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Research of esterified modification and characterization of red radish pigment

Ning Zheng-xiang

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Abstract

The red radish pigment is a natural edible pigment with the characteristics of safety,free of side effect and antioxidant activity.However,the instability of this pigment limits its use in food industry.In this paper,the red radish pigment was modified by acetyl salicylic and the stability of the modified pigment was compared with natural pigment.Antioxidant activity was determined by ABTS(2,2'-Azinobis-(3-ethylbenzthiazoline-6-sulphonate))and phenanthroline methods.The result indicated that stability of modified pigment was improved significantly,while antioxidant activity kept high levels.

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What this paper is about

The red radish pigment is a natural edible pigment with the characteristics of safety,free of side effect and antioxidant activity.However,the instability of this pigment limits its use in food industry.In this paper,the red radish pigment was modified by acetyl salicylic and the stability of the modified pigment was compared with natural pigment.Antioxidant activity was determined by ABTS(2,2'-Azinobis-(3-ethylbenzthiazoline-6-sulphonate))and phenanthroline methods.The result indicated that stability of modified pigment was improved significantly,while antioxidant activity kept high levels.

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Available abstract

The red radish pigment is a natural edible pigment with the characteristics of safety,free of side effect and antioxidant activity.However,the instability of this pigment limits its use in food industry.In this paper,the red radish pigment was modified by acetyl salicylic and the stability of the modified pigment was compared with natural pigment.Antioxidant activity was determined by ABTS(2,2'-Azinobis-(3-ethylbenzthiazoline-6-sulphonate))and phenanthroline methods.The result indicated that stability of modified pigment was improved significantly,while antioxidant activity kept high levels.

Key concepts: Pigment, ABTS, Antioxidant, Chemistry, Salicylic acid, Food science, Biological pigment, Natural food

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