Valéria Paula Rodrigues Minim

Bio: Valéria Paula Rodrigues Minim is an academic researcher from Universidade Federal de Viçosa. The author has contributed to research in topics: Whey protein & Quantitative Descriptive Analysis. The author has an hindex of 25, co-authored 161 publications receiving 2341 citations. Previous affiliations of Valéria Paula Rodrigues Minim include Southwest Bahia State University.

Estresse oxidativo: conceito, implicações e fatores modulatórios

Abstract: O estresse oxidativo decorre de um desequilibrio entre a geracao de compostos oxidantes e a atuacao dos sistemas de defesa antioxidante. A geracao de radicais livres e/ou especies reativas nao radicais e resultante do metabolismo de oxigenio. A mitocondria, por meio da cadeia transportadora de eletrons, e a principal fonte geradora. O sistema de defesa antioxidante tem a funcao de inibir e/ou reduzir os danos causados pela acao deleteria dos radicais livres e/ou especies reativas nao radicais. Esse sistema, usualmente, e dividido em enzimatico (superoxido dismutase, catalase e glutationa peroxidase) e nao-enzimatico. No ultimo caso, e constituido por grande variedade de substâncias antioxidantes, que podem ter origem endogena ou dietetica. Objetivou-se revisar os principais mecanismos de geracao de radicais livres, bem como a acao dos agentes mais relevantes do sistema de defesa antioxidante, ressaltando suas implicacoes sobre os marcadores do estresse oxidativo. Tambem serao abordados os principais fatores exogenos moduladores do estresse oxidativo.

Food technology neophobia and consumer attitudes toward foods produced by new and conventional technologies: A case study in Brazil

Abstract: New food technologies are promoting innovations in the food sector. However, not all technologies are accepted and understood by consumers; some cause resistance. The present work sought to study the behavior of Brazilian consumers in relation to different food technologies. A questionnaire was administered to a representative sample of 389 respondents in Belo Horizonte-MG, Brazil. Questionnaire collected information on consumer perceptions regarding new technologies by means of the Food Technology Neophobia Scale (FTNS), translated and validated into Portuguese, in addition to familiarity and willingness to try yogurts labeled such as traditional, pasteurized, organic, genetically modified, enriched with bioactive proteins and nanotechnology. Results suggested that neophobia regarding food technology is important to explain consumer behavior in relation to new technologies, especially for nanotechnology. Participants were less familiar with foods labeled as GM and nanotechnology, and willingness to try these products was lower. Consumers are still wary of GM and nanotechnology, possibly due to lack of assurance that these foods are safe for human health and the environment. For new food technologies (such as nanotechnology) that are still recent, communication is very important, being decisive for the consolidation of consumer perceptions, and consequently for the acceptance of these innovations on the market.

Green product purchase intention: Some insights from a developing country

Abstract: This paper examines from the motivational perspective of the Theory of Reasoned Action (TRA) how individual values and attitudes in a developing country influence purchase intention of a green product. It also investigates how values may affect attitudes towards environmentally responsible purchase intention. The study analyzed data collected from 257 working respondents who were asked their views concerning their value sets, attitudes and purchase intention of cloth diapers using the Structural Equation Modeling (SEM) technique. Findings indicate individual consequences relating to amount of effort and convenience of consumers is negatively related to intention to purchase green product. Environmental consequences are not a significant predictor of environmentally responsible purchase intention. Conservation value was found to be positively related to attitude on environmental consequences but less intensely with individual consequences while both self-transcendence value and self-enhancement value were positively related to individual consequences. Individual consequences and self-enhancement value were negatively related to environmentally responsible purchase intention. This paper has shown that the extended TRA is applicable and also this paper has enhanced understanding of predictors of environmentally responsible purchase intention in a developing country context.

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