A nutrient medium is presented for the cultivation of microorganisms. The nutrient medium is used in the determination of activity of a therapeutically-active substance against an infective microorganism.
An adduct of menadione and thiamine is described having the general formula C.sub.34 H.sub.36 N.sub.4 O.sub.11 S.sub.3, molecular weight 772.84 and containing the components in a molecular ratio of 2:1 respectively. This adduct is particularly intended to be added to integrator mixtures for zootechny.
The present invention provides a composition preferably a pet foodstuff comprising pantothenic acid, nicotinamide, histidine, inositol and choline wherein pantothenic acid is provided at a level of 10 mg to 500 mg per 400 kcal per day, its use in the treatment of a skin disorder and methods of controlling a skin disorder. The invention further provides a method of manufacturing a composition of the invention.
Bulk starter media for making cheese is prepared having internal pH control by providing in conventional starter media an amount of magnesium ammonium phosphate sufficient to maintain a pH of at least 5 for at least 20 hours during fermentation to produce a cultured bulk starter. The magnesium ammonium phosphate is less than 50% soluble at a pH of from 6 to about 7.5 of the starter media prior to fermentation. The starter media preferably contains an alkali metal tripolyphospate phage control agent, and may contain sweet whey and autolyzed yeast.
Media and kits are disclosed for use in processes requiring microbial culture. More specifically, the invention provides carrageenan-stabilized agar-based microbial culture media and kits constructed using the media. The media and kits of the invention may allow the construction of kits with increased shelf stability and useful life. Further, the media and kits of the invention may be used in kits and methods useful in the manual determination of the type of infection present in a specimen in periods of about 24 hours. The stabilized culture media of the invention are useful in a broad variety of applications. In an embodiment, the media contains both an agar medium and iota carrageenan.
