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Amino acid composition and chemical score of raw, processed legumes and supplemented pasta

AuthorsMartínez Villaluenga, Cristina ; Torres, Alexia; Frías, Juana ; Vidal-Valverde, Concepción
Pigeon pea
Alcoholic extraction
Supplemented pasta
Issue DateMay-2010
CitationLWT - Food Science and Technology 43(4): 617–622 (2010)
AbstractThe objective of this work was to study the effect of processing (alcoholic extraction, fermentation and germination) on protein quality of lupin (Lupinus angustifolius L. var. Troll and Emir) and pigeon pea (Cajanus cajan L. var. Aroito) flours. Second, the effect of semolina supplementation with the processed legume flours on protein quality of pasta was also evaluated. For protein quality evaluation amino acid composition and chemical score (CS) were determined in raw and processed legume flours as well as cooked semolina pasta supplemented and non-supplemented with processed legumes. Alcoholic extraction did not cause important changes in the amino acid profile of lupin seeds. Certainly, sulphur amino acid content of ethanol extracted lupin flours was reduced but levels remained similar to those usually found in other legumes. However, fermentation and germination of pigeon pea seeds improved some essential amino acids and slight changes in CS indexes were observed. Moreover, semolina supplementation with processed lupin and pigeon pea flours improved protein quality of pasta as a result of higher CS and EAA levels compared to the control cooked semolina pasta. Therefore, ethanol extracted lupin, as well as fermented and germinated pigeon pea seeds are suitable protein sources for formulating new pasta products
Publisher version (URL)http://dx.doi.org/10.1016/j.lwt.2009.11.001
Appears in Collections:(IFI) Artículos
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