Evaluation of the effect of substrates and types of wheat flour on microbiological characteristics, pH values, levels of total phenolic compounds, antioxidant capacity and fermentative capacity of sourdough

Autores

DOI:

https://doi.org/10.33448/rsd-v11i9.32401

Palavras-chave:

Fermento; Substratos; Capacidade fermentativa; Fenólico.

Resumo

O fermento natural é um processo que está em expansão nos dias atuais. No entanto, os microrganismos presente produzem metabólitos que podem causar alterações nos pães. Assim, o objetivo deste trabalho foi avaliar os efeitos dos substratos e dos tipos de farinha de trigo nas características microbiológicas, valores de pH, compostos fenólicos totais, capacidade antioxidante e capacidade fermentativa de diferentes tipos de fermentos naturais comparando-os com o fermento biológico liofilizado. Desta forma, foram elaborados seis fermentos naturais diversificando o tipo de farinha de trigo (integral ou branca) e o substrato (mosto de cerveja, suco de abacaxi ou iogurte natural), sendo avaliados nos aspectos microbiológicos (contagem de leveduras, bactérias em condições anaeróbicas e em condições aeróbicas), físico-químicos (pH, compostos fenólicos e capacidade antioxidante (β-caroteno/ácido linoleico, ABTS e DPPH)) e capacidade fermentativa (somente nos fermentos naturais). Diante dos resultados obtidos, observou-se que tanto a farinha de trigo branca como a farinha de trigo integral, com os substratos iogurte, suco de abacaxi e mosto cervejeiro, apresentaram diferenças quanto às características microbiológicas, nos valores de pH, no teor de compostos fenólicos totais, na capacidade antioxidante e na capacidade fermentativa em comparação com o fermento biológico liofilizado, sendo que a farinha de trigo integral, abacaxi ou mosto de cerveja proporcionaram diversidade microbiana, bem como o abaixamento do pH. Já os fermentos WY (farinha de trigo branca e iogurte), WP (farinha branca e abacaxi) e IW (farinha de trigo integral e mosto cervejeiro) foram mais resistentes às temperaturas (25 °C, 30 °C e 35 °C).

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20/07/2022

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SANTOS, J. G. dos .; ÁVILA, P. M. de . .; SCHIMITBERGER, R. .; CUNHA, L. R. da; GOMES, R. A. B. .; VIEIRA, M. C. .; MONTEIRO, R. de S. .; VIEIRA, S. M.; PEREIRA, P. A. P. Evaluation of the effect of substrates and types of wheat flour on microbiological characteristics, pH values, levels of total phenolic compounds, antioxidant capacity and fermentative capacity of sourdough. Research, Society and Development, [S. l.], v. 11, n. 9, p. e13211932401, 2022. DOI: 10.33448/rsd-v11i9.32401. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/32401. Acesso em: 30 jun. 2024.

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Ciências Agrárias e Biológicas