LIU Hao-fei.Characteristics of Soybean Soluble Dietary Fiber[J].Soybean Science,2015,34(01):122-127.[doi:10.11861/j.issn.1000-9841.2015.01.0122]
豆渣水溶性膳食纤维特性研究
- Title:
- Characteristics of Soybean Soluble Dietary Fiber
- Keywords:
- Soybean dregs; Soluble dietary fiber; Characteristics
- 分类号:
- TS209
- 文献标志码:
- A
- 摘要:
- 通过红外光谱仪、粘度计等对豆渣水溶性膳食纤维(SDF)的特性进行了研究。结果表明:豆渣水溶性膳食纤维为多糖类物质,其持水力为8.25 g?g-1,溶胀力为9.38 mL?g-1,结合水力7.11 g?g-1,阳离子交换能力为0.73 mmoL?g-1。豆渣水溶性膳食纤维溶液粘度随剪切速率的增加而降低,呈现假塑性流体。豆渣水溶性膳食纤维有吸附胆酸钠的作用,其添加量越多,溶液中胆酸钠被吸附的量也越多,吸附平衡所花的时间越长。
- Abstract:
- The characteristics of SDF were studied by infrared spectrometer, viscometer and other methods. The results showed that SDF were polysaccharides and the SDF content were about 91.12%. The SDF characteristics were as follows: water holding capacity was 8.25 g?g-1, swelling capacity was 9.38 mL?g-1,water binding capacity was 7.11 g?g-1, and cation-exchange capacity was 0.73 mmol?g-1. The solution of SDF from soybean dregs were pseudoplastic fluid which viscosity decreased with the increasing of shear rate. The SDF had a certain degree of adsorption of sodium cholate and the experiments showed that the more of the addition of SDF, the more increasing of adsorption, the longer time to be used for adsorption equilibrium. The effects of the concentration,temperature and pH on viscosity and solubility of SDF were also discussed in this paper.
参考文献/References:
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备注/Memo
基金项目:黑龙江省科技厅“十一五”重大攻关项目(GA06B402-5)。