Measuring pork color: effects of bloom time, muscle, pH and relationship to instrumental parameters

To evaluate factors affecting pork color, the gluteus medius (GM), longissimus lumborum et thoracis (LT), semimembranosus (SM), biceps femoris (BF), and triceps brachii (TRI) muscles from pork carcasses of varying ultimate pHs were allowed to bloom for 30 min. L*, a*, and b* values, hue angle, chrom...

Full description

Saved in:
Bibliographic Details
Published in:Meat science 2001-02, Vol.57 (2), p.169-176
Main Authors: Brewer, M.S, Zhu, L.G, Bidner, B, Meisinger, D.J, McKeith, F.K
Format: Article
Language:English
Subjects:
Biological and medical sciences
Bloom
Food industries
Fundamental and applied biological sciences. Psychology
General aspects
Meat and meat product industries
Methods of analysis, processing and quality control, regulation, standards
Muscle
Pork color
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:To evaluate factors affecting pork color, the gluteus medius (GM), longissimus lumborum et thoracis (LT), semimembranosus (SM), biceps femoris (BF), and triceps brachii (TRI) muscles from pork carcasses of varying ultimate pHs were allowed to bloom for 30 min. L*, a*, and b* values, hue angle, chroma and visual color were determined. Color was evaluated using HunterLab (illuminants A, C, D 65 and F) and Minolta (illuminants C and D 65) Spectrocolorimeters. LT had the highest L* value (51.31; TR=39.93) and hue angle (59.36; TR=46.94), and the lowest a* (7.52; TR=12.88) value. L* value was unaffected by bloom time; hue angle stabilized after 5 min, a* and b* values after 10 min and chroma after 20 min. Using the Minolta/illuminant D65, visual color best correlated with b* and L* values ( r=−0.94 and −0.89) of LT. Using the Hunter/illuminant C, visual color correlated with L* value of LT, GM, BF and SM ( r >−0.90 for each). Overall, the instrumental measure that best related to visual color was L* value.
ISSN:0309-1740
1873-4138
DOI:10.1016/S0309-1740(00)00089-9