Effects of 1-MCP Combined with High Concentration CO2 Short Stimulation on Postharvest Softening of Qingpi Figs
In this study,with the use of Qingpi figs of Weihai,Shandong province as the experimental material,the com-bined effects of 1-methylcyclopropene(1-MCP)and high concentration of CO2 short treatment on storage quality of Qingpi figs was investigated.The results showed that compared with the control(CK)group,not only 1-MCP and high concentration of CO2 alone but also combined treatment could inhibit the postharvest respiration intensity,fruit softening and decay rate of Qingpi figs,decreased the content of polygalacturonase(PG),the enzyme activities of pectin methylesterase(PME),cellulase(Cx)and β-Glucosidase(β-Glu),maintain fruit color and firmness.Among them,the combined treatment possessed the best effect.After 20 d storage,the samples of combined treatment presented 1.74 N of the firmness.The protopetin content was 38.4%higher than that of the CK group.Meanwhile,the pectin methylesterase and water-soluble pectin of sam-ples with combineded treatment were only 79%and 80%of CK group.Therefore,the study has provided theoretical basis for anti-softening technology for Qingpi fig.
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