Optimizing the Extraction of Anthocyanins from Pitaya(Hylocereus undatus)Pericarp

• 作者: Caimei YAN Guoyu ZHOU Shuiming CHENG Xia ZENG
• 来源期刊: 农业生物技术:英文版
• 学科: 数学
• 关键词: Hylocereus undatus pericarp ANTHOCYANIN Ultrasound-assisted extraction Response surface design
• 年，卷（期）: 2020,（4）
• 页码范围: 168-173
• 页数: 6页
• 分类号: O17

摘要

[Objectives]This study was conducted to confirm the existence of anthocyanins in pitaya(Hylocereus undatus)pericarp and optimize the extraction condition.[Methods]Single-factor tests were carried out on five factors:ethanol concentration,extraction temperature,ultrasonic power,solid-to-liquid ratio and extraction time.Based on the single-factor test results,four factors and three levels of process conditions were optimized by Box-Behnken design test.[Results]Anthocyanins exist in the pericarp of pitaya,and the optimum conditions were extraction temperature 49℃,ultrasonic power 120 W,extracted time 2 h and ethanol concentration 60%.Under these conditions,the average yield of anthocyanins was 80 mg/100g.[Conclusions]This study provides a theoretical basis for the extraction of anthocyanins from the pericarp of red-flesh pitaya.