Preparation of bacteria cultures tolerant to metal ions
Patent 4432998 Issued on February 21, 1984. Estimated Expiration Date: 
September 3, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 3, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3343962 3354049 3497359 3843801 3900572 3914438 Starter culture media containing whey Method of culturing Lactobacillus acidophilus Patent #: 4349569 InventorAssigneeApplicationNo. 06/414817 filed on 09/03/1982US Classes:435/170, Using bacteria426/34, Of milk or milk product426/43, Including addition of bacterial culture426/807, POULTRY OR RUMINANT FEED435/245, Adaptation or attenuation of cells435/34, Determining presence or kind of micro-organism; use of selective media435/853, Lactobacillus435/854, Lactobacillus acidophilus435/857, Lactobacillus plantarum435/885StreptococcusExaminersPrimary: Naff, David M.Attorney, Agent or FirmInternational ClassesA23C 9/12 (20060101)A23C 9/123 (20060101) C12N 1/36 (20060101) C12N 1/20 (20060101) AbstractLactobacillus and Streptococcus are cultured by special process steps to derive by controlled transmutation a strain of organisms having high tolerance to acidity above 1.5%, and are tolerant to metallic salts such as cobalt carbonate which tend to poison such organisms by limiting growth. The organisms are cultured in a transfer process from starter organisms that tend to clump in the presence of metallic ions to develop the improved strain which does not clump when cultured in the presence of metallic salts thereby permitting increased production. A characterizing feature of the resulting transmuted organisms therefore is the freedom of a tendency to clump in the presence of the cobalt ion, a feature uncharacteristic of the starting organisms. The organisms are useful for enhancing animal and plant growth.Other References
Field of SearchOf milk or milk productPreparation or treatment of cheese curd or cheese Including addition of acid or acidic material Treatment of whey Including addition of bacterial culture DORMANT FERMENT CONTAINING PRODUCT, OR LIVE MICROORGANISM CONTAINING PRODUCT OR ONGOING FERMENTING PRODUCT, PROCESS OF PREPARATION OR TREATMENT THEREOF |
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