Activity Of Ethanolic Extract Research Articles

Phytochemical profiling and therapeutic potential of Baliospermum montanum: A promising inhibitor of COX-2/15-LOX enzymes and NO production in LPS-stimulated RAW 264.7 macrophages

IntroductionBaliospermum montanum (BM) is traditionally used to treat various ailments such as inflammation, rheumatoid arthritis, pain, etc. The root part of BM is well documented for its anti-inflammatory activity. However, the present study evaluates the multitargeted anti-inflammatory activity of the less explored BM leaf part. This is the first study investigating the COX-2, 15-LOX dual inhibiting potential and NO production inhibition of BM leaf extracts, fractions and compounds. MethodsThe BM leaf's water, ethanol, and hydroethanolic extracts were evaluated for anti-inflammatory activity by assessing the inhibition of COX-2, 15-LOX, and NO production. Additionally, the antioxidant potential of the extracts was determined through DPPH, ABTS, and FRAP assays. The most active ethanol extract was fractionated into 12 fractions and tested for anti-inflammatory, antioxidant, phenol and flavonoid content. Compounds were isolated from the most active fractions and identified using NMR techniques. The isolated compounds were checked for their anti-inflammatory activity. In addition, HPLC analysis of ethanol extract, fractions, and isolated compounds was carried out. ResultsThe ethanol extract exhibited higher inhibition of COX-2, 15-LOX enzymes and NO production (IC50 35.75 ± 1.95 μg/mL) in LPS-treated RAW 264.7 cells. It also showed higher antioxidant activity. Following the fractionation of the ethanol extract using different solvents, only the ethyl acetate fractions demonstrated inhibition of COX-2, 15-LOX enzymes, and NO production. The ethyl acetate and acetone fractions are excellent sources of antioxidants, phenolic and flavonoid compounds. An effort to find the active principles from these ethyl acetate fractions resulted in the isolation and identification of four potent anti-inflammatory agents, namely, (-)-epiafzelechin, afzelechin-(4α→8)-afzelechin, afzelechin-(4α→8)-epiafzelechin and β-sitosterol-d-glycoside. The first three compounds were reported for the first time from this plant and afzelechin-(4α→8)-afzelechin was found to be a potent inhibitor of the COX-2/15 LOX enzyme as well as NO production (IC50 = 5.9 ± 1.09 µM). ConclusionBased on these findings, we conclude that ethanol extract, fractions, and isolated compounds exert anti-inflammatory activity through multiple therapeutic mechanisms. The present study scientifically supports the traditional use of plant BM for treating inflammation and other related disorders.

Safflower extract (Carthamus tinctorius Linn.) suppresses proinflammatory cytokines level in rheumatoid arthritis mice model stimulated by complete Freund’s adjuvants

Rheumatoid arthritis (RA) is an autoimmune disease characterized by inflammation of the synovial membrane, and swelling, associated with excessive production of proinflammatory cytokines. In addition, anti-citrullinated protein antibodies is excessively high in RA. Carthamus tinctorius Linn. (C. tinctorius), commonly known as Safflower, is widely used as traditional medicine in Indonesia and has anti-inflammatory properties. This study aims to determine cell viability on HEK293 cells and the anti-RA activity of the ethanol extract of C. tinctorius on reducing edema in animal models of RA mice and to determine the anti-RA activity ethanol extract C. tinctorius against rheumatoid factor (RF) in RA mice. In this study, HEK293 cell line was treated with C. tinctorius extract at various concentrations. In addition, mice’s paws were examined after being injected with complete Freund’s adjuvant (CFA) as an intraplantar RA inducer and treated with 2.5 mg/kg body weight (BW) of methotrexate, and extract C. tinctorius at various concentrations orally once a day for 14 days. Then, the paw’s thickness was measured using a gauge meter, arthritis index scoring was observed daily, and agglutination in the RF test was observed on the 17th and 31st days. The collected data was analyzed using one-way analysis of variance. Moreover, an In-Silico test was carried out by measuring the affinity and stability of C.tintorius extract as an anti-RA agent against the cytokines IL-1β and tumor necrosis factor-alpha. The test results showed C. tinctorius at various concentrations were safe to HEK293 cell lines and the administration of C. tintorius extract at 100, 200, and 400 mg/kg BW doses could reduce paw thickness, arthritis index scoring >1, and no agglutination occurred in the RF test. It can concluded that the C. tintorius extract is safe to HEK293 and has activity against CFA-induced RA.

Phytochemical Profiling and Pancreatic Lipase Inhibitory Activity of <i>Flacourtia inermis</i> Roxb. Fruits

Objectives: The present research work was carried out to explore the potential use Flacourtia inermis [FI] fruits for the prevention and treatment of obesity through pancreatic lipase inhibition in vitro. The study also aimed to investigate the chemical profiling of ethanol extract of FI using High-Performance Thin Layer Chromatography (HPTLC), High-Resolution Liquid Chromatography (HR-LC/MS), and Nuclear Magnetic Resonance Spectroscopy (NMR). Materials and Methods: Dried fruits of Flacourtia inermis were pulverised and subsequently extracted using various solvents in sequential steps of increasing polarity, such as hexane, ether, chloroform, ethyl acetate, ethanol, and water. After phytochemical analysis by preliminary chemical testing various extracts were evaluated for their ability to inhibit pancreatic lipase, and the ethanol extract was found to have an IC<sub>50</sub> close to that of reference drug orlistat. The most potent ethanol extract was analysed by HPTLC and separated through column chromatography, and further analysis was performed by HR-LC/MS and 1H-NMR techniques. Results: The presence of various phytoconstituents in this plant was detected using different types of analytical techniques. PL lipase inhibitory activity was observed in extracts in a dose dependent manner. Performing PL inhibition assay, it was found that the ethanol fruit extracts have lipase inhibitory activity with an IC<sub>50</sub> value of 377.15 μg/ml. HPTLC finger printing of the ethanol extract showed the presence of various bioactice compounds. HR-LC/MS study of the most active ethanol extract indicated the presence of different phytochemicals, such as phenolics and flavonoids. Column chromatographic separation of ethanol fruit extract of FI followed by structural elucidation using various spectral studies demonstrated the presence of two compounds namely myricetin and quinic acid. Conclusion: The study suggests that the edible fruits of Flacourtia inermis have the potential to inhibit pancreatic lipase enzyme and therefore, may be recommended for the management of obesity. Additionally, our research sheds light on the phytochemistry of flacourtia species and may lead to the development of novel chemical entities as potential pancreatic lipase inhibitors.

LC-MS Analysis, Computational Investigation, and Antimalarial Studies of Azadirachta indica Fruit.

Malaria is a deadly disease that continues to pose a threat to children and maternal well-being. This study was designed to identify the chemical constituents in the ethanolic fruit extract of Azadirachta indica, elucidate the pharmacological potentials of identified phytochemicals through the density functional theory method and carry out the antimalarial activity of extract using chemosuppression and curative models. The liquid chromatography-mass spectrometry (LC-MS) analysis of the ethanolic extract was carried out, followed by the density functional theory studies of the identified phytochemicals using B3LYP and 6-31G (d, p) basis set. The antimalarial assays were performed using the chemosuppression (4 days) and curative models. The LC-MS fingerprint of the extract led to the identification of desacetylnimbinolide, nimbidiol, O-methylazadironolide, nimbidic acid, and desfurano-6α-hydroxyazadiradione. Also, the frontier molecular orbital properties, molecular electrostatic potential, and dipole moment studies revealed the identified phytochemicals as possible antimalarial agents. The ethanolic extract of A indica fruit gave 83% suppression at 800 mg/kg, while 84% parasitaemia clearance was obtained in the curative study. The study provided information about the phytochemicals and background pharmacological evidences of the antimalarial ethnomedicinal claim of A indica fruit. Thus, isolation and structure elucidation of the identified phytochemicals from the active ethanolic extract and extensive antimalarial studies towards the discovery of new therapeutic agents is recommended for further studies.

Protective effects of Rubus tereticaulis leaves ethanol extract on rats with ulcerative colitis and bio-guided isolation of its active compounds: A combined in silico, in vitro and in vivo study

The aim of this study was to evaluate the therapeutic effect of active ethanol extract obtained from the leaves of Rubus tereticaulis (RTME) against colitis, and to purify major compounds from this extract by bioassay-directed isolation. Rats with colitis induced via intra-rectal acetic acid administration (5%, v/v) received RTME or sulfasalazine for three consecutive days. On day four, all rats were decapitated, and the colonic tissue samples were collected for macroscopic score, colon weight, reduced glutathione (GSH), myeloperoxidase (MPO), and malondialdehyde (MDA) analyses. The active compounds and chemical composition of RTME were determined by bio-guided isolation and LC-MS/MS, respectively. Compared to the colitis group, the rats treated with RTME displayed significantly lowered macroscopic scores and colon wet weights (p < 0.001). These effects were confirmed biochemically by a decrease in colonic MPO activity (p < 0.001), MDA levels (p < 0.001), and an increase in GSH levels (p < 0.001). Kaempferol-3-O-β-d-glucuronide (RT1) and quercetin-3-O-β-d-glucuronide (RT2) were found to be the major compounds of RTME, as evidenced by in vitro anti-inflammatory and antioxidant activity-guided isolation. Their anti-inflammatory/antioxidant activities were also predicted by docking simulations. Additionally, quinic acid, 5-caffeoylquinic acid, quercetin pentoside, quercetin glucoside, quercetin-3-O-β-d-glucuronide, kaempferol-3-O-β-d-glucuronide, and kaempferol rutinoside were identified in RTME via using LC-MS/MS. RT2, along with other compounds, may be responsible for the observed protective action of RTME against colitis. This study represents the first report on the beneficial effects of RTME in an experimental model of colitis and highlights the potential future use of RTME as a natural alternative to alleviate colitis.

Plumeria acuminata: A Systematic In Vivo Evaluation for its Antiovulatory and Anti-implantation Features

Background: Fertility control becomes necessary for under-developed and developing nations for the betterment of the economy, environment, and society. Plant Plumeria acuminata, “Temple tree or Frangipani,” of the Apocynaceae family, has exhibited several activities similar to contraceptive medicine and is widely distributed in India. Objective: Present investigation aimed to study the anti-ovulatory and anti-implantation activities of ethanolic extract from P. acuminata leaves and roots in Wistar rats. Methods: Ethanolic extracts of P. acuminata leaves and roots were subjected to qualitative phytochemical analysis and acute toxicity test. Immature female rats were used to explore anti-ovulatory characteristics by administering HCG as a standard ovulation-inducing drug. Mated females were used for exploring anti-implantation characteristics. Levonorgestrel and Ethinylestradiol were administered as standard anti-implantation drugs. Morphological, hematological, hormonal, and histological examinations were performed. Results: LD50 value, i.e., 2000 mg/kg from acute toxicity test, resulted in the selection of 100, 200, and 400 mg/kg dose values for both leaf and root extracts. Treatment with these brought ~2-54%, ~5- 48%, and ~1-68% changes respectively in the hormonal, growth factors’ and cytokines’ profiles. Ovarian histology revealed restricted follicle maturation and ovulation, whereas uterine histology unveiled a ~5-28% decrease in the endometrium thickness, making it unreceptive for implantation after treatment with PAL and PAR extracts. Conclusion: Anti-ovulatory and anti-implantation results obtained here can be attributed to the presence of plumericin, sterol, as well as triterpene groups of phytochemicals from ethanolic extracts of leaves and roots, making them potent contestants for studies on future contraceptive medicines.

The Anthelmintic Activity Of Etanol Extract of Porang Tubers Against Fasciola gigantica In Vitro

This study aims to determine the anthelmintic activity ethanol extract of porang tubers (A. oncophillus) against F. gigantica worms in vitro. There were five treatments and each treatment was done in five replications and used 10 F. gigantica. The treatments of this research were K- with CMC Na 1%, K+ with Albendazole 2.4 mg/ml, P1 with extract concentration 5%, P2 with extract concentration 10%, P3 with extract concentration 20%. The results showed that the extract of Porang tuber (A. oncophillus) had an anthelmintic effect against F. gigantica worms in vitro. In the extract with a concentration of 20%, there were anthelmintic properties that almost the same as Albendazole. The higher the extract concentration, the higher the anthelmintic properties. The longer the immersion time, the higher the number of dead worms. The morphological changes was evaluated by light microscopic examination and the results showed many histopathological changes on the morphology of F. gigantica. The results indicate that the possible use of the tubers as a potential anthelmintic against F. gigantica.

Anticancer and antioxidant activity of ethanolic extract of Clove (Syzygium aromaticum) on oral squamous cell carcinoma cell lines (KB cell lines)- An In-vitro study

Cloves (Syzygium aromaticum) as been used as traditional medicine for many years and they possess antibacterial, antifungal and antiviral properties. Clove is known for its anticancer property on various cancer cell lines and is well established, but its anticancer effect on OSCC cell lines is less known. Aim of the study was to determine the anticancer and antioxidant effect of Syzygium aromaticum extract on OSCC cell lines (KB cell lines) and compare the same with normal mouse fibroblasts cell lines (L292 cell lines). KB cell lines and L292 cell lines were commercially obtained. Clove was obtained from local market and ethanolic extract (EC) of clove was prepared. Anticancer activity was assessed by MTT, neutral red, DAPI and Double staining assay and antioxidant assay was carried out by FRAP, PM and DPPH assay. The antioxidant property of EC of clove increased with increase in the concentration in a dose dependent manner. Both MTT and Neutral Red assay showed increase in cell death with increase in concentration of EC of clove. Double staining and DAPI showed increase in cell death when treated with EC of clove. The anticancer and antioxidant activity of EC of clove was comparable with standard drug used in the assay. This in vitro study demonstrates effective anticancer and antioxidant activity on KB cell lines when compared to standard control. However, further studies are to be conducted in order to characterize other potential antitumor components of the clove, so that it can be used as therapeutic agent in treating oral carcinoma.

Bioactive-guided isolation and identification of oligostilbenes as anti-rheumatoid arthritis constituents from the roots of Caragana stenophylla

Ethnopharmacological relevanceThe roots of Caragana stenophylla have been used as folk medicine due to the functions of activating blood, diuresis, analgesic and tonicity, especially in treating rheumatoid arthritis and hypertension. However, the anti-rheumatoid arthritis mechanisms and bioactive ingredients have not previously been fully investigated. Aim of the studyThe aim of this study was to assess the anti-rheumatoid arthritis effects of the roots of Caragana stenophylla ethanol extract (EC), elucidate its mechanism of action and identify its active substances. Materials and methodsAnti-rheumatoid arthritis activity of EC was assessed using type II-collagen induced arthritis in rats. Arthritis severity was evaluated by foot paw volume, arthritis index, joint swelling degree and histopathology. The serum inflammatory cytokines and matrix metalloproteinases (MMPs) were also detected by immunohistochemical analysis. In addition, the protein expression of IκB, p-IκB, iNOS and COX-2 was analyzed by western blot. RAW 264.7 macrophage cells were employed to assess the anti-inflammatory effects of fractions and compounds in vitro. UPLC-Q-TOF-MS was adopted to appraise the ingredients of the active fraction of the roots of C. stenophylla. Furthermore, various chromatographic techniques and spectroscopic methods were used for isolation and structure elucidation of compounds. ResultsThe results showed that EC could reduce type II collagen-induced rheumatoid arthritis model arthritic score and histopathology markedly at dose of 240 mg/kg. Besides, EC could suppress the levels of pro-inflammatory cytokines (IL-1β, IL-6, IL-8, IL-17, and TNF-α) and matrix metalloproteinases (MMP-3, MMP-9), and the expression levels of COX-2, p-IκB and iNOS also were declined. While, the levels of IL-10 and IκB were increased. The ethyl acetate fraction exhibited potent inhibitory effects against nitric oxide production in RAW 264.7 macrophage cells. Eleven main components including 1 flavonoid and 10 oligostilbenes from active fraction were isolated by mass directed chromatographic techniques. Their structures were determined on the basis of various spectroscopic methods and by comparison with the published NMR data. ConclusionThe roots of C. stenophylla attenuated arthritis severity, restored serum cytokine imbalances by regulating NF-κB signaling pathway in type II collagen-induced rheumatoid arthritis model. Oligostilbenes were essential ingredients in ethyl acetate extract of C. stenophylla roots. Stilbenes and flavonoids should be responsible for its anti-rheumatoid arthritis activities.

BREAST CANCER ACTIVITY OF ISOLATED COMPOUND FROM TINOSPORA CORDIFOLIA AERIAL

Objectives: The present study undertaken to explore antioxidant and the cell line study of isolated compound from ethanol extract from Tinospora cordifolia belongs to the family Menispermaceae.&#x0D; Methods: The air dried powdered sample of aerial parts of T. cordifolia was extracted in a Soxhlet using five different solvents. Most active ethanol extracts were purified using silica gel column chromatography. Characterized the structure of the isolated compound using Fourier transform infrared spectrum, 1H nuclear magnetic resonance, and liquid chromatography–mass spectrometry studies. Antioxidant and anticancer activity of isolated compound was determined using 2,2-diphenyl-1-picrylhydrazyl and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay.&#x0D; Results: Magnoflorine was isolated from most active ethanol extract from aerial parts of T. cordifolia which shows maximum antioxidant activity 64% at the tested concentration 500 μg/ml. The percentage of cell viability varied from 53.3% at the minimum tested concentration 3.12 μg/ml to 1.9% at the maximum tested concentration 100 μg/ml.&#x0D; Conclusion: The isolated characterized compounds would be useful to prepare plant-based pharmaceutical preparation to treat various diseases linked with human diseases.

THE EFFECT OF PSEUDOCEDRELA KOTSCHYI (SCHWEINF.) HARMS EXTRACTS AGAINST STAPHYLOCOCCUS AUREUS GROWTH

Staphylococcus aureus is a ubiquitous bacteria that causes a serious health problem because of its multi-resistance to antibiotics. The aimed of this study was to evaluate the antibacterial activity of P. kotschyi root against S. aureus ATCC 29213 and S. aureus, a clinical strain. The phytochemical compound was sought in the extracts by standard staining tests and extractions were carried out by fractionation using solvents depletion method with increasing polarity. The method of dilution in liquid medium was used for the antibacterial tests. The results showed that the aqueous extract of the bark was effective against both S. aureus with MICs of 0.39 mg.mL-1. The MICs of ethanolic extract were 0.39 and 0.78 mg.mL-1, respectively on S. aureus ATCC 29213 and S. aureus. The steles of P. kotschyi roots were less effective. The ethanolic and aqueous extracts at concentrations = 2MICs, have been respectively bacteriostatic and bactericidal effects on tested germs. The kinetics of inhibition showed that the aqueous extract of the bark at 0.78 mg.mL-1, completely destroyed the two germs respectively in 4 h and 5 h. The action of ethanolic extract at 0.78 and 1.56 mg.mL-1 occurs late against both S. aureus at 6 h and 7 h. Phytochemical screening revealed the presence of alkaloids, tannins, flavonoids, anthracenes, glycosides, saponosides and sterols, some of that may be responsible for the observed antimicrobial activity. This study proved the antibacterial activity of P. kotschyi roots that can be exploited as an antibiotic in the treatment of S. aureus infections.

Uji Aktivitas Anti-inflamasi Dan Daya Hambat Siklooksigenase-2 ekstrak etanol Daun Malur (Brucea javanica (L.) Merr.)

Inflamasi merupakan suatu respon protektif normal terhadap kerusakan jaringan yang dimediasi oleh enzim siklooksigenase-2 (COX-2). Penelitian ini bertujuan untuk melihat aktivitas antiinflamasi ekstrak etanol daun malur (Brucea javanica (L.) Merr.) dan daya hambatnya terhadap enzim COX-2. Hewan yang digunakan pada penelitian ini ialah tikus putih jantan yang dibagi menjadi 5 kelompok yaitu dosis 250 mg/kg BB, dosis 500 mg/kg BB, pembanding (Celecoxib), kontrol positif dan kontrol negatif. Pengujian aktivitas antiinflamasi dilakukan dengan cara menginduksi telapak kaki tikus dengan karagen kemudian diukur volume udemnya menggunakan pletismometer dan pengukuran daya hambat COX-2 menggunakan microplate readers. Hasil uji analisis menunjukkan bahwa ekstrak etanol daun malur dosis 250 mg/kg BB dan 500 mg/kg BB memiliki aktivitas antiinflamasi secara signifikan (p &lt; 0,05). Dosis 500 mg/kg BB memiliki daya hambat terhadap COX-2 secara signifikan (p &lt; 0,05) sedangkan dosis 250 mg/kg BB tidak memiliki daya hambat terhadap COX-2 secara signifikan. Dapat disimpulkan bahwa ekstrak etanol daun malur memiliki efek antiinflamasi pada dosis 250 mg/kg BB dan 500 mg/kg BB dan daya hambat terhadap COX-2 pada dosis 500 mg/kg BB.

Assessment of Free radical scavenging and digestive enzyme inhibitory activities of extract, fractions and isolated compounds from Tetracera macrophylla leaves

Tetracera macrophylla is a valuable medicinal plant used traditionally for the treatment of various ailments. The crude ethanol extract was analyzed for its total phenolic and flavonoid contents. 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azinobis-3-ethylbenzothiazine-6-sulfonic acid (ABTS) were used to examine the free radical scavenging capacity while enzyme inhibitory activity was assessed using α-amylase and α-glucosidase inhibitory methods. The crude extract was found to be rich in both phenolic and flavonoid contents (417.90 and5.86 μg GAE and QUE/mg dry weight, respectively) thus exhibited good radical scavenging activity on DPPH and ABTS radicals (IC50 values of 16.2 and 14.65 μg/mL, respectively). It also showed a promising concentration dependent enzymes inhibitory activity against α-amylase and α-glucosidase with IC50 of 72.17 and 76.16 μg/mL, respectively. Fractionation of active ethanol extract of T. macrophylla leaves through liquid-liquid partitioning yielded fractions Fa, Fb, Fc, and Fd. Among all the fractions, Fb (ethyl acetate fraction) showed the highest phenolic and flavonoid contents (206.34 μg/ GAE and 4.01 μg/ QUE respectively) and was also found to exhibit highest antioxidant and α-glucosidase inhibitory activities. The most active fraction, Fb upon purification yielded five compounds which were characterized and identified through different spectroscopic techniques. FTQ-4 among the compounds exhibited the strongest free radical and enzyme inhibitory activities followed by FTQ-3. All the compounds were isolated from this plant for the first time and found active against free radicals and/or digestive enzymes.These results further suggest the medicinal potential of T. macrophylla leaves as a therapeutic agent against hyperglycemia and free radical associated problems.

Phytochemicals Analysis and Cytotoxicity Activity of Ethanol Extract of Litseacubeba Lour.Heartwood

&#x0D; Objective: The purpose of this study was to determine the chemical compounds whichcontained in the ethanol extract and cytotoxic activity ethanol extract of Litseacubeba heartwood induced in T47D cells.&#x0D; Methods: The ethanol extract was extracted by maceration using ethanol 96% solvent. Cytotoxic activity was determined with MTT method and the IC50analyzed using SPSS 23.&#x0D; Results: Phytochemicals screening were showed that the ethanol extract of Litseacubeba heartwood contained steroids/triterpenoids, glycosides, alkaloids, flavonoids, saponins and tannins. The IC50of ethanol extract of Litseacubeba heartwood were 349,57 ±0,35μg/ml in T47D cells.&#x0D; Conclusions: Ethanol extract of Litseacubeba heartwood has activity as an anticancer to T47D cells breast cancer agents.&#x0D;

In vitro pharmacological screening of antioxidant, cytotoxic and enzyme inhibitory activities of Citrus aurantifolia Linn. Dried fruit extract

ABSTRACT The Lime Basra (Citrus aurantifolia Linn., Rutaceae) plant also known as dried lime, and Limoo Omani, is used both as a spice in meals and as an herbal tea in the treatment of some diseases in the Middle East. It was aimed to determine the biological activity screening of the 70% methanol, ethanol extracts and infusion which were prepared from dried fruits. 1,1-diphenyl-2-picrylhydrazyl (DPPH●) and 2,2ʹ-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS+●) radical scavenging activities, ferric reducing activity, cytotoxicity on A 549, MCF 7 and L929 cell lines and α-amylase inhibitory effects were determined. According to the results, 70% methanol extract was more active in antioxidant activity tests and ethanol extract was more active in cytotoxicity tests. Interestingly both 70% methanol and ethanol extracts were found to have potent hypoglycemic activity. The present findings shed light on the fact that it is important to research and scientifically evaluate plants with traditional medicinal use.

Comparison of Antioxidant Activity of Ethanol Extract of Fruit and Okra Leaves (Abelmoschus esculentus L. Moench) with DPPH and ABTS Methods

Excessive free radical activity in the human body can be characterized by pathological conditions such as cardiovascular disease, pre-natal complications, arthritis, cataracts, parkinsonism, alzheimer's, and aging. One way to prevent the formation of free radicals is to use nutrients that act as antioxidants. Natural antioxidants found in fruits and vegetables are effective free radicals and are considered non-toxic when compared with synthetic antioxidants, one of which is the okra plant Abelmoschus esculentus L.The purpose of this study is to determine differences in the antioxidant activity ethanol extract of fruit and okra leaves with DPPH method and ABTS method. The method used in this study is the maceration extraction method with 70% ethanol solvent to obtain fruit extracts and okra leaves. The antioxidant activity test was carried out by the DPPH (1,1-diphenyl-2-picrylhydrazi) method by measuring the absorption of a mixture of sample extracts and DPPH by UV-Visible spectrophotometry at a wavelength of 520 nm and by the ABTS method ((2,2-azinobis- (3 -Ethylbenzothiazoline-6-Sulfonic Acid) by measuring the absorption of a mixture of sample extracts and ABTS by UV-Visible spectrophotometry at a wavelength of 734 nm. measurement of antioxidant activity of okra fruit ethanol extract by ABTS method has very strong antioxidant activity (IC50 24.50 ppm)&#x0D;

Composition, color and antioxidant properties of cocoa shell at different roasting temperatures

Cocoa shell is underexploited and is considered as waste. However, roasting cocoa is a fundamental step in producing cocoa products. Composition of the cocoa shell depends on the origin whereas cocoa processing involves fermentation, drying and roasting. However, scarce research has been conducted to analyze the composition of Malaysian cocoa shells at different roasting temperatures. Therefore, this research aims to determine the effect of different roasting temperatures (110, 120, 130, 140 and 150°C) on the proximate composition, colour and antioxidant activity of cocoa shell. Changes in antioxidant activity and polyphenol content were recorded. Fiber and moisture content were significantly (p&lt;0.05) higher in unroasted cocoa shell. However, the protein was found to decrease significantly (p&lt;0.05) after roasting at 150°C (10.93%). Fat content was found higher in roasted cocoa shell at 150°C (6.82%) compared to the unroasted cocoa shell (6.09%). The colour (L value) recorded significantly (p&lt;0.05). the highest for unroasted cocoa shell (51.28) and the lowest at 150°C (47.93), DPPH radical scavenging activity of ethanolic extract of cocoa shell was significantly (p&lt;0.05) higher in 0% ethanol concentration compared to other ethanol concentrations (20, 50, 80 and 100%). The roasted cocoa shell may be considered as a source of natural antioxidants for functional food development and intermediate food ingredient.

Hair Growth Promoting Effect of Dicerocaryum senecioides Phytochemicals

Phytochemicals from Dicerocaryum senecioides were studied for hair rejuvenation activity using BalB/c mice. Solvent extractions and thin layer chromatography (TLC) were used to extract and isolate the phytochemicals respectively. Phytochemicals were identified by spraying with target-specific revealing reagents. In vivo hair growth stimulating activity for each extract was tested on denuded dorsal skin of 5-week old BalB/c mice against the controls and the standard drug minoxidil. The parameters used to evaluate hair growth were hair growth completion time, hair length, hair weight, hair follicle length, and relative hair follicle area. The identified phytochemicals from the active ethanol extract were steroidal glycosides, triterpenoid glycosides, and flavonoid glycosides. Flavonoid glycosides treatment had the uppermost hair rejuvenation capacity as measured by the shortest hair growth completion time (19 days) versus control (29 days) and longest hair length (11.04 mm and 11.86 mm for male and female mice respectively while the control group had 5.15 mm for male mice and 5.33 mm for female mice). Hair growth stimulation by flavonoid glycosides was also dependent on dose concentration. It can be concluded from this study that flavonoid glycosides extracted from the leaves of Dicerocaryum senecioides have remarkable hair rejuvenation capacity in BalB/c mice. The present results provides insights on the use of Dicerocaryum senecioides for hair rejuvenation in traditional practices and on the potential of the plant as a source of novel compounds that can be used as hair growth promoters.

Anti-psoriatic and immunomodulatory evaluation of psorospermum febrifugum spach and its phytochemicals

Psorospermum febrifugum Spach is a flowering plant belonging to the family Hypericaceae. It has a long history for its use in folk-loric medicines as a remedy for leprosy, epilepsy, insomnia, anxiety, subcutaneous wounds and skin diseases. The study was done to evaluate the antipsoriatic and immunomodulatory properties of the leaf and stem bark extracts and fractions of P. febrifugum. The study also aimed to identify the phytochemical content of the most active fraction using TLC-GC–MS analysis. Aqueous and ethanolic extracts from the leaf and stem bark were prepared and tested for activities using the 2, 4-dinitrofluorobenzene (DNFB) induced psoriasis model. Subsequently, the more active ethanol extract of the stem bark was fractionated and tested for activities using anti-inflammatory, haematological and HA models. The TLC separation gave three bands which were subjected to GC–MS analysis for phytochemical identification. Across the studied parameters (EDT, EW, and ET), the ethanolic stem bark extract showed better antipsoriatic activity (93.15%) irrespective of solvent system. Separation of this active extract yielded HF, DCM, EtOAc and MF fractions whose 200 and 400 mg/kg body weight dose respectively reduced epidermal thickness of the studied rats by 18.25–71.12% and 35.77–93.11%. Forty-two phytochemicals were identified from the GC–MS chromatogram of the most active DCM fraction and they are mostly fatty acids. The study showed that P. febrifugum exhibited excellent antipsoriatic and immunomodulatory activities. Haematological and HA titre revealed immunosuppression and strongly indicate that extracts of P. febrifugum Spach is a potential source of effective drug against psoriasis.

Uji Aktivitas Antibakteri Ekstrak Etanol Daun dan Kulit Batang Sawo (Manilkara zapota (L.) Van Royen)

Sawo (Manilkara zapota (L.) van Royen) merupakan tanaman yang hidup di daerah tropis, berbuah sepanjang tahun dan penyebarannya cukup luas di Indonesia. Kandungan metabolit sekunder pada daun dan kulit batang sawo yaitu flavonoid, fenolik dan saponin yang diketahui mampu menghambat pertumbuhan bakteri. Penelitian ini bertujuan untuk mengetahui adanya aktivitas antibakteri dari ekstraketanol daun dan kulit batang sawo terhadap bakteri Staphylococcus aureus dan Propionibacterium acnes. Penelitian ini dilakukan dengan metode difusi cakram dengan variasi konsentrasi ekstrak etanol daun dan kulit batang masing-masing dengan konsentrasi 50%, 25%, 12,5%, 6,25% dan 3,125%, serta kontrol positif klindamisin dan kontrol negatif DMSO. Diameter zona hambat yang terbentuk pada pengujian ekstrak etanol daun sawo terhadap bakteri Staphylococcus aureus dan Propionibacterium acnes dengan konsentrasi 50% masing-masing adalah 14,18±0,13 mm dan 15,33±0,25 mm. Sedangkan diameter zona hambat yang terbentuk pada pengujian ekstrak etanol kulit batang sawo terhadap bakteri Staphylococcus aureus dan Propionibacterium acnes dengan konsentrasi 50% masing-masing adalah 14,22±0,15 mm dan 18,30±0,23 mm. Hasil analisis data menggunakan statistik ANOVA satu arah menunjukkan adanya perbedaan yang signifikan (p&lt;0,05) antara variasi konsentrasi ekstrak. Hasil pengujian aktivitas antibakteri menunjukkan bahwa ekstrak etanol daun dan kulit batang sawo memiliki aktivitas dalam menghambat pertumbuhan bakteri Staphylococcus aureus dan Propionibacterium acnes.