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发明公开
CN109022329A 一种产生物表面活性剂的双头菌菌株 失效 - 权利终止

一种产生物表面活性剂的双头菌菌株
摘要：
本发明公开了一种产生物表面活性剂的双头菌菌株。该菌株分离自延长油田坪桥区块的油水样中，经16S rDNA序列鉴定属于双头菌属(Labrys sp.)，保藏编号CGMCC No.16012。该菌株在以原油(或菜油)50g/L，(NH4)2SO4 10.0g/L，KCl 1.1g/L，NaCl 1.1g/L，MgSO4 0.5g/L，KH2PO4 3.4g/L，K2HPO4 4.4g/L，酵母粉0.5g/L的培养基中于30℃、160rpm恒温振荡培养5d后可使培养基的表面张力由初始的71.2mN/m降至32.1mN/m，其产生的表活剂属于糖脂类生物表面活性剂，具有很好的应用潜力。
摘要（英）：

The invention discloses a Labrys sp. strain for producing biosurfactant. The Labrys sp. strain is separated from oil-water sample in Pingqiao block of Yanchang oilfield, and is identified through 16SrDNA sequence to belong to the Labrys sp. The strain is assigned the accession number CGMCC No. 16012; when being cultured in a culture medium at 30 DEG C for 5 days in a manner of constant temperature shake cultivation at 160 rpm, the strain can reduce the surface tension of the culture medium from initial 71.2 mN/m to 32.1 mN/m. The culture medium includes: 50 g/L of raw oil or rapeseed oil, 10.0 g/L of (NH4)2SO4, 1.1 g/L of KCl, 1.1 g/L of NaCl, 0.5 g/L of MgSO4, 3.4 g/L of KH2PO4, 4.4 g/L of K2HPO4, and 0.5 g/L of yeast powder. The produced surfactant belongs to glycolipid biosurfactants and has excellent application potential.

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