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논문 기본 정보

자료유형
학술저널
저자정보
Ji-Sang Kim (Kyungnam University)
저널정보
한국식품영양과학회 Preventive Nutrition and Food Science Preventive Nutrition and Food Science Vol.25 No.4
발행연도
2020.12
수록면
449 - 456 (8page)
DOI
10.3746/pnf.2020.25.4.449

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초록· 키워드

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The objective of this study was to investigate characterization of inclusion complexes of flavonoids with hydroxypropyl-β-cyclodextrin (HP-β-CD). The inclusion complexes of flavonoids with HP-β-CD was prepared by the freezedrying method and its characterization was investigated by different analytical techniques including ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry, and X-ray diffractometry. The catechin/HP-β-CD complex exhibited the highest encapsulation efficiency (83.37%), followed by epicatechin/HP-β-CD (81.51%), morin hydrate/HP-β-CD (81.38%), and quercetin/HP-β-CD (81.16%). The inclusion complexes of HP-β-CD showed a decrease in the absorption of flavonoids with a small shift (≈2 ㎚) of the λ<SUB>max</SUB>, while similar to the characteristic absorption peak of flavonoids. However, the FT-IR spectra of the flavonoid/HP-β-CD inclusion complexes did not display any features that were like the pure flavonoids, although the spectra were very similar to that of HP-β-CD. The melting point of flavonoids disappeared, and the thermal properties of HP-β-CD were altered following formation of the inclusion complex between flavonoids and HP-β-CD, resulting in a shift in the melting peak.

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ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
REFERENCES

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