LI De-ying1, XI Wei1, JIA Xiao-hui1, CAO Ning1, ZHANG Hong2
(1 College of Life Science, Shaanxi Normal University, Xi′an 710062, Shaanxi, China; 2 Shaanxi Huasheng Corporation Fruit Company, Xi′an 710021, Shaanxi, China)
Abstract:
The effects of diphenylamine (DPA) with CA storage and 1-methylcyc-lopropene (1-MCP) with CA storage on the activity of lipoxygenase (LOX), the respiration, ethylene production, fruit firmness and total soluble solids of ‘Fuji’ apple were investigated the aromatic components in juice of ‘Fuji’ apple were extracted by solid phase mioroextr-action (SPME) and analyzed by GC-MS after 180d CA storage and 10d sheff cife. The results showed that 1-MCP treatment with CA storage restrained both the respiration and ethylene production of ‘Fuji’ apple remarkably, and kept fruit quality well, but DPA treatment with CA storage was not remarkable. The two treatments the restrained activity of LOX and production of fruit aroma. Compared with the control group, the esters of aroma component reduced 21.7% and 69.6% and the total aroma component reduced 17.9% and 56.4% respectively. After ten days′ shelf life, the total aroma component of the apple treated by DPA with CA storage and 1-MCP with CA storage reduced 72.5% and 35.3% compared with that of the control group. The restraint effect of 1-MCP treatment with CA storage is better than that of DPA treatment with CA storage.
KeyWords:
apple; aroma; solid phase mioroextr-action (SPME)
