PATENT ABSTRACTS
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Agricultural waste material, including animal manure and crop wastes, are converted into proteinaceous animal feed products by a fermentation process using the ['ungus, Chaetomium cellulolyticum. 4526792 PROCESS OF PRODUCING A COAGULANT COMPOSITION FOR CHEESE PRODUCTION Georges Granday, Marcel Jeandot, Beaune, France assigned to S A Presure G r a n d a y A coagulant composition for the cheese industry, whose purpose is to coagulate milk in the preparation of cheeses, is produced by mixing a first coagulant enzyme of fungic origin and noncoagulant proteic extracts from bovine reed. The composition may also contain a second proteolytic enzyme, extracted from another microbial strain or from bovine pepsin.
4528198 PREPARATION OF LOW CALORIE BEER WITH MALT EXTRACT FREE OF YEAST LETHAL FACTORS Robert Mizerak, Geoffrey H Bertkau, William Line, Etzer Chicoye assigned to Miller Brewing Company An aqueous extract containing alpha-l,6 and alpha- 1,4 carbohydrases obtained from diastatic malt is treated with an adsorbent to remove yeast lethal factors and can be used to produce a superattenuated low calorie beer. The enzymecontaining extract preferably is introduced into a pitched aerated wort during fermentation. Crude aqueous extracts of diastatic malt cannot be used because they contain factors lethal to yeast which adversely affects the yeast viability throughout the fermentation.
4528199 SILAGE PRODUCTION FROM FERMENTABLE FORAGES Nancy J Moon, Lane Ely, E Sudweeks assigned to University of Georgia Research Foundation Inc
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A method for the production of silage from a t~:rmentable l\)rage substrate by admixing Lactobacillus plantarum 2B bacteria with a fermentable forage substrate. The bacteria is added m an amount effective to lower the pH oftbe forage substrate 1o a pH at which the fermemable forage is stabilized and rendered substantially free of butyric acid producing bacteria.
4528269 METHOD FOR PRODUCING SINGLE AND]OR MIXED STRAIN CONCENTRATES OF BACTERIA William Sandine. Alan R ttuggins assigned to The State of Oregon by and through the Oregon State Board of Higher Education on behalf of Oregon Stale University An improved method which differentiates or separates heterogeneous populations of fast and slow acid producing strains of bacteria by growth of the strains under closely controlled unique conditions so as to allow the selection of a colony of one or the other strains is described. Preferably a gelled, solid growth medium containing in admixture: (1) milk protein, a milk protein derivative, or a milk protein substitute; (2) an acid pH sensitive color change indicator; and. (3) a buffering agent is used. The colonies have a contrasting color within and around them because of the effect of the acid produced by the bacteria on the indicator. The growth of the bacteria is under anaerobic or near anaerobic conditions in order to achieve certainty in the colony selection for fast or slow acid production. The bacteria can also be mixed with phage which inhibit or kill the members of a heterogeneous or homogeneous population of bacteria on the medium and grown to produce phage resistant colonies. The relatively large colonies which exhibit enhanced acid production and proteolysis of the milk protein on the plating container are selected for commercial use in preparing fermented products, particularly fermented foods.
4528273 MICROORGANISM STRAINS FOR THE FERMENTATIVE PREPARATION OF L--SERINE Gerald G Lo~inger, Susan A Whitehead assigned to W R Grace & Co A method for improving a strain of microorganisms capable of converting glycine to Lserine by selecting for strain-improving mutations such that the improved strain is serine dehydratase negative and is resistant to at least one of the amino acid analogs serine hydroxamate, glycine hydroxamate or methionine hydroxamate.