@article {2115, title = {Antioxidant Activities, Total Polyphenol Profile and Anticancer Activity, of Leaf, Bulb and Root Extracts of Tulbaghia violacea from Bloemfontein}, journal = {Pharmacognosy Journal}, volume = {15}, year = {2023}, month = {October 2023}, pages = {761-767}, type = {Original Article}, chapter = {761}, abstract = {

In this study, the effects of the home remedy herb Tulbaghia violacea on antioxidants, total polyphenol activity, and cancer were investigated. Using methanol/dichloromethane and aqueous solvents, the extracts were produced. The antioxidant activity of the extracts was assessed by the 2,2-diphenyl-1- picrylhydrazyl assay, and their phenol content by the gallic acid method. The extracts were found to be inactive or weak against the HeLa (cervix), human cancer cell lines TK-10 (renal), and PC3 (prostate). It is suggested that these three human cell lines be tested against extracts of water and methanol/ dichloromethane at higher concentrations. The plant{\textquoteright}s leaf extract would also be the best substance to test against the human cell lines TK-10, PC-3, and HeLa. The IC50 values for two to three cell lines show that T. violacea plant extracts (\>100 g/ml) have no effect on cells. T. violacea extract has greater antioxidant activity than the control. A thorough phenolic analysis showed that water leaf extract had the highest quantity of phenolics whereas bulb methanol/dichloromethane extract had the lowest. Both the methanol/dichloromethane and the aqueous extracts have the same characteristics for antioxidant activity. In order to enhance food{\textquoteright}s nutritional content and quality while also supporting excellent health, it has been found that phenolic compounds alter the color, flavor, and other sensory characteristics of the meal. Additionally, they help plants defend themselves against harm from ROS, molecular damage, microbial invasion, insects, and herbivores.

}, keywords = {Anticancer activity, Antioxidants, Medicinal plants, Polyphenol, Tulbaghia violaceae}, doi = {10.5530/pj.2023.15.149}, author = {Pakiso Moses Makhoahle and Dijeng Euginiah Rampana} } @article {1838, title = {Quantification of total polyphenols and flavonoids, antioxidant activity, and Sinensetin and Imperatorin contents of Imperata cylindrica root ethanol extract}, journal = {Pharmacognosy Journal}, volume = {14}, year = {2022}, month = {August 2022}, pages = {327-337}, type = {Original Article }, chapter = {327}, abstract = {

Introduction: Imperata cylindrica, commonly known as cogon grass, is currently widely distributed and used as a medicinal plant. The major compounds that have been isolated and identified are polyphenols and flavonoids, which have many biological activities such as antioxidant, and anticancer. Polyphenols and flavonoids are mostly found in the roots and leaves. This study aimed to perform phytochemical screening on I. cylindrica root ethanol extract from Sragen, Central Java, Indonesia and determine the total polyphenol, flavonoid, antioxidant activity and quantify Sinensetin and Imperatorin contents of the extract. Method: Quantification of all parameters were measured using visible spectrophotometric methods. Total polyphenol, total flavonoid contents, as well as antioxidant activity were measured using Folin-Ciocalteu reagent, aluminum chloride reagent, and 1,1-diphenyl-2-picrylhydrazyl, respectively, and quantification of Sinensetin and Imperatorin were measured using High Performance Liquid Chromatography. Results: I cylindrica root ethanol extract had a total polyphenol content of 1.109\% gallic acid equivalent, total flavonoid content of 0.1\% quercetin equivalent, and antioxidant activity IC50 824.30 μg/ml. Sinensetin and Imperatorin were also identified in Fractions 1 to 11 with concentrations of 0.0157 and 0.0178 mg/kg extract, respectively. Conclusion: I. cylindrica root ethanol extract from Sragen had active phytochemical compounds of polyphenols, flavonoids, and antioxidants as well as Sinensetin and Imperatorin.

}, keywords = {Antioxidant, Flavonoid, Imperata cylindrica, Polyphenol}, doi = {10.5530/pj.2022.14.103}, author = {Raden Anita Indriyanti and Eko Fuji Ariyanto and Hermin Aminah Usman and Ristaniah Rose Effendy and Diah Dhianawaty} } @article {1423, title = {Elastase Inhibitory Activity, Determination of Total Polyphenol and Determination of Total Flavonoids and Pharmacognosy Study of Faloak Plant (Sterculia quadrifida R.Br) from East Nusa Tenggara-Indonesia}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {May 2021}, pages = {758-764}, type = {Research Article}, chapter = {758}, abstract = {

Introduction: Faloak (Sterculia quadrifida R. Br) is one of the typical plants of East Nusa Tenggara (NTT). Faloak contain flavonoid and polyphenol compounds, and show strong antioxidants activity which potentially correlated with its elastase inhibitory activity. Therefore, in this research, elastase inhibitory activity on various part of Faloak plant was investigated. Objective: The purpose of this research was to investigate the elastase inhibitory activity, determination of total polyphenol, determination of total flavonoids, and also pharmacognosy characterization of Faloak leaves, roots, stems and stem barks. Methods: Sample of leaves, roots, stems, and stem barks were extracted by 70\% ethanol using ultrasound-assisted extraction (UAE). Phytochemical screening, microscopic identification and elastase inhibitory activity testing were performed on the leaves, roots, stems, and stem barks extract. This extract with the highest elastase inhibitory activity was then determined for its total polyphenol content and of total flavonoids content. Results: UAE method with 70\% ethanol successfully extracted active compounds from leaves, stems, roots, and stem barks of Faloak. Extract of all Faloak parts contained alkaloids, flavonoids, tannins, terpenes, and glycosides. The extract of Faloak stem barks showed the strongest elastase inhibitory activity as compared to the extract from other parts, with IC50 of 73.7 μg/mL. Alkaloid, flavonoid, tannin, terpene, and glycoside were detected as secondary metabolite in the extract of leaves, roots, stems and stem barks. The extract of Faloak stem barks showed the highest elastase inhibitory activity with IC50 73.7 μg/mL. The total flavonoids and total polyphenol content of Faloak stem bark extract were respectively 28.75 mg/gram and 45.25 mg/gram extract. Conclusion: The 70\% ethanol extract of leaves, roots, stems, and stem barks of Faloak showed elastase inhibitory activity, and stem barks extract showed the strongest activity. Faloak stem barks extract can be considered as potential to be developed as active compound in anti-aging product, both in cosmetic and pharmaceutical dosage forms.

}, keywords = {Elastase inhibitory, Flavonoids, Polyphenol, Sterculia quadrifida}, doi = {10.5530/pj.2021.13.97}, author = {Sofiah Yunita Radjah and Kunia Sari Setio Putri and Berna Elya} } @article {350, title = {Cytotoxic Activity of Antioxidant-Riched Dendrobium longicornu}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {May 2017}, pages = {499-503}, type = {Original Article}, chapter = {499}, abstract = {

Context: Dendrobium longicornu is a traditional medicinal plant widely used in Asia. It has many bioactive compounds like bibenzyl, phenanthrenes, phenolic compounds. There has been little research in the cytotoxic and antioxidant effects of D. longicornu. Aims: The aim of this study was to investigate the cytotoxic and antioxidant activities of this plant. Settings and Design: Antioxidant and cytotoxic activity of Dendrobium longicornu extracts. Methods and Material: The plant extracts were prepared by soxhlet\’s extractor in organic solvents, acetone and ethanol. The total polyphenol content (TPC) in the extracts was determined spectrophotometrically by the Folin-Ciocalteu method and the total flavonoid content (TFC) by aluminium chloride method. The antioxidant activity was determined using DPPH (2,2-diphenyl-1-picrylhydrazyl) method. The cytotoxic activity was evaluated against human brain tumor cells (U251) and cervical cancer cells (HeLa) using MTT assay. Statistical analysis used: Regression analysis was done for calculation of IC50. Duncan multiple range test and Dunnett test were done to compare the data. Results: The Dendrobium longicornu acetonic extract (DLA) showed significantly highest TPC and TFC than Dendrobium longicornu ethanolic extract (DLE). The antioxidant activity was also significantly higher in DLA followed by DLE. Highest cytotoxicity (i.e., lowest IC50 value) was found for the DLA on U251 cells and DLE on HeLa cells. Conclusions: This result concluded that D. longicornu is a potential source of antioxidant and cytotoxic agents.

}, keywords = {Dendrobium longicornu, DPPH, Flavonoid, MTT, Polyphenol}, doi = {10.5530/pj.2017.4.81}, url = {/files/PJ-9-4/10.5530pj.2017.4.81}, author = {Mukti R Paudel and Mukesh B Chand and Basant Pant and Bijaya Pant} } @article {420, title = {In vitro Study of Xanthine Oxidase Inhibitory of Gambir (Uncaria gambir) Hunter Roxb Extracts}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {September 2017}, pages = {862-865}, type = {Original Article}, chapter = {862}, abstract = {

Introduction: Hyperuricemia was a metabolic disorder characterized by high levels of uric acid due to the action of the enzyme xanthine oxidase (XO). Some natural substances with antioxidant activity proved capable of inhibiting the activity of the enzyme XO. Pharmacological benefit of polyphenol compounds had been proved. Gambir (Uncaria gambir) Hunter Roxb, a native plant, had been proved antioxidant activity, so that it had potential to be developed as an inhibitor of the XO. This study aimed to evaluate the activity of Gambir as XO inhibitor. Methods: These extracts of Gambir were preparation from Gambir and Gambir leaf using ethanol 50\% and ethanol 96\%, respectively. The polyphenol content and Xanthine oxidase inhibitory activity was evaluated by spectrophotometry, meanwhile analysis of (+)catechin was determined by high pressure liquid chromatography (HPLC). Results: Screening XO inhibitory activity in vitro showed that ethanolic 96\% extract of Gambir leaf showed the highest activity, i.e. 50\% relative to standard allopurinol at the final concentration of 100 ppm. Conclusion: There was no positive correlation between XO inhibitory activity and polyphenol or (+)catechin content.

}, keywords = {(+) Catechin., Gambir (Uncaria gambir) Hunter Roxb, Inhibitory, Polyphenol, Xanthine Oxidase}, doi = {10.5530/pj.2017.6.135}, url = {http://fulltxt.org/article/188}, author = {Eriawan Rismana and Sri Ningsih and Fachry Fachrudin} } @article {246, title = {Lipid Peroxidation Inhibitory Activity In vitro of Mezzetia parviflora Becc. Wood Bark Polar extract}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {171-175}, type = {Original Article}, chapter = {171}, abstract = {

Introduction: The wood bark of Mezzetia parviflora Becc, has long served as one of the most important traditional herbal medicine sources in Buton Regency, Southeast Sulawesi. M. parviflora extracts were rich in polyphenols. This study was aimed to explore the lipid peroxidation inhibitory activity of polar extract of M. parviflora. Methods: The polar extract is the result of ethanol extract partition solved in acetone. The extract will keep polar components which are insoluble in acetone. Assayed methods applied are \ß-carotene bleaching inhibition, thiobarbituric acid reactive substance (TBARS) measurement, and continuous monitoring of conjugated dienes formation in LDL. Results: M. parviflora extract inhibit \ß-carotene/ linoleic acid oxidation, showed by IC50 value of 15.83 g/ml in 30th minute; but the potency will be reduced to IC50 value of 111.19 g/ml and 225.07 g/ml after the 60th and 120th minute of incubation. M. parviflora extract inhibit MDA formation as for linoleic acid peroxidation product until the third day; at 20, 40, 60, 80 and 100 g/ml inhibit MDA formation as many as 29.16 \± 2.41\%, 4.24\% \± 43.27, 54.08 \± 2.87\%, 59.88 \± 1.90\%, and 69.75 \± 2.32\%, respectively. M. parviflora extract at 50 g/ml can inhibit LDL-oxidation induced by CuSO4, performed by LDL-oxidation lag-time elongation until 70 minutes, similar ability was performed by epigallocathecin gallate at 5 g/ml. Conclusions: M. parviflora extract expressed relatively strong protection against lipid and LDL oxidation which can serve as the scientific basis of its development as a remedy for various diseases caused by lipid peroxidation.

}, keywords = {Conjugated diene, Low-density lipoprotein, Malondilaldehyde, Mezzetia parviflora Becc, Polyphenol}, doi = {10.5530/pj.2017.2.28}, url = {http://phcogj.com/fulltext/295}, author = {Mufidah Murdifin and Ermina Pakki and Gemini Alam and Marianti A. Manggau and Lukman Muslimin and M. Rusdi and Elly Wahyudin} }