Desain dan Kinerja Unit Perlakuan Uap Panas (VHT) Untuk Disinfestasi Lalat Buah pada Penanganan Pascapanen Mangga
Abstract: Formerly, chemical
fumigation was used for disinfestation treatment, but now had been replaced by chemical-free
disinfestations treatment such as vapor heat treatment (VHT). The objectives of
this research were (1) to design the VHT Unit and testing its performances, and
(2) to study the effect of the VHT method and waxing on the fruit quality
during storage of mango. The designs of VHT unit consist of water tank, flter, heater,
water pump, differential pressure fan, atomizer, control panel and treatment
chamber. Performance of the unit showed that the temperature of the VHT chamber
increased from ambient temperature of 30OC to setting point of 47OC in 70
minutes. Relative humidity of the VHT chamber was very high (more than 90%)
indicating the VHT unit was successful in being used for fruitfly
disinfestations of fruit product. Using setting point of 46.5OC, the mango
fruit core temperature reached temperature of 45.5-46.3OC in 130 minutes. Mango
‘Gedong gincu’ were treated at 46.5OC for 10, 20, 30 minutes and control and
then followed by waxing. The results showed that VHT of 10-30 minutes were not
signifcantly affect the fruit quality. There were no signifcant changes in the
fruit weight losses, hardness, color, soluble solid content, water content and
vitamin C. VHT at 46.5OC for 20-30 minutes was effective to kill the fruitfly
infested inside the mangos and VHT followed by waxing was able to maintain
mango quality during storage.
Penulis: Rokhani Hasbullah,
Agus Sutejo, Astu Unadi3, Suparlan
Kode Jurnal: jppertaniandd090109