广西南宁兴宁区不同季节水牛和娟姗牛生乳中Pb、Cd、Cr元素含量的研究
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摘要
2016年秋冬两季和2017年春夏两季分别人工采集15头娟姗牛(Jersey)和30头水牛(Bubalus arnee)的生乳,并使用子吸收光谱仪对生乳中Pb、Cd、Cr重金属元素进行检测统计。结果表明:(1)2016年水牛生乳及娟姗牛生乳中Pb元素的含量均值分别为0.039 mg/kg、0.044 mg/kg,接近国标限值0.050 mg/kg,其他季节批次乳样Pb元素含量较低。(2)所有季节生乳样品中Cd元素含量保持较低水平。(3)2017年水牛生乳及娟姗牛生乳中Cr元素含量分别0.262 mg/kg和0.228 mg/kg,接近国标限值0.300 mg/kg,其他季节批次Cr元素含量都很低。(4)不同季节的同一品种奶畜生乳,以及相同季节不同品种奶畜的生乳在Pb、Cd、Cr元素含量上具有显著性差异。
In this research,we selected 30 buffalo cows(Bubalus arnee),15 Jersey cows with healthy body stage to study Pb,Cd,Cr composition of their milk in four seasons. The results showed:(1)The Pb composition of the buffalo cows and Jersey cows milk were 0.039 mg/kg,0.044 mg/kg in winter respectively,near 0.050 mg/kg of the national standard.(2)The Cd composition of the buffalo cows and Jersey cows milk were much lower than that of the national standard.(3)The Cr composition of the buffalo cows and Jersey cows milk were 0.262 mg/kg,0.228 mg/kg in spring respectively,it was near 0.300 mg/kg of the national standard.(4) Pb,Cd,Cr composition of milk were significantly different because of different breeds and different seasons.
In this research,we selected 30 buffalo cows(Bubalus arnee),15 Jersey cows with healthy body stage to study Pb,Cd,Cr composition of their milk in four seasons. The results showed:(1)The Pb composition of the buffalo cows and Jersey cows milk were 0.039 mg/kg,0.044 mg/kg in winter respectively,near 0.050 mg/kg of the national standard.(2)The Cd composition of the buffalo cows and Jersey cows milk were much lower than that of the national standard.(3)The Cr composition of the buffalo cows and Jersey cows milk were 0.262 mg/kg,0.228 mg/kg in spring respectively,it was near 0.300 mg/kg of the national standard.(4) Pb,Cd,Cr composition of milk were significantly different because of different breeds and different seasons.
引文
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[2]汪晨星.试析“生乳新国标”对中国乳业的影响及政策建议---以制度经济学为视角[J].经济研究导刊,2013(16):72-74
[3]周雪巍.不同奶畜生乳、水和饲料中多元素测定方法研究及含量分析[D].兰州:甘肃农业大学,2015
[4]孙万成,罗毅皓,马海青,等.不同牧场牦牛乳重金属元素暴露水平分析[J].食品科技,2011,36(8):305-308
[5]董峰光,王朝霞,宫春波,等.烟台市售乳及乳制品重金属污染状况及暴露风险评估研究[J].青岛农业大学学报(自然科学版),2016,33(4):294-301
[6]Ijaz Javed,Ibadullah Jan,Faqir Muhammad,et al.Heavy Metal Residues in the Milk of Cattle and Goats During Winter Season[J].Bulletin of Environmental Contamination and Toxicology,2009(5):616-620
[7]G O Tona,V O Adetunji,S A Ameen,et al.Evaluation of Lead and Cadmium Heavy Metal Residues in Milk and milk Products Sold in Ogbomoso Southwestern Nigera[J].Pakistan Journal of Nutrition,2013,12(2):168-171
[8]国家卫生和计划生育委员会,国家食品药品监督管理总局.食品安全国家标准食品中铅的测定:GB5009.12-2017[S].北京:中国标准出版社,2017
[9]国家卫生和计划生育委员会.食品安全国家标准食品中镉的测定:GB5009.15-2014[S].北京:中国标准出版社,2015
[10]国家卫生和计划生育委员会.食品安全国家标准食品中铬的测定:GB5009.123-2014[S].北京:中国标准出版社,2015
[11]林永茂.仪器检出限的测定[J].资源节约与环保,2014(3):95
[12]李君霞.分析检出限的实验测量和计算方法的研究[D].北京:北京化工大学,2012
[13]贡有成.对重金属及其污染和危害的浅识[A].中国环境科学学会.2013中国环境科学学会学术年会论文集(第七卷)[C].昆明:中国环境科学学会,2013:6
[14]中华人民共和国国家卫生和计划生育委员会,国家食品药品监督管理总局.食品安全国家标准食品中污染物限量:GB2762-2017:[S].北京:中国标准出版社,2017
[15]林胜华,李自成.从管理源头控制生鲜乳质量[J].四川畜牧兽医,2013,40(3):17-18
[16]王君.为食品安全拉起一道警戒线食品中的污染物及限量标准解[J].中国卫生标准管理,2012,5(3):61-63