Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (11): 2145-2154.DOI: 10.3969/j.issn.1004-1524.2021.11.17

• Food Science • Previous Articles     Next Articles

Optimization of ultrasonic extraction technology of Shisandra lignans and its anti-oxidant and anti-fungi potentials

LI Qisi1,2(), WANG Yaling1,2,*(), DENG Yuhua1,2, LIAO Jianmeng1,2, YE Lin1,2, WU Lili1,2, ZHENG Jiachun1,2, LUO Xingyan1,2, DENG Qi1,2, SUN Lijun1,2   

  1. 1. College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang 524088, China
    2. Zhanjiang Institute for Food & Drug Control, Zhanjiang 524037, China
  • Received:2020-12-24 Online:2021-11-25 Published:2021-11-26
  • Contact: WANG Yaling

Abstract:

To explore the suitable ultrasonic extraction technology of Schisandra lignans and its inhibitory effect against oxidant and dominant fungi in dried aquatic products, a synchronous detection methods for 5 kinds of lignans was established via LC-MS/MS (liquid chromatography-tandem mass spectrometry). On the basis, four single-factor tests, and the central composite response surface test were adopted to optimize the ultrasonic extraction parameters of Schisandra lignans, and the anti-oxidant and anti-fungi activities of Schisandra lignans were analyzed. It was shown that the suitable extraction parameters included ethanol volume fraction of 70%, liquid to material ratio of 12 mL·g -1, extraction times of twice, and ultrasound time of 10 min per time. Under this condition, the extraction amount of lignans was (9.45±0.11) mg·g-1. The total reducing power, and DPPH (1,1-diphenyl-2-picrylhydrazyl), ABTS [2,2'-azinobis-(3-ethylbenzthiazoline-6-sulphonate)] free radical scavenging ability of Schisandra lignans were 2/5, 1/2 and 1/3 of vitamin C (VC), respectively. The minimum inhibitory concentration (MIC) of Schisandra lignans against Aspergillus flavus, Aspergillus niger, Penicillium citrinum, Fusarium oxysporium, Fusarium chlamydosporum was about 1.17 mg·mL -1, and the MIC of Schisandra lignans against Trichoderma harzianum, Penicillium expansum, Fusarium solani was about 2.34 mg·mL -1, which indicated that the extracted Schisandra lignans had strong inhibitory effect against oxidant and dominant fungi in dried aquatic products.

Key words: Schisandra lignans, liquid chromatography-tandem mass spectrometry, ultrasonic extraction, response surface, antioxidation

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