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Cell wall polysaccharides and lignin in cotyledons and hulls of seeds from various lupin ( Lupinus L.) species
Author(s) -
Brillouet JeanMarc,
Riochet Denis
Publication year - 1983
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740340814
Subject(s) - lupinus , lupinus angustifolius , cell wall , biology , botany , polysaccharide , galactan , lignin , endosperm , arabinose , xylose , food science , biochemistry , fermentation
Cell wall constituents have been analysed in cotyledons and hulls of eleven species of lupins ( Lupinus albus, angustifolius, elegans, graecus, hispanicus, luteus, mutabilis, pilosus, subcarnosus, succulentus and varius ) and in five varieties of white lupin ( Lupinus albus ). Cotyledon cell walls obtained after defatting and pronase treatment of dehulled flours ranged from 7% of dry matter in L. elegans to 32% in L. pilosus and essentially consisted of galactose, arabinose and galacturonic acid residues. Wall content was closely related to galactose percent, an increase in cell wall proportion likely being due to branching of additional galactan side‐chains on rhamnogalacturonans. Hulls were mainly constituted of cellulose associated with hemicellulosic and pectic polymers. Most lupin hulls had low lignin contents.