2018年11月7日星期三

Preliminary study on combined drying technology of Litchi chinensis

Absrtact: Litchi dried fruit was processed by microwave drying equipment combined with hot air drying technology with fresh fruit litchi as raw material, which solved the problems of short shelf life and easy occurrence of pests of products made by traditional methods.
The results showed that the fresh litchi fruits of “Huaizhi” cultivar were dried to 40% by hot air after color protection treatment.
The quality of dried fruit samples with 60% water content and 800 W microwave average power was the best. With the prolongation of drying processing and storage time, the pulp color of “Huaizhi” litchi was gradually deepened.
Key words: “Huai Zhi” variety litchi; combined drying; microwave drying litchi; browning.
Litchi is native to southern China. Lichee can be grown in tropical and subtropical regions of the world. The litchi planting in China is mainly concentrated in Guangdong, Fujian, Guangxi and Hainan. “Huaizhi” litchi is a popular litchi variety with high yield, sweet and delicious taste, rich in nutrients needed by human body.

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