, pyridine and chlorosulfonic acid. Sulfonic derivatives of chitin and chitosan can be used as a basis for obtaining hemocompatible materials (with antithrombotic and antibacterial activities).

An Overview of Biosynthetic Pathway and Therapeutic Potential of Naringin

Abstract: Naringin is a naturally obtained chemical from plants that is formed as a secondary metabolite in them. It possesses significant properties that are useful to humans. The primary sources of naringin extract include fruits of the citrus family which are Citrus reticulata, Citrus bergamia, Citrus aurantium, and Citrus paradisi. It belongs to a class of alcohols primarily consisting of a fused ring system which is responsible for its different medicinal properties, as a consequence, it is widely used in the nutraceutical market nowadays. Nutraceuticals are a part of food that provides health benefits by giving supplements to the body; their final extract form is white in color having crystalline properties with a melting point of 83oC and solubility of 1 mg/ml at 40oC. The absorption of nutraceuticals occurs inside the stomach as it requires a specific pH range between 3.5-4.2. After absorption, it gets converted into naringenin in the liver via a cascade of reactions like dehydrogenation, acetylation, and hydrolysis. Several enzymes are responsible for its conversion into an active form which includes cytochrome P-450, and chalcone isomerase. Its bioavailability depends on a variety of factors including disease condition, gastric moiety, pH of absorption site, the presence of other drugs, and many more. It gets metabolized in the liver itself and finally excreted in the urine. It can be tolerated by the body at high doses, but other conditions can cause its toxicity inside the human body. Its primary properties include anti-inflammatory actions, anti-aging properties, antibacterial properties, anti-cancer properties, and obesity issues.

Treatment of malignant diseases with phytocannabinoids: promising observations in animal models and patients

Amazingly, almost 50 years after the first demonstration of anticancer effects of cannabinoids in vitro and in vivo, well-designed clinical trials that definitively prove tumour-inhibiting effects in man are still missing. Whereas a large number of preclinical studies exist that describe tumour-inhibiting effects of cannabinoids, alone or in combination, but also in the form of medical cannabis or natural extracts in vitro, the number of in vivo studies is still limited. Even more limited are well-documented experiences in man. Most animal studies and experience with cannabinoids in man concern brain tumours. This review summarises the effects of phytocannabinoids in brain, breast, colorectal, head and neck, haematological, liver, lung, pancreatic, ovarian, prostate, and skin cancers in animal models and, if available, in patients. The large majority of animal studies demonstrate tumour-inhibiting effects of cannabinoids, thus confirming in vitro data. Experiences in cancer patients are almost exclusively limited to individual case reports and case series without a control group. Many questions are currently unanswered such as the role of pure cannabinoids compared to combinations, cannabinoids as the eventual sole cancer therapy, optimal dosages, or duration of treatment. Pure cannabidiol (CBD) seems to be superior to pure delta-9-tetrahydrocannabinol (THC) in experimental settings. The role of medical cannabis or extracts is less clear as they vary in their phytochemical composition. In conclusion, cannabis/cannabinoids may slow the progression of tumours. However, the hope that cannabinoids could eventually cure cancer as often spread in social media, is, at present, wishful thinking. Above all, well-designed clinical trials paired with long-term follow-up of cancer patients are needed.

In Support of human health by Capsicum frutescens, Daucus carota, and Pisum sativum

Natural antioxidants, whether in the form of raw extracts or chemical components, are extremely effective in preventing oxidative stress-related damage. In this study, we have evaluated the total phenolic content (TPC) and total antioxidant activity (TAA) in three different vegetables Capsicum frutescens, Pisum sativum, and Daucus carota based on two different extraction methods, the decoction extraction technique (DEM) and the microwave-assisted method (MAE) in a water solvent. Total phenolic content (TPC) and antioxidant activity (TAA) were analyzed by Folin-Ciocalteu’s and Phosphomolybdate assay, respectively, and expressed as equivalent to catechin. Capsicum frutescence possesses the highest amount of phenolic compounds and antioxidant activity of the three vegetables in both extraction procedures, which is linked to its health-promoting potential and suggests that it could be used in the creation of antioxidant drugs. As a result, these findings aid in the development of economical, high-nutrient-value foods for consumers throughout this period.

A Critical Appraisal of the Most Recent Investigations on Ora-Pro-Nobis (Pereskia sp.): Economical, Botanical, Phytochemical, Nutritional, and Ethnopharmacological Aspects.

Pereskia aculeata Miller and Pereskia grandfolia Haw, known as 'ora-pro-nobis', are unconventional vegetables belonging to the Cactaceae family, native to the Americas and common in the northeast and southeast regions of Brazil. This review attempts to present a balanced account of both the methods used for obtaining extracts from the diverse parts of the plants and the results that were obtained in terms of their applicability to foods and other products with biological activities. Attention will also be devoted to the properties of their bioactives and their applications to real food products. Methods for obtaining extracts from the diverse parts of the plants will be analyzed, as well as the chemical nature of the bioactives that were hitherto identified. Next, the applicability of ora-pro-nobis in either its integral form or in the form of extracts or other products (mucilages) to the production of food and dietary supplements will be analyzed. The species have been extensively investigated during the last few decades. But, the determination of chemical structures is frequently incomplete and there is a need for new studies on texture determination and color evaluation. Further studies exploring the fruit and flowers of P. aculeata are also required.

Biosynthesis of silver nanoparticles using aqueous extract of Lepidium meyenii and testing their antimicrobial activity

Lepidium meyenii herb (maca) belongs to the cruciferous family that includes broccoli, radish, watercress, cabbage and turnip. It is also available as a dietary supplement in the form of capsules and liquid extracts. Silver nanoparticles were made using the aqueous extract of maca root for the first time locally and worldwide. As a reducing agent, the extract was utilized. Several approaches were used to diagnose silver nanoparticles, including scanning electron microscopy, atomic force microscopy, FT-IR and UV-vis spectrophotometer analyses. The diagnostic results showed the formation of nanoparticles in various shapes, with a diameter ranging from 56.11 nanometers. The optimum conditions for the bio-synthesis of silver nanoparticles were determined. The optimal conditions were pH 7, 37 °C, with a concentration of 1 mmol silver ions. These are the ideal conditions for making silver nanoparticles from L.meyenii. The antibacterial effectiveness of biosynthesized AgNP against Staphylococcus aureus was found to be very significant. This work promotes green synthesis of AgNP for a range of applications that require low toxicity and are ecologically friendly.

Biological activity of optimized phenolic extracts of quince (Cydonia oblonga Miller) parts before and after simulated in vitro gastrointestinal digestion

In this study, the phenolic extracts of Eşme quince parts (pulp, peel, seed, juice, and leaf) were obtained under optimized extraction conditions. Then, the total phenolic content (TPC), the quantities of main phenolic compounds, antioxidant, and antimicrobial activity and the change in bioactivity properties (TPC, antioxidant capacity, and antimicrobial activity on the same sixteen microorganisms) after in vitro digestion of each quince part were evaluated. The order of TPC and antioxidant activity was determined as leaf > peel > juice > pulp > seed. After in vitro gastrointestinal digestion, a decrease was observed for the TPC (average 5-fold reduction) and antioxidant activity (more than 2.5-fold reduction) in all quince parts except quince seed than their extract forms. The quince leaf extract exhibited the highest antibacterial activity. Overall, this study exhibited that the quince leaf was considered a promising, cheap, and natural source for nutritional or pharmaceutical applications with biological activity properties.

Date Palm Extract (Phoenix dactylifera) Encapsulated into Palm Oil Nanolipid Carrier for Prospective Antibacterial Influence

It is worthwhile to note that using natural products today has shown to be an effective strategy for attaining the therapeutic goal with the highest impact and the fewest drawbacks. In Saudi Arabia, date palm (Phoenix dactylifera) is considered the principal fruit owing to its abundance and incredible nutritional benefits in fighting various diseases. The main objective of the study is to exploit the natural products as well as the nanotechnology approach to obtain great benefits in managing disorders. The present investigation focused on using the powder form of date palm extract (DPE) of Khalas cultivar and incorporates it into a nanolipid formulation such as a nanostructured lipid carrier (NLC) prepared with palm oil. Using the quality by design (QbD) methodology, the most optimized formula was chosen based on the number of assigned parameters. For more appropriate topical application, the optimized DP-NLC was combined with a pre-formulated hydrogel base forming the DP-NLC-hydrogel. The developed DP-NLC-hydrogel was evaluated for various physical properties including pH, viscosity, spreadability, and extrudability. Additionally, the in vitro release of the formulation as well as its stability upon storage under two different conditions of room temperature and refrigerator were investigated. Eventually, different bacterial strains were utilized to test the antibacterial efficacy of the developed formulation. The optimized DP-NLC showed proper particle size (266.9 nm) and in vitro release 77.9%. The prepared DP-NLC-hydrogel showed acceptable physical properties for topical formulation, mainly, pH 6.05, viscosity 9410 cP, spreadability 57.6 mm, extrudability 84.5 (g/cm2), and in vitro release 42.4%. Following three months storage under two distinct conditions, the formula exhibited good stability. Finally, the antibacterial activity of the developed DP-NLC-hydrogel was evaluated and proved to be efficient against various bacterial strains.

Effect of (poly)phenol-rich ‘Daux Belan’ apple supplementation on diet-induced obesity and glucose intolerance in C57BL/6NCrl mice

Obesity is a state of metabolic dysfunction that can lead to dyslipidemia and impaired glucose homeostasis. Apple polyphenols have been shown to ameliorate dyslipidemia/metabolic dysfunction in humans. The influence of apple (poly)phenols on energy metabolism in high-fat (HF) diet-induced obese mice remains controversial. This study examined the effect of dietary supplementation of (poly)phenol-rich ‘Daux Belan’ apple (DB; 6.2 mg gallic acid equivalence (GAE)/mouse/day; 0.15% (poly)phenol) in the form of freeze-dried powder on glucose and lipid metabolism in male HF-fed C57BL/6NCrl mice, in comparison to low-(poly)phenol-containing ‘Zestar’ apple (Z; 0.4 mg GAE/mouse/day). Obesity, glucose intolerance, hypertriglyceridemia, and hepatic lipid vacuolation were induced by HF feeding while circulating cholesterol levels remained unchanged. DB apple supplementation did not protect against HF-induced body weight gain, hyperglycemia, hepatic triglyceride level elevation, and hepatic lipid vacuolation at the tested dosage. Future studies should be conducted with increased DB dosage and employ apple (poly)phenols supplemented in the form of extracts or sugar-free powder.