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KMID : 1007520200290010017
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Food Science and Biotechnology
2020 Volume.29 No. 1 p.17 ~ p.25
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Antioxidant and antibacterial capabilities of phenolic compounds and organic acids from Camellia oleifera cake
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Zhang Duoduo
Nie Shaoping
Xie Mingyong
Hu Jielun
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Abstract
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There is growing interest in the antioxidants and antibacterial activity from natural substances. The purpose of the research was to gain and distinguish phenolic substances and organic acids in the Camellia oleifera cake, and to study their antioxidant and antibacterial activities. The extraction and purification of them were achieved by solvent extraction and column separation, respectively. The conclusions displayed that purity of the phenolic substances was 94.1?±?0.5% w/w and that of organic acid was 96.0?±?0.3% w/w; Fifteen phenolic substances were certificated using HPLC?ESI?MS technology; oxalic, citric, acetic, malic, and succinic acids are discovered to be main organic acids. In addition, the phenolic substances and organic acids both have good antioxidant activity and obvious inhibition against six species of bacteria. These conclusions can be useful in the reuse of the waste of Camellia oleifera oil industry in the future.
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KEYWORD
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Camellia oleifera cake, Phenolic substance, Organic acid, Antioxidant ability, Antibacterial ability
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