Browsing Reports by Author "Pratiwi, Djihan R."
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An anthraquinone derivative from Coptospella tomentosa (Blume) root (Merung)
erwin, Erwin; Dari, Anita K.; Pratiwi, Djihan R.; Bohari, Bohari; Rahmadi, Anton (Foundation for Enviromental Protection and Research, 2020-09)Coptosapelta tomentosa (Blume) (Merung) is a type of tropical plants traditionally being used as amedicine by the Dayak tribes in Indonesia. This experiment aims to identify compound in the class of anthraquinone derivative ... -
Antioxidant Assay with Scavenging DPPH Radical of Artocarpus anisophyllus Miq Stem bark extracts and Chemical compositions and Toxicity Evaluation for the Most Active Fraction
Erwin, Erwin; Pratiwi, Djihan R.; Saputra, Iwan; Alimuddin, Alimuddin (A and V Publication, 2021-05-01)The purpose of this study was to determine the antioxidant activity of crude extract and their fractions, the content of secondary metabolite types of crude extract, and the chemical content and toxicity of the most active ... -
Toxicity test, antioxidant activity test and GC-MS profile of the active fraction of Coptosapelta tomentosa (Blume) root (Merung)
Bohari, Bohari; Dari, Anita K.; Pratiwi, Djihan R.; Erwin, Erwin; Rahmadi, Anton (Foundation for Enviromental Protection and Research, 2019-12)Merung (Coptosapelta tomentosa (Blume)) is one of the plants of the genus Coptosapelta, commonly found in the forests of orneo. People in Kalimantan, especially in East Kalimantan and South Kalimantan, use the extract ...