... processing involves the use of mer-cury lamps, which generate 90% of their energy at a wavelength of 253.7nanometers. Exposure of bacteria to UV results in cross-linking of the thymine dimers of the ... repair of DNA. The use of combinationtreatments is expected to be more effective both in eliminating pathogens and in retaining quality attributes of the product.49MICROWAVES The use of microwaves ... practices of planting, growing of fruit, harvesting, post-harvest handling, washing, and cooling and storage. P REVENTIVE M EASURES IN THE O RCHARD Contamination of fruits...