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The objective of this study was to examine the composition and molecular structure of the endosperm cell walls (CW) derived from barley grain grown in three environments in Canada, and differing in grain hardness, protein, and total β-glucan contents. The endosperm CW were isolated from barley,...
Three different ratios of alginic acid/chitosan matrices of ratios 3/1, 1/1 and 1/2, respectively, were crosslinked in their dry state using citric acid (CA)/sodium hypophosphite (SHP) at different conditions controlling the crosslinking process such as citric acid concentration, citric...
Cassava starch grafted with polystyrene (PS-g-starch) copolymer was synthesized via free-radical polymerization of styrene by using suspension polymerization technique. Potassium persulfate (PPS) was used as an initiator and water was used as a medium. The graft copolymer was characterized by...
Effects of different sugars on pullulan production, UDP-glucose level, and activities of α-phosphoglucose mutase, UDPG-pyrophosphorylase and glucosyltransferase in Aureobasidium pullulans Y68 were examined. It was found that more pullulan was produced when the yeast strain was grown in the...
Esterification of wheat straw hemicelluloses with acetyl chloride, propionyl chloride, n -octanoyl chloride, lauroyl chloride, palmitoyl chloride, stearoyl chloride, and oleoyl chloride, respectively, using N -bromosuccinimide (NBS) as a catalyst was achieved in DMF/LICl medium by microwave...
The kinetics and mechanisms of depolymerization of aqueous chitosan and alginate solutions at elevated temperatures have been investigated. Chitosan salts of different degree of acetylation ( F A ), type of counterions (-glutamate, -chloride) and degree of purity were studied. One commercially...
The main factors – the amount of catalyst NaOH, the temperature and composition of reaction mixture – influencing the effectiveness of starch cationization with glycidyltrimethylammonium chloride (GTAC) were investigated. It was found that cationic or cross-linked cationic starches with...
Yield of polysaccharides from Phascolosoma esulenta obtained by phosphate buffer extraction through an orthogonal experiment (L 9 (3) 4 ) were investigated to get the best extraction conditions. The results showed that extraction temperature, ratio of phosphate buffer to raw material, extraction...
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