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Study on Extraction Technology of Pectin from Pitaya Peel

YANG Chang-peng, CHEN Zhi-li, WANG Xiu-fang, LI Xiao-ming (Guangxi Agricultural Vocation-Technical College, Nanning 530007, China)  
Single factor and orthogonal trial were designed to study the effects of the ratio of solution/material, pH value of solution, temperature and time on the pectin extraction of pitaya peel. The results showed that the optimal technological conditions were 1∶8 of solution/material ratio, pH value at 2.0, temperature at 100 ℃ and extraction time for 120 min.
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