Błoński Bartosz, Wilczyński Sławomir, Hartman-Petrycka Magdalena, Michalecki Łukasz
Department of Basic Biomedical Science, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Kasztanowa Street 3, 41-200 Sosnowiec, Poland.
Kornel Gibiński University Clinical Centre, Medical University of Silesia, Ceglana Street 35, 40-514 Katowice, Poland.
Foods. 2022 Jul 2;11(13):1974. doi: 10.3390/foods11131974.
Food product packaging should block light to protect nutrients, color and active ingredients in functional food from degradation. Currently, packages are not optimized in terms of the solar radiation impact on the products they contain. The aim of this study was to develop a method of quantifying the interaction of food products with solar radiation, which would enable the optimization and selection of packaging that would protect the product from the spectral range specifically absorbed by it. In order to determine the reflectance of chocolate, the total reflectance ratio was measured. For this purpose, a SOC 410 Solar DHR reflectometer from Surface Optics Corporation, San Diego, CA, USA was used. Directional reflectance was measured for seven discrete spectral ranges from 335 to 2500 nm, which correspond to the spectrum of solar radiation. The value of total reflectance for chocolate differed significantly in the studied spectral ranges. The highest reflectance ratio, averaged for all the tested chocolate, was recorded for the spectral range 700-1100 nm and the lowest for the 335-380 nm range. The total reflectance was significantly correlated with the cocoa content and the brightness of the chocolate. The proposed method of hemispheric directional reflectance enables the measurement of the total reflectance of food products. It can be used as a measure of exposure to radiation. Thus, it is possible to design a package that will protect the product from the spectral range that is most harmful for it.
食品包装应能阻挡光线，以保护功能性食品中的营养成分、色泽和活性成分不被降解。目前，包装在太阳辐射对其所装产品的影响方面并未得到优化。本研究的目的是开发一种量化食品与太阳辐射相互作用的方法，该方法能够优化和选择包装，从而保护产品免受其特定吸收光谱范围的影响。为了测定巧克力的反射率，测量了总反射率。为此，使用了美国加利福尼亚州圣地亚哥市表面光学公司的SOC 410太阳能DHR反射仪。在335至2500 nm的七个离散光谱范围内测量了定向反射率，这与太阳辐射光谱相对应。在所研究的光谱范围内，巧克力的总反射率值存在显著差异。所有测试巧克力的平均反射率最高值出现在700 - 1100 nm光谱范围内，最低值出现在335 - 380 nm范围内。总反射率与可可含量和巧克力的亮度显著相关。所提出的半球定向反射率方法能够测量食品的总反射率。它可用作辐射暴露的一种度量。因此，有可能设计出一种包装，保护产品免受对其最有害的光谱范围的影响。
