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Black carrot (Daucus carota ssp. sativus) juice: Processing effects on antioxidant composition and color

Paper ID Volume ID Publish Year Pages File Format Full-Text
19397 43062 2011 5 PDF Available
Title
Black carrot (Daucus carota ssp. sativus) juice: Processing effects on antioxidant composition and color
Abstract

Black carrot, a potential source of anthocyanin pigment, has high antioxidant activity. The effect of pre-press maceration treatment with different doses of cell wall degrading enzyme pectinase (Aspergillus niger Teigh) on antioxidant composition of black carrot juice was investigated. Enzyme-assisted processing significantly (p < 0.05) improved the antioxidant composition of black carrot juice. There was an overall increase of 33% in juice yield, 27% in total phenolics and 46% in total flavonoids. The total anthocyanin content in black carrot juice was almost doubled. The in vitro total antioxidant activity in black carrot juice extracted through enzyme-assisted processing was 30.0 and 62.0 μmol TE/mL in ferric reducing antioxidant power (FRAP) and cupric reducing antioxidant capacity (CUPRAC) assays, respectively.There was 30% increase in total antioxidant activity of black carrot juice extracted with enzyme over straight pressed juice. The results indicate that tailoring of specific enzyme mixtures can yield antioxidant rich juice products. Optimizing a strategy for extraction of phenolic rich juice from black carrots can offer an opportunity for its utilization in developing novel functional beverages with enhanced color appeal and high antioxidant activity.

Research highlights▶ Enzyme-assisted processing for improved antioxidant content in black carrot juice. ▶ Benefits of enzyme-assisted processing for high anthocyanin content in black carrot juice. ▶ Processing of black carrot juice.

Keywords
Anthocyanin; Antioxidant activity; Black carrot juice; Enzyme-assisted processing; Phenolics; Color
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 89, Issue 4, October 2011, Pages 482–486
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us