近红外拓扑方法在南疆红枣品质分析中的应用  

Application of Near-Infrared Topology Method in the Quality Analysis of Jujube of Southern Xinjiang

作　　者：罗华平[1,2] 卢启鹏[2] 

机构地区：[1]塔里木大学机械电气化工程学院,新疆阿拉尔843300 [2]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春130033

出　　处：《光谱学与光谱分析》2012年第3期655-659,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(10964009;11164023);西部之光项目(Y10739Q110);吉林省科技发展计划项目(20100338)资助

摘　　要：从南疆红枣的物理和光谱特征两方面,通过反复调整和逐步细分相结合的方法,给出红枣品质细分和特征因子分析框图。实际应用中可依据不同需要设置最佳光谱参数来提高光谱重复性和质量。实验分离出南疆红枣常见的裂口褐变、色泽和成分等光谱特征因子,如褐变特征因子明显尖峰特征谱线位置10 170cm-1。通过光谱图的特征分析,初步建立了红枣近红外光谱和部分品质之间的对应关系,为下一步红枣品质编码奠定了基础。该方法可节省大量重复建模费用,在建立红枣近红外品质分析标准和模型库共享方面有较好的应用前景。In the present paper,both the physical characteristics and spectral signatures of southern Xinjiang jujube were studied.With the methods of repetitive adjustment and stepwise refinement,the analysis diagram of jujube quality subdivision and characteristic factors were obtained.In actual practice,the spectra repeatability and quality can be improved by setting an optimum acquisition parameter according to different experimental requirements.Through experiments the characteristic factors of crack browning,luster and compositions were obtained,which demonstrates a distinguishing downing characteristic spectral line at the wave number of 10 170 cm-1.Through characteristic analysis of jujube NIR spectra,the correspondence between the jujube spectra and their qualities was established,which lays the foundation for jujube qualities＇ characteristic coding in the future.The application of near-infrared topology method in the quality analysis of southern Xinjiang jujube is cost saving,which has a broad application prospect in establishing the NIR analytical standard and model database sharing of the jujube＇s quality in the future.

关 键 词：近红外光谱 拓扑方法 南疆红枣 特征因子 

分 类 号：O657.3[理学—分析化学]