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Stability of Virgin Olive Oil. 1. Autoxidation Studies
Abstract
Virgin olive oil samples with similar oxidative stabilities and fatty acid compositions were stored for 24 months. Changes in the lipid substrate were followed by peroxide value and K(232) measurements. HPLC was used to evaluate changes in the alpha-tocopherol, pigment, and squalene contents. Total polar phenol content was measured colorimetrically. The loss of alpha-tocopherol and carotenoids was comparable with that of polar phenol content, suggesting an active participation in autoxidation. The limited role of squalene in autoxidation was further confirmed using an olive oil model and in the presence of alpha-tocopherol. Pheophytin a degradation was high, although spectrometric estimation of chlorophyll content did not indicate so. Evaluation of pheophytin a activity at three different levels of addition on the oil model indicated a concentration-dependent antioxidant role more pronounced at elevated temperatures, which could be partially due to the activity of certain degradation products.
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Cited by
Antioxidant activity of caffeic acid (3,4-dihydroxycinnamic acid)
Gülçin, İ. (2006) · Toxicology · doi:10.1016/j.tox.2005.09.011 · Cited by 1,157
Antimicrobial and antioxidant properties of phenolic acids alkyl esters
Merkl, R., Hrádková, I., Filip, V., & Šmidrkal, J. (2010) · Czech Journal of Food Sciences · doi:10.17221/132/2010-cjfs · Cited by 278
Squalene – biochemistry, molecular biology, process biotechnology, and applications
Spanova, M., & Daum, G. (2011) · European Journal of Lipid Science and Technology · doi:10.1002/ejlt.201100203 · Cited by 268
Mikrou, T., Pantelidou, E., Parasyri, N., Papaioannou, A., Kapsokefalou, M., Gardeli, C., & Mallouchos, A. (2020) · Molecules · doi:10.3390/molecules25173818 · Cited by 59
Metadata
- Authors
- Psomiadou, E., & Tsimidou, M.
- Venue
- Journal of Agricultural and Food Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-01-18
- Volume
- 50
- Issue
- 4
- Pages
- 716-721
- ISSN
- 0021-8561 (ISSN-L)
- 1520-5118
- OpenAlex
- W1986531259
- Cited by
- 216
- References
- 0
- FWCI
- 4.16
- Type
- journal article
- Language
- en
- Open access
- closed
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