摘要:
Disclosed are novel strains of Rhizopus oryzae and uses thereof. The strains of the invention are temperature-resistant and convert a carbon source to lactic acid at high temperatures.
摘要:
Process for the preparation of acid stable protease having a broad activity spectrum by culturing selected mutants of Rhizopus rhizopodiformis CBS 227.75 under aerobic conditions in a nutrient medium containing assimilable carbon and nitrogen sources, at a pH between 3 and 7 and at a temperature between 25.degree. C. and 50.degree. C., and separating the resulting protease enzyme; the mutants used in the process together with a process for preparation of the mutants.
摘要:
A rhizopus oryzae strain, mutagenesis and screening methods thereof, and methods of producing fumaric acid by fermentation. The strain is named as Rhizopus oryzae ME-F13, and deposited in China Center for Type Culture Collection with depository number CCTCC M 2010351. The strain is obtained by physically mutagenizing the original strain ME-F12 through ion injection, culturing the processed bacteria on the solid selective plate containing 2-D-deoxylucose (2-DG) and picking up 2-DG-resistant single colony. The strain is capable of simultaneously saccharifying starchy material and fermenting it to produce fumaric acid. With an improved enzymatic activity, the strain can be directly used to ferment raw starchy materials without needing pre-saccharifying.
摘要翻译:根霉菌株,其诱变和筛选方法,以及通过发酵产生富马酸的方法。 该菌株被命名为米曲霉ME-F13,并存放于中国型号培养基中心,存放号码为CCTCC M 2010351.该菌株是通过离子注射物理诱变原始菌株ME-F12获得的, 含有2-D脱氧葡萄糖(2-DG)的固体选择性板和拾取2-DG抗性单个菌落。 该菌株能够同时糖化淀粉物质并将其发酵以产生富马酸。 具有改善的酶活性,该菌株可以直接用于发酵生淀粉材料,而不需要预糖化。
摘要:
A new stable combination of Rhizopus arrhizus lipase and Pseudomonas fluorescens lipase for hydrolyzing triglycerides to free glycerol in body fluids is disclosed. Substantially complete and rapid hydrolysis is provided by a mixture of enzymes using a ratio between 2:1 and 10:1, about 5:1 being preferred, the amounts representing units of activity of each lipase. Approximately 150 units of total lipases will provide substantially complete hydrolysis of the triglycerides contained in 20 microliters of serum up to a minimum concentration of 5 g./l. within 2.5 minutes at 37.degree. C.
摘要:
Disclosed are novel strains of Rhizopus oryzae and uses thereof. The strains of the invention are temperature-resistant and convert a carbon source to lactic acid at high temperatures.
摘要:
A host vector system comprising Rhizopus species such as Rhizopus niveus (IFO4810) and a plasmid derived from Phycomycetes such as Mucor, Phycomyces and Absidia wherein the plasmid is contained in a chromosome and/or cytoplasm of the Rhizopus species. The host vector system is suitable for the extracellular production of proteins and enzymes. A process for preparing the host vector system is also provided.
摘要:
Compounds of formula (I): ##STR1## (wherein R represents a group of formula ##STR2## and the corresponding ring-closed lactones, salts (especially alkali metal salts) and esters (especially C.sub.1 -C.sub.5 alkyl esters) thereof may be prepared by subjecting ML-236B, or ML-236B carboxylic acid or a salt or ester thereof to enzymatic hydroxylation, which may be effected by means of microorganisms of the genera Mucor, Rhizopus, Zygorynchus, Circinella, Actinomucor, Gongornella, Phycomyces, Martierella, Pycnoporus, Rhizoctonia, Absidia, Cunninghamella, Syncephalastrum and Streptomyces, or cell-free, enzyme-containing extracts from said microorganisms. The compounds are capable of inhibiting biosynthesis of cholesterol and are thus useful in the treatment of hypercholesteraemia.
摘要翻译:式(I)的化合物:其中R表示式(Ⅰ)的基团或相应的闭环内酯,盐(特别是碱金属盐)和酯(特别是C 1 -C 5) 烷基酯)可以通过使ML-236B或ML-236B羧酸或其盐或酯进行酶羟基化来制备,其可以通过毛霉属,根霉属,丝状芽孢杆菌属,圆弧菌属,放线菌属, 金盏草,植物疫霉,火鸡lla,,us,,,Ab ia,,,,,,and and and。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。
摘要:
Provided is a mutant filamentous fungus having improved C4 dicarboxylic acid productivity and a method for producing a C4 dicarboxylic acid using the mutant filamentous fungus. A mutant filamentous fungus having enhanced expression of at least one polypeptide selected from the group consisting of a polypeptide consisting of the amino acid sequence represented by SEQ ID No: 2; a polypeptide consisting of an amino acid sequence having an identity of at least 90% with the amino acid sequence represented by SEQ ID No: 2 and having malic enzyme activity; and a polypeptide consisting of an amino acid sequence having deletion, substitution, addition or insertion of one or more amino acids with respect to the amino acid sequence represented by SEQ ID No: 2 and having malic enzyme activity.
摘要:
A rhizopus oryzae strain, mutagenesis and screening methods thereof, and methods of producing fumaric acid by fermentation. The strain is named as Rhizopus oryzae ME-F13, and deposited in China Center for Type Culture Collection with depository number CCTCC M 2010351. The strain is obtained by physically mutagenizing the original strain ME-F12 through ion injection, culturing the processed bacteria on the solid selective plate containing 2-D-deoxylucose (2-DG) and picking up 2-DG-resistant single colony. The strain is capable of simultaneously saccharifying starchy material and fermenting it to produce fumaric acid. With an improved enzymatic activity, the strain can be directly used to ferment raw starchy materials without needing pre-saccharifying.
摘要翻译:根霉菌株,其诱变和筛选方法,以及通过发酵产生富马酸的方法。 该菌株被命名为米曲霉ME-F13,并存放于中国型号培养基中心,存放号码为CCTCC M 2010351.该菌株是通过离子注射物理诱变原始菌株ME-F12获得的, 含有2-D脱氧葡萄糖(2-DG)的固体选择性板和拾取2-DG抗性单个菌落。 该菌株能够同时糖化淀粉物质并发酵以产生富马酸。 具有改善的酶活性,该菌株可以直接用于发酵生淀粉材料,而不需要预糖化。