plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111elSSN : 2287-8815
Development of a High-quality Alginate Production Process Using Saccharinajaponica By-products with Antioxidant Properties
정도영†·이미라1†·최유리2·박시형·안찬현·육태경·구혜민·김현수3*
경상국립대학교 해양식품공학과, 1㈜동원F&B 창원공장 품질보증팀, 2한국식품연구원 기능성플랫폼연구단, 3경상국립대학교 해양식품공학과/
해양산업연구소
Saccharina japonica is a type of brown algae commonly used in Asian countries. Brown algae contain large amounts of alginic acids; evaluating its colorimetric properties is crucial for determining its quality. The ultrasonic-assisted extraction technique (UAT) was performed on S. japonica to extract high-quality alginic acid, followed by activated carbon treatment (UATC) and ethanol treatment (UATE). Chromaticity was evaluated using the Hunter color system to assess the effectiveness of UATE in pigment removal. The extraction yields were 30% for UAT and 23% for UATC and UATE. The polysaccharide content was analyzed as follows: 41.579±0.16 mg% for UAT, 45.459±0.47 mg% for UATC, and 42.174±0.17 mg% for UATE. Antioxidant activity assays were performed to assess 2,2'-azino-bis(3-ethylbenzothiazoline- 6-sulfonic acid), 2,2-diphenyl-1-picrylhydrazyl, and H2O2 scavenging activities; all increased in a concentration-dependent manner. The total polyphenol content was quantified as 2.37±0.12 mg/g for UAT, 0.86±0.18 mg/g for UATC, and 0.09±0.01 mg/g for UATE. These results suggest that pigment removal using ethanol is highly effective for efficacy screening and provides fundamental data useful for application in the food, cosmetic, and pharmaceutical industries.
Saccharina japonica, Brown algae, Alginate, Ultasonic-assisted extraction, Antioxidant