|
| Antioxidant activity of wild dandelion extracts from Qinling mountains and its effects on oxidation stability of flaxseed oil |
| |
| DOI：10.12166/j.zgyz.1003-7969/2020.05.009 |
| KeyWord:wild dandelion antioxidant capacity natural antioxidant flaxseed oil oxidation stability |
| FundProject:国家自然科学基金项目（81360619） |
|
| Hits: 1397 |
| Download times: 673 |
| Abstract: |
| The total active constituents in the wild whole dandelion grass, growing in Qinling mountains, were extracted by simultaneous ultrasonic and cellulases enzymatic treatment, and the DPPH radical scavenging capacity, superoxide anion radical scavenging capacity, hydroxyl radical scavenging capacity and total reduction capacity of the extracts were determined and compared with synthetic VC. In addition, the effects of dandelion extracts on the oxidation stability of flaxseed oil were evaluated by accelerated oxidation method, and compared with BHT and rosemary extract. The results showed that the dandelion extracts had higher antioxidant activity than synthetic VC, the antioxidant capacity order of the three antioxidants was rosemary extract(700 mg/kg)> dandelion extracts(700 mg/kg)> BHT(200 mg/kg), and there was a positive correlation between the dosage of dandelion extracts and the oxidative stability of flaxseed oil. Therefore, the active constituents extract of wild dandelion grass from Qinling mountains could be used as a natural antioxidant to delay the oxidation of edible oil. |
| View full text View/Add Comment Download reader |
| Close |
|
|
|
