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http://dx.doi.org/10.7852/jses.2013.51.2.207

Effects of matured silkworm hemolymph on suppressing melanin synthesis  

Mun, Ji-Young (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA)
Lee, Heui-Sam (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA)
Lee, Kwang-Gill (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA)
Kweon, HaeYong (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA)
Jo, You-Young (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA)
Yeo, Joo-Hong (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA)
Publication Information
Journal of Sericultural and Entomological Science / v.51, no.2, 2013 , pp. 207-210 More about this Journal
Abstract
In this study, matured silkworm hemolymph was studied for inhibitory effect on melanin formation, tyrosinase activities. A matured silkworm hemolymph mass purification method was developed and some of suppressing melanin formation effects were investigated, too. As a result, the advanced purification method was higher in yield rate than existing one by 53%. A free radical scavenging activity of hemolymph was higher than sericin on the market($IC_{50}$, $202.9{\pm}33.1$) and lower than vitamin C($0.57{\pm}0.02$) by $6.4{\pm}0.3{\mu}g/m{\ell}$. An inhibitory effect on melanin synthesis was higher in hemolymph compared to Morus bark and arbutin by 9.15% and 11.56%, respectively. An inhibitory effect on tyrosinase activity was higher in hemolymph than Morus bark and lower than arbutin. Effect of hemolymph $45{\mu}g/m{\ell}$ on suppressing of tyrosinase was almost 90%. Thus, these results suggest that hemolymph of matured silkworm may have beneficial properties as a material for cosmetics.
Keywords
Matured silkworm hemolymph; Antioxidant; Melanin synthesis; Tyrosinase activity;
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