空间电场结合乙烯吸收剂对西梅采后贮藏品质及生理的影响

Effects of Space Electric Field Combined with Ethylene Absorbent on Quality and Physiology of Prune Fruit during Postharvest Storage

以西梅果实为材料,经空间电场结合乙烯吸附剂处理,贮藏于-1.5~1.0℃的低温环境中,研究其对西梅贮藏期果实硬度、可溶性固形物含量、可滴定酸含量、抗坏血酸含量、失重率、呼吸强度、细胞渗透率的影响。结果表明,空间电场结合乙烯吸附剂能够显著抑制果实硬度的降低,保持果实可溶性固形物含量,延缓可滴定酸及抗坏血酸含量的降低,贮藏第90天时,果实硬度及可溶性固形物含量分别较对照高55.18%、12.87%(P<0.05)。同时空间电场结合乙烯吸附剂处理与对照相比显著延迟呼吸高峰的出现,延缓细胞膜渗透率的增加,降低果实失重率(P<0.05),对不同处理西梅果实的品质及生理指标的测量结果进行对比,发现电场结合乙烯吸附剂处理能够保持西梅果实贮藏期良好的品质。

In this study,prunes were used as the experimental material and subjected to a combined treatment of spatial electric fields and ethylene adsorbents.The prunes were subsequently stored in a low-temperature environment ranging from-1.5℃to 1.0℃to evaluate the effects on various postharvest quality parameters.The primary objective was to determine the impact of the treatment on fruit hardness,soluble solids content,titratable acidity,ascorbic acid content,weight loss,respiration rate,and cell membrane permeability throughout the storage period.The results demonstrated that the integrated treatment of spatial electric fields and ethylene adsorbents significantly mitigated the reduction in fruit hardness and preserved the soluble solids content and delayed the decrease of titrated acid and ascorbic acid content.Specifically,after 90 days of storage,the fruit hardness and soluble solid content were 55.18%and 12.87%higher than those observed in the control group,respectively(P<0.05).Furthermore,the treatment notably delayed the onset of the respiratory peak and curbed the increase in cell membrane permeability,leading to a significant reduction in fruit weight loss(P<0.05).The comparative analysis of the quality and physiological indices of prunes subjected to different treatments revealed that the application of electric fields in conjunction with an ethylene adsorbent effectively maintained superior fruit quality during the storage period.