高级检索+

香蕉成熟期品质可视化与高光谱成像研究

Study on Banana Quality Visualization and Hyperspectral Imaging at Ripening Stage

  • 摘要: 为解决香蕉采后转色快和易腐烂而导致的果品等级下降问题,利用高光谱成像技术建立快速无损检验香蕉果实成熟度的预测方法。测定了香蕉在20、25、30℃三种不同贮藏温度下的可溶性固形物含量、含水率和硬度的动态变化,并与同期对应的光谱数据进行对比分析。同时,利用蒙特卡洛偏最小二乘法(MCPLS)选取其特征波长,并建立多元线性回归(MLR)预测模型。结果表明:香蕉果实的可溶性固形物含量、含水率和硬度的预测模型的决定系数分别为0.858 4、0.873 5和0.912 8,实现了不同成熟阶段香蕉果实的可溶性固形物含量、含水率和硬度的无损评价。将高光谱成像技术应用于香蕉果实成熟期品质参数的快速无损检验具有良好可行性。

     

    Abstract: The hyperspectral imaging technology was used to establish a rapid and non-destructive prediction method of banana fruit maturity in this study, aiming to solve the problem of fruit grade decline caused by rapid color change and putrescibility of postharvest banana. The dynamic changes of soluble solids content(SSC), moisture content and hardness of banana fruits at different storage temperatures(20 ℃, 25 ℃ and 30 ℃) were measured,and contrastively analyzed with the corresponding spectral data in the same period. The characteristic wavelengths were selected by Monte Carlo partial least squares(MCPLS), and the multiple linear regression(MLR) prediction model was established. The results showed that the determination coefficients of the prediction model of SSC, moisture content and hardness of banana fruits were 0.858 4, 0.873 5 and 0.912 8, respectively, which realized the nondestructive evaluation of SSC, moisture content and hardness at different ripening stages. It is feasible to apply hyperspectral imaging technology to rapid non-destructive testing of banana fruits quality parameters at maturation stage.

     

/

返回文章
返回