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| Preparation and identification of the components of flavonoids from Camellia oleifera fruit shell |
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| DOI： |
| KeyWord:Camellia oleifera fruit shell flavonoids polyphenols component identification ultrasound-assisted ethanol extraction |
| FundProject:湖南神农国油油茶产业科技创新创业团队 |
| Author Name | Affiliation | | WU Suxi1,2， LI Yang1， HAN Xiaomiao1,2, DONG Yihui1,
LI Wanyuan2, PENG Shaofeng3 | （1.College of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114,
China
2.Shennongguo Oil Eco-Agriculture Development Co. , Ltd. , Hengyang 421800, Hunan,
China
3.Hunan Academy of Forestry, Changsha 410114, China) |
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| Abstract: |
| In order to promote the high-value exploitation and utilisation of Camellia oleifera fruit shell and promote the high-quality development of Camellia oleifera industry, the crude flavonoids of Camellia oleifera fruit shell were prepared by ultrasound-assisted ethanol extraction and purified by adsorption using AB-8 macroporous resin. In addition, the structure of the purified flavonoids was characterized by UV spectroscopy and infrared spectroscopy and their components were identified by UPLC-Q-TOF-MS. The results showed that the flavonoids content in the crude flavonoids prepared by ultrasound-assisted ethanol extraction was 32.41%, and the flavonoids content after purification using AB-8 macroporous resin was 70.14%, and the total recovery of flavonoids was 60.12%. The analysis of UV spectroscopy and infrared spectroscopy showed that the purified flavonoids had obvious flavonoids UV characteristic spectra and infrared characteristic spectra, which proved that the main components of the purified product was flavonoids. UPLC-Q-TOF-MS analysis showed that the purified flavonoids had 44 kinds of polyphenols and flavonoids, among which 14 kinds of flavonoids and 30 kinds of polyphenols were identified. The purified flavonoids existed in the form of flavonoid glycosides and were mostly glycosides of kaempferol. The purified flavonoids contained proanthocyanidins, catechins, epicatechins and gallic acid and other antioxidant active ingredients. Based on the composition of flavonoids from Camellia oleifera fruit shell, it is assumed that the purified flavonoids has the potential to be developed into an antidiabetic food as well as a synergistic treatment with anticancer drugs. |
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