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author:

徐凡 (徐凡.) [1] | 林娟 (林娟.) [2] | 叶秀云 (叶秀云.) [3] | 朱凡 (朱凡.) [4] | 许鑫琦 (许鑫琦.) [5]

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Abstract:

以褐藻酸钠作为褐藻胶裂解酶产生菌初筛培养基唯-碳源,从鲍鱼养殖水样中分离获得-株产褐藻胶裂解酶的微生物,形态学和分子生物学16SrDNA鉴定结果显示,该菌株为交替假单胞菌sp.BYS-2.对该菌株进行产酶条件研究,获得最适产酶配方为:褐藻酸钠1g·L^-1,葡萄糖0.5g·L^-1,酵母膏10g·L^-1,黄豆饼粉3g·L^-1,(NH4)2HPO43g·L^-1,初始培养基pH8.0;最佳产酶条件为:接种量2%(体积分数),装液量50mL/250rnL,发酵温度20尤,摇床转速200r·min^-1,在此条件下发酵24h酶活力可达5.29U·mL^-1,比优化前(1.57U·mL^-1)提髙2.37倍.

Keyword:

交替假单胞菌属 产酶条件优化 筛选 褐藻胶裂解酶

Community:

  • [ 1 ] 福州大学生物科学与工程学院,福建省海洋酶工程重点实验室,福建福州350116

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Source :

福州大学学报:自然科学版

ISSN: 1000-2243

CN: 35-1337/N

Year: 2017

Issue: 3

Volume: 45

Page: 446-453

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 8

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