Phytochemicals Screening and Effectiveness of Free Radical Inhibitors of Garlic (Allium sativum L.) Ethanol Extract from Timor Island

Abstract

The purpose of the study was to determine the content of secondary metabolites and the effectiveness of garlic (Allium sativum L.) ethanol extract from Timor island which has the potential to inhibit free radicals. The method used for testing secondary metabolites is phytochemical screening using color reagents. The effectiveness of free radical inhibitors from the ethanol extract of garlic (Allium sativum L.) from Timor island was carried out in two steps are: 1.) Determination of DPPH wavelength (λ) maximum and 2.) Measurement of antioxidant activity using the DPPH method. The results showed the ethanol extract of garlic (Allium sativum L.) from Timor Island contained secondary metabolites of flavonoids, phenols, and terpenoids. The ethanol extract of garlic (Allium sativum L.) from Timor Island also has strongest effectiveness in inhibiting free radicals, with the acquisition of IC50 values <50 ppm which is equal to 9,729 ppm

Characterization of Cosmos (Cosmos spp.) Accession from The Special Region of Yogyakarta and Riau Origin

“…The darker stem colour tends to have stronger anthocyanin content (Jatsiyah, 2015). Anthocyanin can play an important role in protecting plants from various abiotic and biotic stresses (Priska et al, 2018). In addition to genetics, several factors that in luence anthocyanin content in plants are sunlight (intensity), air temperature, and pH (Akhda, 2009, cit.…”

“…The content of anthocyanin has human health bene its as bioactive compounds that can prevent various chronic diseases. In the food sector, anthocyanin is used as an additive in food and beverages (Priska et al, 2018). 2).…”