酒泉小麦胚片的营养成分及安全性指标测定

Determination of Nutrient Compositions and Safety Indexes of Wheat Germ Flakes in Jiuquan

为了解酒泉小麦胚片质量现状和确定酒泉小麦胚片中的优势指标,给当地小麦胚的精深加工和麦胚相关产品的价值提升提供参考。采集了23份酒泉小麦胚片和5份其他产地的小麦胚片,对其脂肪、重金属元素、农药残留等13项指标进行测定分析,从营养成分和安全性两个方面进行量化评价。结果表明,酒泉小麦胚片中各营养成分含量相对稳定,总灰分、钠、钙含量与其他产地持平,脂肪、蛋白质和镁等指标优于其他产地,其中镁的优势最突出。安全性指标中,酒泉小麦胚中的铅、总砷和总汞含量与其他产地持平;镉含量明显低于其他产地,是较有优势的安全指标,脂肪酸值含量低于标准最高限量,但变异性较大。

To understand the quality status of Jiuquan wheat germ flakes and to determine the advantageous indicators in Jiuquan wheat germ flakes so as to provide reference for the deep processing of local wheat germ and the value enhancement of wheat germ related products,23 wheat germ flake samples from Jiuquan and 5 wheat germ flake samples from other areas were collected,13 parameters such as contents of ether extract,heavy metals,pesticide residues etc.were determined,and quantitative evaluation was performed through nutrient compositions and safety indicators.The results showed that the nutrient conpositions were stable in wheat germ flaks from Jiuquan,contents such as total ash,sodium,and calcium were the same as those in samples from other areas,whereas parameters such as contents of ether extract,protein,and magnesium were superior to those in samples from other areas with magnesium content showed the most prominent advantage.In terms of safety indicators,contents of lead,total arsenic,and total mercury in samples from Jiuquan were the same as those in samples from other areas.The cadmium content in Jiuquan samples was significantly lower than that in samples from other areas,which made it a more advantageous safety indicator.The contents of fatty acids were lower than the standard maximum limit with greater variability.