Journal
FOOD CHEMISTRY
Volume 102, Issue 4, Pages 1034-1041Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2006.06.039
Keywords
common beans; soaking; cooking; chemical changes; texture prediction in cooked beans
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Organoleptic qualities are an important factor in the market value of legumes, especially in developed countries. Unfortunately, the molecules that have the greatest influence on the texture of beans undergo important transformations during soaking and cooking. Moreover, the extent to which these changes are linear is unknown, making uncertain the use of raw beans in chemical screenings for sensory properties. Results of our experiments show that the amount of protein and amylose present in raw beans provides a good indicator of these substances in cooked beans (correlation coefficients between raw and cooked beans = 0.91, p <= 0.001 and 0.87, p <= 0.01, respectively). The Mg content in the raw seed coat also shows a strong correlation with that found in the cooked seed coat (r = 0.86, p <= 0.01). The correlations found for the other traits are weaker, indicating that the evaluation of raw samples is not predictive of the findings in cooked beans. (c) 2006 Elsevier Ltd. All rights reserved.
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