Chemical Composition, Quality Parameters, Exopeptidase and Oxidoreductase Activity Changes During Temporal Development of Wheat Grain Infestation by Sitophilus granarius

摘要: Changes in chemical composition, grain quality parameters, oxidoreductase and exopeptidase activities of wheat grains infested by Sitophilus granarius were monitored during 1 year storage. Significant increase flour titratable acidity occurred day 90. Subsequently, infestation was followed decrease hectoliter weight on 180, carboxypeptidase activity 240, polyphenol oxidase catalase increased total starch decreased 270, while significant changes protein content, extractable concentration, phenylalanyl-aminopeptidase Zeleny sedimentation between 300 360 days The data indicate that S. granarius influenced as well grains, but the extent these mostly detectable at higher levels infestation. Among examined showed potential to be used early indicators infestation. Practical Applications Granary weevil, S. granarius, is one major grain-damaging insects. This primary infester feeds adult, or endosperm larvae causing economic losses, due unsuitability damaged for human food production. Although various methods detection stored have been applied worldwide, there still a need cheap indicative detecting insect study investigating temporal development shows could