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    • 82. 发明申请
    • METHOD OF PRODUCING FATTY ACID ALKYL ESTER USING MICROORGANISMS HAVING ABILITY TO PRODUCE OIL
    • 使用具有生产油的能力的微生物生产脂肪酸的方法
    • US20120190088A1
    • 2012-07-26
    • US13384576
    • 2010-07-19
    • Sang Yup LeeYong Jun Choi
    • Sang Yup LeeYong Jun Choi
    • C12P7/64
    • C12N9/20C12P7/649C12Y301/01003Y02E50/13Y02P20/52
    • The present invention relates to a method of producing a fatty acid alkyl ester using microorganisms having the ability to produce oil, and more particularly to a method of producing a fatty acid alkyl ester, the method comprising culturing microorganisms having the ability to produce oil, thus accumulating a large amount of oil in the microorganisms, inducing the autolysis of the produced oil in the microorganisms to produce a free fatty acid, and converting the free fatty acid into an alkyl ester. According to the method of the present invention, oil accumulated in microorganisms, such as triacylglycerol that is typical oil produced by microorganisms, can be converted into a fatty acid alkyl ester with high efficiency using a metabolic engineering approach. Thus, the method of the present invention is useful for the industrial production of a fatty acid alkyl ester which has been recently found to be effective as biodiesel.
    • 本发明涉及使用具有生产油的能力的微生物生产脂肪酸烷基酯的方法,更具体地说,涉及生产脂肪酸烷基酯的方法,该方法包括培养具有生产油的微生物,从而 在微生物中积聚大量的油,引起微生物中产生的油的自溶以产生游离脂肪酸,并将游离脂肪酸转化为烷基酯。 根据本发明的方法,可以使用代谢工程方法将积累在微生物中的微生物油(例如由微生物产生的典型油的三酰基甘油)的油转化为高效率的脂肪酸烷基酯。 因此,本发明的方法可用于最近被发现作为生物柴油有效的脂肪酸烷基酯的工业生产。
    • 88. 发明授权
    • Enzymatic oil-degumming method
    • 酶法脱脂方法
    • US08192782B2
    • 2012-06-05
    • US11623689
    • 2007-01-16
    • Jorn Borch SøeMark Turner
    • Jorn Borch SøeMark Turner
    • A23D7/00C12N9/00C12N9/10C12N15/00C07H21/04
    • C12N9/1029A21D8/042A23J7/00C11B3/003C12N9/20C12P7/6418C12P7/6445C12P7/6481C12Y301/01003
    • A process of enzymatic degumming edible oils, comprising treating edible oil with a lipid acyltransferase so as to transfer an acyl group from a major part of the phospholipid to one or more acyl acceptors, wherein the acyl acceptor may be any compound comprising a hydroxyl group. In one embodiment preferably the acyl acceptor is water and in another embodiment preferably the acyl acceptor is one or more sterols and/or stanols. When the acyl acceptor is a stanol and/or sterol, one or more sterol esters and/or stanol esters are produced. The lipid acyltransferase for use in the process of the present invention may comprise one or more of the following amino acid sequences: SEQ ID NO: 1, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 7, SEQ ID NO: 8, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11, SEQ ID NO: 12, SEQ ID NO: 13, SEQ ID NO: 14, or SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 36, SEQ ID NO: 38, SEQ ID NO: 40, SEQ ID NO: 41, SEQ ID NO: 45, SEQ ID NO: 47, SEQ ID NO: 50 or an amino acid sequence which has 75% or more identity thereto. A novel lipid acyltransferase comprising the amino acid sequence shown as SEQ ID NO: 16 is also taught.
    • 一种酶促脱脂食用油的方法,包括用脂质酰基转移酶处理食用油,以将酰基从大部分磷脂转移到一个或多个酰基受体上,其中酰基受体可以是包含羟基的任何化合物。 在一个实施方案中,优选地,酰基受体是水,在另一个实施方案中,优选酰基受体是一种或多种甾醇和/或甾烷醇。 当酰基受体是甾烷醇和/或甾醇时,产生一种或多种甾醇酯和/或甾烷醇酯。 用于本发明方法的脂质酰基转移酶可以包含一个或多个以下氨基酸序列:SEQ ID NO:1,SEQ ID NO:3,SEQ ID NO:4,SEQ ID NO:5,SEQ ID NO: SEQ ID NO:7,SEQ ID NO:8,SEQ ID NO:9,SEQ ID NO:10,SEQ ID NO:11,SEQ ID NO:12,SEQ ID NO:13, 14,或SEQ ID NO:15,SEQ ID NO:16,SEQ ID NO:17,SEQ ID NO:18,SEQ ID NO:36,SEQ ID NO:38,SEQ ID NO:40,SEQ ID NO:41 ,SEQ ID NO:45,SEQ ID NO:47,SEQ ID NO:50或与其同一性为75%以上的氨基酸序列。 还教导了包含SEQ ID NO:16所示氨基酸序列的新型脂质酰基转移酶。