二维码技术在家庭智慧健康用油模式中的应用

目前全国大约有80%的家庭食用油的摄入量是超标的,食用油超标可能会导致肥胖、高血压、高血脂、糖尿病、心脏病等慢性疾病的增长。由于个体工作、生活方式等诸多因素的差异,消费者很难真正意义上清楚并把控个人的食用油健康摄取量,而以家庭为模式统计并指导居民健康、合理消费食用油,为我们提供了新的思路和途径。通过建立家庭用油统计新模式,当消费者在购买产品时,通过手机扫描食用油产品瓶盖上企业喷印的二维码,链接企业信息平台,信息平台则实时根据消费者家庭档案、每次购买食用油数量、家庭用油统计模型设定的食用油数值,智慧化生成家庭食用油消费统计图,供消费者实时查看,并监控消费者家庭食用油摄取量,以此倡导消费者合理膳食、健康用油,实现以家庭食用油消费的智慧用油新模式。     

Simultaneous determination of phenolic compounds and tocopherols in virgin olive oil using HPLC and UV detection

A simple procedure is described for the simultaneous extraction and HPLC determination of phenols and tocopherols in virgin olive oil. The extraction was carried out using methanol and an isopropanol- methanol mixture. Separation was achieved on a reversed phase C₁₈ column with acetic acid/water-methanol-acetonitrile-isopropanol mixture under gradient elution. Detection was accomplished with UV detection at λ=280 nm. Using this method, simple and complex phenols as well as α-tocopherol can be determined in one run. Phenolic compounds were totally extracted whereas an average recovery of 80% was achieved for α-tocopherol. Validation of method is reported for olive oil samples with varying concentrations of α-tocopherol and phenolic compounds.