Abstract: Bacterial concentrates of cells of a Lactobacillus having the essential identifying characteristics of Lactobacillus sp. NRRL-B-15,036 which are useful for food fermentations are described. Lactobacillus sp. NRRL-B-15,036 ferments dextrose, but not sucrose or lactose, to produce lactic acid in the food. Lactobacillus sp. NRRL-B-15,036 is particularly useful for meat fermentations.

Abstract: This disclosure relates to a method for the quantitative in vitro determination of terminal deoxynucleotidyl transferase in human blood extracts, bone marrow extracts and lymphocyte extracts and wherein the terminal deoxynucleotidyl transferase is extracted with an extractant containing a nonionic surfactant, an anticoagulant and a reducing agent.

Abstract: A method is described for producing fermented foods by generating lactic acid in the food using a culture of a lactobacillus similar to Lactobacillus casei subspecies alactosus NRRL-B-12,344 and a stimulatory food grade metal salt, wherein the culture has unique rapid low temperature fermentation characteristics and wherein lactose, glycogen, and starch are not fermented by the culture. The preferred Lactobacillus casei subspecies alactosus is NRRL-B-12,344 or strains having low temperature food fermentation characteristics in common with this strain. In order to provide rapid fermentation, the stimulatory, food grade metal salt, usually a manganese salt, is provided in the food or the culture which is added to the food with the selected lactobacillus to accelerate fermentation. The cultures are particularly suited for the controlled fermentation of carbohydrates, naturally present in or added to the food to provide a selected final pH.

Abstract: A method of culturing microbes which belong to the genus Bordetella characterized by adding cyclodextrin or its derivative to the culture medium used for cultivating microbes belonging to the genus Bordetella and a culture medium therefor.

Abstract: A tissue culture cluster dish having a multi-well base and detached cover. The cover may be mounted on the base in a partially open position to provide access to the wells by a pipette or other instrument operated by the user while the cover acts as a shield against airborne contaminants.

Abstract: Method for producing methane by first heating and mixing an organic substrate to 70.degree. C. and cooling same with fresh substrate to 50.degree.-60.degree. C. in an antechamber, transferring same to a processing chamber in the presence of methane-producing anaerobic microorganisms and therein cultivating the substrate under anaerobic conditions to produce methane.

Abstract: A photochemical reactor is divided into a first section suitable for containing a volume of fluid to be reacted and a second section having at least one light transmitting wall. A porous, high area, fiber webbing is mounted within the reactor so that at least a portion of the webbing is immersed in the fluid. The webbing is moved within the reactor so that the webbing is sequentially immersed in the fluid contained in the first reactor section and then moved to the second reactor section whereat the fluid attached to the webbing is exposed to light transmitted through the light transmitting wall.