@article {2087, title = {Antioxidant, Total Phenolic, and Total Flavonoid of 70\% Ethanol Extract of Avocado Seeds (Persea americana Mill.)}, journal = {Pharmacognosy Journal}, volume = {15}, year = {2023}, month = {August 2023}, pages = {599-605}, type = {Research Article}, chapter = {599}, abstract = {

Avocado seeds (Persea americana Mill.) are high in phytochemicals and are utilized in herbal medicine. The objective of this study is to analyze the antioxidant activities, total phenolics and flavonoids of the P. americana seed extract. P. americana seed extraction was obtained through maceration and reflux using a 70\% ethanol solvent. The results obtained were compared in terms of yield productivity, with yields of 43.07 (\%) and 39.58 (\%) respectively. Phytochemical compounds extracted from P. americana seeds were tested using the phytochemical screening method, the antioxidant activity assay, the total phenolic analysis, and the total flavonoid analysis. The phytochemical screening showed that P. americana seeds contain flavonoids, saponins, phenols, tannins, alkaloids, and quinones. The antioxidant activity of the 70\% ethanol extract of P. americana seeds obtained by maceration and reflux method was 77.298 g/mL and 98.626 g/mL, respectively, meanwhile the IC50 values of vitamin C were 12.883 g/mL. The 70\% ethanol extract of P. americana seeds obtained by maceration and reflux method had total phenolic content of 276.96 mgGAE/g and 294.96 mgGAE/g, and total flavonoid content of 1.73 mgQE/g and 12.70 mgQE/g respectively. This simply implies that the 70\% ethanolic extracts from P. americana seeds obtained through maceration and reflux have strong antioxidant activity.

}, keywords = {Antioxidants, Avocado seeds, DPPH, Persea americana Mill., Total flavonoids, Total phenolics.}, doi = {10.5530/pj.2023.15.126}, author = {Sri Wahyu Ningsih Munthe and Riskianto Riskianto and Denny Juvi and Jessica Novia} } @article {1368, title = {Nutritional and Functional Potential of Selliera radicans Cav., a Chilean Native Halophyte}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {March 2021}, pages = {341-346}, type = {Original Article}, chapter = {314}, abstract = {

Background: Selliera radicans was recognized as one of the foods consumed by the oldest human settlement in America (Monte Verde, Chile) that had a diet with a high component of plants. Objective: This study aims at investigating nutritional and functional characteristics of S. radicans, a native halophyte from Chile. Materials and Methods: An analysis of total protein, carbohydrate, ash, and moisture from S. radicans leaves was performed, using standard methods. The content of macro and micronutrients was quantified by atomic absorption spectrometry. The inulin content was carried out based on the Seliwanoff reactions. S. radicans leaves were extracted with methanol and the total content of phenolic and flavonoids and antioxidant activity were evaluated by spectroscopic method. Results: Leaves from cultivated plants proved to be a suitable source of proteins (7.5 \% on DW), ash (6.8 \% on DW), and a wide range of macro and micronutrients, where Ca, K, and Na had the highest values. In addition, inulin (2.3\% on DW), total phenolics (63.4 GAE/g LDW) and flavonoids (21.8 QE/g LDW), and antioxidant capacity (10 TE/g LDW) were noted. Conclusions: According to the results, cultivated S. radicans leaves are promising sources of food with beneficial health properties.

}, keywords = {antioxidant activity, Goodeniaceae, Inulin, Macro and Micronutrients, Total flavonoids, Total Phenolics}, doi = {10.5530/pj.2021.13.44}, author = {Maria del Pilar Caramantin Soriano and Flavia Schiappacasse and Patricio Pe{\~n}ailillo and Jaime Tapia and Sergio Wehinger and Camilo A Valenzuela-Vasquez and Sarvia M Dur{\'a}n-Pe{\~n}a} } @article {1288, title = {Phytochemical Analysis and Antihyperuricemic Activity of Ethanolic Extract of Moringa oleifera Seeds}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {November 2020}, pages = {1698-1704}, type = {Research Article}, chapter = {1698}, abstract = {

Background: Moringa oleifera is a popular plant that has been known to have several importance biological activities. Objectives: To perform phytochemical analysis, to in vivo evaluate the antihyperuricemic activity and to measure the inhibition of ethanolic extract of Moringa oleifera seed on xanthine oxidase enzyme. Materials and Methods: The seed were collected from Sigi regency, Central Sulawesi, Indonesia. Extraction was performed by maceration method with ethanol 96\% as a solvent. Thin layer chromatography (TLC), high performance liquid chromatography (HPLC) and spectrophotometric UV-Vis were used to determine the phytochemical contents. The antihyperuricemic activity was evaluated by using in vivo model of rat induced by potassium oxonate. The xanthin oxidase inhibitory activity was also determined by spectroscopic method by measuring the catalytic rate of xanthin oxidase enzyme. Results: Phytochemical analysis confirmed the presence of alkaloids, terpenoids, flavonoids, phenolics, saponin and tannin. Quantitative determination of total flavonoids and quercetin concentration found the values of 82.17 {\textpm} 0.684 mg QE/g and 0.5131 {\textpm} 0.0022 mg/g dried extract, respectively. Ethanolic extract of Moringa oleifera seed have potential antihyperuricemic activity in which it can significantly reduce the serum uric acid level on potassium oxonate-induced hyperuricemic rat model with the effective dose of 125 mg/ kg BW. Xanthin oxidase inhibitory activity showed the moderate activity with IC50 of 88.39 μg/ml. Conclusion: This study confirmed the potential of Moringa oleifera seed ethanolic extract, growing in Sigi, Central Sulawesi to be developed as herbal medicinal source for antihyperuricemic drug.

}, keywords = {Antihyperuricemic, Moringa oleifera, Quercetin, Total flavonoids, Xanthin Oxidase}, doi = {10.5530/pj.2020.12.229}, author = {Nurlina Ibrahim and Siti Nuryanti and Asriani Hasanuddin and Muhammad Sulaiman Zubair} } @article {1071, title = {Potential of Hard Candy Containing Spray-Dried Vernonia cinerea Extract with Total Phenolic Compounds, Total Flavonoids and Nicotine Replacement as an Anti-Smoking Aid}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {February 2020}, pages = {35-43}, type = {Original Article}, chapter = {35}, abstract = {

Backgound: Vernonia cinerea (VC) is a natural plant claimed to reduce cigarette smoking. Some pilot anti-smoking products with nicotine replacement, such as lozenges or gum, have been presented, but with some adverse effects. Thus, application of VC as a new-anti-smoking product is very challenging. Objectives: The aims of this study were to compare the active compounds; total phenolic compounds, total flavonoids and nicotine, and study antioxidant activity on scavenging 2,2{\textquoteright}-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) and 1,1-diphenyl-2-picryl hydrzayl (DPPH) radicals of extracts prepared by spray drying (SD) and freeze drying (FD) techniques for pilot hard candy. Methods: Raw VC materials of mixed parts, i.e., the stem, flowers and leaves, were made to form extracts by FD and SD techniques. Then, extract from the SD technique was manufactured industrially into hard candy containing glucose syrup and refined glucose. Total phenolic compounds, total flavonoids, nicotine, scavenging activity of extracts, VC hard candy and placebo candy were evaluated by folin-ciocalteau reagent, aluminum chloride colorimetric assay, high-performance liquid chromatography, ABTS cation decolorization and DPPH protocols. Results: Total phenolic compounds were significantly different between extracts, but total flavonoids and nicotine were slightly higher in SD extract. Antioxidant activity of both extracts on ABTS radicals was not significantly different, but the half-maximal inhibitory concentration (IC50) on DPPH radicals was significantly higher in SD extract when compared to the FD extract. Finally, total phenolic compounds, total flavonoids and nicotine, as well as scavenging activity could be detected in hard candy. Conclusion: VC can be used as an anti-smoking aid with nicotine replacement and anti-oxidant compounds in pilot hard candy.

}, keywords = {antioxidant activity, Hard candy, Nicotine, Total flavonoids, Total phenolic compounds, Vernonia cinerea}, doi = {10.5530/pj.2020.12.7}, author = {Rungtiwa Kanthain and Supawatchara Singhatong and Surapol Natakankitkul and Nathupakorn Dechsupa and Jirakrit Leelarungrayub} } @article {979, title = {Correlation of Total Phenolic, Flavonoid and Tannin Content of Bryophyllum pinnatum (Lam.) (Crassulaceae) Extract with the Antioxidant and Anticholinesterase Activities}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {September 2019}, pages = {1003-1009}, type = {Original Article}, chapter = {1003}, abstract = {

Bryophyllum pinnatum is a perennial herb used in traditional medicine against varieties of ailments such as memory disorder. This study quantitatively estimated the total phenolic (TPC), total flavonoid (TFC) and total proautocyanidin (TPA) contents of extract and fractions of B. pinnatum and correlated them with its antioxidant and anticholinesterase activities. Methanolic extract of the dried leaves was partitioned into n-hexane, ethyl acetate and aqueous fractions. Total phenolic, flavonoids and proanthocyanidins content were estimated as gallic acid or quercetin equivalents. DPPH and nitric oxide scavenging activity as well as ferric reducing power assays were used to evaluate antioxidant activity, using 2,6-di-tert-butyl- 4-methylphenol (DDM) and ascorbic acid as standards. In vitro anticholinesterase activity was evaluated by Ellmann{\textquoteright}s colorimetry assay with phsiostigmine (serine) and donepezil as positive control. The crude methanol extract had the highest phenolic, flavonoid and tannin content. The ethyl acetate fraction had the highest DPPH radical scavenging effect (IC50 0.004 mg/ml) while the aqueous fraction had the highest NO scavenging and ferric reducing effects with values of IC50 0.012 mg/ml and 0.007 mg/ml respectively. The ethyl acetate fraction had the best cholinesterase inhibitory effect (IC50 0.951 μg/ml AChE; 3.546 μg/ml BuChE). DPPH radical scavenging effect correlated strongly with total phenolic, flavonoids and proautocyanidins (r2 0.896, 0.651 and 0.619 respectively) while ferric reducing power showed weak correlation and NO scavenging as well as AChE inhibition had no correlation. The study shows DPPH radical scavenging could be due to the phenolic content while other class of compounds are responsible for the cholinesterase inhibition.

}, keywords = {Anticholinesterase, Antioxidant, Bryophyllum pinnatum, Total flavonoids, Total Phenolics}, doi = {10.5530/pj.2019.11.158}, author = {Taiwo O. Elufioye and Damilare M. Olusola and Adebola O. Oyedeji} } @article {685, title = {GC-MS Analysis and Antioxidant Activity of Spondias purpurea L (Anacardiaceae)}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {August 2018}, pages = {941-945}, type = {Original Article}, chapter = {941}, abstract = {

Background: There are ongoing efforts to identify the chemical composition of plants used as food or medicines in other to correlate their components with the numerous claims of their medicinal usefulness in folklore. Objective: This work is aimed at profiling the phytochemical composition of Spondias purpurea using GC-MS, as well as to determine the total phenolic content, total flavonoid content and the antioxidant capacity by DPPH radical scavenging assay. Methods: Whole fruit and stem bark of Spondias purpurea were collected, dried, extracted with methanol and concentrated in vacou before assessing them for their total phenolic content by Folin-Ciocalteu\’s phenol reagent method; total flavonoid content and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activities. The whole fruit and stem bark extracts were partitioned into n-hexane, dichloromethane, ethyl acetate and aqueous fractions. The n-hexane fraction of the stem bark and whole fruit were analyzed on GC-MS. Results: The stem bark had the highest phenolic content of 29.81\± 1.18 GAE mg/g. Similarly, free radical scavenging activities assay showed the stem bark to be most active with IC50 of 6.20 \± 1.51\μg/ml, better than the standard, ascorbic acid with IC50 of 11.51 \± 0.3\μg/ml. The n-hexane partitioned fractions of the fruit and stem bark on GC-MS analysis showed 9 prominent compounds including 9,17-Octadecadienal (5.43\%), 3-((4Z,7Z)-Heptadeca-4,7-dien-1-yl) phenol(12\%), (Z)-3-(Heptadec-10-en-1-yl) phenol (11.76\%), n-Hexadecanoic acid (7.07\%) and 13 compounds including 9,17-Octadecadienal (20.51\%),trans-13-Octadecenoic acid (12.61\%), Pentadecanoic acid (8.3\%), n-Hexadecanoic acid(15.24\%). Conclusions: This study provides justification for some of the folkloric use of Spondias purpurea.

}, keywords = {antioxidant activity, DPPH, GC-MS, Spondias purpurea, Total flavonoids, Total Phenols}, doi = {10.5530/pj.2018.5.159}, author = {Taiwo Olayemi Elufioye and Tomayo Ireti Berida} } @article {259, title = {Effect of Gamma Irradiation on Angiotensin Converting Enzyme Inhibition, Antioxidant Activity, Total Phenolic Compound and Total Flavonoid of Peperomia pellucida Herbs Extract}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {244-248}, type = {Original Article}, chapter = {244}, abstract = {

Introduction: Peperomia pellucida L. Kunth has been reported to have some biological activities such as antihypertensive and antioxidants. Herbal materials susceptible to contamination during processing and storage which can shortens their shelf life. Gamma-irradiation has been used as a method for preservation. Methods: This research aimed to analyze the effect of gamma-irradiation on inhibition activity of angiotensin converting enzyme (ACE), antioxidant activity, total phenol content, total flavonoid, and thin layer chromatography profiles of P. pellucida L. Herbs extract. The extract was irradiated with 60Co gamma rays at 2.5; 5; 7.5; dan 10 kGy. Results: Irradiation up to 10 kGy did not change ACE inhibitory activity and TLC profile. No significant differences were noted in the inhibition activity of ACE and the type of chromatogram profiles between non-irradiated extract and irradiated extracts up to a dose of 10 kGy while total flavonoids showed a significant decrease. In addition, total phenolic content and antioxidant activity showed a significant increase of extracts were irradiated up to 5 kGy and decrease at dose 7,5 kGy and 10 kGy. Gamma-irradiation up to 10 kGy didn\’t affect the activity of ACEinhibitor in-vitro while significant difference (P \<0.05) of antioxidant activity, total flavonoids and phenolic content of the extract P. Pellucida. Conclusion: In conclusion, gamma - irradiation can be used as a preservation method for ethanol extract P. Pellucida L. Kunth herbs.

}, keywords = {ACE, Antioxidant, Extract, Gamma-irradiation, Peperomia pellucida, Total flavonoids, total phenolic}, doi = {10.5530/pj.2017.2.41}, url = {http://phcogj.com/fulltext/308}, author = {Anies Monica Adhitia and Alisa Nur Octaviani and Rissyelly and Katrin Basah and Abdul Mun{\textquoteright}im} } @article {1535, title = {Alpha glucosidase inhibitory activity of hydro-methanolic (2:3) extract of seed of Swietenia mahagoni (L.) Jacq}, journal = {Pharmacognosy Journal}, volume = {6}, year = {2014}, month = {18th Feb,2014}, pages = {63-69}, type = {Original Article}, abstract = {

Objectives: Present study investigated the effect of hydro-methanolic extract of seed of Swietenia mahagoni (HMESM) on a-glucosidase inhibition in normal and streptozotocin-induced diabetic rats. Methods: Oral carbohydrate tolerance tests were performed in 16h fasted normal and diabetic rats loaded with starch or sucrose or glucose at the dose of 3g/kg, 15min after administration of 250 (S1), 500 (S2), 1000 (S3) mg/kg of HMESM, vehicle (control),or pretreatment at the dose of 10 mg/kg of acarbose (Acar). Blood samples were analyzed for glucose levels at 0, 30th, 60th, and 120th min after respective treatments and the peak blood glucose (PBG) levels and area under the curves (AUC) were determined. Results: Results demonstrated that 500 mg, 1000 mg/kg of HMESM reduced and prolonged the PBG and decreased AUC simultaneously after starch and sucrose loading in normal and diabetic rats. Similarly acarbose also reduce the sucrose and starch induced blood glucose excursion, whereas it had no peak blood glucose suppressive effect after exogenous glucose load in both normal and diabetic rats. On the other hand, phytochemical study of the said extract revealed that it is rich in phenolic compounds (46.25 mg of gallic acid equivalent/g of extract) and flavonoids (231.72 mg of quercetin equivalent/g of the extract), which may may responsible for pharmacological activities. Conclusion: The HMESM may have PBG suppressive effect in post-carbohydrate challenged state as evidenced by reduced PBG and AUC. This suggest that HMESM may be used effectively as a safer alternative to control postprandial hyperglycemia especially in pre-diabetic and diabetic patients.

Key words: Streptozotocin,∝-glucosidase, Postprandial hyperglycemia, Total flavono.

}, keywords = {a-glucosidase, Postprandial hyperglycemia, Streptozotocin, Total flavonoids}, author = {Tushar Kanti Bera, and Kausik Chatterjee, and Debidas Ghosh} }