Standarisasi Vitamin C pada Buah Bengkuang (Pachyrhizus Erosus) secara Spektrofotometri Uv-vis

Abstract

Have been conducted by a obstetrical research of vitamin C at juicy tuber by spectrophotometry UV – Vis. The research aim to determine and compare the content of vitamin C from juicy tuber. Firstly fruit of juicy tuberare cleared by their seed then it weighed after that it enhanced by oxilate acid 0.4% and than it blended and filtered. Filtrat obtained to qualitative analyze by using the react specific and standarization of vitamin C using the spectrophotometry UV – Visible at wave legth 516 nm obtained rate of mean vitamin C that is juicy tuber yaitu 91.97 mg/100g