农业机械学报2012，Vol.43Issue(11)：163-168,6.DOI:10.6041/j.issn.1000-1298.2012.11.031
双孢蘑菇硬度的近红外漫反射光谱无损检测
Non-destructive Detection of Agaricus bisporus Firmness Based on Near-infrared Diffused Spectroscopy
摘要
Abstract
Calibration model for firmness of Agaricus bisporus during storage was developed based on near-infrared ( NIR) diffuse reflectance spectroscopy quantitative analysis techniques. Partial least squares ( PLS ) regression was carried out to analyze the spectroscopy. Four different spectral pretreatment methods ( first derivative, second derivative, SNV , SMC) were used to compare calibration results for firmness. The result showed that the best calibration models, in the selected wavelength range of 5 000 ~ 10 000 cm-1 , could be obtained by the second derivative spectrum with the determination coefficient of calibration of 0. 947 1 , and the determination coefficient of prediction of 0. 826 1. The results indicated that the detection method based on near-infrared diffuse reflectance spectroscopy was simple, and could be used for non-destructively evaluating the changes of firmness in Agaricus bisporus during storage in time.关键词
双孢蘑菇/硬度/近红外光谱/无损检测Key words
Agaricus bisporus / Firmness/ Near-infrared spectroscopy/ Non-destructive examination分类
化学化工引用本文复制引用
王娟,张荣芳,王相友..双孢蘑菇硬度的近红外漫反射光谱无损检测[J].农业机械学报,2012,43(11):163-168,6.基金项目
国家自然科学基金资助项目(30871757)和国家农业科技成果转化资金资助项目(2010GB2C600253) （30871757）
