内蒙古牛肉和绵羊肉硒含量测定及评价  

Measurement and Evaluation of Selenium in Beef and Sheep Meat in Inner Mongolia

作　　者：雒帅 郭军[1] 吕娇 杜权 孙海洲[2] LUO Shuai;GUO Jun;LÜ Jiao;DU Quan;SUN Haizhou(College of Food Science and Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China;Institute of Animal Nutrition and Feed,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China)

机构地区：[1]内蒙古农业大学食品科学与工程学院,内蒙古呼和浩特010018 [2]内蒙古农牧业科学院动物营养与饲料研究所,内蒙古呼和浩特010031

出　　处：《肉类研究》2020年第6期52-56,57,共6页Meat Research

基　　金：内蒙古自治区应用技术研究与开发资金计划项目(201702089,201802068)。

摘　　要：为研究内蒙古牛肉和绵羊肉硒水平,从内蒙古东部到西部12个旗县采集放牧、半舍饲和舍饲牛肉124份以及放牧绵羊肉49份,利用原子荧光光谱法测定硒含量并进行描述性统计和比较。结果表明:内蒙古牛肉和绵羊肉硒含量地域特征显著,自东向西呈显著上升趋势,中东部差异不明显。乌审旗牛肉硒含量为(12.04±0.84)μg/100 g,约为新巴尔虎左旗((3.01±1.34)μg/100 g)的4倍,杭锦后旗绵羊肉硒含量为(4.23±0.82)μg/100 g,约为鄂温克旗((1.41±0.57)μg/100 g)的3倍;放牧绵羊肉硒含量数据较集中,地域特征更明显;牛肉硒含量数据较离散,提示饲养方式对硒水平有显著影响;牛肉硒含量((6.23±2.63)μg/100 g)约为绵羊肉((2.24±1.14)μg/100 g)的2.8倍;整体舍饲((8.71±2.90)μg/100 g)、半舍饲((6.41±2.17)μg/100 g)牛肉硒含量高于放牧牛肉((5.10±1.80)μg/100 g),同地区比较结果一致,舍饲牛肉硒含量通常高于半舍饲和放牧牛肉。牛肉和绵羊肉硒含量地域性差异与地壳硒丰度和饲养因素均有关。A total of 124 beef samples from grazing,semi-barn-fed and barn-fed cattle and 49 mutton samples from grazing sheep in 12 banners and counties distributing from east to west in Inner Mongolia were collected for determining selenium(Se)levels by atomic fluorescence spectroscopy(AFS).Descriptive statistical analysis and comparative analysis were carried out on the data obtained.Results showed that Se levels of beef and mutton in Inner Mongolia exhibited significant regional characteristics,increasing from east to west.However,Se levels of beef and sheep meat did not significantly differ between the middle to middle-eastern regions.Se content of beef in Uxin Banner was about 3 times higher than that in Xin Barag Left Banner,(12.04±0.84)versus(3.01±1.34)μg/100 g.Se content of mutton in Hanggin Rear Banner was approximately 2 times higher than that in Ewenki Banner,(4.23±0.82)versus(1.41±0.57)μg/100 g.The distribution of Se contents in grazing sheep meat was concentrated with significant regional characteristics,while the distribution of Se contents in beef was scattered,implying that feeding systems have a significant impact on selenium level.Se content of beef was 1.8 times higher than that of sheep,(6.23±2.63)versus(2.24±1.14)μg/100 g.Overall,Se levels of beef from barn-fed cattle,(8.71±2.90)μg/100 g,and from semi-barn fed cattle,(6.41±2.17)μg/100 g,were higher than that of beef from grazing cattle,(5.10±1.80)μg/100 g for each region.The regional variability of Se contents in beef and mutton may be related to both the crustal abundance of selenium and feeding factors.

关 键 词：硒 牛肉 绵羊肉 放牧 舍饲 

分 类 号：TS251.2[轻工技术与工程—农产品加工及贮藏工程]