Diet authentication in lamb meat using spectroscopic methods

摘要：

The sensory and nutritional properties of the meat from pasture‐fed lambs differ from those of grain‐fed lambs.Furthermore,consumers are demanding clear information on the food supplied to animals.It is therefore important to be able to discriminate between products obtained in different production systems, in particular pasture‐feeding v.stall‐feeding.This study evaluated the potential of three spectral method to discriminate pasture‐fed ( P) v.stall‐fed ( S) lamb carcasses : i) quantifying the light absorption in the 450-510nm area of the visible reflectance spectrum ( method 1, M1) as previously proposed by Prache and Theriez (1999), ii) using the overall optical information of the visible reflectance spectrum ( i.e.between400-700nm) (method2, M2), as proposed by Dian et al (2007) and iii) using visible and near infrared spectroscopy (NIRS) between400and 2500 nm (method 3, M3).The first two methods used a portable spectrophotometer, the latter a non‐portable laboratory spectrophotometer.

关键词： diet authentication NIR spectroscopy reflectance carcass pasture‐feeding

作者: P.H.M.Dian D.Andueza J.Ballet R.Jailler M.Jestin J.Pourrat I.N.prado S.Prache

作者单位: INRA,UR1213 Herbivores,Site de Theix,F-63122 Saint-Genès-Champanelle,France INRA,UE1153 Monts Dore,Le Roc,F-63210 Orcival UEM,A v.Colombo 5790,87020-900,Bloco 32-Sala 3,Maringá-PR,BrazilCorresponding author:S.Prache

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）