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5. Caloric availability of polydextrose

Author

Auerbach, Michael H., Craig, Stuart A.S., Howlett, John F., and Hayes, Kenneth C.

Subjects
Polydextrose -- Research, Food/cooking/nutrition
Abstract

Polydextrose is a randomly bonded polysaccharide produced by the bulk melt polycondensation of glucose and sorbitol in vacuo. It has been used as a bulking and texturizing agent and soluble fiber ingredient in many food products worldwide for over two decades. Because of its atypical linkages between glucose moieties, polydextrose resists digestion by mammalian gastrointestinal enzymes. It is minimally absorbed in the small intestine and partially fermented in the large intestine producing volatile fatty acids, with approximately 50% of the ingested dose being excreted undigested. In this it is similar to many other poorly digested soluble fiber ingredients. Numerous energy balance and isotope-label disposition studies have been conducted in animals and man to investigate the caloric availability of polydextrose. The weight of available experimental evidence in the 14 studies described herein shows that polydextrose has a caloric value of approximately 1 kcal/g. Key words: calories, energy balance, isotope label disposition, polydextrose doi: 10.1301/nr.2007.dec.544-549

Published
2007

10. Antioxidants in Experimental Amyloidosis of Young and Old Mice

Author

Meydani, Simin Nikbin, Cathcart, Edgar S., Hopkins, Robert E., Meydani, Mohsen, Hayes, Kenneth C., Blumberg, Jeffry B., Glenner, George G., editor, Osserman, Elliott F., editor, Benditt, Earl P., editor, Calkins, Evan, editor, Cohen, Alan S., editor, and Zucker-Franklin, Dorothea, editor

Published
1986
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15. Positive outcomes of oil palm phenolics on degenerative diseases in animal models

Author

Sambanthamurthi, Ravigadevi, primary, Tan, YewAi, additional, Sundram, Kalyana, additional, Hayes, Kenneth C., additional, Abeywardena, Mahinda, additional, Leow, Soon-Sen, additional, Devi Sekaran, Shamala, additional, Sambandan, T. G., additional, Rha, ChoKyun, additional, Sinskey, Anthony J., additional, Subramaniam, Krishnan, additional, Fairus, Syed, additional, and Basri Wahid, Mohd, additional

Published
2011
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16. Oil palm vegetation liquor: a new source of phenolic bioactives

Author

Sambanthamurthi, Ravigadevi, primary, Tan, YewAi, additional, Sundram, Kalyana, additional, Abeywardena, Mahinda, additional, Sambandan, T. G., additional, Rha, ChoKyun, additional, Sinskey, Anthony J., additional, Subramaniam, Krishnan, additional, Leow, Soon-Sen, additional, Hayes, Kenneth C., additional, and Basri Wahid, Mohd, additional

Published
2011
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19. Book Reviews: For Your Library

Author

Brown, Daniel R., primary, Walton, Raquel M., additional, Russell, Karen E., additional, Emerson, Carol L., additional, Bellinger, Dwight, additional, Marks, Steven L., additional, Speciale, John, additional, Werner, Petra, additional, Hayes, Kenneth C., additional, Line, Scott, additional, Berry, Steven L., additional, Landi, Margaret S., additional, Diehl, Nancy Kate, additional, Colahan, Patrick, additional, Gillis, Carol, additional, Metcalf, Lisa, additional, Schermerhorn, Thomas, additional, Keene, Bruce W., additional, Ekdale, Gregory G., additional, and Kram, Malcolm A., additional

Published
2003
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26. Effects of dietary supplementation of monosodium glutamate on infant monkeys, weanling rats, and suckling mice

Author

Wen, Chi-Pang, Hayes, Kenneth C., and Gershoff, Stanley N.

Abstract

The effects of large dietary supplements of MSG were studied in infant monkeys, weanling rats, and preweanling mice for varying periods of time. Ten infant squirrel monkeys were fed either a 0, 4.8, 9.1, or 16.7%-MSG formula diet for 9 weeks and evaluated clinically and histopathologically. None developed hypothalamic or retinal lesions. Three of the ten squirrel monkeys receiving MSG died, although two deaths appeared unrelated to treatment. The growth of the surviving monkey receiving the largest supplement of MSG was retarded, but a battery of clinical examinations was unremarkable in any of the surviving monkeys. Feeding the 9.1% MSG formula for 1 year to an infant cynomolgus and another infant bushbaby monkey had no effect when compared with two control monkeys. The intramuscular injection of 2.7 mg MSG/g body wt into a 3-week-old cynomolgus monkey produced marked elevation in circulating glutamate and vomiting but has had no demonstrable deleterious effect during the subsequent 2.5 years.Groups of weanling rats were fed high levels of MSG or isocaloric, isonitrogenous, or isonatrogenous control diets. The growth depression observed in rats fed MSG diets appeared to reflect sodium intake more than glutamic acid consumption. Dietary sodium content was also a factor in kidney size, water consumption, urinary pH, and plasma glutamate concentration. No conclusive endocrine effect was found.Infant mice dosed with varying levels of MSG from 6 through 10 days of age did not have hypothalamic lesions when killed on the 11th day. In a similar experiment in which the mice were allowed to live, approximately one-third died within 30 days. The high mortality was thought to be a function of the sodium content or osmolarity of the MSG administered. The surviving mice were raised for 1 year without developing hyperphagia, obesity, or hyperactivity.The relative lack of toxicity of MSG in these studies when compared with previous reports is believed to be related to the route of administration, as MSG was neither injected nor force-fed to fasted animals but offered as a supplement to an otherwise normal diet.

Published
1973
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