Preparation of antioxidants from sugarcane molasses.
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 °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.
College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China.
Yongguang
Y
Guan
College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China.
Qiang
Q
Tang
College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China.
Xiong
X
Fu
College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou 510640, China. Electronic address: shujuanyu8@gmail.com.
Shujuan
S
Yu
College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China.
Shaowei
S
Wu
College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China.
Mingshun
M
Chen
D000975:Antioxidants / Q000032:analysis / Q000302:isolation & purification*; D025924:Chromatography, Supercritical Fluid / Q000295:instrumentation / Q000379:methods*; D057168:Distillation; D008965:Molasses / Q000032:analysis*; D011312:Pressure; D031786:Saccharum / Q000737:chemistry*; D013696:Temperature; D014866:Waste Products / Q000032:analysis*
D000975:Antioxidants; D014866:Waste Products
Antioxidants; Sugarcane molasses; Supercritical fluid extraction with piecewise distillation separation