Preventing Vitamin C Photooxidation in Beverage Model System by Virgin Coconut Oil-Rice Bran Oil Nanoemulsion

Yuli Sari, Sri Raharjo, Umar Santoso, Supriyadi

2020

Abstract

Vitamin C (L-ascorbic acid) is a water-soluble vitamin and frequently added in a beverage. This research aimed to investigate the effect of virgin coconut oil-rice bran oil (VCO-RBO) nanoemulsion on vitamin C photooxidation in beverage model system. The oil phase was VCO: RBO (3:7, v/v), surfactant (Tween 80) to oil ratio was 2.5:1 and distilled water was used as the aqueous phase by emulsion phase inversion method. One and 5% (v/v) of VCO-RBO nanoemulsion were added to a system containing vitamin C (450 and 1800 ppm), erythrosine (0-120 ppm) and citric acid (to adjust pH 2.3 and 3.2) in distilled water. The presence of light and erythrosine can degrade vitamin C in beverage model system at 1 ppm vitamin C/min, effectively. The increase in erythrosine concentration increased the vitamin C degradation in a dose-dependent manner. By using VCO-RBO nanoemulsion (1 and 5% v/v), the degradation of vitamin C in beverage model system can be inhibited. At pH 2.3, the addition of 5% (v/v) of VCO-RBO nanoemulsion in the beverage model system was more effective in preventing vitamin C photooxidation than that at pH 3.2. It suggests that VCO-RBO nanoemulsion can be added in beverage model system to protect the vitamin C photooxidation.

Paper Citation

in Harvard Style

Sari Y., Raharjo S., Santoso U. and Supriyadi. (2020). Preventing Vitamin C Photooxidation in Beverage Model System by Virgin Coconut Oil-Rice Bran Oil Nanoemulsion. In Proceedings of the 6th Food Ingredient Asia Conference - Volume 1: 6th FiAC, ISBN 978-989-758-540-1, pages 113-121. DOI: 10.5220/0010541900003108

in Bibtex Style

@conference{6th fiac20,
author={Yuli Sari and Sri Raharjo and Umar Santoso and Supriyadi},
title={Preventing Vitamin C Photooxidation in Beverage Model System by Virgin Coconut Oil-Rice Bran Oil Nanoemulsion},
booktitle={Proceedings of the 6th Food Ingredient Asia Conference - Volume 1: 6th FiAC,},
year={2020},
pages={113-121},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010541900003108},
isbn={978-989-758-540-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 6th Food Ingredient Asia Conference - Volume 1: 6th FiAC,
TI - Preventing Vitamin C Photooxidation in Beverage Model System by Virgin Coconut Oil-Rice Bran Oil Nanoemulsion
SN - 978-989-758-540-1
AU - Sari Y.
AU - Raharjo S.
AU - Santoso U.
AU - Supriyadi.
PY - 2020
SP - 113
EP - 121
DO - 10.5220/0010541900003108