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The recovery of polyphenols from olive mill waste using two adsorbing vegetable matrices

Paper ID Volume ID Publish Year Pages File Format Full-Text
23916 43482 2012 5 PDF Available
Title
The recovery of polyphenols from olive mill waste using two adsorbing vegetable matrices
Abstract

Olive mill wastewater (OMW) is considered one of the most pollutive waste materials in the Mediterranean basin. However, its phenolic fraction should be recovered, since it has been shown to have incredible benefits for health. In the present study, the adsorbent and desorbent capacities of Azolla and granular activated carbon (GAC) were investigated. The GAC was found to be more efficient than Azolla in both the adsorption and the desorption of phenols. The total characterization of two powder products obtained from Azolla and GAC desorption is reported, together with their antioxidant and antiradical activities. In the Azolla powder product, total polyphenols were more than twice as numerous as those found in the GAC powder product. The GAC powder contained hydroxytyrosol in concentrations that were 3.5 times higher than those of Azolla. On the other hand, both powder products showed great antiradical activities: the IC50 was found to be 102 mg ml−1 for the Azolla and 199 mg ml−1 for the GAC powders respectively. The oxygen radical absorbance capacity was very high: 4097 μmol TE g−1Azolla powder product and 1277 μmol TE g−1 of GAC powder products.

Keywords
AA, antiradical activity; AAPH, 2,2′-azobis-2-methyl-propanimidamide, dihydrochloride; Ae, absorbance of the sample; As, absorbance of the standard solution; DFVA, desorbed fraction of virgin Azolla; DFWA, desorbed fraction of washed Azolla; DPPH, 2,2′-di
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The recovery of polyphenols from olive mill waste using two adsorbing vegetable matrices
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 157, Issue 4, 20 February 2012, Pages 573–577
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