摘要:
A method is provided for preparing or extracting amino acids, in particular L-amino acids such as L-lysine and L-methionine from manure. Manure of domestic farm animals is inoculted with bacteria which are capable of producing the amino acids mentioned. The bacteria are allowed to grow in the manure and the reaction mixture is worked up after the fermentation.
摘要:
Novel methods and novel industrial unicellular microorganism strains, particularly industrial Bacillus strains, are provided for enhanced production of endogenous and exogenous polypeptides. Cloning vehicles containing one or more copies of the gene expressing the polypeptide of interest are introduced into a compatible host, the transformed hosts treated to form protoplasts and then fused with protoplast acceptors prepared from industrial strains. Efficient transfer of the vehicle containing the genes of interest is achieved, with the resulting modified industrial strains being effective producers of the desired polypeptide product.
摘要:
Organic waste material, which contains at least a substantial part of manure is treated by i - separating the organic material in a fraction (A) mainly consisting of the soluble part of said material such as compounds of potassium and nitrogen in solubilized form and a fraction (B) mainly consisting of the (less soluble or) insoluble part of said material such as compounds of P, Ca, and nitrogen in the organic form; ii - sterilizing or pasteurizing fraction (B), followed by an anaerobic fermentation using one or more selected species of microoganisms to, at least partly solubilizing fraction (B) to form a fraction (C) which comprises an increased amount of solubilized nitrogen and a decreased amount of insoluble nitrogen compounds; and iii - wherein fraction (C) is separated into a fraction (D) mainly comprising the soluble compounds such as compounds of nitrogen and into a fraction (E) mainly comprising the insoluble compounds such as compounds of P and Ca.
摘要:
Organic waste material, which contains at least a substantial part of manure is treated by
i - separating the organic material in a fraction (A) mainly consisting of the soluble part of said material such as compounds of potassium and nitrogen in solubilized form and a fraction (B) mainly consisting of the (less soluble or) insoluble part of said material such as compounds of P, Ca, and nitrogen in the organic form; ii - sterilizing or pasteurizing fraction (B), followed by an anaerobic fermentation using one or more selected species of microoganisms to, at least partly solubilizing fraction (B) to form a fraction (C) which comprises an increased amount of solubilized nitrogen and a decreased amount of insoluble nitrogen compounds; and iii - wherein fraction (C) is separated into a fraction (D) mainly comprising the soluble compounds such as compounds of nitrogen and into a fraction (E) mainly comprising the insoluble compounds such as compounds of P and Ca.
摘要:
Process for the preparation of oligosaccharides-containing products from biomass involving the use of hydrochloric acid for partly hydrolysing biomass to easily fermentable oligosaccharides-containing products and easy recovery of the hydrochloric acid and the oligosaccharides containing products. The oligosaccharides-containing products themselves and use of the latter for the preparation of useful products like ethanol and penicillin by fermentation.
摘要:
Process for the preparation of oligosaccharides-containing products from biomass involving the use of hydrochloric acid for partly hydrolysing biomass to easily fermentable oligosaccharides-containing products and easy recovery of the hydrochloric acid and the oligosaccharides containing products. The oligosaccharides-containing products themselves and use of the latter for the preparation of useful products like ethanol and penicillin by fermentation.