Pilosocereus gounellei (xique-xique) flour: Improving the nutritional, bioactive, and technological properties of probiotic goat-milk yogurt.
In this study, we evaluate the technological, nutritional, and bioactivity effects on goat-milk yogurt of adding different concentrations of xique-xique flour: 1.0% (XY1%) and 2.0% (XY2%). The goat-milk yogurts (stored under refrigeration) also contained Limosilactobacillus mucosae CNPC007 (an autochthonous strain). The XY1% and XY2% treatments presented greater intensity in terms of color (yellow), and greater luminosity (L*) during storage than the control yogurt (CY). Up to the 14th day of storage, the XY1% and XY2% treatments presented greater viscosity values as well. During storage, as in any fermentation process, a reduction in lactose (hydro- lysis) was observed, with a greater release of simple sugars glucose and galactose and a concomitant increase in the lactic acid content. The PCA confirmed that these behaviors were more evident from the 14th day of the XY1% treatment, and on the 28th day in XY2% treatment. After 28 days of storage, XY2% presented higher counts of L. mucosae CNPC007, with higher mineral, total phenolic compounds, and flavonoid contents, as well as greater antioxidant activity (by FRAP). Xique-xique flour can be used to produce goat-milk yogurt without negatively affecting its technological characteristics, adding both nutritional and functional value to the product.
Main Authors: | , , , , , , , , , , , |
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Other Authors: | |
Format: | Artigo de periódico biblioteca |
Language: | Ingles English |
Published: |
2022-04-26
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Subjects: | Apparent viscosity, Iogurte, Nutriente Mineral, Composto Fenólico, Tecnologia de Alimento, Schlumbergera (Cactaceae), Goat milk, Yogurt, Mineral content, Phenolic compounds, Food technology, |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1142408 https://doi.org/10.1016/j.lwt.2022.113165 |
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Summary: | In this study, we evaluate the technological, nutritional, and bioactivity effects on goat-milk yogurt of adding different concentrations of xique-xique flour: 1.0% (XY1%) and 2.0% (XY2%). The goat-milk yogurts (stored under refrigeration) also contained Limosilactobacillus mucosae CNPC007 (an autochthonous strain). The XY1% and XY2% treatments presented greater intensity in terms of color (yellow), and greater luminosity (L*) during storage than the control yogurt (CY). Up to the 14th day of storage, the XY1% and XY2% treatments presented greater viscosity values as well. During storage, as in any fermentation process, a reduction in lactose (hydro- lysis) was observed, with a greater release of simple sugars glucose and galactose and a concomitant increase in the lactic acid content. The PCA confirmed that these behaviors were more evident from the 14th day of the XY1% treatment, and on the 28th day in XY2% treatment. After 28 days of storage, XY2% presented higher counts of L. mucosae CNPC007, with higher mineral, total phenolic compounds, and flavonoid contents, as well as greater antioxidant activity (by FRAP). Xique-xique flour can be used to produce goat-milk yogurt without negatively affecting its technological characteristics, adding both nutritional and functional value to the product. |
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