摘要:
The present invention relates to a method for reducing the amount of steryl glycoside in an oil or fat (e.g. a biofuel substrate) and/or a biofuel, the method comprising admixing one or more enzymes with an oil or fat comprising steryl glycoside; such that said one or more enzymes degrades the steryl glycoside. The one or more enzymes is preferably an enzyme which is capable of hydrolysing the glycosidic bond in a steryl glycoside. Suitably the enzyme may be a glycosidase enzyme and/or a β-glucosidase and/or an amyloglucosidase.
摘要:
A method of producing one or more of a carbohydrate ester, a protein ester, a protein subunit ester or a hydroxy acid ester, which method comprises admixing an acyl donor, an acyl acceptor and water to produce a high water environment comprising 5-98% water, wherein said acyl donor is a lipid substrate selected from one or more of the group consisting of a phospholipid, a lysophospholipid, a triacylglyceride, a diglyceride, a glycolipid or a lysoglycolipid and said acyl acceptor is selected from one or more of the group consisting of a carbohydrate, a protein, a protein subunit, or a hydroxy acid; and contacting the admixture with a lipid acyltransferase, such that said lipid acyltransferase catalyses one or both of the following reactions; alcoholysis or transesterification.
摘要:
A process of enzymatic degumming edible oils, comprising treating the 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 hydroxy 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 comprises 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.
摘要翻译:一种酶促脱胶食用油的方法,包括用脂质酰基转移酶处理食用油以便将酰基从大部分磷脂转移到一个或多个酰基受体,其中酰基受体可以是任何含有羟基的化合物 。 在一个实施方案中,优选酰基受体是水,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.5 序列号6,序列号7,序列号8,序列号9,序列号10,序列号11,序列号12,序列号13,序列号 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或与其具有75%或更多同一性的氨基酸序列。 还教导了包含如SEQ ID No.16所示的氨基酸序列的新型脂质酰基转移酶。
摘要:
A polypeptide having lipase activity that retains at least 80 % activity after 4 days at 20 °C at a pH in the range of 3.5-8, retains at least 60 % of its activity after 1 hour at 60 °C in acetate buffer at pH 5.0, and has an isoelectric point in the range of 3.5-4.5. The polypeptide is useful as a dough and bread quality improving agent and it reduces crumb pore diameter, increases crumb pore homogeneity and improves the gluten index in doughs. The polypeptide is derived from fungi, yeast, bacteria, plant cells or animal cells and is produced in transformed host cells including filamentous fungi, e.g. Aspergillus tubigensis.
摘要:
There is provided use of a conversion agent to prepare from a food material a foodstuff comprising at least one functional ingredient, wherein the at least one functional ingredient has been generated from at least one constituent of the food material by the conversion agent.
摘要:
A fungal wild-type lipolytic enzyme having a higher ratio of activity on polar lipids compared with triglycerides, wherein the enzyme preferably has a phospholipidAriglyceride hydrolysing activity ratio of at least 4. Preferably, the lipolytic enzyme according to the present invention has a glycolipid:triglyceride hydrolysing activity ratio of at least 1.5. In one embodiment, the fungal lipolytic enzyme according to the present invention comprises an amino acid sequence as shown in SEQ ID No. 1 or SEQ ID No. 2 or SEQ ID No. 4 or SEQ ID No. 6 or an amino acid sequence which has at least 90% identity thereto. The present invention further encompasses a nucleic acid encoding a fungal lipolytic enzyme, which nucleic acid is selected from the group consisting of: (a) a nucleic acid comprising a nucleotide sequence shown in SEQ ID No. 3, SEQ ID No. 5 or SEQ ID No. 7; (b) a nucleic acid which is related to the nucleotide sequence of SEQ ID No. 3, SEQ ID No. 5 or SEQ ID No. 7 by the degeneration of the genetic code; and (c) nucleic acid comprising a nucleotide sequence which has at least 90% identity with the nucleotide sequence shown in SEQ ID No. 3, SEQ ID No. 5 or SEQ ID No. 7.
摘要:
There is provided use of a conversion agent to prepare from a food material a foodstuff comprising at least one functional ingredient, wherein the at least one functional ingredient has been generated from at least one constituent of the food material by the conversion agent.
摘要:
There is provided a composition comprising (a) an oil and/or an oil mimetic component; (b) a triglyceride fatty acid and/or a high melting point emulsifier component; (c) a particulate component; wherein the particulate component (c) is in a stable suspension within a crystal matrix formed by component (b); with the proviso that the particulate component (c) does not form a crystal matrix.
摘要:
An enzymatic solid phase reaction for preparing a solid having greater than 40 % monoglyceride from a reaction mixture; wherein the reaction mixture comprises: (i) lipase; (ii) at least 14 weight % glycerol; and (iii) glyceride; and optionally (iv) lecithin; such that if (iv) is not present then the glyceride (iii) has an iodine value of between about 5 and about 35, and a solid fat content of more than about 75 % at 20 °C. The present invention further relates to a process of preparing an enzymatic solid phase reaction mixture for preparing a solid having greater than 40 % monoglyceride.