果蔬脆片的水分含量、水分活度(Aw)及含油量的关系

脆片制品的水分含量与水分活度具有线性正相关关系,当含油量在20%左右时,脆片的水分含量低于7%就可以保证水分活度不高于0.65,从而使脆片的感官指标和耐藏性都比较好。在脆片含水量不变的情况下,其油含量的多少与水分活度的高低具有线性负相关关系。

The water content of the crisps and their water activity have a linear relationship,if the water content is hig her,the water activity is hig her also.When the oil content of the crisps is about 20%and water content is less than7%,the water activity is less than0.65.In this condition,the crisp's taste is g ood and they can be preserved for long er time.When the content of water is the same,the relationship between the oil content and water activity of crisp's is in neg ative linear relationship.