Spectrophotometric determination of some antioxidants with potassium permanganate and metol |
| |
Authors: | UViplava Prasad KEkambareswara Rao CSPrakasa Sastry |
| |
Affiliation: | Food and Drug Laboratories, School of Chemistry, Andhra University, Waltair—530 003, India |
| |
Abstract: | New spectrophotometric methods for the assay of some antioxidants have been developed using potassium permanganate and metol (p-N-methyl amino phenol). Metol is oxidised at pH 3.0 with potassium permanganate and coupled with antioxidants to give λmax at 560 nm for propyl gallate and gallic acid and 510nm for butylated hydroxy anisole. The method is simple, sensitive, reproducible and accurate within ±1% and applicable to the assay of antioxidants (gallic acid, propyl gallate and butylated hydroxy anisole) in oils and fats. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|