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【答案】应助回帖
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爱与雨下: 金币+1 2015-05-08 20:14:34
110147加油(RXMCDM代发): 金币+25, 多谢应助！ 2015-10-04 20:05:31
RXMCDM: 翻译EPI+1 2015-10-04 20:05:35
For comprehensive utilization of perilla resource and lengthening the production chain of perilla process, the optimal technological conditions of perilla flavone extraction using ultrasonic wave were determined through the single factor experiment and response surface experiment based on the flavonoid content.
The results showed that the optimal technological conditions were determined as following: ultrasound temperature 70℃, ethanol concentration 50% and ultrasound time 30min, and under which the flavonoid content was 52.1mg/g.
Then, the perilla flavone that was extracted at the optimal technological conditions was initial purified by using the adsorption rate and desorption rate of macroporous resin as the reference.
Experiment showed the D-101 macroporous resin has a good absorptive property and desorption performance to perilla flavone,
after the absorptive enrichment of which, the total flavonoid content of the samples could reach 110.235mg/g.
Finally,the antioxidant effect of extracting solution of the initial purified perilla flavone to lard was evaluated based on iodometry.
The results showed that perilla flavone could effectively inhibit the oxidation of lard in certain range of concentrations. |
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