|
|
Article: Virgin-Olive-Oil Color in Relation to Sample Thickness and the Measurement Method
- Article from:
- JAOCS, Journal of the American Oil Chemists' Society
- Article date:
- November 1, 2008
- Author:
CopyrightCopyright AOCS Press Nov 2008. Provided by ProQuest LLC. (Hide copyright information)
|
Abstract
Color changes of virgin-olive-oil samples contained in cells with different thicknesses were analyzed. Ten different commercial virgin olive oils were measured at different sample thicknesses by two methods: conventional spectrophotometry (5.0, 10.0, and 50.0 mm path length cells), and spectroradiometry (cylindrical cells with 8.0, 11.2, 15.6, 19.6, 23.2, 27.2, 36.8 and 46.4 mm internal diameters) with samples placed on the floor of a commercial cabinet using a standard daylight source. The illumination in these two methods was different, resulting in notable color differences in the samples. Color variations of virgin olive oils depending on thickness do not follow the same trend ...