@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 {193, title = {Callus Induction and Elicitation of Total Phenolics in Callus Cell Suspension Culture of Celastrus paniculatus {\textendash} willd, an Endangered Medicinal Plant in India}, journal = {Pharmacognosy Journal}, volume = {8}, year = {2016}, month = {Oct 2016}, pages = {471-475}, type = {Original Article}, chapter = {471}, abstract = {

Celastrus paniculatus - Willd belonging to the family Celastraceae is a vulnerable medicinal plant in India. It has been employed as a stimulant, nervine tonic, rejuvenant, sedative, tranquilizer and diuretic. It is also used in the treatment of leprosy, leucoderma, rheumatism, gout, paralysis and asthma. Because of its high pharmaceutical application, this plant species were over exploited and now considered under threatened species. So the highlight of the present investigation is the induction of callus by using different concentration of various phytohormones such as 2, 4-D (0.5 - 3.0 mg/l) and NAA (0.5 - 2.5 mg/l). In order to ensure the presence of the bioactive compounds preliminary phytochemical screening of the various extracts of callus were performed. Finally elicitation of total phenolics were done in callus cell suspension cultures by using elicitors such as jasmonic acid, salicylic acid and copper sulphate. Among the applied elicitors jasmonic acid showed superiority. To our knowledge, this is the first report of the elicitation of secondary metabolites especially total phenolics from callus cell suspension cultures of Celastrus Paniculatus.

}, keywords = {Bioactive constituents, Callogenesis, Celastrus paniculatus, Elicitors, Total phenolics.}, doi = {10.5530/pj.2016.5.10}, author = {Anusha T S and Joseph M V and Elyas K K} }