Zhang Renyu, Realini Carolina E, Middlewood Paul, Pavan Enrique, Ross Alastair B
Food Technology & Processing, AgResearch Ltd, Palmerston North, New Zealand.
Consumer Food Systems, AgResearch Ltd, Palmerston North, New Zealand.
Food Chem. 2022 Aug 30;386:132758. doi: 10.1016/j.foodchem.2022.132758. Epub 2022 Mar 21.
Assurance of food quality and allied farming systems is increasingly sought by consumers and food processors. Yet, there are no validated analytical approaches for food-based verification of farming systems. Rapid evaporative ionisation mass spectrometry (REIMS) is an emerging analytical tool that can provide sufficient details to meet this need. M. Longissimus lumborum of 10 groups of lambs (n = 140) from 3 farms, varying by breed, sex, and forage type, were measured using REIMS fingerprinting. Modelling of features detected by REIMS could discriminate for most comparisons of sex (including castration status), breed, and diet. Tentative identification suggested that lipids, hormone-related compounds, amino acids and dipeptides were the main discriminatory features. Several REIMS features were correlated with pH and shear force in Merino lambs. REIMS was able to detect features related to breed, sex and feed in lamb meat, suggesting that these characteristics can be independently measured using rapid metabolic fingerprinting.
消费者和食品加工商越来越多地寻求食品质量保证及相关养殖系统。然而，目前尚无经过验证的基于食品的养殖系统验证分析方法。快速蒸发电离质谱（REIMS）是一种新兴的分析工具，能够提供足够的细节来满足这一需求。使用REIMS指纹图谱对来自3个农场的10组羔羊（n = 140）的腰大肌进行了测量，这些羔羊在品种、性别和饲料类型上存在差异。对REIMS检测到的特征进行建模，在大多数性别（包括去势状态）、品种和饮食比较中都能进行区分。初步鉴定表明，脂质、激素相关化合物、氨基酸和二肽是主要的鉴别特征。在美利奴羔羊中，几个REIMS特征与pH值和剪切力相关。REIMS能够检测到与羔羊肉品种、性别和饲料相关的特征，这表明这些特征可以通过快速代谢指纹图谱独立测量。
