Comparison of Changes in the Storage Quality among Different Late-maturing Blueberry Varieties
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Abstract:
In the present study, the respiration rate, ethylene production rate, rot rate, weight loss rate, color difference, soluble solid, total acid, total alcohol, total phenols and anthocyanin content of five different late-maturing blueberry varieties (Gardenblue, Baldwin, Powderblue, Tifblue and Brightwell) from Majiang (Guizhou) were determined, which were stored under 1±0.3 ℃ for 75 days. And then the changes of storage quality were compared and analyzed. The result showed that the soluble solids, total phenols and anthocyanin content of five kinds of blueberry declined in the earlier days then rose with prolonging storage time. No obvious fluctuation was observed in total acid. The rot rate, weight loss rate and colour difference showed a rising trend. Among them, Tifblue showed the highest rot rate because of high respiration rate, water content, and soluble solid decline tendency; anthocyanin content of Gardenblue kept the highest level; the rot rate of Powderblue was the lowest. The sequence of storability was as follows: Powderblue>Brightwell> Baldwin> Gardenblue> Tifblue.
