一种基于浊点萃取技术从甜菜糖蜜中分离回收甜菜碱的新方法。
A new approach for separation and recovery of betaine from beet molasses based on cloud point extraction technique.
作者信息
Mohammadzadeh Mozhgan, Honarvar Masoud, Zarei Ali Reza, Mashhadi Akbar Boojar Masoud, Bakhoda Hossein
机构信息
1Department of Food Science and Technology, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran.
2Faculty of Chemistry and Chemical Engineering, MalekAshtar University of Technology, Tehran, Iran.
出版信息
J Food Sci Technol. 2018 Apr;55(4):1215-1223. doi: 10.1007/s13197-017-2999-4. Epub 2018 Mar 5.
The aim of this work was to explore the possibility of the application of cloud point extraction (CPE) method in micelle media to recovery betaine from beet molasses. Response surface method was employed to assess the effects of surfactant concentration, molasses concentration, incubation time, pH, electrolyte concentration, mixing time, and surfactant type on efficiency of betaine recovery from beet molasses. Also, a mathematical model was developed to predict the effect of each variable and their interactions on the efficiency of betaine recovery. The model showed that best surfactant was Triton X-114 and under the optimum conditions, betaine recovery from beet molasses was achieved up to 80% when three CPE steps with total of 1.5% (w/v) of surfactant were used. Subsequently, betaine was recovered nearly 100% from surfactant rich phase after adjusting pH at 2.5 and re-incubation at 40 °C. The results showed that the proposed method is suitable for extraction of betaine from beet molasses.
这项工作的目的是探索在胶束介质中应用浊点萃取（CPE）方法从甜菜糖蜜中回收甜菜碱的可能性。采用响应面法评估表面活性剂浓度、糖蜜浓度、孵育时间、pH值、电解质浓度、混合时间和表面活性剂类型对从甜菜糖蜜中回收甜菜碱效率的影响。此外，还建立了一个数学模型来预测每个变量及其相互作用对甜菜碱回收效率的影响。该模型表明，最佳表面活性剂是Triton X-114，在最佳条件下，当使用总共1.5%（w/v）表面活性剂的三步CPE时，从甜菜糖蜜中回收甜菜碱的效率可达80%。随后，在将pH值调至2.5并在40℃下重新孵育后，从富含表面活性剂的相中回收甜菜碱的效率接近100%。结果表明，所提出的方法适用于从甜菜糖蜜中提取甜菜碱。
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