KSDF 한국염색가공학회
HOME KOREAN
Aims and ScopeAims and Scope
Editorial BoardEditorial Board
Journal InformationJournal Information
Current IssueCurrent Issue
Aims and ScopePast Issue
SubscriptionSubscription
For AuthorsFor Authors
Online Submission
NDSL
KSCI
KOREA SCIENCE
DBPIA
dibrary
oak
oak
oak
oak
LTWA
Current Issue
V.32,no.4,Dec 2020
https://doi.org/10.5764/TCF.
Journal Textile Coloration and Finishing
Year / Vol.,
Issue, Month
2020 / V.32,no.4,Dec
Title Utilization of Food Waste Extract as an Eco-friendly Biocatalyst for Indigo Reduction
Authors Kunghee Son, Dong Il Yoo1 and Younsook Shin*
Institution/Affiliations Chonnam National University
Pages/Total page pp.193 ~ 198 / 6
Language Korean
Abstract In this study, the validity of extracts from food waste as biocatalyst for indigo reduction was examined. Dried food wastes such as apple peel and corn waste were water-extracted and freeze-dried. The reducing power of extracts for indigo was evaluated by the oxidation-reduction potential(ORP) measurement of reduction bath and color strength(K/S value) of the fabrics dyed in the indigo reduction bath. Total sugar contents of the apple peel and corn waste extracts were 60.56% and 62.36%, respectively. Antioxidant activity was 64.78% for the extract of apple peel and 7.96% for the extract of corn waste. Indigo reduction took place quickly with both extracts, and maximum color strength was obtained up to 15.91 and 12.11 within 1-3 days, respectively. The oxidation-reduction potential of reduction bath was stabilized in the range of 500 ~ -620 mV according to the kinds of food waste and the extract concentration. At higher concentration of the extracts, reduction power was maintained for longer time and stronger color strength was obtained. Compared to sodium dithionite, the reducing power of the studied extracts was lower, but the reduction stability was superior to it. The studied extracts were effective biocatalyst as biodegradable and safe alternatives to sodium dithionite for indigo reduction.
Keywords food wastes extracts, indigo reduction, biocatalyst, oxidation-reduction potential, color strength
Download  
Reference http://koreascience.or.kr/journal/OSGGBT.page?&lang=ko

          list