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    METHOD FOR PREPARING AN INHIBITED STARCH
    53.
    发明申请
    METHOD FOR PREPARING AN INHIBITED STARCH 审中-公开

    公开(公告)号：US20200270370A1

    公开(公告)日：2020-08-27

    申请号：US16637648

    申请日：2018-07-11

    申请人： SVERIGES STÄRKELSEPRODUCENTER, FÖRENING U.P.A.

    发明人： Mikael Brynolf ,  Åke Ståhl ,  Mathias Samuelsson

    IPC分类号： C08B31/18 ,  A23L5/20 ,  A23L29/219 ,  A23L3/3508 ,  A23L3/3544

    摘要： A method for preparing an inhibited starch, wherein it comprises the steps of a) providing a slurry containing a native granular starch obtained from a starch containing raw material, b) alkalizing the slurry by adding ammonia or by adding one or more compounds having the ability to release or produce ammonia in the slurry, c) adjusting the pH of the slurry to a value between 7 and 10, d) adding at least one oxidant being a source of active chlorine to the slurry for a reaction with said ammonia, e) adding at least one organic acid or a bisulfite to the slurry with a view to eliminating any residual oxidant, off-taste, and undesired smell, and f) adding at least one antioxidant to the slurry with a view to stabilizing the achieved inhibition of the starch during prolonged warehouse storage, is disclosed, as well as a starch having increased viscosity when cooked in hard water compared to when cooked in distilled water; an inhibited starch prepared with the method according to the present invention; use of said inhibited starch in a food product; and a food product containing said inhibited starch.

    PROCESS FOR THE OXIDATION OF STARCH-BASED MATERIALS
    56.
    发明申请
    PROCESS FOR THE OXIDATION OF STARCH-BASED MATERIALS 审中-公开

    公开(公告)号：US20180112012A1

    公开(公告)日：2018-04-26

    申请号：US15562490

    申请日：2016-03-11

    申请人： Ambiente E Nutrizione S.R.L.

    发明人： Massimo Vezzani

    IPC分类号： C08B31/18 ,  C01B15/01 ,  B01J19/18

    CPC分类号： C08B31/18 ,  B01J19/1812 ,  B01J2204/005 ,  B01J2208/00752 ,  B01J2208/065 ,  B01J2219/00033 ,  B01J2219/00085 ,  C01B15/01

    摘要： A process for the oxidation of powder materials containing starch, which comprises the successive steps of mixing a powder material comprising starch with an aqueous solution of hydrogen peroxide (H2O2) and adding to the mixture thus obtained an aqueous solution of ammonia and reacting it with said mixture; the process may also comprise a further step of drying the aforementioned mixture to obtain a powder material containing oxidized starch; the process may advantageously comprise the steps of:—feeding a continuous flow of powder material containing starch into a first reactor (R) comprising a cylindrical tubular body (1) and a rotor, arranged in the cylindrical tubular body, comprising a shaft (8) provided with elements (9) projecting radially therefrom and rotated at a speed greater than or equal to 50 rpm,—feeding into said reactor also a continuous flow of an aqueous solution of hydrogen peroxide—reacting the powder material containing starch and the hydrogen peroxide;—discharging from a discharge opening (7) of the first reactor a continuous flow of a wet powder and feeding this continuous flow into a second reactor (R′) comprising a cylindrical tubular body (101) and a rotor, arranged in the cylindrical tubular body, comprising a shaft (108) provided with elements (109) projecting radially therefrom and rotated at a speed greater than or equal to 50 rpm;—feeding into the second reactor (R′) also a continuous flow of an aqueous solution of ammonia,—discharging from a discharge opening (107) of the second reactor a continuous flow of a wet powder comprising oxidized starch;—drying the wet powder to a moisture content less than or equal to 20% by weight, thereby obtaining a powder material containing oxidized starch.