Toxicants Occurring Naturally in Foods. (1966) / Chapter Skim
Currently Skimming:
Pages 232-252
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 233... ...
AMINO ACIDS 223 TABLE 2 Amino Acid Requirements of 10-kg Child and Approxi- mate Amounts of Individual Amino Acids Obtained from 1,100 Calories of Foodstuffs of Animal or Vegetable Origin AMOUNT IN 1,100 CALORIES OF REQUIREMENT® FOR 10-kg ROUND PEAS AND WHOLE CHILD STEAK?
|
From page 235... ...
AMINO ACIDS 225 It is evident from Table 1 that when adult man is existing on round steak (a diet that should result in close to maximal protein intake for this species) , he is consuming some nine to eighteen times the amount of sulfur-containing amino acids that he requires.
|
From page 237... ...
AMINO ACIDS 227 in mental patients.! 8 Although these substances have not proven to be of particular therapeutic value, the testing of them has provided some information about the effects of ingestion of large amounts of a few amino acids.
|
From page 239... ...
GEORGE K DAVIS Toxicity of the Essential Minerals Since man is one of the end points in the food chain, he enjoys a certain degree of protection from deficiencies and toxicities that might result from variations in the levels of mineral elements in his food.
|
From page 240... ...
230 GEORGE K DAVIS the accumulation of copper residues in foodstuffs.
|
From page 241... ...
MINERALS 231 possibility that certain pathological conditions may occur in which tissue accumulation of iron might be augmented by the intake of food- stuffs containing high levels of this element. Since human diets are not low in phosphate if cereal grains or animal products are consumed, the interference of iron with phosphorus metabolism, which may occur in animals with low phosphorus intakes, is not a likely occurrence in man.
|
From page 242... ...
232 GEORGE K DAVIS However, it should be immediately pointed out that the amount of cobalt present in foods is extremely small, and the element appears to be utilized nutritionally only as a component of vitamin Biz.
|
From page 243... ...
MINERALS 233 There is considerable evidence that man and other animals readily adjust to varying levels of calcium intake with consequent variation in the efficiency of calcium absorption and utilization.43 -- 28 Since there is rapid adjustment to variations in level of calcium intake, adverse effects of excessive intakes of calcium appear to be restricted to the influence of calcium upon the utilization of other nutrients. There are reports in the literature that high levels of calcium in the diet, due to the addition of calcium compounds as supplements to the diet, may interfere with the utilization of phosphorus if the ratio of calcium to phosphorus is wide.
|
From page 244... ...
234 GEORGE K DAVIS Although magnesium compounds are frequently used therapeutically for man, a situation comparable to that in animals, where dolomite may be used as a replacement for limestone as a supplement in the diet, has not been reported.
|
From page 247... ...
FOOD FATS 237 The toxicity of this type of fatty acid stems from its metabolic con- version into 8-fluoroacetic acid and to fluorocitrate which then inhibits the reactions of the tricarboxylic acid cycle, resulting in the accumula- tion of citric acid in the tissues. Although this substance is not normally present in the human diet, it has been responsible for considerable damage to livestock.
|
From page 249... ...
FOOD FATS 239 diet, a peroxide number (PN) of 100 (milliequivalents of peroxide oxygen per kilogram of oil)
|
From page 252... ...
EDWARD EAGLE Gossypol Cottonseed, a waste product of cotton production for several thousand years, has been a source of cottonseed oil and cottonseed meal in the United States since the latter part of the nineteenth century. In 1861, Kuhlmann!
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.