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Analysis of water-soluble bioactive compounds in commonly consumed soymilk in China.

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Title: Analysis of water-soluble bioactive compounds in commonly consumed soymilk in China.
Authors: Li, Yi-Ran1,2, Yun, Ting-Ting1, Liu, Shan1, Qi, Wen-Tao1 qwt@chinagrain.org, Zhao, Li-Qin2, Liu, Jia-Ren3 Jia-Ren.Liu@childrens.harvard.edu, Li, Ai-Ke1 lak@chinagrain.org
Source: Journal of Food Composition & Analysis. Mar2016, Vol. 46, p29-35. 7p.
Subjects: Food consumption, Soymilk, Soybean -- Nutrition, Bioactive compounds, High performance liquid chromatography, Spectrophotometers
Geographic Terms: China
Abstract: Soybean, an important source of many bioactive compounds, is of interest because of the health benefits it confers. We compared the contents of different bioactive components, such as peptides, amino acids, isoflavones, saponins, and oligosaccharides, in five commonly used soymilk types in China, using an amino acid analyzer, high-performance liquid chromatography, and an ultraviolet spectrophotometer. The concentrations of almost all bioactive compounds, except for stachyose and raffinose, were significantly higher in homemade soymilk (HSM) samples than in ready-made soymilk (RSM) samples. HSM created using non-genetically modified soybeans contained the most amino acids (21.7%), water-soluble proteins (25.6%), peptides (11.90%), and water-soluble isoflavones (1175 μg/mL). HSM made using genetically modified soybeans contained the most saponin (36.7 mg/mL). RSM samples contained the most stachyose and raffinose. These findings provide basic information for evaluating the function of soymilk with regard to its bioactive ingredients. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:Soybean, an important source of many bioactive compounds, is of interest because of the health benefits it confers. We compared the contents of different bioactive components, such as peptides, amino acids, isoflavones, saponins, and oligosaccharides, in five commonly used soymilk types in China, using an amino acid analyzer, high-performance liquid chromatography, and an ultraviolet spectrophotometer. The concentrations of almost all bioactive compounds, except for stachyose and raffinose, were significantly higher in homemade soymilk (HSM) samples than in ready-made soymilk (RSM) samples. HSM created using non-genetically modified soybeans contained the most amino acids (21.7%), water-soluble proteins (25.6%), peptides (11.90%), and water-soluble isoflavones (1175 μg/mL). HSM made using genetically modified soybeans contained the most saponin (36.7 mg/mL). RSM samples contained the most stachyose and raffinose. These findings provide basic information for evaluating the function of soymilk with regard to its bioactive ingredients. [ABSTRACT FROM AUTHOR]
ISSN:08891575
DOI:10.1016/j.jfca.2015.10.011