A clean, fast and simple method to determine the energy value of dried foods and breakfast cereal

Química Nova

Terra, Juliana¹  Prado, Marcelo Alexandre¹  Antunes, Alexandre Martinez¹  Universidade Estadual de Campinas, Campinas, Brasil¹  Bueno, Maria Izabel Maretti Silveira¹ 

关键词: energy value;    green chemistry;    X-ray fluorescence.;   

DOI  :  10.1590/S0100-40422010000500017

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The Energy Value (EV) corresponds to the sum of the energetic contributions from food macronutrients (proteins, carbohydrates and fats) and is required on the labels of pre-packaged foods. The determinations of these parameters are based on distinct analytical procedures, each one being time-consuming, laborious and producing residues. This work presents multivariate models to determine the EV contents of industrialized foods for human consumption by using X-ray fluorescence spectra of samples with known parameters, determined through conventional methods. The proposed method is an alternative to conventional analytical methods and does not require any reagent, given the demands of the "green chemistry".

【 授权许可】

Unknown