H2-FH-3-A flender group Helical gear box H2

Flender/Flender Gear Units/Helical gear box H2

aterial. Insects also play an active role in dissemination of storagefungi. The insect activity, notably by internal infestors, results in the generation of heatin the local areas. The hot spots cause moisture and temperature gradients in the grainmass that favor mold growth leading to deterioration of grains quality. The level of insect infestation in grain is one of the criteria for grain quality assess- ment. There are several methods to detect the insect infestation in grains (Table and in grain storage structures. Sampling and sieving, the oldest method, is not accurate for Table 2 Methods of Detection and Monitoring of Stored Grain Insects Method Remarks Nontrapping methods ELISA Species-specic; commercially usedAural or acoustic For hidden infestation; can be automatedNMR Still at experimental stageNIR For detecting mites Radiography For hidden infestation Sampling and sieving Widely adopted; not accurate at low-level infestation Specic gravity For hidden infestation; qualitative Cracking and oatation For hidden infestation Staining techniques Specic for Sitophilus spp. Ninhydrin reaction Egg and early larval stages not detectedUric acid analysis Ofcially accepted; time-consuming Carbon dioxide analysis Slow, not applicable for high-moisture grain Trapping methods Physical traps For adult beetlesPheromone traps Species-specic for moths and beetlesFood-based attractant traps Attracts several species; simple and cheaper 1 Rajendran detecting low-level infestations, yet it is commonly practiced in all developing nations. Specic gravity method or the oatation technique is simple qualitative method (notapplicable for hulled grains and for corn) for detecting internal infestation. In recent years,more attention has been focused on aural or acoustic techniques ( and enzyme-linkedimmunosorbent assay (ELISA)-based detection (. By use of the acoustic method infes- tation by Sitophilus spp. and . dominica can be detected. Automation in insect monitoring in grain