HIGH HYDROSTATIC-PRESSURE EFFECTS ON VEGETABLE STRUCTURE

Cryo-fracture scanning electron microscopy revealed the changes that c auliflower and spinach leaves undergo after treatment with high hydros tatic pressure. High pressure changed cell permeability and enabled mo vement of water and metabolites from inside to outside of the cell. Th e ultrastructure showed that parenchyma organization disappeared in sp inach leaf and cavity formation occurred after treatment. However, cau liflower exhibited a firm structure with a soaked appearance and would be more suitable than spinach for high hydrostatic pressure treatment .