ISSN:0022-5142    

DOI:10.1002/jsfa.2740150601

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY

摘要:

Abstract‘Scorch’ is produced on grass swards by aqueous solutions containing 0.2% or more of ammonium thiocyanate. This ‘scorch’ merges into severe injury to the grass at a concentration of 0.4%, the effect lasting up to

ISSN:0022-5142    

DOI:10.1002/jsfa.2740150602

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY

摘要:

AbstractScotch distiller's feeds, by chemical and vitamin analyses, are generally similar to the feeds recovered by the U.S. grain distilling industry. Both Scotch and bourbon distiller's feeds gave equal or better growth as replacements for brewer's yeast, dried skim milk and fish meal in a practical broiler diet. Evidence for the presence of one or more unidentified growth factors in distiller's dried grains, distiller's dried grains with solubles and distiller's dried solubles from both Scotch and bourbon production was obtained by use of a semipurified ration.

ISSN:0022-5142    

DOI:10.1002/jsfa.2740150603

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY

摘要:

AbstractA process for the preparation of precooked roller‐dried protein foods based on full‐fat soya flour and a 1:1 blend of full‐fat soya flour and low‐fat groundnut flour and fortified with DL‐methionine and certain vitamins and minerals, is described. The foods when mixed with warm water formed good porridge which was acceptable to weaned infants, pre‐school children and adults. They were free fromEsch. coli, Salmonellaand pathogenic anaerobes and the total count per g. ranged from 19,000 to 23,000. Both the foods, when packed in hermetically sealed tin containers kept well for 9 months at 37°, the losses of thiamine and vitamin A in that time being 13–18% and 20–24% respectively. One ounce of the product costing about Id. provides about one‐third of the daily requirements of protein, certain vitamins and minerals of weaned infants and p

ISSN:0022-5142    

DOI:10.1002/jsfa.2740150604

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY

摘要:

AbstractThe protein efficiency ratio (PER) and supplementary value to a poor Indian rice diet of precooked roller‐dried protein foods based on full‐fat soya flour and a I : I blend of full‐fat soya flour and low‐fat groundnut flour respectively and fortified with DL‐methionine and certain vitamins and minerals, have been studied using weanling albino rats. The PER of the foods were 2.25 and 1.92 respectively as compared with 3.09 for skim milk powder. Fortification of the foods with DL‐methionine (1.6 g. per 100 g. of protein) improved significantly the PER to 2.99 and 2.52 respectively. Supplementation of a poor rice diet with the above foods to provide about 2.5% extra protein in the diet resulted in a highly significant increase in the growth of rats. No significant differences were observed in the mean protein contents of the carcasses or livers of rats receiving the protein foods or skim milk powder. The livers of rats fed on diets containing the protein foods were quite normal, while those of rats fed on the rice diet showed mild parenchymal damage of protein deficiency type and mild fatty infiltration. Large‐scale production and use of fortified protein foods based on soya and groundnut flours will help effectively in overcoming the incidence of protein malnutrition among young children in develop

ISSN:0022-5142    

DOI:10.1002/jsfa.2740150605

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY

摘要:

AbstractPrevious results are confirmed. There are high concentrations of minerals in the outer 0.5 mm., a fall to minimum values in the outer cortex, and then again higher values in the core region of apples. Relative to the rest of the tissue, magnesium, calcium and nitrogen are in very high concentration in the peel.If the peel is excluded, alcohol‐soluble matter (which is mainly sugar) and starch are the only fractions which showed a steady decrease in concentration from outside to inside.There were no obvious differences in the distribution patterns between two samples of apples with different keeping qualities.Apart from a considerable loss of free acid from the peel, there were no great changes in concentration patterns after storage for about 10 weeks at 0°.It is concluded that there will be inaccuracies if it is assumed that analysis of portions of tissue will give the same results as analysis of the whole fru

ISSN:0022-5142    

DOI:10.1002/jsfa.2740150606

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY

摘要:

AbstractThe contribution of α‐ and β‐amylases to the production of sugars fermentable in bread fermentation has been followed by measuring the gassing power of pregelatinised wheat starch mixed with a buffered solution of yeast nutrients and a yeast suspension. After crystalline amylases were added, β‐amylase contributed at least 10 times more fermentable sugars than equal amounts of bacterial, pancreatic or fungal amylases. Among the α‐amylases, the enzyme of bacterial origin was the most potent; the fungal, the least; and the pancreatic, intermediate. Mixtures of α‐ and β‐amylases gave fermentable sugars in amounts slightly smaller than calculated. Mixtures of crude preparations from cereals showed a response to β‐amylase, provided the plant α‐amyla

ISSN:0022-5142    

DOI:10.1002/jsfa.2740150607

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY

摘要:

AbstractA rapid method for the analysis of pyrethrum extract and pyrethrum formulations containing synergists and emulsifying agents has been developed. The pyrethrins are converted into their 2,4‐dinitrophenylhydrazones and,without chromatography, the optical density at 377 mpdetermined. The optical density is converted into pyrethrin concentration by using the value ϵ = 28,000 for the molecular extinction coefficient of the pyrethrin dinitrophenylhydrazon

ISSN:0022-5142    

DOI:10.1002/jsfa.2740150608

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY

摘要:

AbstractA simple method involving a single extraction procedure is given for the determination of water‐soluble carbohydrates (sugars + fructosans) in grasses. Factors such as storage of grass samples and clarification, hydrolysis and storage of extracts are discussed. The method is likely to have a routine application in silage studies where a measure of fermentable carbohydrates is require

ISSN:0022-5142    

DOI:10.1002/jsfa.2740150609

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY

摘要:

AbstractThe effect of cod liver oil on rats fed on an unsaturated fatty acid‐deficient diet has been studied. Many of the symptoms of such rats, such as loss of weight, sterility and elevated triene to tetraene fatty acid ratio of the depot fat, are cured by cod liver oil despite the fact that its fatty acids are primarily of the linolenic type. Certain other conditions of the rats, such as dermal symptoms and viability of the young, were not cured by the level of cod liver oil being fed.The rats used in these experiments were also hypercholesterolaemic and the effectiveness of cod liver oil, its ethyl ester and a fraction with high iodine value from it were compared with maize oil in their effectiveness in reducing their serum cholesterol levels. The effectiveness of these oils appeared to be approximately proportional to the number of methylene‐interrupted double bonds of diene unsaturation and upwards present in the fatty acids irrespective of whether the fatty acids were of the linoleic or linolenic ty

ISSN:0022-5142    

DOI:10.1002/jsfa.2740150610

出版商:John Wiley&Sons, Ltd    

年代:1964

数据来源: WILEY