• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A simplified process for the production of a protein isolate from defatted vegetable protein material is disclosed which comprises extracting a defatted vegetable protein material with an aqueous extractant to provide a protein extract, followed by adjustment of the pH of said extract to the isoelectric point of the protein to provide a protein precipitate. The protein precipitate is thereafter heated to a temperature between about 115 DEG -145 DEG F. and concentrated to a solids level of at least about 44% by weight. This unexpectedly results in the production of a protein isolate which has an improved degree of whiteness over those isolates produced by prior art techniques.
    公开号:SU1554754A3
    申请号:SU802978746
    申请日:1980-09-05
    公开日:1990-03-30
    发明作者:Е.Валш Джеймс
    申请人:Ральстон Пьюрина Компани (Фирма)；
    IPC主号:
    专利说明:

    one
    (21) 2978746 / 31-13
    (22) 05.09.80 (31) 073407
    07.09.79
    US
    03/30/90
    (32) (33) (46)
    Bul № 12
    (71) Ralston Purein Company (US)
    (72) James E. Palga (US)
    (53) 678.562 (088.8)
    (56) Patent of the USSR No. 291394, cl. A 23 J 1/14, 1967.
    (54) METHOD FOR OBTAINING PROTEIN INSULATES FROM SKYLED SOY RAW MATERIALS
    (57) The invention relates to methods for producing protein isolates from plant protein materials, for example, from soybean meal. The purpose of the invention is to improve the quality of protein isole by increasing the degree of whiteness. The method is carried out as follows. Fat-free soybean flakes are extracted with soda in an alkaline medium at a pH of 6.5-10, followed by precipitation of the protein at the isoelectric point with a pI of 4.0-5.0 and drying the protein residue. At the same time, before drying, the protein precipitate is heated to 46-62.8 ° C and concentrated to a solids content of 44-45% by weight. 1 tab.
    The invention relates to methods for producing protein isolates from plant protein materials, for example, from soybean seed flour.
    The purpose of the invention is to improve the quality of the protein isolate by increasing the degree of whiteness.
    The method is carried out as follows.
    Proteins and caxdpa are extracted from defatted soy raw materials by dispersing them in an aqueous medium with the addition of a stick agent in order to raise the pH of the mixture to 6.5-10. The resulting liquid extract is separated from the insoluble solid by passing through a sieve or centrifuged. After that
    The clarified liquid is acidified to bring the pH to 4.0-5.0 (the value of the isoelectric point), and the protein precipitates out of solution in the form of a chewy clot. Next, the mixture is centrifuged or filtered, followed by heating the precipitated protein precipitate to 46-62.8 ° C by concentration to a solids content of 44- 45% by weight and drying. At the above temperature conditions and concentrations up to 44-45 wt.%, A protein isolate of increased brightness is obtained.
    Example. 68 kt / h of the defatted soy flakes load in ecotraksp
    SL
    4 1
    cn
    -U

    about
    A pion tank is added to which 680 kg / h of water with a temperature of 32 ° C and 1.3% by weight of calcium hydroxide is added to 9.7.
    The soybean flakes are extracted under these conditions for 30 minutes, after which the solution is separated from the extracted flakes by centrifugation, and the extracted flakes are again filled with 408 kg / h of water at 32 ° C and re-extracted, after which the first and second batches of the extract are combined.
    85% phosphoric acid is added to the resulting aqueous extract in order to bring the system pH to 4.5 and cause protein precipitation. The resulting protein precipitate is heated by supplying live steam to 57.2 ° C and held under these conditions for 8-10 seconds. After that, the precipitated protein is concentrated by centrifuging to a solids content of 45 wt. Thereafter, the suspension is prepared from the obtained protein precipitate - isolate by adding water, and the resulting suspension is passed through a jet sprayer under pressure.
    , 2
    6 kg / cm simultaneously with steam ejection, then the suspension is sprayed dry to a moisture content of about 47. Similarly to
    0
    Samples from the control isolate, and then from both isolates, samples are prepared and analyzed for protein content, moisture content, pH and chromaticity.
    The chromaticity assessment is carried out using a laboratory Hünther calorimeter, where the color is determined by comparing the values for the L, a and b fields. The value of L usually corresponds to the degree of whiteness of the protein isolate, and the higher the Lt the higher the degree of whiteness.
    The table presents the comparative data of the control of the solvent and isolate obtained by the proposed method.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A method of obtaining a protein isolate from defatted soy raw material, which includes extracting protein with water in an alkaline medium at pH 6.5-10,. precipitating the protein at an isoelectric point at pH 4.0-5.0 and drying the protein precipitate, differing and, and - i so that, in order to improve the quality of the protein isolate by increasing the whiteness, before drying the protein precipitate is heated to 46-62.8 C and KoHueHtpnpyioT to containing,
    nor in it solids 44-45 wt.%., i
    类似技术:
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    US3043826A|1962-07-10|Method for producing organoleptically bland protein
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    US2991309A|1961-07-04|Protein hydrolysis
    US3758452A|1973-09-11|Traction and isolectric protein precipitation detoxification and isolation of rapeseed protein by aqueous saline ex
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    同族专利:
    公开号 | 公开日
    BE885090A|1980-12-31|
    JPH0156743B2|1989-12-01|
    JPS5664755A|1981-06-02|
    US4309344A|1982-01-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2243871A|1941-06-03|Method of making protein products |
    US2666049A|1954-01-12|Method of manufacturing protein |
    US2460627A|1949-02-01|Process fob the isolation of |
    US2331619A|1934-05-19|1943-10-12|Reynolds Res Corp|Process for extraction of vegetable proteins|
    US2607767A|1949-05-14|1952-08-19|Int Minerals & Chem Corp|Process for extracting vegetable protein|
    US2589867A|1949-07-08|1952-03-18|Buckeye Cotton Oil Company|Process for recovery of vegetable protein|
    US2862918A|1956-03-12|1958-12-02|Glidden Co|Acylated, isolated, partially-hydrolyzed, soya protein and process|
    US2881159A|1956-04-02|1959-04-07|Glidden Co|Process for isolating soya protein|
    US3043826A|1959-01-20|1962-07-10|Short Milling Co J|Method for producing organoleptically bland protein|
    GB1210926A|1966-12-01|1970-11-04|Fuji Oil Co Ltd|Production of proteins|
    JPS5624490B2|1976-04-27|1981-06-06|
    US4072670A|1976-10-26|1978-02-07|Mead Johnson & Company|Low phytate isoelectric precipitated soy protein isolate|US4435438A|1980-12-29|1984-03-06|A. E. Staley Manufacturing Company|Soy isolate suitable for use in imitation cheese|
    US4418013A|1981-03-16|1983-11-29|General Foods, Inc.|Rapeseed protein isolate|
    US4366097A|1981-03-16|1982-12-28|General Foods, Inc.|Novel protein isolation procedure|
    US4460613A|1982-11-01|1984-07-17|Ralston Purina Company|Basal material for the preparation of tofu|
    US4530788A|1982-12-03|1985-07-23|Stauffer Chemical Company|Oil seed proteins evidencing improved functionality|
    JPS59113874A|1982-12-17|1984-06-30|Tokiwa Kanpou Seiyaku:Kk|Healthy food|
    JPH0461616B2|1983-10-04|1992-10-01|Taiyo Oil & Fat Mfg|
    US4961788A|1989-06-28|1990-10-09|Protein Technologies International, Inc.|Adhesive binders for paper coating composition having improved stability and whiteness|
    US4997682A|1989-07-06|1991-03-05|Protein Technologies International, Inc.|Paper coating composition|
    US6140469A|1993-10-12|2000-10-31|Protein Technologies International, Inc.|Protein isolate having an increased level of isoflavone compounds and process for producing the same|
    US5766331A|1996-10-25|1998-06-16|Protein Technologies International, Inc.|Protein adhesive binder and process for forming a protein adhesive binder|
    CA2489291A1|2002-06-12|2003-12-24|Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.|Vegetable protein preparations and use thereof|
    RU2363234C2|2004-05-07|2009-08-10|Баркон НьютрасайнсКорп.|Protein extraction methods implemented to decrease content of phytic acid|
    US20060073250A1|2004-09-17|2006-04-06|Solae, Llc.|Continuous adsorption process for the preparation of a soy protein-containing composition having improved flavor, odor, appearance, or functionality|
    US20060062889A1|2004-09-17|2006-03-23|Solae, Llc.|Soy protein-containing composition|
    US20090176001A1|2007-12-21|2009-07-09|E.I. Du Pont De Nemours And Company|Soy protein products having altered characteristics|
    CA2805236A1|2010-07-14|2012-01-19|E. I. Du Pont De Nemours And Company|Blended soy protein products with a combined pufa content having altered characteristics|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/073,407|US4309344A|1979-09-07|1979-09-07|Process for the production of a protein isolate having improved whiteness|
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