摘要
目的:引进色彩色差计和电子鼻,将经验指标数据化,实现槟榔炒制"火候"判别的客观数量化,为研究中药炮制共性技术问题提供一种新的方法及思路。方法:以槟榔为研究对象,在全国范围内采集槟榔及炮制品,应用色彩色差计和电子鼻采集其颜色特征参数和气味特征参数,通过统计分析总结炮制经验,建立"火候"判别的数学预测模型和90%参考值范围。结果:建立了基于L*a*b*色度空间的槟榔炒制火候判断的数学判别模型,其判别符合率为100%,双侧90%参考值范围分别为生品:L*(50.07~55.03),a*(4.136~6.906),b*(6.65~8.82) 炒品:L*(43.874~47.998),a*(3.816~6.732),b*(3.786~6.558) 焦品:L*(38.744~40.616),a*(1.11~3.01),b*(-1.434~0.538) 电子鼻采集不同炮制品的气味数据,通过线性判别分析(LAD)和主成分分析(PCA),证明不同炮制程度的槟榔气味存在显著区别,建立了数学判别模型。结论:通过实验证明色彩色差计和电子鼻均可区分不同炮制程度的槟榔样品,采用色彩色差计和电子鼻判别中药炮制的"火候",具有一定的可行性,对深入研究中药传统理论提供了参考。
Objective: The color difference meter and electronic nose fingerprint analyzer were introduced to discriminate pro- cessed betel nut's different huohou and quantize empirical index during the processing of Chinese medicine. Method: By collecting the color's and the smell's characteristic parameters of betel nut and its processed products to set up huohou's math discrimination modules and 90% reference value scale. Result: We set up a huohou's math discrimination module and 90% reference value range base on L* a *b * ,which discrimination coincidence was 100% and 90% reference value range respectively was Shengpin: L* (50. 07-55.03 ), a* (41 136-6. 906), b* (6.65-8.82) ; Chaopin: L* (43. 874-47. 998 ), a* ( 3. 816-6. 732 ), b* ( 3.786-6. 558 ) ; Jiaopin: L* (38. 744-40. 616), a * ( 1.11-3.01 ), b * ( - 1. 434-0. 538). At the same time, we set up a huohou~ math discrimination module base on smell's characteristic parameters too. Conclusion: The betel nut and its processed products'color and smell measurement based on the color difference meter and electronic nose fingerprint analyzer may be feasible, and provides a reference to better study on traditional Chinese medicine theory.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2009年第14期1786-1791,共6页
China Journal of Chinese Materia Medica
基金
国家"十一五"科技支撑计划项目(2006BAI09B06-01-2)
四川省教育厅重大培育项目(07ZZ009)
关键词
炒制
色彩色差计
电子鼻
火候
槟榔
stir-frying
color difference meter
electronic nose
proper degree of processing
betel nut