Dataset Information

Characteristics of lipoxygenase-based and lipoxygenase-deficient soy yogurt with modified okara.

ABSTRACT: 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.

Supplementary information

The online version contains supplementary material available at 10.1007/s10068-021-01003-w.

SUBMITTER: Wang X

PROVIDER: S-EPMC8639974 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature

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Characteristics of lipoxygenase-based and lipoxygenase-deficient soy yogurt with modified okara.

Wang Xiujuan X Chen Yue Y Wang Yuhua Y Dai Weichang W Piao Chunhong C Yu Hansong H

Food science and biotechnology 20211126 13

Lipoxygenase-based and lipoxygenase-deficient okara were modified by <i>Kluyveromyces marxianus</i> 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 <i>Kluyveromyces marxianus</i> fermentation was rich in soluable dietary fiber and was imparted better water-holding capacity, swelling capacity, and oil-holding ...[more]

PMID: 34925942

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Project description:Biscuits are popular ready to eat, cheap and convenient food products that are consumed globally. Supplementation of wheat flour with inexpensive staples from other cereals, legumes, roots and tubers will help in improving the nutritional quality of wheat products. Therefore, this study investigated the sensory and physicochemical properties of biscuits produced from blends of whole wheat, soy okara and tigernut residue flours. The sensory qualities of the twelve whole wheat, soy okara and tigernut residue flour biscuits at p < 0.05 ranged from 5.36 to 7.68 (color), 5.60-7.64 (appearance), 4.48-7.96 (mouthfeel), 4.28-7.76 (aroma), 3.96-8.32 (taste), 3.64-8.20 (crunchiness), 3.56-7.56 (crispiness), and 5.08-8.36 (overall acceptability). Physical, proximate and mineral analysis were carried out on the best five biscuit samples containing 100:0:0 (MVP), 60:20.98:19.02 (ISP), 50.75:39.25:10 (JAR), 53.79:22.57:23.64 (GEN) and 56.32:27.39:16.29 (XEC) whole wheat, soy okara and tigernut residue flours respectively. The physical analysis showed that diameter (38.13-38.17 mm), height (37.73-37.76 mm) and thickness (6.10-6.17 mm) were not significantly different, but the weight (7.30-7.73 g), spread ratio (5.73-6.10 mm) and breaking strength (600-643 g) significantly (p < 0.05) differed among the biscuit samples. The proximate composition of the biscuits ranged from; ash (1.70-1.90%), moisture (4.00-5.70%), fiber (7.00-11.30%), fat (16.20-17.30%), protein (6.50-12.00%), carbohydrate (56.94-59.20%) while mineral content ranged from; magnesium (122.00-134.00 mg/100 g), sodium (16.00-28.00 mg/100 g), calcium (12.00-24.00 mg/100 g), iron (2.30-3.50 mg/100 g) and phosphorus (100.00-121.00 mg/100 g). The study showed that substitution of wheat flour with soy okara and tigernut residue flour at a ratio of 60:20.98:19.02 yielded the most acceptable biscuits in all the sensory attributes assessed. This implies that biscuits produced from this composite blend contain sufficient amounts of protein, fat, fiber and carbohydrate. Hence, they can serve as relief for malnutrition.

Dataset Information

Characteristics of lipoxygenase-based and lipoxygenase-deficient soy yogurt with modified okara.

Supplementary information

Publications

Characteristics of lipoxygenase-based and lipoxygenase-deficient soy yogurt with modified okara.

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