Title
Comparative methodologies for measuring metabolizable energy of various types of resistant high amylose corn starch
Author
Tulley, R.T.
Appel, M.J.
Enos, T.G.
Hegsted, M.
Mccutcheon, K.L.
Zhou, J.
Raggio, A.M.
Jeffcoat, R.
Birkett, A.
Martin, R.J.
Keenan, M.J.
TNO Kwaliteit van Leven
Publication year
2009
Abstract
Energy values of high amylose corn starches high in resistant starch (RS) were determined in vivo by two different methodologies. In one study, energy values were determined according to growth relative to glucose-based diets in rats fed diets containing RS2, heat-treated RS2 (RS2-HT), RS3, and amylase predigested versions to isolate the RS component. Net metabolizable energy values ranged from 2.68 to 3.06 kcal/g for the RS starches, and 1.91-2.53 kcal/g for the amylase predigested versions. In a second study, rats were fed a diet containing RS2-HT and the metabolizable energy value was determined by bomb calorimetry. The metabolizable energy value was 2.80 kcal/g, consistent with Study 1. Thus, high amylose corn based RS ingredients and their amylase predigested equivalents have energy values approximately 65-78% and 47-62% of available starch (Atwater factor), respectively, according to the RS type (Garcia, T. A.; McCutcheon, K. L.; Francis, A. R.; Keenan, M. J.; O'Neil, C. E.; Martin, R. J.; Hegsted, M. The effects of resistant starch on gastrointestinal organs and fecal output in rats. FASEB J. 2003, 17, A335). ©2009 American Chemical Society.
Subject
Nutrition
Toxicology and Applied Pharmacology
Digestible energy
High amylose cornstarch
Metabolizable energy
Net metabolizable energy
Rats
Resistant starch
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http://resolver.tudelft.nl/uuid:94c81d73-9a9b-4a97-a577-327ba0d5d9cb
DOI
https://doi.org/10.1021/jf900971c
TNO identifier
241972
ISSN
0021-8561
Source
Journal of Agricultural and Food Chemistry, 57 (18), 8474-8479
Document type
article