Bratu Ana Maria, Petrus Mioara, Popa Cristina
Laser Department, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., PO Box MG-36, 077125 Magurele, Romania.
Materials (Basel). 2020 Jun 12;13(12):2694. doi: 10.3390/ma13122694.
Gases produced inside harvested fruit sensitively influence the continuing quality of the stored fruit and its maximum time of storability. In this work, the evolution of gaseous volatiles inside "Golden Delicious" apples were studied using CO laser photoacoustic spectroscopy with the aim of developing new methods for in-storage fruit quality monitoring. Studying the concentrations of volatile organic compounds generated inside "Golden Delicious" apples during storage, it was found that the concentrations of these compounds depended on the stage of maturity reached during fruit maturation and on the conditions of preservation. Numerical simulations using COMSOL Multiphysics software were used to study the conversion of ethylene to ethanol in the course of respiration processes occurring inside stored food. Experimental data obtained by means of photoacoustic spectroscopy were used to critically assess the simulation results. Using the combination of both techniques, new prospects for the development and implementation of advanced schemes of fruit storage and preservation have emerged.
采后果实内部产生的气体对贮藏果实的持续品质及其最长贮藏时间有显著影响。在这项工作中，利用CO激光光声光谱法研究了“金冠”苹果内部气态挥发物的释放情况，旨在开发用于贮藏果实品质监测的新方法。通过研究“金冠”苹果贮藏期间产生的挥发性有机化合物的浓度，发现这些化合物的浓度取决于果实成熟过程中达到的成熟阶段以及保存条件。利用COMSOL Multiphysics软件进行数值模拟，以研究贮藏食品内部呼吸过程中乙烯向乙醇的转化。通过光声光谱法获得的实验数据被用于严格评估模拟结果。将这两种技术结合使用，为开发和实施先进的果实贮藏和保鲜方案带来了新的前景。
