International Journal of Industrial Entomology and Biomaterials

  • 제41권2호
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  • Pages.19-27
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  • 2020
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  • 3022-7542(pISSN)
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  • 2586-4785(eISSN)
한국잠사학회 (Korean Society of Sericultural Science)
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A comparative study on the phytochemical and anti-oxidant activity differences in HongJam prepared with various silkworm varieties

  • Nguyen, Phuong (Ilsong institute of life sciences, Hallym University) ;
  • Kim, Seong-Wan (Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Jo, You-Young (Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Beteta, Sofia Pallais (Ilsong institute of life sciences, Hallym University) ;
  • Kang, Sang Kook (Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Kim, Soo Bae (Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Kim, NamSook (Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Kweon, Hae Yong (Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Kim, Kee-Young (Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Koh, Young Ho (Ilsong institute of life sciences, Hallym University)
  • 투고 : 2020.09.27
  • 심사 : 2020.10.29
  • 발행 : 2020.12.31
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초록

The aim of this study was to elucidate the difference in the amount of phytochemicals and anti-oxidant activities of the freeze-dried 5th instar 3rd day silkworm powder (FDSP) and 7 HongJams (HJs). Three primary colors of light of 8 silkworm powders revealed why each sample had unique color. The visual and absorption spectrum analyses of 80% methanol (MeOH) extracts of 8 silkworm powders revealed that white jade (WJ)-FDSP extracts showing strong forest-green colors had different absorption spectrum from 7 HJs. Among 7 HJs, the absorption spectrum of light green silkworm (LGS)-HJ extract was different from those of other HJ extracts. The amounts of total flavonoids and phenolic compounds of WJ-FDSP were 423.0±9.21% and 252.3±12.86%, respectively, more than those of WJ-HJ. Among 7 HJs, the amounts of total flavonoids and phenolic compounds in LGS-and red silkorm (RS)-HJ extracts were significantly more than those of WJ-HJ extract. Consistent with the amounts of phytochemicals, radical scavenging activity and reducing ability of WJ-FDSP extract were significantly higher that other HJ extracts. Among 7 silkworm powder extracts, LGS-HJ extract showed significantly higher radical scavenging activity and reducing ability than those of WJ-HJ extract. But, RS-HJ extract only showed significantly higher radical scavenging activity than that of WJ-HJ extract. Taken together, the amounts of phytochemicals in 8 silkworm powders contributed on their colors and anti-oxidant activities.

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참고문헌

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