FERMENTATIVE PRODUCTION OF CARBOHYDRATES BY MICROBIAL CELLS UTILIZING A MIXED FEEDSTOCK

    公开(公告)号:US20220145342A1

    公开(公告)日:2022-05-12

    申请号:US17434967

    申请日:2020-02-28

    IPC分类号: C12P19/02 C12P19/04 C12P19/18

    摘要: Disclosed are genetically engineered microbial cells for the production of a carbohydrate of interest, wherein the microbial cells possess an increased intracellular availability of at least one sugar phosphate, and produce the carbohydrate of interest when being cultivated in a culture medium containing a mixed monosaccharide feedstock as main carbon and energy source. Also disclosed is a fermentative method of producing a carbohydrate of interest by cultivating said genetically engineered microbial cell in the presence of a mixed monosaccharide feedstock as main carbon and energy source.

    ENZYMATIC PRODUCTION OF MANNOSE
    54.
    发明申请

    公开(公告)号:US20220127653A1

    公开(公告)日:2022-04-28

    申请号:US17429104

    申请日:2020-02-11

    申请人: BONUMOSE, INC.

    IPC分类号: C12P19/02 A23L33/125

    摘要: Disclosed herein are improved processes for making mannose including the step of converting the M6P to mannose, catalyzed by a M6PP, using enzymes with higher activities compared to M6PPs previously used in a process to produce mannose.

    METHOD FOR PRODUCING FRUCTOSE-6-PHOSPHATE FROM DIHYDROXYACETONE PHOSPHATE AND GLYCERALDEHYDE-3-PHOSPHATE

    公开(公告)号:US20220112532A1

    公开(公告)日:2022-04-14

    申请号:US17263401

    申请日:2019-07-26

    摘要: Described is a method for the production of fructose-6-phosphate (F6P) from dihydroxyacetone phosphate (DHAP) and glyceraldehyde-3-phosphate (G3P) comprising the steps of: (a) enzymatically converting dihydroxyacetone phosphate (DHAP) into dihydroxyacetone (DHA); and (b) enzymatically converting the thus produced dihydroxyacetone (DHA) and glyceraldehyde-3-phosphate (G3P) into fructose-6-phosphate (F6P); or comprising the steps of: (a′) enzymatically converting glyceraldehyde-3-phosphate (G3P) into glyceraldehyde; and (b′) enzymatically converting the thus produced glyceraldehyde together with dihydroxyacetone phosphate (DHAP) into fructose-1-phosphate (F1P); and (c′) enzymatically converting the thus produced fructose-1-phosphate (F1P) into fructose-6-phosphate (F6P).

    Glucoamylase variants and polynucleotides encoding same

    公开(公告)号:US11279921B2

    公开(公告)日:2022-03-22

    申请号:US16603639

    申请日:2018-04-10

    申请人: NOVOZYMES A/S

    IPC分类号: C12N9/34 C12P19/02 C12P19/14

    摘要: The present invention relates to glucoamylase variants having an increase in raw starch activity compared to the guy-coamylase disclosed as SEQ ID NO: 2, comprising one or more modifications in the catalytic domain and/or one or more modifications in the starch binding domain selected from: a) at least one, preferably at least two, preferably at least three, preferably at least four of: V18M, T43K, N112L, T116R, A117Q, G120S, A271F, Y295W, Q318Y; and/or b) Introducing at least three, preferably at least four substitutions selected from the group: S458C, S458SCGG, S458SGGC, A493V, A518K, E520Q, N527M, S540K, R, S(G)546P, T(V)549W, N503R, N539R+I541Y+T543V+A545S+S546GCGV+G547S+S548T+T549A. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants.