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KMID : 1007520210300131675
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Food Science and Biotechnology
2021 Volume.30 No. 13 p.1675 ~ p.1684
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Characteristics of lipoxygenase-based and lipoxygenase-deficient soy yogurt with modified okara
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Wang Xiujuan
Chen Yue
Wang Yuhua
Dai Weichang
Piao Chunhong
Yu Hansong
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Abstract
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Lipoxygenase-based and lipoxygenase-deficient okara were modified by Kluyveromyces marxianus fermentation, then adding modified okara back to the corresponding soymilk to prepare soy yogurt. The physicochemical properties, texture, and volatile components of soy yogurt were characterized. The results showed that okara modified by Kluyveromyces marxianus fermentation was rich in soluable dietary fiber and was imparted better water-holding capacity, swelling capacity, and oil-holding capacity. The soy yogurt with the modified okara was greatly enhanced in its appearance, texture and was relatively stable during storage. Moreover, lipoxygenase-based soy yogurt had a unique soybean flavor while lipoxygenase-deficient soy yogurt had a slight beany flavor and soybean flavor. This article guides a bio-modified method for okara and provides a theoretical basis for the further development and application of soy yogurt with high dietary fiber as well as lipoxygenase-deficient soy yogurt.
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KEYWORD
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Soy yogurt, Fermentation, Modified okara, Kluyveromyces marxianus
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