Polyphenolic Content in Olive Oil Waste Waters and Related Olive Samples

The production of olive oil yields a considerable amount of waste water, which is a powerful pollutant and is currently discarded. Polyphenols and other natural antioxidants, extracted from olives during oil extraction process, partially end up in the waste waters. Experimental and commercial olive...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2001-08, Vol.49 (8), p.3509-3514
Main Authors: Mulinacci, N, Romani, A, Galardi, C, Pinelli, P, Giaccherini, C, Vincieri, F. F
Format: Article
Language:English
Subjects:
Antioxidants - analysis
Biological and medical sciences
Chromatography, High Pressure Liquid
Fat industries
Flavonoids
Food industries
Fundamental and applied biological sciences. Psychology
Industrial Waste
Olive Oil
Phenols - analysis
Plant Oils - chemistry
Polymers - analysis
Polyphenols
Use and upgrading of agricultural and food by-products. Biotechnology
Water
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Summary:The production of olive oil yields a considerable amount of waste water, which is a powerful pollutant and is currently discarded. Polyphenols and other natural antioxidants, extracted from olives during oil extraction process, partially end up in the waste waters. Experimental and commercial olive oil waste waters from four Mediterranean countries were analyzed for a possible recovering of these biologically interesting constituents. Identification and quantitation of the main polyphenols were carried out by applying HPLC-DAD and HPLC-MS methods. Representative samples of ripe olives were also analyzed at the same time to correlate, if possible, their polyphenolic profiles with those of the corresponding olive oil waste waters. The results demonstrate that Italian commercial olive oil waste waters were the richest in total polyphenolic compounds with amounts between 150 and 400 mg/100 mL of waste waters. These raw, as yet unused, matrices could represent an interesting and alternative source of biologically active polyphenols. Keywords: Olive oil waste waters; polyphenols; HPLC-DAD
ISSN:0021-8561
1520-5118
DOI:10.1021/jf000972q