→ 한국식품과학회지2018 ; 50(01): 98-104
Accumulation of oxyresveratrol in Ramulus mori upon postharvest storage
숙성에 의한 뽕나무 상지 내 옥시레스베라트롤 축적
Jun-Ho Kim, Ki-Hyun Kim, Min-Young Lee1, Young-Hee Lim2, and Jeong-Keun Kim1,*
1Department of Chemical Engineering & Biotechnology, Korea Polytechnic University 2Department of Public Health Science (BK21 PLUS Program), Graduate School, Korea university
해양바이오에너지 생산기술개발연구센터, 1한국산업기술대학교 생명화학공학과, 2고려대학교 보건과학과(BK21 PLUS Program)
Oxyresveratrol (trans-2, 3', 4, 5'-tetrahydroxystilbene), found in many plants including grape, peanut and mulberry, is a phytoalexin, an antimicrobial and antioxidative substance that rapidly accumulates in areas infected by the pathogen. We examined the accumulation of oxyresveratrol in nine Morus alba L. cultivars with respect to storage time and temperature postharvest and infection with GRAS microorganisms. Among the nine cultivars, the Suwon cultivar showed the highest oxyresveratrol content (9.6-fold increase) postharvest, when stored at 30°C for 7 days. The optimal temperature and postharvest storage time for oxyresveratrol accumulation was 30°C and 6 days. When Ramulus mori was infected with five microorganisms, the accumulation of oxyresveratrol increased over 4-fold in response to B. coagulans infection. These results suggest that oxyresveratrol accumulation is influenced by storage temperature, storage time, Ramulus mori cultivars, and microbial attack. Therefore, postharvest storage for an appropriate time period at a suitable temperature might be a useful way to industrially produce Ramulus mori cultivars with high oxyresveratrol content.
oxyresveratrol, stilbenoid, Morus alba L., Ramulus mori, postharvest
한국식품과학회지 2018 Feb; 50(01): 98 - 104