EFFECT OF POSTHARVEST STORAGE
CONDITIONS ON SHELF LIFE
Improving quality is associated with quality control. Quality control
of horticultural products in postharvest can be achieved via determina-
tion of product-specific thresholds. These thresholds define, for exam-
ple, the permitted range of storage-mediated changes in the product
92 ENVIRONMENTAL EFFECTS ON PRODUCT QUALITY
FIGURE 5.6Relative changes in total pectic substances during postharvest treatment
in lettuce.