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Food Science and Biotechnology
→ Food Science and Biotechnology 2020 ; 29(1): 17-25
Antioxidant and antibacterial capabilities of phenolic compounds and organic acids from Camellia oleifera cake
Duoduo Zhang1 • Shaoping Nie1 • Mingyong Xie1 • Jielun Hu1
1 State Key Laboratory of Food Science and Technology, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, 235 Nanjing East Road, Nanchang 330047, Jiangxi Province, China
ABSTRACT
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.
KEYWORD
Camellia oleifera cake · Phenolic substance · Organic acid · Antioxidant ability · Antibacterial ability
Food Science and Biotechnology 2020 ; 29(1): 17-25
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