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    Extraction of undesirable flavor and odor components from microbial cells
    2.
    发明授权
    Extraction of undesirable flavor and odor components from microbial cells 失效
    从微生物细胞中提取不需要的风味和气味成分

    公开(公告)号：US3891772A

    公开(公告)日：1975-06-24

    申请号：US46667374

    申请日：1974-05-03

    Applicant: STANDARD OIL CO

    Inventor： RIDGWAY JR JOHN A ,  CHAO KWEI C

    IPC: A23J1/00 ,  A23J1/18 ,  C12N1/00 ,  C12C11/28 ,  C12C11/30

    CPC classification number: C12N1/005 ,  A23J1/008 ,  A23J1/18 ,  Y10S435/803 ,  Y10S435/804

    Abstract: Microbial cells having a bland taste and improved odor characteristics for use in food preparations are prepared by solvent extraction. The process involves drying microbial cells after separation from a fermentation broth to a moisture content of 8 percent or less, extracting the dried cells with an aqueous alcoholic solvent containing 60 to 80 vol percent of an aliphatic alcohol having 1 to 3 carbon atoms per molecule, separating the solvent from the cells and drying the cells to yield a substantially solvent-free product. The dried product can be further treated by grinding, wetting with water and re-drying.

    Abstract translation: 通过溶剂萃取制备用于食品制剂的具有温和味道和改善的气味特性的微生物细胞。 该方法包括将发酵液分离后的微生物细胞干燥至含水量为8％以下，用每分子含有60〜80体积％碳原子数为1〜3的脂肪醇的含水醇溶剂萃取干燥后的细胞， 将溶剂与细胞分离并干燥细胞以产生基本上无溶剂的产物。 干燥的产品可以通过研磨，用水润湿和再干燥进一步处理。

    Treatment of protein - containing microbial cells to remove undesirable flavor and odor substances
    3.
    发明授权
    Treatment of protein - containing microbial cells to remove undesirable flavor and odor substances 失效
    处理含蛋白质的微生物细胞以去除不需要的味道和气味物质

    公开(公告)号：US3885050A

    公开(公告)日：1975-05-20

    申请号：US44224774

    申请日：1974-02-13

    Applicant: STANDARD OIL CO

    Inventor： RIDGWAY JR JOHN A ,  CHAO KWEI C

    IPC: C12N1/00 ,  C12C11/18 ,  A23J1/18 ,  C12C11/30

    CPC classification number: C12N1/005 ,  Y10S435/803 ,  Y10S435/804

    Abstract: Protein-containing microbial cells are treated to remove undesirable flavor and odor substances by a process involving heat-killing the cells, drying the cells, extracting the dried cells with an aqueous alcoholic solution containing 60 to 80 vol. percent of an alcohol such as ethanol, filtering to separate the extracted microbial cells from the aqueous alcoholic solution and drying the extracted microbial cells to provide substantially solvent-free microbial cells.

    Abstract translation: 处理含蛋白质的微生物细胞以通过包括热杀死细胞，干燥细胞，用含有60至80体积％的含水醇溶液提取干燥细胞的方法除去不期望的风味和气味物质。 百分比的醇如乙醇，过滤以将提取的微生物细胞与醇水溶液分离，并干燥提取的微生物细胞以提供基本上无溶剂的微生物细胞。

    4.
    发明专利
    未知

    公开(公告)号：DE2735877A1

    公开(公告)日：1978-02-23

    申请号：DE2735877

    申请日：1977-08-09

    Applicant: STANDARD OIL CO

    Inventor： CHAO KWEI C

    IPC: A23J1/18 ,  C12N1/00 ,  C12N1/16 ,  C12N1/32 ,  C12P21/00

    Abstract: Isolating protein from yeast cells by alkaline extraction is enhanced by growing a continuous culture of yeasts at the lowest possible dilution rate (space velocity) where the cell yield is not significantly affected and/or by aging the continuous yeast culture in a second stage of continuous fermentation having a residence time from 2 to 4 hours and a pH of from 4 to 10.

    PROCESS FOR PREPARING FUNCTIONAL YEAST PROTEINS
    6.
    发明专利
    PROCESS FOR PREPARING FUNCTIONAL YEAST PROTEINS 未知

    公开(公告)号：CA1087445A

    公开(公告)日：1980-10-14

    申请号：CA283101

    申请日：1977-07-19

    Applicant: STANDARD OIL CO

    Inventor： CHAO KWEI C

    IPC: A23J1/18 ,  C12N1/00 ,  C12N1/16 ,  C12P21/00

    Abstract: PROCESS FOR PREPARING FUNCTIONAL YEAST PROTEINS Functional yeast protein products with good thermogelability, emulsification capacity, foaming ability, solubility, and whippability are prepared by an alkali extraction of whole yeast cells preceded by a hot water extraction and/or a dilute alkaline extraction. These products are good substitutes for either casein, sodium caseinate, or egg white, and can also be used in making stabilized acidic protein beverages.

    ENZYMIC DEGRADATION OF NUCLEIC ACIDS IN SCP MATERIALS
    9.
    发明专利
    ENZYMIC DEGRADATION OF NUCLEIC ACIDS IN SCP MATERIALS 未知

    公开(公告)号：CA991473A

    公开(公告)日：1976-06-22

    申请号：CA135153

    申请日：1972-02-21

    Applicant: STANDARD OIL CO

    Inventor： CHAO KWEI C

    IPC: A23J3/20 ,  C12N1/08

    Abstract: 1376781 Single cell protein STANDARD OIL CO 21 Feb 1972 [22 Feb 1971] 7960/72 Heading C6F A gas containing molecular O 2 is passed into an aq. cell concentrate of a single cell protein material containing 5-15 wt per cent cells for 1-3 hours, at 50-55‹C and 5.0-5.5 pH (by addition of Acetic acid or HCl as required) to reduce the nucleic acid content of the material. The material may be subjected to preliminary physiological conditioning by passing the gas through the concentrate at 30‹C and pH not below 4 until the pH begins to rise spontaneously, and this may be followed by a shock treatment during which the temperature is reduced to 0‹C for about 15 mins. The cell cream preferably comprises about 10 wt per cent cells.

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