Ropelewska Ewa, Szwejda-Grzybowska Justyna
Fruit and Vegetable Storage and Processing Department, The National Institute of Horticultural Research, Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland.
Foods. 2023 May 24;12(11):2123. doi: 10.3390/foods12112123.
The cultivar and fertilization can affect the physicochemical properties of pepper fruit. This study aimed at estimating the content of α-carotene, β-carotene, total carotenoids, and the total sugars of unfertilized pepper and samples treated with natural fertilizers based on texture parameters determined using image analysis. Pearson's correlation coefficients, scatter plots, regression equations, and coefficients of determination were determined. For red pepper Sprinter F, the correlation coefficient () reached 0.9999 for a texture from color channel B and -0.9999 for a texture from channel for the content of α-carotene, -0.9998 (channel ) for β-carotene, 0.9999 (channel ) and -0.9999 (channel ) for total carotenoids, as well as 0.9998 (channel ) and -0.9998 (channel ) for total sugars. The image textures of yellow pepper Devito F were correlated with the content of total carotenoids and total sugars with the correlation coefficient reaching -0.9993 (channel ) and 0.9999 (channel ), respectively. The coefficient of determination (R) of up to 0.9999 for α-carotene content and the texture from color channel for pepper Sprinter F and 0.9998 for total sugars and the texture from color channel for pepper Devito F were found. Furthermore, very high coefficients of correlation and determination, as well as successful regression equations regardless of the cultivar were determined.
品种和施肥会影响辣椒果实的理化性质。本研究旨在基于使用图像分析确定的质地参数，估算未施肥辣椒以及用天然肥料处理的样品中α-胡萝卜素、β-胡萝卜素、总类胡萝卜素和总糖的含量。确定了皮尔逊相关系数、散点图、回归方程和决定系数。对于红辣椒品种Sprinter F，α-胡萝卜素含量与颜色通道B的质地相关系数达到0.9999，与通道 的质地相关系数为-0.9999；β-胡萝卜素与通道 的质地相关系数为-0.9998；总类胡萝卜素与通道 的质地相关系数为0.9999，与通道 的质地相关系数为-0.9999；总糖与通道 的质地相关系数为0.9998，与通道 的质地相关系数为-0.9998。黄辣椒品种Devito F的图像质地与总类胡萝卜素和总糖含量相关，相关系数分别达到-0.9993（通道 ）和0.9999（通道 ）。发现辣椒Sprinter F的α-胡萝卜素含量与颜色通道 的质地决定系数（R）高达0.9999，辣椒Devito F的总糖含量与颜色通道 的质地决定系数为0.9998。此外，无论品种如何，都确定了非常高的相关系数和决定系数，以及成功的回归方程。
