陈香维,杨公明.测试部位对猕猴桃近红外光谱响应特性的影响[J].农业机械学报,2009,40(1):124-128.
.[J].Transactions of the Chinese Society for Agricultural Machinery,2009,40(1):124-128.
摘要点击次数: 3073
全文下载次数: 23
测试部位对猕猴桃近红外光谱响应特性的影响   [下载全文]
   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  猕猴桃  糖度  近红外光谱  无损检测  测试部位
基金项目:
陈香维  杨公明
西北农林科技大学
中文摘要:应用近红外光谱漫反射技术,采集猕猴桃赤道附近不同测试部位的近红外光谱,对不同测试部位的平均吸光度和噪声进行差异性分析,对不同测试部位的近红外光谱波峰位置、不同波长处的吸光度以及近红外光谱糖度定量分析模型的预测精度进行了单因素方差分析。同一猕猴桃在赤道附近的不同测试部位,其近红外光谱平均吸光度及噪声的波动性较小,波峰位置差异不显著;同一猕猴桃在相同的波峰位置处,不同测试部位的吸光度差异不显著。越是靠近长波近红外区,吸光度的相对标准偏差越大,但是从总体上看,不同波长位置、不同测试部位吸光度的离散度都不大;用不同测试部位的光谱所建立的糖度定量分析模型检测精度差异不显著。猕猴桃赤道附近不同测试部位的近红外光谱都可以用来分析整个猕猴桃的品质。
Key Words:
Abstract:To find reasonable position on the kiwifruit to collect near-infrared spectrum information for quality evaluation, near-infrared spectrum was collected at different locations near the equator on the kiwifruit applying the near-infrared spectrum diffuse reflection technology. Difference analysis on the average absorbance and the noise of the spectrum on the tested locations was carried out. The single factor variance analysis was conducted to the near infrared spectrum wave ridge position and the absorbance at different locations, as well as the prediction precision of the Brix quantitative analysis model. The results showed that the variety for the average absorbance and noise for the spectrum at different locations around the equator on the same kiwifruit was low, and the wave ridge position difference was not remarkable. The difference of absorbance was not remarkable at different locations in the same wave ridge position for the same kiwifruit. The relatively standard deviation of the absorbance was greater when the wavelength was longer in the near infrared area. However, the degree of scatter of data was not high at all wavelength at different locations in the same wave ridge position. The deference for the Brix prediction models built by spectrum data at different locations was not remarkable. It is concluded that the near-infrared spectrum information collected at different locations around the equator of the kiwifruit can be used for quality evaluation for the entire fruit without high difference.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器