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Reading: Non-Starch polysaccharides of seeds of soybean [Glycine Max. (L)]

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Non-Starch polysaccharides of seeds of soybean [Glycine Max. (L)]

Author:

G. Ravindran

University of Peradeniya, Peradeniya, LK
About G.
Department of Food Science and Technology, Faculty of Agriculture
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Abstract

Mature soybean seeds (variety FFR 559) were analysed for the non-starch polysaccharide composition. Non-starch polysaccharide (NSP) fractions were extracted by two methods, namely, chemical (triehloroacetic acid-TCA) and enzymatic methods. Yields of TCA- soluble, enzyme-soluble, TCA-insoluble and enzyme-insoluble NSP were 1.4, 13.1. 24.9 and 28.8% of the defatted flour, respectively. The differences in yields between the two methods were primarily due to contamination with non-carbohydrate materials (protein, ash and lignin) to the extent of 18.4- 30.8%. The results showed the soluble NSP to be an arabinogalactan type of polysaccharide containing arabinose and galactose in approximately 2:l ratio, and a uronic acid content of 30.4%. Cellulose associated with arabinogalactan, xylan and pectic polymers predominate the insoluble NSP. Mature soybean seeds were found to be free of starch.
How to Cite: Ravindran, G., 1988. Non-Starch polysaccharides of seeds of soybean [Glycine Max. (L)]. Journal of the National Science Foundation of Sri Lanka, 16(2), pp.223–228. DOI: http://doi.org/10.4038/jnsfsr.v16i2.8254
Published on 28 Dec 1988.
Peer Reviewed

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