@article {1845, title = {Potential of Rhinachanthus nasutus (L.) Kurz Leaves Extract as an Antioxidant and Inhibitor of α-Glucosidase Activity}, journal = {Pharmacognosy Journal}, volume = {14}, year = {2022}, month = {August 2022}, pages = {373-378}, type = {Research Article }, chapter = {373}, abstract = {

Aims: The goal of this study is to learn more about the antioxidant and antidiabetic properties of Rhinachantus nasutus (L.) Kurz (RnLK) leaf extract. The Ultrasound-Assisted Extraction (UAE) technique was used to extract the leaf material, and the solvent used was ethanol with a 70\% concentration. The total phenol content (TPC) of the extracted material was determined. The Cupric Ion Reducing Antioxidant Capacity (CUPRAC) method was used to examine antioxidant activity, whereas α-glucosidase activity was used to test antidiabetic action. Results: The ethanol extract of RnLK leaves yielded 8.36\%, with a TPC of 607.1{\textpm}0.2 mg GAE/g sample. The IC50 value for leaf extract antioxidant activity was 19.1{\textpm}0.1 mg/L. Furthermore, the leaf extract inhibits α-glucosidase activity and has an IC50 value of 81.3{\textpm}3 mg/L, making it an antidiabetic. Conclusion: The ethanolic extract of RnLK leaves can be used as an alternative antioxidant and antidiabetic material, according to the findings of this study.

}, keywords = {Anti-diabetic, CUPRAC method, RnLK, UAE, α-glucosidase activity}, doi = {10.5530/pj.2022.14.110}, author = {Candra Irawan and Berna Elya and Muhammad Hanafi and Fadlina Chany Saputri} } @article {1666, title = {Potential of Ethanolic Extract from Ripe Musa balbisiana Colla Fruit Using Ultrasound-Assisted Extraction as An Antioxidant and Anti-Gout}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {November 2021}, pages = {1332-1340}, type = {Original Article}, chapter = {1332}, abstract = {

Plant extracts or their secondary metabolites have functioned as antioxidants in phytotherapy drugs which function as protection against various diseases related to oxidative stress and free radicals. Free radicals play an important role in the initiation and development of various diseases, one of which is uric acid. Hhis study aims to obtain ethanolic extract from the ripe fruit of Musa balbisiana Colla using the UAE method and obtain information about secondary metabolites and their bioactivity as antioxidants and anti-gout. The results showed that antioxidant activity test using the DPPH and FRAP methods gave IC50 values of 150.24 {\textpm} 0.0348 mg/L and 227.80 {\textpm} 0.0986 mg / L, respectively. The total phenolic content value of 625.64 {\textpm} 0.36 mg GAE/g ethanolic extract is thought to have a role in high antioxidant activity. In addition, ethanol extract with a concentration of 50 mg / L has activity in reducing uric acid levels by around 9\%. It can be concluded that the ethanolic extract produced by UAE has potential as a source of anti-oxidants and anti-gout.

}, keywords = {Anti-gout, Antioxidant, Musa balbisiana Colla, Phenolic content, UAE}, doi = {10.5530/pj.2021.13.168}, author = {Candra Irawan and Andita Utami and Erna Styani and Imalia Dwi Putri and Ratna Komala Putri and Avisani Dewanta and Annisa Ramadhanti} }