摘要
为了给猕猴桃成熟度判定提供一种无损检测手段,进行了基于近红外漫反射光谱定量分析技术检测冷藏期间猕猴桃硬度的试验研究。采用偏最小二乘法对"华优"猕猴桃的近红外光谱进行了分析,并且比较和讨论了4种光谱预处理方法的建模结果。试验结果表明,在全谱范围内,一阶微分光谱所建模型效果最佳,其校正相关系数为0.963,预测相关系数为0.852。
In order to explore a non-destructive method in identifying kiwifruit ripeness,a near infrared diffused spectroscopy technology was used to determine firmness of Huayou kiwifruits during cool storage.Partial least squares（PLS） regression was carried out to analyze the spectroscopy.Four different spectral pretreatment methods were used to compare calibration results for firmness.The result showed that the best calibration models,in the whole wavelength range,could be obtained by the first derivative spectrum with the correlation coefficient of calibration of 0.963 and the correlation coefficient of prediction of 0.852.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2011年第3期145-149,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
陕西省自然科学基金资助项目(SJ08-ZT06)
西北农林科技大学青年学术骨干项目(Z111020711)
