Premium
ENHANCEMENT OF THE PHYSIOLOGICAL ACTIVITIES OF COOKING DRIP OF HIZIKIA FUSIFORMIS BY ELECTRON‐BEAM IRRADIATION
Author(s) -
CHOI JONGIL,
KIM JAEHUN,
CHUN BYEONG SOO,
AHN DONG HYUN,
KIM GWANG HOON,
LEE JUWOON
Publication year - 2011
Publication title -
journal of food biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 47
eISSN - 1745-4514
pISSN - 0145-8884
DOI - 10.1111/j.1745-4514.2010.00434.x
Subject(s) - irradiation , chemistry , food science , scavenging , polyphenol , food irradiation , antioxidant , biochemistry , physics , nuclear physics
The enhancement of the physiological activities of the cooking drip of Hizikia fusiformis (CDH) by electron‐beam irradiation was investigated to utilize the waste cooking drip obtained from the seaweed industry. On applying electron‐beam irradiation, the dark color of the cooking drip became brighter. The 2,2‐diphenyl‐1‐picrylhydrazyl radical scavenging activity of the CDH extracts was increased by electron‐beam irradiation. This was explained by the increase in the content of polyphenolic compounds in CDH after electron‐beam irradiation. Furthermore, there was significant increase in the tyrosinase‐inhibiting and angiotensin I‐converting enzyme inhibitory activity in the irradiated CDH. These results suggest that the wasted seaweed cooking drip can be successfully used as functional components by the food and cosmetic industries.PRACTICAL APPLICATIONS Hizikia fusiformis is a type of brown seaweed that has been widely consumed as a healthy food. During the drying process of H. fusiformis , large amount of cooking drip is obtained as by‐products. Even though this drip has large amount of proteins, polysaccharides and phenolic compounds, its dark color makes it very difficult to be utilized. In this study, the electron‐beam irradiation was applied to brighten the dark color of H. fusiformis cooking drip and the effect of irradiation on the various biological activities was investigated. A physiological investigation of this cooking drip will enable the seaweed industries to use the by‐products as natural additives and to reduce the cost for the waste disposal. This work also provides information on the effect of electron‐beam irradiation on the seaweed extracts.