山西农业大学学报（自然科学版）2013，Vol.33Issue(2)：122-125,4.
近红外透射光谱法快速测定瓶装醋中挥发酸含量的研究
Rapid Determination of Volatile Acid Content in Bottled Vinegar with Near Infrared Reflectance Spectroscopy
摘要
Abstract
To evaluate the applicability of non-invasive Near Infrared Reflectance (NIR) spectroscopy for detecting the bottled vinegar,the transmission spectra of 240 bottled vinegar samples were tested by using ASD-Handheld Field Spec3 spectrometer.The results showed that,absorbance peak was obviously influenced by the glass bottle when the intensity of light source was less strong which could be improved by using external light source with Lowell pro-lam 14.5V Bulb/128690 tungsten halogen bulb.Partial Least Square (PLS) analysis was used to build the prediction model of volatile acid content.The results indicated that the correlation coefficient and root mean standard error of calibration samples are 0.98 and 0.776,respectively,while,the correlation coefficient and root mean standard error of prediction samples are 0.97 and 0.878,respectively.The sensitive bands of volatile acid were centered between 900 and 1100 nm.关键词
近红外光谱/瓶装醋/挥发酸/偏最小二乘Key words
NIR Spectroscopy/ Bottled vinegar/ Volatile acid/ Partial Least Square分类
信息技术与安全科学引用本文复制引用
宋海燕,刘海芹,程旭,韩小平,秦刚..近红外透射光谱法快速测定瓶装醋中挥发酸含量的研究[J].山西农业大学学报（自然科学版）,2013,33(2):122-125,4.基金项目
国家自然基金(41201294) （41201294）
科技部专项计划(2011IM010200-1) （2011IM010200-1）
山西省青年基金(2011021033-1) （2011021033-1）
山西农业大学学术骨干(XG201222) （XG201222）
