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Elaboration, characterization, and probiotic viability of synbiotic non-dairy drink based on coconut
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Elaboration, characterization, and probiotic viability of synbiotic non-dairy drink based on coconut
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Journal Article
Elaboration, characterization, and probiotic viability of synbiotic non-dairy drink based on coconut
2023
Overview
Coconut is a fruit grown in more than 80 countries owing to its outstanding nutritional and biological value and it is an important crop for the food industry” por “Coconut is a fruit grown in more than 80 countries and owing to its outstanding nutritional and biological value and it is an important crop for the food industry. Thus, developing new coconut-based products is attractive to explore the benefits provided by microorganisms and improve the nutritional and bioactive composition of coconut products, such as by preparing fermented beverages. This study developed and characterize a drink based on dry coconut with the prebiotic fructooligosaccharide fermented by the probiotic Lactobacillus casei. The drink was formulated, filtered, fermented, matured, and stored under refrigeration (4 °C) for 28 days; it was evaluated for its physical, chemical, antioxidant, and microbiological characteristics. Compared to the standard non-fermented sample during storage, the fermented drink showed significant variations (P < 0.05) in instrumental color, acidity, and pH, while changes in soluble solids and stability index were observed after 7 days of storage. Regarding the chemical composition, all parameters varied significantly after fermentation. The total phenolic compound content and antioxidant capacity increased significantly after fermentation. Significant reductions were observed (P < 0.05) in the viability of Lactobacillus casei after exposure to gastrointestinal tract conditions, with the following counts (in log CFU mL-1) after 0 and 28 days of storage: - initial: 9.23 ± 0.04 and 9.05 ± 0.12; after the gastric phase: 6.21 ± 0.09 and 5.90 ± 0.01; and after the intestinal phase: 4.59 ± 0.33 and 4.75 ± 0.23, respectively. RESUMO: O coco é uma fruta cultivada em mais de 80 países e devido ao seu excelente valor nutricional e biológico é uma importante cultura para a indústria alimentícia. Assim, desenvolver novos produtos à base de coco é atrativo para explorar os benefícios proporcionados por microrganismos e melhorar a composição nutricional e bioativa de produtos de coco, como na preparação de bebidas fermentadas. Este estudo desenvolveu e caracterizou uma bebida à base de coco seco com o prebiótico frutooligossacarídeo, fermentada pelo probiótico Lactobacillus casei. A bebida foi formulada, filtrada, fermentada, maturada e armazenada sob refrigeração (4 °C) por 28 dias; além de avaliada em relação às suas características físicas, químicas, antioxidantes e microbiológicas. Quando comparada à amostra padrão não-fermentada ao longo do armazenamento, a bebida fermentada apresentou variações significativas (P < 0.05) para cor instrumental, acidez e pH, enquanto as alterações para sólidos solúveis e índice de estabilidade foram observadas a partir do 7° dia de armazenamento. Em relação à composição química, todos os parâmetros variaram significativamente após o processo fermentativo. O teor de compostos fenólicos totais e capacidade antioxidante aumentaram significativamente após a fermentação. Reduções significativas foram observadas (P < 0,05) na viabilidade do Lactobacillus casei após a exposição às condições do trato gastrointestinal, com as seguintes contagens (em UFC mL-1) após 0 e 28 dias de armazenamento: - inicial: 9,23 ± 0.04 e 9,05 ± 0,12; após a fase gástrica: 6,21 ± 0,09 e 5,90 ± 0,01; e após a fase intestinal: 4,59 ± 0,33 e 4,75 ± 0,23, respectivamente.
