Utilization of Red Onion Skin Waste as Natural Dyes

Rudi Firyanto, Soebiyono, Dian Anung Putri

2018

Abstract

Red onion skin waste can be used as food coloring. Red onion skin is one source of brownish orange color derived from anthocyanin compounds and is used as natural dyes for traditional foods. The purpose of this study was to determine the most influential variables of reaction time, material size, and ratio weight material to the volume solvent in red onion skin extraction. The research method used is an experimental design method, where this method means a set of differences designed to obtain evidence of a hypothesis data. This research was carried out at a temperature of 80oC and using 80% ethanol solvent. The results showed that the most influential was the ratio of weight material to volume solvent. The optimum results were obtained at a ratio of 1 gr: 14 ml with an extraction time of 2 hours and a size of 60-80 mesh

Paper Citation

in Harvard Style

Firyanto R., Soebiyono. and Anung Putri D. (2018). Utilization of Red Onion Skin Waste as Natural Dyes.In Proceedings of the 7th Engineering International Conference on Education, Concept and Application on Green Technology - Volume 1: EIC, ISBN 978-989-758-411-4, pages 447-450. DOI: 10.5220/0009012704470450

in Bibtex Style

@conference{eic18,
author={Rudi Firyanto and Soebiyono and Dian Anung Putri},
title={Utilization of Red Onion Skin Waste as Natural Dyes},
booktitle={Proceedings of the 7th Engineering International Conference on Education, Concept and Application on Green Technology - Volume 1: EIC,},
year={2018},
pages={447-450},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0009012704470450},
isbn={978-989-758-411-4},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th Engineering International Conference on Education, Concept and Application on Green Technology - Volume 1: EIC,
TI - Utilization of Red Onion Skin Waste as Natural Dyes
SN - 978-989-758-411-4
AU - Firyanto R.
AU - Soebiyono.
AU - Anung Putri D.
PY - 2018
SP - 447
EP - 450
DO - 10.5220/0009012704470450