Effects of Controlled Atmosphere Storage Time on Shelf Life Quality of Litchi
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Abstract:
An experimental platform with controlled atmosphere (CA) by liquid nitrogen (LN2) injection was applied to study the effects of CA storage time on storage quality and shelf life quality of litchi. The quality changes of Huaizhi litchi during CA storage was investigated and the storage quality of litchi samples stored at low or normal temperatures was also detected. The results showed that titratable acid (TA) content, color difference L* and a* value of the samples decreased more rapidly. In the former 7 days, mass loss rate and browning index f the samples increased more rapidly while good fruit rate, total soluble solids (TSS) content, and color difference b* value decreased more rapidly after a 14-day storage. With the extension of storage time and shelf life quality under the storage of room temperature and low temperature declined gradually. Moreover, the storage quality of litchi under low temperature decreased more slowly than at room temperature. Low temperature conditions showed remarkable influence on mass loss rate, good fruit rate and a*, but had a slight impact on browning index, TSS and TA. This research provided a reference for the study of preservation and market of litchi.
