An industrial approach in the search of natural antioxidants from vegetable and fruit wastes

Peschel, W. and Sánchez-Rabaneda, F. and Diekmann, W. and et al, . (2006) An industrial approach in the search of natural antioxidants from vegetable and fruit wastes. Food Chemistry, 97 (1). pp. 137-150.

| Preview


Eleven fruit and vegetable byproducts and two minor crops were screened for industrial polyphenol exploitation potential by determination of their extraction yield, total phenolic content (TPC, Folin–Ciocalteu), and antioxidant activity (NTZ/hypoxanthine superoxide assay, ferric thiocyanate method). Extracts with the highest activity, economic justification and phenolic content were obtained from apple (TPC maximum 48.6 ± 0.9 mg Gallic acid equivalents g−1 dry extract), pear (60.7 ± 0.9 mg GAE g−1), tomato (61.0 ± 3.0 mg GAE g−1), golden rod (251.4 ± 7.0 mg GAE g−1) and artichoke (514.2 ± 14.9 mg GAE g−1). Apple, golden rod and artichoke byproducts were extracted at pilot plant scale and their antioxidant activity was confirmed by determination of their free radical scavenging activity (DPPH) and the inhibition of stimulated linoleic acid peroxidation (TBA and Rancimat® methods). The preservative effect of the three extracts (determination of the peroxide value in test crème formulations with 0.1–1.0% extract concentrations) was similar to the established antioxidants Oxynex® 0.1%, Controx® KS 0.15%, and butylated hydroxytoluene (BHT) 0.01%. This study demonstrates the possibility of recovering high amounts of phenolics with antioxidant properties from fruit and vegetable residuals not only for food but also cosmetic applications

Item Type: Article
Uncontrolled Keywords: Plant extracts; Agricultural wastes; Byproducts; Fruits; Vegetables; Antioxidant activity; Radical scavenging activity; Phenolic content
Author Affiliation: Pharmaplant Arznei- und Gewürzpflanzen Forschungs- und Saatzucht GmbH, Strasse am Westbahnhof, D-06556 Artern, Germany
Subjects: Environmental Science
Divisions: Other Crops
Depositing User: Ms K Syamalamba
Date Deposited: 28 Dec 2011 06:18
Last Modified: 28 Dec 2011 06:18
Official URL:

Actions (login required)

View Item View Item