title: Effect of genotype and environment on the concentrations of starch and protein in, and the physicochemical properties of starch from, field pea and fababean.
abstract: BACKGROUND
  The effects of genotype and environment and their interaction on the concentrations of starch and protein in, and the amylose content and thermal and pasting properties of starch from, pea and fababean are not well known.
  
  
  RESULTS
  Differences due to genotype were observed in the concentrations of starch and protein in pea and fababean, in the onset temperature (To) and peak temperature (Tp) of gelatinization of fababean starch, and in the pasting, trough, cooling and final viscosities of pea starch and fababean starch. Significant two-way interactions (location × genotype) were observed for the concentration of starch in fababean and the amylose content, To, endothermic enthalpy of gelatinization (ΔH) and trough viscosity of fababean starch. Significant three-way interactions (location × year × genotype) were observed for the concentration of starch in pea and the pasting, trough, cooling and final viscosities of pea starch.
  
  
  CONCLUSIONS
  Differences observed in the concentrations of starch and protein in pea and fababean were sufficient to be of practical significance to end-users, but the relatively small differences in amylose content and physicochemical properties of starch from pea and fababean were not.
authors.affiliation: Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada. shood-niefer@foodcentre.sk.ca
authors.forename: Shannon D
authors.initials: SD
authors.lastname: Hood-Niefer
authors.forename: Thomas D
authors.initials: TD
authors.lastname: Warkentin
authors.forename: Ravindra N
authors.initials: RN
authors.lastname: Chibbar
authors.forename: Albert
authors.initials: A
authors.lastname: Vandenberg
authors.forename: Robert T
authors.initials: RT
authors.lastname: Tyler
mesh_terms: D000688:Amylose / Q000378:metabolism*; D004777:Environment; D005838:Genotype; D018532:Pisum sativum / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D013213:Starch / Q000737:chemistry / Q000378:metabolism*; D013696:Temperature; D031307:Vicia faba / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D014783:Viscosity
chemical_list: D010940:Plant Proteins; D013213:Starch; D000688:Amylose