Authors:

Ni Putu Eka Leliqia, Yanita Ristanti Purwitadewi, I Made Agus Gelgel Wirasuta

Abstract:

”(+)-Catechin was a potential compound to be isolated and developed into natural antioxidant product, but it was unstable because it was easy to be oxidized and formed quinone metabolite. This became a problem in its development and isolation process. Factors that can influence the oxidation process of (+)-catechin were pH condition and storage time. Therefore, this research was conducted to know pH and storage time influence towards the (+)-catechin stability. Observation was done in two parameters which was the acid-base pH (pH 1,64-10) and the storage time for 8 days. The influence of both the parameters towards (+)-catechin standard stability was observed by the quinone metabolite formation from (+)-catechin oxidation reaction result. (+)-catechin was declared as unstable if quinone metabolite was formed by absorbance measurement in its maximum wavelength, 409nm with spectrophotometry method. The obtained result showed that (+)-catechin standard was stable in pH 1.64-6 for 8 days storage and was unstable in pH 7-10 showed by the formation of quinone metabolite for 2-8 days storage.”

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PDF:

https://jurnal.harianregional.com/ijlfs/full-37111

Published

2015-02-01

How To Cite

LELIQIA, Ni Putu Eka; PURWITADEWI, Yanita Ristanti; WIRASUTA, I Made Agus Gelgel. PENGARUH pH DAN LAMA PENYIMPANAN TERHADAP STABILITAS KIMIA STANDAR (+)-KATEKIN.Indonesian Journal of Legal and Forensic Sciences (IJLFS), [S.l.], v. 5, p. 1-3, feb. 2015. ISSN 2657-0815. Available at: https://jurnal.harianregional.com/ijlfs/id-37111. Date accessed: 28 Aug. 2025. doi:https://doi.org/10.24843/10.24843/IJLFS.2015.v05.i01.p01.

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Issue

Vol 5 (2015): Indonesian Journal of Legal and Forensic Sciences

Section

Articles

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