02451naa a2200349 a 450000100080000000500110000800800410001902200140006002400500007410000230012424501130014726000090026052013960026965000110166565000190167665000270169565000180172265000260174065000180176665000080178465000190179265300150181165300220182665300350184865300270188370000160191070000200192670000220194670000200196870000220198877300910201020912852018-05-09       2018    bl uuuu     u00u1 u    #d  a1807-19297 a10.1590/1807-1929/agriambi.v22n2p125-1302DOI1 aVASCONCELOS, O. C.  aEnvironmental variables in packing houses and their effects on the quality of grapes.h[electronic resource]  c2018  aThe aim of this study was to characterize the thermal environment in the selection and packing areas of a packing house and its effects on the quality of table grapes produced in the São Francisco Valley, Brazil. The thermal environment was monitored during the winter and summer seasons. The highest value of air temperature (Tair) and the lowest relative humidity (RH) observed in the packing house were 35 °C and 40.0%, respectively, obtained during the summer, for 8 h. After observing the thermal environment data of the packing house, simulations were performed to evaluate the effect of the ideal environmental storage conditions and observed thermal conditions on the postharvest quality of ?Thompson? grapes. Grapes were harvested and stored directly at the ideal temperature and RH of 0 °C and 90%, respectively, or previously exposed to a temperature of 35 °C and RH of 40% for 8 h, the thermal environment observed in the evaluated packing house, followed by storage at 0 °C and 90% RH. Fruit exposure to high temperature and low RH before the ideal storage conditions resulted in higher loss of berry firmness and weight, along with increased soluble solids and dry matter content of rachis and berry. Based on these results, the environmental conditions observed in the packing house result in berry dehydration, which accelerates the loss of fruit quality during storage.  aGrapes  aPacking houses  aPostharvest technology  aArmazenamento  aControle de Qualidade  aPós-Colheita  aUva  aVitis Vinifera  aAmbiência  aCasa de embalagem  aEspacialização pós-colheita  aVale do São Francisco1 aDACANAL, C.1 aTURCO, S. H. N.1 aFREITAS, S. T. de1 aRAMOS, C. M. C.1 aLIMA, P. M. L. de  tRevista Brasileira de Engenharia Agrícola e Ambientalgv. 22, n. 2, p. 125-130, 2018.