Table 1. Analytical protocols for determination on quality characteristics of meat

Meat product Experimental items Principles References
pH Direct puncture method Determining pH of muscle homogenates using pH meter equipped with electrode. Mäki-Petäys et al., 1991
NIR spectrophotometry Different chemical bonds absorb or emit different wavelengths of light when meat is irradiated by continuous near infrared light. Anderson, 2007
Color Traditional visual color Direct assessment of meat color by human visual appraisal. Carpenter et al., 2001
Instrumental color Wavelengths absorbed or reflected by light striking meat surfaces by colorimeter. Hunt, 1980
Myoglobin redox forms Wavelengths for determining myoglobin redox forms including metmoyglobin (545–503 nm), deoxymyoglobin (565–557 nm), and oxymyoglobin (572–582 nm) using spectrophotometer. Tang et al., 2004
Computer vision Computer equipped with a digital camera analyzes meat visual color. O'Sullivan et al., 2003
WHC Drip loss Measuring the contents of released water from myofibrils or intracellular space to extracellular space in meat. Brown et al., 2000
Cooking loss Evaluating the levels of fluid released from meat after cooking process. Oswell et al., 2021
Expressible moisture Measuring the water retention capacity over the course of processing and post-purchase by consumer. Oswell et al., 2021
Vis-NIR spectroscopy To characterize the interaction between electromagnetic radiation generated at specific wavelengths (400–3,000 nm) and the physicochemical properties. He et al., 2014; Prevolnik et al., 2010
1H NMR The characterization of the dynamic states of water by transverse relaxation time using NMR. Brown et al., 2000
Tenderness Sarcomere length Light interference of meat irradiated by helium neon laser. Koolmees et al., 1986
Warner-bratzler shear force Measuring the maximum force as a function of V-blade movement and the compression to shear meat samples. Novaković and Tomašević, 2017
Fatty acid profile GC analysis Released free fatty acids require to be transmethylated to form fatty acid methyl esters. Fisk et al., 2014
Marbling Visual appraisal Direct assessment of marbling in meat by human visual appraisal. Cheng et al., 2015
Chemical analysis The extraction of fat by adding a solvent to a meat sample. Cheng et al., 2015
NIR spectrophotometry Different chemical bonds absorb or emit different wavelengths of light when meat is irradiated by continuous near infrared light. Prevolnik et al., 2011
NMR The characterization of the dynamic states of water by transverse relaxation time using NMR. Brown et al., 2000
Computer vision Computer equipped with a digital camera analyzes meat visual color. Chen et al., 1989
Lipid oxidation PoV Measuring the levels of peroxides including aldehydes, ketones, alcohols, and short-chain hydrocarbon. Swoboda and Lea, 1958
TBARS value Measuring the levels of malondialdehyde in meat and meat products. Tarladgis et al., 1960
NIR spectrophotometry, near-infrared spectrophotometry; WHC, water holding capacity; Vis-NIR, visible-near infrared reflectance; NMR, nuclear magnetic resonance; GC, gas chromatography; PoV, peroxide value; TBARS value, thiobarbituric acid reactive substances values.