Potential of chlorophyll-rich feed ingredients to improve detection of fecal contamination in the abattoir.

The use of fecal fluorescence to improve detection of contamination of carcasses in the abattoir was previously reported. However, incidents of false negatives can result when animals are offered diets that contain little chlorophyll (e.g.

Quality of sour cream packaged in cups with different light barrier properties measured by fluorescence spectroscopy and sensory analysis.

Unlabelled: In this study, photooxidation of sour cream packaged in cups with different light barrier properties was investigated. The sour cream was light exposed for 36 h with a standard fluorescent light tube, simulating storage conditions in many Norwegian grocery stores. Three different cups were evaluated: a white cup, a cup with medium light barrier (LB), and a cup with high LB.

Effect of oxygen concentration on photo-oxidation and photosensitizer bleaching in butter.

The effect of headspace oxygen concentration and color of light on photo-oxidation and degradation of photosensitizers in butter was studied. Butter samples were stored under 0%, 0.4%, 0.