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논문 기본 정보

자료유형
학술저널
저자정보
Ju-Hee Kim (Daegu Catholic University) Jeong-Eun Seo (Daegu Catholic University) Sang-Won Choi (Daegu Catholic University)
저널정보
한국식품영양과학회 Preventive Nutrition and Food Science Preventive Nutrition and Food Science Vol.27 No.3
발행연도
2022.9
수록면
299 - 308 (10page)

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초록· 키워드

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Three new phenolic compounds including pinosylvin 3-methoxy-5-O-β-D-glucoside (PMG), taxiresinol 4’-O-α-L-rhamnoside (TRR), and lariciresinol 4’-O-α-L-rhamnoside (LRR) were first isolated and identified from red pine (Pinus densiflora Sieb. et Zucc.) twigs, together with four known compounds, such as (+)-catechin (CC), dihydromyricetin (DHM), dihydroquercetin 3-O-β-D-glucoside (DHQG), and dihydroquercetin (DHQ). Additionally, the concentrations of seven phenolic compounds in pine twigs were measured by high-performance liquid chromatography based on cultivars, harvest seasons, and growing environments. Red and black pine twigs contain 379.33 and 308.83 mg/100 g of PMG as the predominant phenolics, respectively, and their contents were significantly higher in spring than in autumn. Red pine twigs contain higher amounts of three dihydroflavonols (DHM: 87.82, DHQG: 38.47, and DHQ: 68.07 mg/100 g) and two lignans (LRR: 15.63, TRR: 30.72 mg/100 g) than black pine twigs, except for higher (+)-CC level (21.88 mg/100 g) in black pine twigs. Two pine twigs had much higher flavonoid and lignan levels in the autumn than they had in the spring. Two pine twigs harvested in several different areas do not significantly differ in their phenolic compositions and contents. These results suggest that red pine twigs possessing phytochemical phenolics may be useful as potential sources for promoting human health.

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ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
REFERENCES

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