The pancreatic substance containing insulin1 used in the experiments recorded below was prepared from the pancreas of hogs according to the method developed2 by Mr. George B. Walden of the Lilly Research Laboratories, and which has been published by the Council of Pharmacy and Chemistry of the American Medical Association.3 This experiment, which is an extension of Mr. Walden’s work, was starte...

1. Fibroblasts and epithelial cells in pure culture obtain the nitrogen, which they build into protoplasm, from proteoses and possibly other primary derivatives of proteins. These proteoses have been prepared from embryo tissues, egg white, commercial fibrin, rabbit brain, Witte's peptone, etc. 2. The presence in embryo juice of a hormone that stimulates cell division is improbable. 3. Proteose...

Protein interations are presently required to understand the mechanisms of in vitro maturation, fertilization and culture of sheep embryoes through in silico analysis. The present work has been conducted on TCM-199 supplemented with epidermal growth factor (EGF), fetal bovine serum (FBS) or wheat peptones The maturation rate of oocyte was significantly higher in the FBS supplemented group when ...

1. Both normal and sarcomatous fibroblasts of the rat utilize many different fragments of the protein molecule for their growth in vitro. Alpha and beta proteoses have approximately equal growth-promoting power. 2. A mixture of peptones, peptides, and amino acids, containing a negligible quantity of proteose, produces a temporary proliferation of normal fibroblasts, and an unlimited multiplicat...

A supplemented 2% peptone broth is described for the detection of indole production by Pasteurella multocida. The 96 isolates of P. multocida that were utilized in this evaluation were indole positive within 18 to 24 h.

The decolorization of molasses by 17 different fungi in 2 media was studied. Trichoderma viride showed the highest decolorization yield (53.5%) when cultivated at 30ºC for 7 days in Medium 1 which contained the molasses which was diluted to 40 g/L in distilled water. The other Trichoderma species and Penicillium sp. also gave similar results of 40-45%. Decolorization yield was increased by addi...