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

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 se...

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Bibliographic Details
Published in:PloS one 2020-11, Vol.15 (11), p.e0242202-e0242202
Main Authors: Woods, Bo-Jane, Gallego-Castillo, Sonia, Talsma, Elise F, Álvarez, Daniel
Format: Article
Language:English
Subjects:
Acceptability
Acceptance tests
Adolescent
Adult
Age
Agricultural products quality
Amylose
Analysis
Attitude
Biofortification
Biology and Life Sciences
Bolivia
Colombia
Consumer Behavior
Consumers
Edible Grain - chemistry
Edible Grain - standards
Enriched foods
Evaluation
Female
Food
Food, Fortified - standards
Genetically altered foods
Grain
Humans
Male
Medicine and Health Sciences
Middle Aged
Nutrient deficiency
Nutrition
Nutritional aspects
Oryza - chemistry
Parameters
People and places
Plant breeding
Public health
Quality management
Rank tests
Research and Analysis Methods
Rice
Rural areas
Sensory evaluation
Sensory properties
Social Sciences
Software
Taste Perception
Variance analysis
Zinc
Zinc (Nutrient)
Zinc - analysis
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Summary: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 (p7.5 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
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0242202