Study on the extraction and anti-oxidative activities of yellow pigment with microwave-assisted extraction from Hanzhong rapeseed flowers

SHI Juan; LI Hong-ying

doi:10.13386/j.issn1002-0306.2014.18.043

SHI Juan, LI Hong-ying. Study on the extraction and anti-oxidative activities of yellow pigment with microwave-assisted extraction from Hanzhong rapeseed flowers[J]. Science and Technology of Food Industry, 2014, (18): 236-240. DOI: 10.13386/j.issn1002-0306.2014.18.043

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Study on the extraction and anti-oxidative activities of yellow pigment with microwave-assisted extraction from Hanzhong rapeseed flowers

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The pigment was extracted from rapeseed flowers by microwave-assisted extraction technology. On the basis of single-factor experiments, the optimal operating conditions were obtained with orthogonal design.The optimum extraction conditions was established as follows:the concentration of ethanol 95%, extracted 30 s with microwave radiation, the reflux time was 15 min, the reaction temperature was 80℃ and the ratio of material to liquid 1∶40. The yellow pigment could inhibit the oxidant degree of the edible oil. The capacity to scavenge hydroxyl free radical and H2O2 increased as well as the concentration within a certain degree.

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Study on the extraction and anti-oxidative activities of yellow pigment with microwave-assisted extraction from Hanzhong rapeseed flowers

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