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Identification,Optimization of Oligotrophic Medium Fermentation Conditons of Chitosanase-producing Marine Strain,and Cheap Medium Research
Author(s): 
Pages: 35-39
Year: Issue:  5
Journal: Food and Fermentation Industries

Keyword:  Penicilliumoxalicum 壳聚糖酶 寡营养海水培养基 廉价培养基;
Abstract: 对筛选出的产壳聚糖酶海洋真菌进行了rDNA-ITS序列分析技术鉴定,确定该菌为Penicillium oxali-cum,这是首次报道该菌属具有产壳聚糖酶的能力。该研究旨在为工业化发酵生产壳聚糖酶提供实验指导。实验在已确定的寡营养培养基的基础上,探讨适宜碳源、氮源、耐盐性、耐酸性、摇床转速等发酵因素对产壳聚糖酶的影响,并探索不同种类的廉价培养基发酵产酶。结果显示黄豆粉培养基的产酶效果较为理想,最终确定培养基为(g/L海水):黄豆粉25 g,酶活力最高为8.5 U/mL,该培养基成本不足原发酵培养基成本的5%,为微生物工业化应用生产壳聚糖酶提供了直接的理论和实验基础。
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