Browsing A - Mathematics and Natural Sciences by Author "erwin, erwin"
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Antioxidant Assay Of Dayak Onion (Eleutherine palmifolia) Via DPPH (1,1-Difenil-2-Pikrilhidrazil) And BSLT Test For Its Active Fraction
erwin, erwin (Rasayan Journal, 2019-07)Dayak Onion (Eleutherine palmifolia) is a widely available plant in Kalimantan which has never been optimally analyzed for its significant. The aim of this research was to determine the active fraction of Dayak ... -
GC-MS profiling and DPPH radical scavenging activity of the bark of Tampoi (Baccaurea macrocarpa)
erwin, erwin (2019-12)Background : Tampoi ( Baccaurea macrocarpa) is a tropical rainforest plant that produces edible fruit and is native to Southeast Asia, especially East Kalimantan, Indonesia. Previous research showed that Tampoi potentially ... -
Influence of the addition and storage time of crude extract of tea leaves
erwin, erwin (American Institute of Physic, 2017)The purpose of this study was to determine the effect of the crude extract of tea leaves (Camellia sinensis L.) and storage time on the content of free fatty acid in palm oil. The dried tea leaves were macerated and ...