| 钟杨生，陈恒文，陈芳艳，林健荣.超声-微波协同萃取法提取桑叶γ-氨基丁酸的工艺研究[J].广东农业科学,2018,45(8):107-112 |
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超声-微波协同萃取法提取桑叶γ-氨基丁酸的工艺研究 |
| Study on the microwave-ultrasonic assisted extration process of mulberry leaf γ-aminobutyric acid |
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| DOI：10.16768/j.issn.1004-874X.2018.08.016 |
| 中文关键词: 桑叶 γ- 氨基丁酸 超声- 微波协同萃取 Box-Behnken 响应面设计 |
| 英文关键词: Mulberry leaves γ-aminobutyric acid Ultrasonic and microwave-assisted extraction method Box-Behnken effect surface design |
| 基金项目:国家公益性行业（农业）科研专项（201403064）; 广东省科技计划项目（2017A020208044） |
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| 中文摘要: |
| 桑叶尤其是桑嫩芽中富含γ-氨基丁酸（γ-aminobutyric acid，GABA)，为开发利用桑叶
GABA，采用超声-微波协同萃取法提取桑叶GABA。通过单因素和Box-Behnken 试验，探究提取时间、料
液比、提取温度、超声波功率和微波功率对桑叶GABA提取量的影响。结果表明，提取时间、料液比及提
取温度对桑叶GABA的提取影响较大，超声-微波协同萃取法提取的最佳技术参数为料液比1∶34 、微波功
率为144 W、超声波功率为50 W、提取时间为165 s，在此工艺条件下GABA提取量为5.83 mg/g。可见，采
用超声-微波协同萃取法提取桑叶GABA具有提取率高、提取时间短等优点。 |
| 英文摘要: |
| Mulberry leaf, expecially tender shoot, is rich in γ-aminobutyric acid (GABA). In order to
develop and utilize mulberry leaf γ-aminobutyric acid (GABA) ,mulberry leaf GABA was extracted from mulberry
leaves using pulsed ultrasonic and microwave-assisted extraction method. In this study, the effects of extration
time, material-solvent ratio, extraction temperature, ultrasonic power and microwave power on extraction yield were
investigated through single-factor experiment and box-behnken experiment. The results of single-factor experiment
and Box-Behnken test indicated that the extraction time, material and liquid ratio and extraction temperature had
a greater influence on the extraction of GABA from mulberry leaves. The best parameters of ultrasonic-microwave
collaborative extraction were : material-solvent ratio 1 (g) :34 (mL), microwave irradiation power at 144 W, ultrasonic
power at 50 W, and extraction time at 165 s. With this extraction condition, GABA yield was 5.83 mg/g. This method
has the advantages of high extraction rate and short extraction time. |
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