|
| Optimization of extraction of alcohol soluble matters from sunflower disk with pectin removed and its antioxidant activity |
| |
| DOI： |
| KeyWord:sunflower disk with pectin removed alcohol soluble matter extraction process antioxidant activity |
| FundProject:国家自然科学基金地区科学基金（31860423）；内蒙古农业大学食品科学与工程学院创新基金项目（2018-10） |
|
| Hits: 1111 |
| Download times: 0 |
| Abstract: |
| The sunflower disk residue with pectin removed was used as raw material to extract the alcohol soluble matters by ultrasonic assisted extraction. The optimal extraction process was determined by single factor experiment and orthogonal experiment and its antioxidant activity was studied. The results showed that the optimal extraction conditions were obtained as follows: ratio of material to liquid 1∶ 17, ethanol volume fraction 70%, ultrasonic time 30 min, extraction temperature 60 ℃ and extraction time 1.0 h. Under the optimal conditions, the yield of alcohol extract was 20.32% and its DPPH free radical scavenging rate was 7213%. The antioxidant activity research showed that with the alcohol extract mass concentration increasing, its DPPH free radical scavenging rate was closer to VC,while the hydroxyl radical and ABTS radical scavenging rates were lower than VC,and different free radical scavenging rates and alcohol extract mass concentration were dose-dependent. So the alcohol extract of sunflower disk with pectin removed had good antioxidant activity and could be used as a new functional food ingredient. |
| View full text View/Add Comment Download reader |
| Close |
|
|
|
