食药用大型真菌抗氧化活性菌株的筛选及其培养条件优化
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(滁州学院生物与食品工程学院,安徽 滁州 239000)

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柴新义(1978-),男,滁州学院副教授,博士。E-mail: xinyianhui@163.com

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安徽省教育厅高校自然科学研究重点项目(编号:KJ2015A239);滁州学院生物工程科技创新团队项目(编号:CZTD201104);滁州学院科研启动基金项目(编号:2014qd047)


Screening of strain with antioxidation activity from wild macrofungi and
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(School of Biology and Food Engineering, Chuzhou University, Chuzhou, Anhui 239000, China)

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    摘要:

    对10种野生食药用大型真菌进行具有抗氧化活性菌株的筛选,并对高效抗氧化活性菌株进行发酵培养条件的优化,为将其投入工业化生产提供依据。以发酵粗提液的DPPH自由基清除率为指标,采用单因素和正交试验法优化大型真菌液体发酵的培养条件,并验证。结果表明,在供试的10种真菌中,有4株具有良好的抗氧化活性,占40%,其中以木耳Auricuiaria auricular CZSWXY0012的抗氧化活性为最高。最优的发酵培养条件为:葡萄糖25 g/L,酵母膏2 g/L,MgSO4 0.2 g/L,CuSO4 6 mg/L,K2HPO4 3.2 g/L,pH 6.0,温度27 ℃,装液量100 mL/250 mL,发酵培养8 d。野生食药用大型真菌为天然抗氧化剂的开发和利用提供了宝贵的资源。

    Abstract:

    The objectives of the study were to screen the strain with a good antioxidation activity from 10 species of wild macrofungi and optimize the optimal conditions for antioxidant substance production. These results can provide some references for the breeding of Auricuiaria auricular and industrialization of its production. As material with 10 strains of wild fungi from the Langyashan in Anhui province, the strains with antioxidant substance producing were obtained by DPPH free radical scavenging rate of the broth. Shake flask culture was then used to get the optimum culture conditions based on the single factor and orthogonal experiments, which is finally examined. The results showed that there were four strains with producing antioxidation activity in the samples, accounting for 40%. The strain of Auricuiaria auricular has especially the higher capacity of antioxidaton activity. The formula of appropriated culture conditions were as follows: glucose 25 g/L, yeast extract 2 g/L, MgSO4 0.2 g/L, CuSO4 6 mg/L, K2HPO4 3.2 g/L, pH 6.0, 27 ℃, culture volume 100 mL/250 mL, and cultivation 8 d. The metabolites of the Auricuiaria auricular have good antioxidant activity, providing a new source of natural antioxidants development.

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柴新义,于士军,张微微,等.食药用大型真菌抗氧化活性菌株的筛选及其培养条件优化[J].食品与机械,2016,32(1):125-129.
CHAIXinyi, YUShijun, ZHANGWeiwei, et al. Screening of strain with antioxidation activity from wild macrofungi and[J]. Food & Machinery,2016,32(1):125-129.

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  • 在线发布日期: 2023-02-26
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