Cultivar, harvest year, and storage conditions affecting nutritional quality of common beans (Phaseolus vulgaris L.

Abstract

IntroductionCommon beans (Phaseolus vulgaris L.) are grown and consumed throughout the world. They play an important role in the nutrition of low-income people especially in developing countries, where they are often the most important dietary source of protein, carbohydrate, dietary fiber, and minerals (THARANATHAN;MAHADEVAMMA, 2003). It is noteworthy that protein energy undernutrition and micronutrient deficiencies in childhood can be prevented if beans and cereals are appropriately combined. Besides the nutritional role, bean consumption has other potential benefits for human health such as lowering the risk of colon cancer and of heart disease, reducing total and LDL cholesterol, and regulating blood glucose and insulin levels (THE MICHIGAN BEAN COMMISSION, 2008). Different chemical characteristics can be found in beans according to the genetic variety (BARAMPAMA; SIMARD, 1993;KIGEL, 1999). Genetic research concerning bean culture is mainly aimed at improving productivity and resistance to field pests and environmental stress. Although, there is evidence ResumoCompararam-se as características físico-químicas de dezesseis cultivares de feijão-comum cru ao longo de duas safras consecutivas, assim como se avaliou o efeito das condições de armazenagem nos teores de amido e fibra alimentar em grãos cozidos. A análise de agrupamento possibilitou a identificação de grupos de cultivares com características nutricionais distintas. Estas cultivares foram categorizadas em quatro grupos de acordo com o conteúdo de macronutrientes (proteína bruta-PROT, fibra alimentar total-TDF, fibra alimentar insolúvel-IDF, fibra alimentar solúvel-SDF, amido disponível-DS e amido resistente-RS) ou de micronutrientes (Fe, Zn, Mn, Cu, Ca, Mg, e P). Guateian 6662 e Rio Tibagi mostraram-se as cultivares mais adequadas para prevenir deficiências nutricionais, devido aos altos teores de PROT, DS, Fe e Zn. Os altos teores de fibra alimentar total e RS das cultivares Iraí, Minuano e TPS Bonito, e especialmente os altos teores de fibra solúvel das cultivares Guateian 6662 e Rio Tibagi sugerem que estas poderiam auxiliar no controle dos lipídios e glicose séricos. Os grãos cozidos apresentaram redução no DS e aumento de RS após armazenagem (4 °C ou -20 °C), mas estas alterações foram mais pronunciadas em feijões que tinham baixos teores de RS antes do cozimento do que naqueles com altos teores. Os teores de TDF, IDF, e SDF não alteraram após a armazenagem. Palavras-chave: fibra alimentar; amido disponível; amido resistente; conteúdo mineral. AbstractSixteen common bean cultivars were compared concerning the physicochemical characteristics of their raw seeds in the course of two consecutive harvests, as well as the effect of storage conditions on starch and dietary fiber content of cooked beans. Using cluster analysis it was possible to identify groups of cultivars with different nutritional features. Bean cultivars were categorized into four different groups according either to their macronutrient content (crude protein-PROT, total dietary fiber...

Nutritional technological characterization and secondary metabolites in stored carioca bean cultivars

“…Our results for P concentration are close to those reported by Prolla et al (2010), who reported P contents varying between 3.35 and 3.58 g·kg -1 per sample of raw beans in 16 cultivars. The mean content of P in raw beans reported by Oliveira (2009) Zn (UNICAMP, 2011).…”

“…This variability is important for diets based on food chemical composition tables, which normally do not have specific values for different bean cultivars or their possible changes in the course of harvest years. In addition, beans of improved nutritional quality and with specific characteristics could be provided to populations worldwide and thus meet their consumption (Prolla et al, 2010) and nutritional needs.…”

Apparent digestibility of dry matter, organic matter, protein and energy of native Peruvian feedstuffs in juvenile rainbow trout (Oncorhynchus mykiss)

“…The Andean grains such as kañiwa (Chenopodium pallidicaule Aellen), kiwicha, (Amaranthus caudatus L) and quinoa (Chenopodium quinoa Willd) contain proteins of high biological value and are the main source of protein and energy in the diet of the Andean people (Repo-Carrasco et al 2003;Repo-Carrasco et al 2009;Molina-Poveda et al 2015) since more than 80% of world production is carried out in Peru and Bolivia (Bazile et al 2016). Likewise, beans (Phaseolus vulgaris L.) are an important source of nutrients in human nutrition (Barampama and Simard 1993;Prolla et al 2010) and in aquafeeds (Rodríguez-Miranda et al 2014).…”

Anthocyanins, polyphenols, flavonoids and antioxidant activity in common bean (Phaseolus vulgaris L.) landraces

“…Thus, estimating the nutritional content of beans is relevant. Variety, climatological conditions, crop management, and storage conditions affect the nutritional quality of common beans (Santalla et al, 1999;Prolla et al, 2010;Blair et al, 2010); furthermore, common bean landraces and cultivated and wild species differ in their nutritional compound contents (Espinosa-Alonso et al, 2006).…”