Hyeun-Jong Bae
Chonnam National University, South Korea
Title: Onion waste recycling to produce the value added by-products
Biography
Biography: Hyeun-Jong Bae
Abstract
Onion wastes (OW) which is produced from industrially processed onions is one of major agriculture waste materials. We evaluated the use of OW to produce a value added by-products such as bio-sugars and quercetin. The carbohydrate content of OW was analyzed and the optimal conversion conditions were evaluated by enzymatic process using varying enzyme mixtures for bio-sugar production and quercetin extraction. The optimized enzymatic bioconversion rate of OW to bio-sugar was over 95% with cellulase, xylanase, peictinase combined mixtures. Quercetin extraction was carried out after enzymatic hydrolysis. The newly developed nano-matrix (terpyridine immobilized silica-coated magnetic nanoparticles-zinc (TSMNP-Zn matrix) was utilized to separate quercetin from OSW extracts. The nano-matrix facilitated easy separation and purification of quercetin
