在挤压型猫粮中，与室温相比，在-20°C 下储存时，硫胺素的降解速度相似。
In extruded feline diets, thiamine degraded at a similar rate when stored at -20°C, compared to room temperature.
机构信息
Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1 (DiSabatino, Kritikos, Monteith, Verbrugghe); Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, Georgia 30605, USA (Parr).
出版信息
Can Vet J. 2021 Apr;62(4):374-378.
Thiamine is an essential dietary nutrient in cats; however, studies on the stability of thiamine in pet food are limited. The objective of this study was to analyze thiamine concentrations in commercial feline extruded diets over time at room and freezing temperatures. Twelve diets were split in half and thiamine concentrations were assessed using fluorometry. One half of each diet was then stored at room temperature (24°C) and the other half was frozen (-20°C). Subsamples were analyzed at 2 other time points at 6-month intervals up to 1 year. Data were assessed using a mixed procedure (2-factor factorial model with factors time and treatment). Based on F-tests, thiamine concentrations decreased over time ( = 0.001), with no treatment*time interaction ( = 0.9534). In conclusion, regardless of treatment, thiamine degraded at a similar rate over time.
硫胺素是猫必需的膳食营养素；然而，关于宠物食品中硫胺素稳定性的研究有限。本研究的目的是分析在室温及冷冻温度下，商业膨化猫粮中硫胺素浓度随时间的变化。将 12 种猫粮分为两份，使用荧光法评估硫胺素浓度。然后，将每份猫粮的一半储存在室温（24°C）下，另一半冷冻（-20°C）。在 1 年内的另外 2 个时间点，每隔 6 个月分析亚样本。使用混合程序（时间和处理因素的 2 因子析因模型）评估数据。基于 F 检验，硫胺素浓度随时间下降（ = 0.001），处理与时间之间无交互作用（ = 0.9534）。总之，无论处理方式如何，硫胺素随时间的降解速度相似。
Zotero 插件