Non-digestible carbohydrates in Brazilian soybean seeds [Glycine max (L.) Merril]

Summary: Non-digestible carbohydrate fraction (NDCF) consists of a range of bioactive compounds that escape digestion in the small intestine. NDCF is mainly composed of dietary fibre (DF) and non-digestible oligosaccharides (NDO). The objective of this work was to analyse directly and compare the NDCF in two Brazilian cultivars of soybean seed with commercial flour. Brazil is the second major soybean producer in the world. The seed cultivars showed on average a NDCF value of 32.80 g per 100 g dry weight (dw). Regarding DF, insoluble DF (IDF) was the main fraction amounting on average to 98%. Uronic acids were significantly higher than neutral sugar (NS) in IDF and soluble DF (SDF) fractions. There was a considerable amount of Klason lignin - on average 84.14% of DF. Regarding NS profile, mannose was the most important sugar in SDF, whereas galactose and arabinose were predominant in IDF. Stachyose was the main oligosaccharide in NDO. DF and NDO were in the same proportion (94.2:5.8) in tested cultivars. No differences in swelling, water retention, or oil retention capacities between seed cultivars were detected. This study on non-digestible carbohydrate components in soybean seed gives a different approach to the current nutritional knowledge on protein and oil constituents. © 2010 The Authors. International Journal of Food Science and Technology © 2010 Institute of Food Science and Technology.

Bibliographic Details

Main Authors:	Jiménez Escrig, Antonio, Serra, Myrian-Thereza, Rupérez Antón, Pilar
Format:	artículo biblioteca
Published:	Wiley-Blackwell 2010
Subjects:	Cultivars, Soybean seed, Food composition, Oligosaccharides, Dietary fibre,
Online Access:	http://hdl.handle.net/10261/103320
Tags:	Add Tag No Tags, Be the first to tag this record!