High Pressure Washing to Remove Decayed Tissue and Improve Quality of Clingstone Peach Puree

摘要

Physical and chemical characteristics were evaluated on brown rot and phomopsis decayed tissue in peaches, to investigate its removal by wash- ing with high pressure water sprays and to evaluate quality of puree made after washing. Washing treatments were at 345 to 758 kPa for up to 10, 1-s exposures. Results indicated brown rot tissue was darker, less yellow and had more soluble solids than the softer phomopsis decayed tissue. Nearly 100/100 of phomopsis decayed and 70/100 of brown rot tissue were removed with high pressure water treatment. Removal improved the quality of peach puree, but medium/large lesions were more detri- mental to quality than small lesions.