Preparation of antioxidants from sugarcane molasses

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• 作者：Yongguang Guan ; Qiang Tang ; Xiong Fu ; Shujuan Yu ; Shaowei Wu ; Mingshun Chen
• 关键词：Supercritical fluid extraction with piecewise distillation separation ; Sugarcane molasses ; Antioxidants
• 刊名：Food Chemistry
• 出版年：1 June, 2014
• 年：2014
• 卷：152
• 期：Complete
• 页码：552-557
• 全文大小：1288 K

文摘

Supercritical carbon dioxide fluid extraction with piecewise distillation separation was used to obtain antioxidants from sugarcane molasses. Extraction pressure, time, temperature, flow rate of CO₂ and ethanol content were selected as the independent variables. Oxygen radical absorbance capacity was used to evaluate the antioxidant activity of the extract. Results showed that conditions to obtain the highest total oxygen radical absorbance capacity value of sugarcane molasses extract were determined to be an extraction pressure of 33.3 MPa, temperature of 43.3 掳C, time of 86.7 min, 90% ethanol content of sugarcane molasses and flow rate of CO₂ of 20 L/h. Under the conditions stated above, the experimental value was 2584.9. This study indicated that supercritical carbon dioxide fluid extraction with piecewise distillation separation can effectively extract antioxidants from sugarcane molasses.