H2-VH-11-A flender pty ltd Helical gear box H2

Flender/Flender Gear Units/Helical gear box H2

1 carrier which is mixture ofaromatic hydrocarbons. The volatiles of potatoes treated with each of these inhibitors were investigated in an attempt to determine why signicant quantities of french fries made from Russet Burbank potatoes grown and stored in Manitoba had developed off-avorsand were unmarketable (. Sensory evaluations showed that off-avors were associatedwith potatoes that had been treated with the CIPC in propylene glycol and HiSol 1 carrier.Headspace GC proles from the off-avored and pleasantly avored potatoes did notcontain volatiles usually associated with earthy, musty avors. Rather, it was determinedthat six known potato volatiles were present in concentrations 2 to 1 times higher than normal. All six were benzene derivatives and three of them are known to be the major components of the HiSol 1 formulation. The authors speculate as to the possible mecha-nisms of avor changes associated with differences in concentrations of these compoundsand not that aromatic compounds from fuel, pesticides, and decaying plant material maybe accumulated by crops by adsorption. Volatile Monitoring in Storage 5 Treatment of strawberries with acetaldehyde (AA) vapor has been shown to suppress the growth of Botrytis cinerea andRhizopus stolonifer (. Dipping in AA can improve color ( and inhibits mold development (3,. However, AA treatments also alterthe volatile proles of strawberries and many other fruits, primarily because this compoundis metabolized when it diffuses into the tissues. The changes in the volatile prole depend on the concentration of AA used and the treatment duration (. Moreover, the nature of the changes seems to depend on the biochemical pathways involved for each aroma oravor constituent. The increase of certain volatiles may be linear with treatment time orconcentration, whereas others may level off or even decrease after the initial rise overthe same range of conditions. The authors reported the development of off-avors in straw-berr