[Objective]The present experiment was conducted to investigate the effects of waxing on quality and appearance of Tiancao citrus fruits in order to provide the references for scientific storage of postharvest Tianeao citrus fruits. [Method]Decco Fruitshine 402F wax, FMC 890 wax and self-prepared wax were used for waxing Tiancao citrus fruits at ambienl temperature after treated with 2% SOPP for 5-8 min. Non-waxed fruits were also stored at ambient temperature as control. The appearance and quality of all treated fruits were comparatively analyzed. [Result]At the initial storage stage, fruit brightness was the same among all ihe treatments, however in late period, wax-treated ones were much brighter than the control, 402F and FMC890 could significantly improve brightness. Wax, particularly self-prepared wax could significantly reduce water loss, but as time went on, the difference between wax-treated fruits and control became smaller and smaller. During the entire period of ambient-temperature storage, hardness of fruit, soluble solid content and titratable acid content of all the treatments showed a descending trend. After 34-day storage, rotten rale remained the same under different treatments. [Conclusion]Compared to fruits treated with 402F and FMC390, self-prepared wax showed better ef-fect on reducing weight loss and fresh-keeping, and similar effect on soluble solid content and titratable acid content, however, self-prepared wax still needs improvement in promoting fruit brightness..%[目的]探讨蜡液处理对天草常温贮藏果实外观质量和内在品质的影响,为天草果实采后的科学贮藏提供理论依据.[方法]以天草果实为试验材料,经2％ SOPP处理5～8 min后,分别采用Decco Fruitshine 402F(简称402F)、FMC890和自备蜡进行蜡液处理,以未涂蜡果实作空白对照,常温贮藏,并对各处理果实的外观质量和内在品质进行对比分析.[结果]天草果实常温贮藏前期,各处理果实亮度无显著差异,贮藏后期蜡液处理却显著高于空白对照,且402F、FMC890可明显提高果实亮度；蜡液处理能显著减少果实贮藏过程中水分的散失,以自备蜡最佳,但随着贮藏时间延长,蜡液处理与空白对照之间的差异越来越小；在整个常温贮藏期间,无论是蜡液处理还是空白对照处理,果实硬度、果实可溶性同形物和可滴定酸含量均呈显著下降趋势；各处理贮藏34 d后果实腐烂率无显著差异.[结论]自备蜡与其他两种蜡液(402F和FMC890)相比,对减少天草果实失重和保持果实新鲜度效果较好,对果实可溶性固形物和可滴定酸含量的影响相近,但在提高果实亮度方面仍需进一步改进.
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