4)在树上正常成熟的柑橘类水果不含淀粉，在收获之后碳水化合物的组 成发生很小的变化。 (5)在加工过程中蔗糖可能水解成还原糖也是需要考虑的。 翻译句子

4) Citrus fruits that mature normally on trees do not contain starch, and there is very little change in the composition of carbohydrates after harvest. (5) The hydrolysis of sucrose into reducing sugars during processing also needs to be considered.