有机酸含量日变化白天高，夜间低。
The diurnal changes of their contents were higher in daytime and lower at night.
目的建立芙蓉李中总有机酸含量的质量评价方法。
Objective to establish the quality evaluation method of the total organic acids content of Furong plums.
2种古荔枝的可溶性蛋白和有机酸含量与大红袍差异不显著。
The contents of soluble protein and organic acid between 2 ancient litchi varieties had not significant difference with that in Dahongpao.
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