Large scale isolation of water-soluble and water-insoluble pentosans from wheat flour
A.L. Faurot, Luc Saulnier, Serge Bérot, Yves Popineau, M Petit, Xavier Rouau +1 more
LWT
Abstract
A procedure has been developed which allows the isolation of enriched pentosan fractions from wheat flour. The procedure is based on mixing flour and water (50 kg/150L). After centrifugation the supernatant is heat-treated and then concentrated by cross-flow ultrafiltration to give water-soluble pentosans, whereas the insoluble residue is treated with Alcalase and then Termamyl to give water-insoluble pentosans. Starting from 50 kg of flour from three different varieties (Soissons, Thésée, Apollo), water-soluble and water-insoluble pentosans containing respectively 100–200 g of water-soluble and 250–350 g of water-insoluble arabinoxylans, were prepared within 2 d. Water-soluble pentosans are constituted of approx. 40% arabinoxylans and are contaminated by proteins, whereas water-insoluble pentosans are composed of arabinoxylans (ca. 30%) and are contaminated by residual starch (ca 40%). Enrichment factors in arabinoxylans ranged from 98 to 66 for water-soluble and 27 to 19 for water-insoluble pentosans as compared with initial flour.
Extracted Claims
6 claims extracted from this paper into the knowledge graph
water-insoluble pentosans composed of arabinoxylans (ca. 30%) and are contaminated by residual starch (ca 40%)
“Water-soluble pentosans are constituted of approx. 40% arabinoxylans and are contaminated by proteins, whereas water-insoluble pentosans are composed of arabinoxylans (ca. 30%) and are contaminated by...”
pentosans isolated from wheat flour
“A procedure has been developed which allows the isolation of enriched pentosan fractions from wheat flour. The procedure is based on mixing flour and water (50 kg/150L). After centrifugation the super...”
water-soluble pentosans contain 100–200 g of water-soluble arabinoxylans
“Starting from 50 kg of flour from three different varieties (Soissons, Thésée, Apollo), water-soluble and water-insoluble pentosans containing respectively 100–200 g of water-soluble and 250–350 g of ...”