title: Prediction of pork quality with near infrared spectroscopy (NIRS) 2. Feasibility and robustness of NIRS measurements under production plant conditions.
abstract: Longissimus dorsi samples (685) collected at four processing plants were used to develop prediction equations for meat quality with near infrared spectroscopy. Equations with R(2)>0.70 and residual prediction deviation (RPD)≥2.0 were considered as applicable for screening. One production plant showed R(2) 0.76 and RPD 2.05, other plants showed R(2)<0.70 and RPD<2.0 for drip loss %. RPD values were ≤2.05 for drip loss%, for colour L*≤1.82 and pH ultimate (pHu)≤1.57. Samples were grouped for drip loss%; superior (<2.0%), moderate (2-4%), inferior (>4.0%). 64% from the superior group and 56% from the inferior group were predicted correctly. One equation could be used for screening drip loss %. Best prediction equation for L* did not meet the requirements (R(2) 0.70 and RPD 1.82). pHu equation could not be used. Results suggest that prediction equations can be used for screening drip loss %.
authors.affiliation: CCL Nutricontrol, Veghel, The Netherlands. christiaan.kapper@wur.nl
authors.forename: C
authors.initials: C
authors.lastname: Kapper
authors.forename: R E
authors.initials: RE
authors.lastname: Klont
authors.forename: J M A J
authors.initials: JM
authors.lastname: Verdonk
authors.forename: P C
authors.initials: PC
authors.lastname: Williams
authors.forename: H A P
authors.initials: HA
authors.lastname: Urlings
mesh_terms: D000818:Animals; D003116:Color; D005511:Food Handling; D019649:Food Industry; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008460:Meat / Q000032:analysis* / Q000592:standards; D018482:Muscle, Skeletal / Q000378:metabolism; D015203:Reproducibility of Results; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D013552:Swine; D014867:Water / Q000378:metabolism*
chemical_list: D014867:Water