傅里叶变换中红外光谱法测定散装单峰驼乳主要化学成分的年变化规律及影响因素。
Circannual changes in major chemical composition of bulk dromedary camel milk as determined by FT-MIR spectroscopy, and factors of variation.
机构信息
Emirates Industry for Camel Milk and Products, Farm and Veterinary Department, PO Box 294236, Dubai, United Arab Emirates.
Department of Biomathematics and Informatics, University of Veterinary Medicine, 2 István Street, 1078 Budapest, Hungary.
出版信息
Food Chem. 2019 Apr 25;278:248-253. doi: 10.1016/j.foodchem.2018.11.059. Epub 2018 Nov 10.
We monitored the major chemical composition of bulk dromedary camel milk by FT-MIR spectroscopy over a 5-year period. The results highly correlated with those determined with reference methods (r > 0.985, p < 0.001). Production parameters showed significant (p < 0.001) seasonal and yearly changes. The overall mean fat, protein, lactose, solids-not-fat, and total solids concentrations of bulk dromedary camel milk were 2.87%, 2.94%, 4.15%, 8.00%, and 10.69%, respectively. Month of the year, year of the study, and level of production had a strong influence on bulk milk chemical composition and yield of milk components; however, the relative effect of season on composition was greater (proportion of variance app. 50%) compared to that of other factors of variation. The highest and lowest values were measured during winter and summer, respectively. Circannual variation in major milk components was associated with environmental conditions (photoperiod, temperature), whereas it was independent of nutritional factors.
我们通过傅里叶变换中红外光谱法（FT-MIR spectroscopy）在 5 年时间内监测了散装单峰驼驼乳的主要化学成分。结果与参考方法（r > 0.985，p < 0.001）高度相关。生产参数显示出显著的（p < 0.001）季节性和年度变化。散装单峰驼驼乳的总体平均脂肪、蛋白质、乳糖、非脂固体和总固体浓度分别为 2.87%、2.94%、4.15%、8.00%和 10.69%。年、月、年生产水平对散装奶化学成分和奶成分产量有很大影响；然而，季节对组成的相对影响（约 50%的方差比例）大于其他变化因素。最高和最低值分别在冬季和夏季测量。主要乳成分的年循环变化与环境条件（光周期、温度）有关，而与营养因素无关。
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