Nutrient and Sensory Properties of Dry Beans (Phaseolus vulgaris L.) Grown Under Various Cultural Conditions

Abstract

Dry beans and Rufus (Red Mexican) were field-grown under presence or absence of Fusarium root rot, drought or optimum water, low or high nitrogen fertilization. Raw bean powder was analyzed chemically for proximate composition, minerals, vitamins and amino acids, and by Tetruhymena pyn'formis W for protein quality. Cooked beans underwent sensory evaluation. Protein content of raw beans generally varied inversely with irrigation. Rufus beans contained significantly more thiamin than comparable III-114 beans. High-N non-diseased soils produced beans with methionine concentrations greater than those from low-N Fusarium-infected soils. Pinto III-114 beans were rated significantly more acceptable than Rufus beans (P < 0.001).

DRY BEAN (PHASEOLUS VULGARJS) COLOR STABILITY AS INFLUENCED BY TIME and MOISTIJRE CONTENT

“…(1984) reported that seasonal effects predominated over genotypic effects in studies of yield and physicochemical seed characteristics of beans. Koehler and Burke (1988) reported that nutrient, sensory and texture qualities of dry beans were influenced by management and environmental conditions. Thus, from this study, color stability of stored dry beans was found to be influenced by moisture content, physicochemical seed characteristics of beans, and by dry bean genotype.…”

Importância de compostos organossulfurados em sementes de leguminosas e em outros vegetais.

“…Jlmoles/g de semente de feijão nas 5 variedades. A concentração média de metionina nos feijões é da ordem de 1,4 g/100 g de proteína, o que corresponde a 20,6 Jlmoles/g de feijão, se o teor protéico for de 22% (RAYAS-DUARTE et aI., 1988;KOHLER & BURKE,-1988;PEACE et aI., 1988;MARLETTA et aI., 1992).…”

Isolamento, caracterização e quantificação de peptídeos y-glutamil sulfurados no feijão (<i>Phaseolus vulgaris</i> L.)

“…O teor de S-metilcisteína encontrado em nossos estudos, da ordem de 0,7% da proteína do feijão, representa uma quantidade muito elevada, considerando que a concentração de metionina em feijões da espécie Phaseolus situa-se ao redor de 1,4% na proteína (Koehler & Burkhe, 1988;Rayas-Duarte et aI., 1988;Peace et aI. , 1988;MarleUa et aI.…”