This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 Excerpt: ... converted into ammonia. The Undetermined Nitrogen of Protein Hydrolysis. The nitrogen of the protein, other than the amide and the basic nitrogen, largely exists, so far as is now known, in the form of o-aminoacids. It is not probable that all of the decomposition products of the proteins are yet known, for attempts ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 Excerpt: ... converted into ammonia. The Undetermined Nitrogen of Protein Hydrolysis. The nitrogen of the protein, other than the amide and the basic nitrogen, largely exists, so far as is now known, in the form of o-aminoacids. It is not probable that all of the decomposition products of the proteins are yet known, for attempts to determine the amount of each of the known substances has in no case given a result which did not fall far short of the total of the protein. A considerable part of this deficit is doubtless made up of the known substances that are determined, for losses necessarily occur in the processes of isolating and separating them cf. Osborne and Heyl (360). This loss, however, probably does not account for all of the unknown residue. If it is assumed that the amino-acids that are found in a well-conducted analysis of the decomposition products of a protein are united in the molecule with the elimination of water, and that the dibasic acids are united to an amide group which replaces one hydroxyl, and the sum of the percentages of these radicals is subtracted from 100, the percentage of the unknown residue can be obtained. If the nitrogen unaccounted for in the same analysis is calculated as per cent, of this unknown residue, it is found that in the case of gliadin this unknown part contains 133, in excelsin i4-o, and in legumin 143 per cent, of nitrogen. Among the known decomposition products of the proteins this percentage of nitrogen is equalled only by glycocoll, alanine, tryptophane and serine, even if the calculation is made for the radicals of the monoamino-acids in polypeptide union, that is, after subtracting one molecule of water from their molecular weights. In making this calculation no account is taken of the fact that the amount of the am...
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Add this copy of The Vegetable Proteins to cart. $30.90, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2023 by Legare Street Press.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Vegetable Proteins to cart. $34.49, new condition, Sold by Paperbackshop International rated 4.0 out of 5 stars, ships from Fairford, GLOS, UNITED KINGDOM, published 2023 by Legare Street Press.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Vegetable Proteins to cart. $35.58, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2023 by Legare Street Press.
Add this copy of The Vegetable Proteins to cart. $30.92, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2010 by Kessinger Publishing.
Add this copy of The Vegetable Proteins to cart. $59.74, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2010 by Kessinger Publishing.
Add this copy of The Vegetable Proteins to cart. $28.55, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2007 by Kessinger Publishing.
