不同采收期对芒果常温贮藏品质的影响
The Effect of Harvest Stages on Ambient Storage Quality of Mango Fruits
为了对芒果的科学合理采收提供理论依据,以‘红芒6号’芒果为试验材料,探讨了不同采收期对芒果常温贮藏品质的影响,着重考察芒果常温贮藏过程中失重率、病果率、硬度、维生素C(Vc)、可溶性固形物(TSS)和可滴定酸(TA)含量及固酸比的变化。结果表明,过早采收的芒果,其TA和Vc含量较适时采收的要高,而TSS含量和固酸比则较低;过晚采收的芒果,其失重率和病果率高,果实软化快。笔者提出了‘红芒6号’芒果最佳的采收期是盛花期后120天,适宜采收的生理指标是TSS和TA的质量分数分别为6.40%和0.85%。
The effects of different harvest stages on postharvest quality of mango fruits (Mangifera indica L. ‘Hongmang No.6’) during storage at ambient temperature were studied to provide theoretical basis for rational harvesting of mango fruit. The changes of weight loss, decay index, flesh firmness, vitamin C (Vc), total soluble solids (TSS), titratable acid (TA) and TSS/TA of mango fruits were determined. The results showed that in mango fruits harvested too early, the TA and Vc levels were higher, and TSS and TSS/TA were lower than those harvested timely. However, in mango fruits harvested too lately, the weight loss and decay index were higher, and softening was faster than those harvested timely. These results suggested that the optimal harvest stage of ‘Hongmang No.6’ mango fruits was 120 days after full bloom and the suitable harvested physiological index were that the mass fraction of TSS and TA were 6.40% and 0.85% respectively.
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