earticle

영어

The aim of this study was to evaluate the antioxidant activities of enzymatic digests from citrus by-products(CBPs) prepared by high speed drying (HSD). HSD needs a short time (60 min) for drying and can be used in a commercialscale. Enzymatic digests were prepared from the CBPs using 6 enzymes such as aminoglucosidase (AMG), celluclast,pectinex, termamyl, ultraflo, and viscozyme. Antioxidant activities of AMG digest from CBPs were evaluated by different invitro models such as 1,1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl, alkyl, H2O2 scavenging, metal chelating, lipid peroxidation,and comet assays, and exhibited strong activities. The antioxidant compounds were detected by an high performance liquidchromatography (HPLC) coupled on-line to an 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS+) scavengingdetection system, and found that hesperidin was the key compound. Therefore, the results obtained in this study suggest thatHSD is an effective method to transform wet CBPs into dried form, and CBPs are potential source of natural antioxidant.