Variation in phytate accumulation in common bean (Phaseolus vulgaris L.) fruit explants

Coelho, Cileide Maria Medeiros; Bellato, Cláudia de M.; Garcia, Andréia K.M.; Vitorello, Victor Alexandre; Azevedo, Ricardo Antunes

doi:10.1590/s1516-89132008000100020

Cited by 5 publications

(4 citation statements)

References 32 publications

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“…The absorbance of the salicylate-Fe (III) complex was determined on a spectrophotometer (BioTek Instruments, Inc., USA, 500 nm). The PA concentration was calculated using a standard curve (0–60 mg/mL) that was obtained with phytic acid dipotassium salt (Sigma-Aldrich, Canada) [ 55 ].…”

Section: Methodsmentioning

confidence: 99%

The acceptance of zinc biofortified rice in Latin America: A consumer sensory study and grain quality characterization

et al. 2020

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Zinc deficiency is a major public health problem in vulnerable populations of Latin America and the Caribbean. Biofortification of rice (Oryza sativa L.) with zinc has the potential to alleviate zinc deficiencies. However, as plant breeding processes can alter grain culinary quality and favorable sensory attributes, grain quality and consumer acceptability need to be assessed prior to releasing a variety to the public. A grain quality characterization and a sensory acceptability analysis were carried out with two varieties of zinc biofortified rice and a local control both in Bolivia and Colombia. The aim of this study was to evaluate the physicochemical parameters that are significant in consumer acceptance and to determine the acceptability of zinc biofortified rice by consumers. Results of physicochemical parameters were analyzed using ANOVA. The sensory acceptability was evaluated in 243 adults utilizing a 7-point hedonic scale and a Wilcoxon’s signed rank test was used to determine the overall acceptability of the varieties. Biofortified rice variety T2-11 and MAC-18 -control 1- were equally accepted by consumers in Bolivia with no significant differences (p<0.05). The grain quality analysis reported that both presented long and slender rice grains (L>7.5 mm and L/B>3), an intermediate to high amylose content (>25%) and a similar level of chalkiness. In Colombia, the biofortified variety 035 presented a higher score in overall acceptance in comparison to biofortified variety 021 and the local variety CICA4 -control 2-. However, no significant differences were observed (p<0.05). Conversely to the other two varieties, the biofortified variety 035 presented the largest size grain (L/B = 2.97), a lower chalkiness and an amylose content above 25%. This study shows that the grain quality properties of rice have an influence on acceptability and that zinc biofortified rice varieties are accepted by consumers.

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Section: Methodsmentioning

confidence: 99%

The acceptance of zinc biofortified rice in Latin America: A consumer sensory study and grain quality characterization

et al. 2020

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“…On the other hand, this compound may exert antioxidant activity by complexing with iron, reducing the formation of free radicals and peroxidation of membranes, which could provide anticarcinogenic power (Thomson & Zhang, 1991). Therefore, there is an increased interest in the manipulation of phytate in grains worldwide, either to increase or decrease their concentration in foods (Coelho, Bellato, Garcia, Vitorello, & Azevedo, 2008;Coelho, Benedito, Figueira, Vitorello, & Azevedo, 2007;Coelho, Tsai, & Vitorello, 2005).…”

Section: Introductionmentioning

confidence: 99%

Association of genotype and preparation methods on the antioxidant activity, and antinutrients in common beans (Phaseolus vulgaris L.)

Valdés

Coelho

Michelluti

et al. 2011

LWT - Food Science and Technology

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a b s t r a c tThree bean genotypes were selected in order to be evaluated, being IAPAR-81 (IAP), Uirapuru (UI) and BAF 55 (BAF). The samples were: raw (R), cooked without soaking (CWS), cooked with soaking water (CWSW) and cooked without soaking water (COSW). For the antioxidant activity, total phenolics, tannin and phytate analysis, the broths were separated from the grains and the soaking water separated from the COSW sample was analyzed. The CWSW and COSW grain samples showed higher antioxidant potential in the three genotypes (IAP: 0.037 and 0.039; UI: 0.035 and 0.040; BAF: 0.040 and 0.047, respectively). There were losses of total phenolics, tannin and phytate in all samples of the cooked beans demonstrating the importance of consumption and use of the cooked broths. The CWS was the preparation that preserved the majority of the nutrients in the grains, except for the antioxidant activity. In the broth, BAF 55 showed higher levels of tannin and phenolic compounds in all preparations. The analysis of the raw bean is important to know the nutritional value of the food, but the common bean is consumed cooked which modifies its characteristics as well as the availability of the nutrients to be absorbed.

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“…As can be seen, taking the first day of germination as control, on the 4 th day, the PA content decreased to 70.42 and 75.26% in BRS191 and C11, respectively, which was in agreement with Agostini and Ida (2006a) who observed the germination of hybrid sunflower M734, and previously reported by Egli et al (2002) who investigated the germination of several grains and seeds. On the other hand, Coelho et al (2008), from in vitro synthesis of phytate in culturing bean fruit explants concluded that different concentrations of phosphorus, sucrose, abscisic acid, glutamine and methionine caused an increase in the phytate of bean seed, showing that it could be possible to alter its content. Phytases activities in non-germinated seeds varied from 0.08 UI/g for both BRS191 and C11, which demonstrated the correlation between the PA content and both enzyme activities.…”

Section: Pa and Enzyme Activity In Germinationmentioning

confidence: 99%

“…Agostini and Ida (2006a) investigated the germination of hybrid sunflower M734 by response surface methodology and observed minimal phytate and acid phosphatase activity on the 6 th day of germination at 30° C. The best conditions for phytase activity were the 4 th day of germination at the same temperature. Other studies by different techniques suggest a decrease or control in PA content (Reddy et al, 1982;Coelho et al, 2008). Phytases or mio-inositolhexaphosphate phosphohydrases (EC 3.1.3.26) or 6-phytases are phytate-specific phosphatases that hydrolyze PA or mio-inositol hexaphosphate to inositols and phosphates (Reddy et al, 1982).…”

Section: Introductionmentioning

confidence: 99%

Lowering of phytic acid content by enhancement of phytase and acid phosphatase activities during sunflower germination

Agostini

Nogueira

Ida

2010

Braz. arch. biol. technol.

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Variation in phytate accumulation in common bean (Phaseolus vulgaris L.) fruit explants

Cited by 5 publications

References 32 publications

The acceptance of zinc biofortified rice in Latin America: A consumer sensory study and grain quality characterization

The acceptance of zinc biofortified rice in Latin America: A consumer sensory study and grain quality characterization

Association of genotype and preparation methods on the antioxidant activity, and antinutrients in common beans (Phaseolus vulgaris L.)

Lowering of phytic acid content by enhancement of phytase and acid phosphatase activities during sunflower germination

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