Cholesterol Oxidation: Presence of 7-ketocholesterol in Different Food Products

Cholesterol, a monounsaturated sterol present in food of animal origin, can be oxidized during food processing and storage, thus generating a series of oxidation products, which are well known for their negative biological effects. The presence of 7-ketocholesterol (7-k), one of the main cholesterol...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Food Composition and Analysis 2000-08, Vol.13 (4), p.625-631
Main Authors: Lercker, G., Rodriguez-Estrada, M.T.
Format: Article
Language:English
Subjects:
7-ketocholesterol
Biological and medical sciences
cholesterol oxidation
Human physiology applied to population studies and life conditions. Human ecophysiology
lipid oxidation
Medical sciences
Nutritional survey. Food supply and nutritional requirement
oxysterols
Sarcoidosis. Granulomatous diseases of unproved etiology. Connective tissue diseases. Elastic tissue diseases. Vasculitis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cholesterol, a monounsaturated sterol present in food of animal origin, can be oxidized during food processing and storage, thus generating a series of oxidation products, which are well known for their negative biological effects. The presence of 7-ketocholesterol (7-k), one of the main cholesterol oxidation products (COPs), was evaluated in biscuits, snacks, grated cheese, egg noodles, whole egg powder, whole milk powder, salami, raw and cooked meat. The content of 7-k varied depending on the type of matrix. Most food products showed a 7-k level lower than 2.0 ppm (expressed on sample basis), except for the beef meat (⩽3.5 ppm) and the whole egg powder (⩽4.6 ppm). In addition, beef meat and the meat products showed a higher percent ratio of cholesterol oxidation (⩽0.5%) as compared to the rest of the samples (⩽0.2%).
ISSN:0889-1575
1096-0481
DOI:10.1006/jfca.2000.0901