지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.12
- 수록면
- 414 - 423 (10page)
- DOI
- 10.7783/KJMCS.2023.31.6.414
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초록· 키워드
오류제보하기
Background: The main compounds in the Humulus japonicus extract prepared by drying for 12 h under hot air at 50℃ (50-12H), or 7 d, at room temperature at 25℃ (25-7D) were analyzed.
Methods and Results: Three main compound peaks were identified in liquid chromatograph analysis using an ultraviolet detector. Additionally, mass spectrometer analysis was performed, and each peak was confirmed to either belong to luteolin 7-O-glucoside, luteolin 4’-O-glucoside, or luteolin through standard analysis. The 50-12H extract showed high contents of luteolin 7-O-glucoside and luteolin 4’-O-glucoside. Meanwhile, in the 25-7D extract, the luteolin 7-O-glucoside and luteolin 4’-O-glucoside contents reduced and the luteolin content increased, this is because luteolin 7-O-glucoside and luteolin 4’-O-glucoside decomposed into luteolin and glucose by the action of hydrolytic enzymes. In other words, a relatively slow drying speed provides enough time for hydrolytic enzyme to be activiated in H. japonicus, which increases the luteolin content.
Conclusions: Room temperature drying is suitable for increasing the luteolin content in H. japonicus extract, and a fast heat drying method is suitable for increasing the luteolin glycoside content.
Methods and Results: Three main compound peaks were identified in liquid chromatograph analysis using an ultraviolet detector. Additionally, mass spectrometer analysis was performed, and each peak was confirmed to either belong to luteolin 7-O-glucoside, luteolin 4’-O-glucoside, or luteolin through standard analysis. The 50-12H extract showed high contents of luteolin 7-O-glucoside and luteolin 4’-O-glucoside. Meanwhile, in the 25-7D extract, the luteolin 7-O-glucoside and luteolin 4’-O-glucoside contents reduced and the luteolin content increased, this is because luteolin 7-O-glucoside and luteolin 4’-O-glucoside decomposed into luteolin and glucose by the action of hydrolytic enzymes. In other words, a relatively slow drying speed provides enough time for hydrolytic enzyme to be activiated in H. japonicus, which increases the luteolin content.
Conclusions: Room temperature drying is suitable for increasing the luteolin content in H. japonicus extract, and a fast heat drying method is suitable for increasing the luteolin glycoside content.
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ABSTRACT
서언
재료 및 방법
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REFERENCES
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