Resistant Starch And In Vitro Starch Digestibility Of Cooked "Ayocote" Bean (Phaseolus Coccineous)
Interciencia(2004)
摘要
"Ayocote" beans (Phaseolus coccineous) were cooked and studied regarding their chemical composition and in vitro starch digestibility. Protein and ash contents were 20.46 and 1.39%, respectively, which are among the lowest levels for seeds of the Phaseolus genus. On the contrary, lipid content was relatively high (3.31%). Available starch (AS) values decreased with storage at 4degreesC, changing from 37.93 (freshly cooked "control" seeds) to 32.18% (seeds stored for 96h). An inverse pattern was found for resistant starch (RS) content. RS ranged between 2.24 and 3.49% for the control and 96h-stored samples, which represents a 56% increase in the RS content. Resistant starch associated to dietary fiber (RSAF) had a similar behavior, as its values increased with the storage time. The alpha-amylolysis rate decreased with storage, i.e. long-stored (96h) cooked samples exhibited slower starch digestion features. The predicted glycemic index ranged between 62.9 and 59.7%, suggesting slow glucose-release features for starch in "ayocote" beans.
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关键词
beans, digestibility, legumes, Phaseolus coccineous, resistant starch, starch
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