The correlation of the total phenolic and flavonoid content on its antioxidant and antimicrobial activity of bamboo leaf extract

The black bamboo leaves that have been widely used by the community for a long time are thought to have bioactive compounds. To find out more, it is necessary to evaluate the levels of phenolic compounds and flavonoids which are reported to function as antioxidants and antimicrobials. In addition, antioxidant and antimicrobial activity tests also need to be carried out directly on black bamboo extracts from Indonesia. This study aims to evaluate the phenolic and flavonoid levels of a black bamboo leaf extract from Indonesia. Based on the research results, the total phenol content of the ethanol extract of bamboo leaves (Bambosa sp.) was 157.426 mg gallic acid extract (GAE)/g and the total flavonoid content was 19.406 mg equivalent to quercetin extract (QE)/g. The antioxidant activity using the DPPH method obtained IC50 of ethanol extract of bamboo leaves (Bambosa sp.) of 46.8672 μg/mL, and an IC50 BHT value of 9.5454 μg/mL. Based on these results, bamboo leaves (Bambosa sp.) have the potential to be developed as antioxidants and antimicrobials. © 2021 Trans Tech Publications Ltd, Switzerland.