CAS: 10102-40-6; Sodium Molybdate Dihydrate

专利信息

专利号:US-10662452-B2
优先权日:2016-09-05
标 题 :Strain of meyerozyma guilliermondii and its use in methods of catalytic synthesis of 2,5-dihydroxymethylfuran
发明人：LI NING; LI YANMEI; ZONG MINHUA
权利人:UNIV SOUTH CHINA TECH
摘要:A yeast strain and a method for the synthesis of 2,5-dihydroxymethylfuran using this strain are disclosed. The yeast strain is Meyerozyma guilliermondii SC 1103, which has been maintained in the China Center for Type Culture Collection (CCTCC, Wuhan, P.R. China) with an access No. of M2016144. The method for the synthesis of 2,5-dihydroxymethylfuran using this strain is described as follows: after pre-cultivation and cultivation, Meyerozyma guilliermondii SC 1103 cells are added into the buffer solutions containing 5-hydroxymethylfurfural and glucose; the biocatalytic reaction is conducted under designated conditions, thus affording 2,5-dihydroxymethylfuran. This disclosure has many advantages such as good selectivity, mild reaction conditions, environmental friendliness, high efficiency, and good yield.

专利号:US-2010105111-A1
优先权日:2007-02-28
标 题 :Method for production of optically active amino acid
发明人：ASANO YASUHISA; TANAKA AKINORI; HASEMI RYUJI
权利人:MITSUBISHI GAS CHEMICAL CO
摘要:An optically active amino acid is useful as food or feed, agrochemicals, chemical products for industrial use, intermediates for synthesis of cosmetics or medicines and the like and is also important as optical resolving agents or chiral building blocks for use in organic synthesis. Thus, the object is to provide an industrially practical method for producing the optically active amino acid simply and at low cost. The method comprises the step of reacting an aminonitrile composed of a mixture of a D-aminonitrile and an L-aminonitrile with a biocatalyst which is one derived from a newly isolated microorganism belonging to the genus Rhodococcus and has an activity of converting the two aminonitriles into a D-amino acid amide and an L-amino acid amide respectively, a biocatalyst which has an activity of racemizing the D-amino acid amide and the L-amino acid amide to each other, and a biocatalyst which has an activity of converting one of the D-amino acid amide and the L-amino acid amide into the corresponding D- or L-amino acid.

专利号:US-10059935-B2
优先权日:2015-12-17
标 题 :Composite of Paracoccus denitrificans immobilized on modified graphene oxide and its preparation method and application
发明人：LU JIANMEI; CHEN DONGYUN
权利人:UNIV SOOCHOW
摘要:This invention provided a preparation method of the composite which was immobilized Paracoccus denitrificans on modified graphene oxide and its application. The composite was obtained by following the steps below: 1) Synthesis of graphene oxide; 2) Synthesis of modified graphene oxide; 3) Acclimatization and immobilization of Paracoccus denitrificans. In this invention, the raw materials were low-cost and easily obtained used in the preparation process; easy operation, convenient, and no expensive instruments during the whole process; this invention of the composite could remove DMF from wastewater completely, and with the advantages of high efficiency, good recycle performance, economical, environmentally friendly, better feasibility.

专利号:US-2002192767-A1
优先权日:1999-10-13
标题 :Biosynthesis of polyketide synthase substrates
发明人：KHOSLA CHAITAN; PFEIFER BLAINE
摘要:The use of enzymes which catalyze the production of starter and extender units for polyketides is described. In addition, modified loading modules are described, which can accept a variety of starting units such as substituted benzoates, and which can be used to generate substituted derivatives of natural products. These enzymes may be used to enhance the yield of polyketides that are natively produced or polyketides that are rationally designed. By using these techniques, the synthesis of a complete polyketide has been achieved in E. coli . Production can be enhanced in microbial organisms of polyketides and other secondary metabolites by delaying production until after exponential phase and by maintaining relatively constant nutrient levels in the medium. In addition, polyketide production can be enhanced by providing an expression system for a thioesterase II. Thus, by modifying the host organism and changing the culture conditions, synthesis of a secondary metabolite can be enhanced. The present invention also results in a host organism with desirable characteristics to be used in the production of such polyketides and to assess the results of gene shuffling.

专利号:US-11390890-B2
优先权日:2015-02-15
标 题:Dibasic organic acid producing strain and preparation and application of same
发明人：TIAN CHAOGUANG; LI JINGEN; LONG CHUANNAN; SUN TAO; LIN LIANGCAI; XU JING; LIU QIAN; JI JINGXIAO; SUN WENLIANG; MA YANHE
权利人:TIANJIN INST IND BIOTECHNOLOGY CAS
摘要:Provided are an engineered strain for synthesizing a dibasic organic acid and preparation and application of same. The engineered strain introduces or up-regulates expression of a positive regulator gene for synthesis of a dibasic organic acid, and/or down-regulates expression of a negative regulator gene for synthesis of a dibasic organic acid, as compared with the origin strain of the engineered strain, the producing capability for producing the dibasic organic acid is improved. The dibasic organic acid comprises malic acid, succinic acid, fumaric acid, oxaloacetic acid, glutaric acid, and adipic acid; the expression product of the positive regulator gene comprises aspartate aminotransferase, glutamic acid-aspartate transporter, C4-dicarboxylic acid transporter, pyruvate carboxylase and malate dehydrogenase, glucose transporter; the expression product of the negative regulatory gene comprises succinyl-CoA synthase, and malic acid-alpha ketoglutarate transporter, and the original strain comprises Myceliophthora thermophila, Thielavia terrestris, Aspergillus , and Rhizopus.

专利号:US-2008311631-A1
优先权日:2004-06-04
标题 :Biosynthetic Production of 4-Amino 4-Deoxychorismate (Adc) and [3R,4R]-4-Amino-3-Hydroxycyclohexa-1,5-Diene-1-Carboxylic Acid (3,4-Cha)
发明人：WUBBOLTS MARCEL GERHARDUS; BOVENBERG ROELOF ARY LANS; SPRENGER GEORG; BONGAERTS JOHANNES JOSEF; KOZAK STEFAN; MULLER MICHAEL; LORBACH VOLKER
权利人:WUBBOLTS MARCEL GERHARDUS; BOVENBERG ROELOF ARY LANS; SPRENGER GEORG; BONGAERTS JOHANNES JOSEF; KOZAK STEFAN; MULLER MICHAEL; LORBACH VOLKER
摘要:The invention relates to a process for the biosynthetic production of 4-amino-4-deoxychorismate (ADC) performed fermentatively in vivo with a 4-amino-4-deoxychorismate synthase, preferably a PabAB bipartite protein (which may be a fusion protein), at an increased level of activity, thereby obtaining a broth comprising ADC and 4-amino-4-deoxyprephenate (ADP), that are recovered. The invention also relates to a further process of converting the ADP into p-aminophenylalanine. The invention, moreover relates to biosynthetic production of [3R,4R]-4-amino-3-hydroxycyclohexa-1,5-diene-1-carboxylic acid (3,4-CHA), by concerted action of such 4-amino-4-deoxychorismate synthase and of an enzyme capable of converting isochorismate into [5S,6S]-5,6 dihydroxycyclohexa-1,3-diene-1-carboxylic acid (2,3-CHD), preferably a phenazine biosynthesis protein PhzD, including recovery of 3,4-CHA. The invention also relates to expression vectors and host cells for use in any of such processes. The invention further relates to the use of 3,4-CHA as a catalytically active product, in particular as a chiral catalyst. And the invention finally relates to synthesis of oseltamivir phosphate from 3,4-CHA.