Study on the Conditions to Increase the Content of β-Carotene in Carrot Juice

In this paper,the conditions to increase the content ofβ-carotene in carrot juice by the microwave treatment were studied.The results obtained showed that the optimal process parameters were the following: the output power of micromave was 600W,the proportion of material and liquid was 1∶3,the treatment time was 58s,the treatment times was 3 times,the verage increasing rate of β-carotene content compared to control group was 117.25%.