Guest guest Posted October 5, 2000 Report Share Posted October 5, 2000 http://www.infotrieve.com/healthworld/std_format.cgi?med96-97+131106+(microwave+\ ovens)+AND+(nutrition) -- Chinese Herbal Medicine Title Impact of microwave heating on hemagglutinins, trypsin inhibitors and protein quality of selected legume seeds. Author Hern´andez-Infante M; Sousa V; Montalvo I; Tena E Address Unidad de Investigaci´on M´edica en Nutrici´on, Coordinaci´on de los Servicios de Investigaci´on, Instituto Mexicano del Seguro Social, M´exico DF. Source Plant Foods Hum Nutr, 52(3):199-208 1998 Abstract Selected legume seeds (dry and soaked) including faba beans, peas, chickpeas, soybeans, lentils and common beans containing 8 and 25% moisture, respectively, were subjected to microwave heating, and to a conventional cooking method to determine the heating effect on toxic compounds and protein quality. Trypsin inhibitors, hemagglutinins and available lysine were analyzed, and laboratory rats were used to determine digestibility and protein efficiency ratio (PER). Results indicated that microwaving destroyed trypsin inhibitors to a similar degree to that observed in beans cooked using the conventional method without affecting PER for raw seeds with low antinutrients content (faba beans, peas, chickpeas and lentils). Microwave-heated soaked soybeans had a higher amount of destroyed trypsin inhibitors, along with a higher PER, compared with microwave-heated dry soybeans. Microwave heating of common beans failed to destroy hemagglutinins and trypsin inhibitors, and consequently their digestibility and PER values were poor. Finally it was concluded that microwave heating constitutes an adequate method for destroying hemagglutinins and trypsin inhibitors without affecting protein quality of most legume seeds, except for common beans that despite of this process retained the antinutritional substances. Language Eng Unique Identifier 99133580 MESH Headings Animal ; Dietary Proteins AN ; Digestion ; Heat * ; Hemagglutinins *AN ; Legumes *CH ; Lysine AN ; Male ; Microwaves * ; Nutritive Value ; Plant Proteins *AN ; Rats ; Rats, Inbred F344 ; Trypsin Inhibitors *AN ; Water Publication Type JOURNAL ARTICLE ISSN 0921-9668 Country of Publication NETHERLANDS Quote Link to comment Share on other sites More sharing options...
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