Preparation of Flavonoid-rich Hawthorn Juice with Cellulose Hydrolysis and Membrane Filtration
In this study, a new practical significant method of preparing flavonoid-rich juice from hawthorn (Crataegus pinnatifida) was established by cellulose hydrolysis and membrane filtration. Optimum conditions for enzymolysis were obtained with cellulose concentration of 1.25 g/L, hydrolysis temperature at 50 V, pH 3.5, and hydrolysis time for 120 min. After the hydrolysis, endocellular substances released were left for diffusing. Subsequent extraction was done at 70 °C for 90 min. The flavonoid content of hawthorn juke was above 1.83 g rut in equivalents / 100 mL juice. The optimal operation parameters for membrane filtration were at 20-25 °C with pressure from 0.10 MPa to 0.15 MPa and aperture size 0.02 /μm. The flavonoid content of hawthorn juice after membrane filtration rose to 4.03 g rut in equivalents / 100 mL juice.
hawthorn flavonoid cellulase membrane filtration
Junliang SUN Yuefeng FAN Gang LI Ruixiang ZHAO
School of Food Science, Henan Institute of Science and Technology
国际会议
The 2nd Conference on Horticulture Science and Technology(第二届园艺科学与技术学术会议 CHST 2010)
北京
英文
41-44
2010-12-18（万方平台首次上网日期，不代表论文的发表时间）