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中国精品科技期刊2020
金鹏, 党爱丽, 雷湘南, Suren Singh, 刘晓光, 王正祥, 路福平. 产脂肪酶极端丝状真菌的筛选及其酶学特性[J]. 食品工业科技, 2016, (18): 213-217. DOI: 10.13386/j.issn1002-0306.2016.18.032
引用本文: 金鹏, 党爱丽, 雷湘南, Suren Singh, 刘晓光, 王正祥, 路福平. 产脂肪酶极端丝状真菌的筛选及其酶学特性[J]. 食品工业科技, 2016, (18): 213-217. DOI: 10.13386/j.issn1002-0306.2016.18.032
JIN Peng, DANG Ai-li, LEI Xiang-nan, Suren Singh, LIU Xiao-guang, WANG Zheng-xiang, LU Fu-ping. Isolation and preliminary characterization of lipases from fungi in extreme environments[J]. Science and Technology of Food Industry, 2016, (18): 213-217. DOI: 10.13386/j.issn1002-0306.2016.18.032
Citation: JIN Peng, DANG Ai-li, LEI Xiang-nan, Suren Singh, LIU Xiao-guang, WANG Zheng-xiang, LU Fu-ping. Isolation and preliminary characterization of lipases from fungi in extreme environments[J]. Science and Technology of Food Industry, 2016, (18): 213-217. DOI: 10.13386/j.issn1002-0306.2016.18.032

产脂肪酶极端丝状真菌的筛选及其酶学特性

Isolation and preliminary characterization of lipases from fungi in extreme environments

  • 摘要: 从南非德班市及其周边地区采集的76个土样中筛选得到99株嗜碱丝状真菌和51株嗜热丝状真菌,利用橄榄油乳化法以及对硝基苯酚法筛选得到三株具有底物专一性的菌株F4-173、F4-262、F8-67,经ITS分子生物学鉴定方法分别鉴定为Aspergillus fumigatus、Penicillium verrucosum、Penicillium chrysogenum。其中,Aspergillus fumigates F4-173可专一性分解菜籽油,其最适作用条件40℃、p H8.0,Penicillium verrucosum F4-262可专一性分解对硝基苯酚月桂酸酯,其最适作用条件为40℃、p H8.0,Penicillium chrysogenum F8-67可专一性分解大豆油,其酶液最适作用条件为50℃、p H6.5。 

     

    Abstract: From 76 soil samples,collected in South Africa,99 basophilic filamentous fungi strains and 51 thermophilic filamentous fungi strains were screened.Two measuring methods,including olive oil emulsification and p- NPP,had been used to test the activity of lipase and three filamentous fungi strains had been selected for hydrolyzing special substrate. They were F4- 173,F4- 262 and F8- 67,identified as Aspergillus fumigatus,Penicillium verrucosum,Penicillium chrysogenum by the method of ITS,respectively.The result showed that the strain F4-173 could hydrolyze canola oil and its optimal temperature and p H were 40 ℃ and 8.0,the strain F4- 262 could hydrolyze p- nrophenyl laurate and the optimal temperature and p H of the enzyme were 40 ℃ and 8.0,the strain F8-67 could only hydrolyze soybean oil and its optimal temperature and p H value for lipase activity were 50 ℃ and6.5 respectively.

     

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