Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal JURNAL KIMIA SAINS DAN APLIKASI
Elisabet Elisabet
Universitas Andalas Padang, Sumatera Barat
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Comparative Test of Color Stability between Betalain Pigments of Red Dragon Fruits and Anthocyanin Pigments from Tamarillo Fruit at Various pH Yelfira Sari; Adlis Santoni; Elisabet Elisabet
Jurnal Kimia Sains dan Aplikasi Vol 21, No 3 (2018): Volume 21 Issue 3 Year 2018
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2228.249 KB) | DOI: 10.14710/jksa.21.3.107-112

Abstract

Betalains and anthocyanins are classes of natural and water soluble pigments. Now days, these pigments have been developed as a replacement colouring agents. One of betalain resource is dragon fruit and anthocyanin resource is tamarillo. These pigments are relative unstable in some condition, one of them is pH. This research aim is to determine stability of betalain and anthocyanin pigments by pH parameter. These pigments can be isolated by macerated methods, technically processed by chopping the fruit and than soaking in ethanol for ± 24 h. These extracts were condensed by rotary evaporator. These extracts were analysed by ultraviolet-visible spectrophotometer at wavelength (λ) 200-800 nm. The absorption spectrum showed two major absorption peaks at 269 nm and 536 nm for betalain and 531 nm for anthocyanins. The result showed the optimal pH for betalain stability was at pH 5 and pH 3 for anthocyanin
Co-Authors Adlis Santoni Yelfira Sari