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KMID : 0613820180280070827
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Journal of Life Science
2018 Volume.28 No. 7 p.827 ~ p.834
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Physicochemical Properties and Biological Activities of Protaetia brevitarsis seulensis Larvae Fermented by Several Kinds of Micro-organisms
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Sim So-Yeon
Ahn Hee-Young
Seo Kwon-Il
Cho Young-Su
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Abstract
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In this study, the biological activities of aqueous, ethanol, and methanol extracts of larvae of the edible insect Protaetia brevitarsis seulensis, fermented using several kinds of microorganisms, were tested in in vitro experimental models. Six effective microorganisms were used for fermentation, namely Lactobacillus plantarum JBMI F3, Lactobacillus plantarum JBMI F5, Lactobacillus gasseri Ba9, Aspergillus kawachii KCCM 32819, Saccharomyces cerevisiae KACC 93023, and Bacillus subtilis KACC 91157. Biological activities (α,α’-diphenyl-β-picrylhydrazyl [DPPH] free radical scavenging activity, reducing power, and fibrinolytic activity), and biochemical properties (phenolic compounds and flavonoids) were examined in aqueous, ethanol, and methanol extracts from P. brevitarsis seulensis powder and fermented P. brevitarsis seulensis powder. The total phenolic compounds and flavonoid contents were highest in the aqueous extract of B. subtilis-fermented P. brevitarsis seulensis powder. DPPH radical scavenging activity and reducing power were stronger in the fermented group than the nonfermented group. Fibrinolytic activity were highest in the extract from B. subtilis-fermented P. brevitarsis seulensis powder. The α-amylase activity in starch was higher in the fermented group than the nonfermented group, but there was no significant difference. These results provide basic data to understand the biological activities of bioactive materials derived from fermented P. brevitarsis seulensis larvae for the development of functional foods.
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KEYWORD
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Antioxidative activity, fermentation, edible insect, larvae, Protaetia brevitarsis seulensis
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