Abstract
We have shown previously that sorghum is highly digestible in the rat. However, other workers have shown that sorghum is much less digestible than wheat, maize, and rice in young children. Because the rat does not show these digestibility differences, we developed an empirical pepsin digestion method, first reported in 1981, which simulates the digestion values found in children. In this report the method has been improved and used to analyze wheat, maize, rice, millet, and sorghum and certain processed samples of millet and sorghum. The pepsin digestion values parallel those found in children for wheat, maize, rice, and sorghum. In addition, a processed sorghum product that gave a high digestion value in children also gave a high value with the in vitro pepsin method.
Keywords: improved pepsin assay, processing effects, temperature effects
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Selected References
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- Axtell J. D., Kirleis A. W., Hassen M. M., D'Croz Mason N., Mertz E. T., Munck L. Digestibility of sorghum proteins. Proc Natl Acad Sci U S A. 1981 Mar;78(3):1333–1335. doi: 10.1073/pnas.78.3.1333. [DOI] [PMC free article] [PubMed] [Google Scholar]
- KURIEN P. P., NARAYANARAO M., SWAMINATHAN M., SUBRAHMANYAN V. The metabolism of nitrogen, calcium and phosphorus in undernourished children. 6. The effect of partial or complete replacement of rice in por vegetarian diets by kaffir corn (Sorghum vulgare). Br J Nutr. 1960;14:339–345. doi: 10.1079/bjn19600044. [DOI] [PubMed] [Google Scholar]
- MacLean W. C., Jr, López de Romaña G., Gastañaduy A., Graham G. G. The effect of decortication and extrusion on the digestibility of sorghum by preschool children. J Nutr. 1983 Oct;113(10):2071–2077. doi: 10.1093/jn/113.10.2071. [DOI] [PubMed] [Google Scholar]
- MacLeon W. C., Jr, Lopez de Romaña G., Placko R. P., Graham G. G. Protein quality and digestibility of sorghum in preschool children: balance studies and plasma free amino acids. J Nutr. 1981 Nov;111(11):1928–1936. doi: 10.1093/jn/111.11.1928. [DOI] [PubMed] [Google Scholar]