期刊文献+

利用二次谐波在体分析番茄中的番茄红素和β-胡萝卜素含量 被引量:5

Lycopene and β-Carotene Content in Tomato Analyzed by the Second Harmonic
下载PDF
导出
摘要 番茄中含有番茄红素和β-胡萝卜素两种重要的营养成分。两种成分的主要拉曼光谱基团相同,利用基频很难在体将两种成分区分开。应用激发波长为514.5nm的激发光恰好处在番茄红素和β-胡萝卜素主要吸收带的半高宽范围内,因此能够发生共振拉曼效应。利用共振拉曼光谱技术,通过在体测量番茄中的番茄红素和β-胡萝卜素CC碳碳共轭双键伸缩振动的二次谐波,用软件获得每种成分光谱的积分强度而得到番茄红素和β-胡萝卜素的含量,为在体检测同种基团成分含量提供一种方法。 Lycopene and β-carotene are two important nutritional components in tomato.The main Raman spectrum group of lycopene and β-carotene abundant in tomato is identical and difficult to be distinguished through fundamental frequency.With excitation wavelength of 514.5 nm,the excited light was just present in the half width range of the main absorption bands of Lycopene and β-carotene,so the resonance Raman effect can occur.Based on resonance Raman spectra,by on-body measuring the second harmonic of stretching vibration of carbon-carbon conjugated double bond in lycopene and β-carotene,the content of lycopene and β-carotene can be obtained according to the integrated intensity of each component calculated by software.And this provides a method for on-body determining the content of the components with the homologous group.
出处 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 2009年第12期3362-3364,共3页 Spectroscopy and Spectral Analysis
基金 国家自然科学基金项目(100774057)资助
关键词 共振拉曼光谱 Β-胡萝卜素 番茄红素 二次谐波 Resonance Raman spectroscopy Beta-carotene Lycopene Second harmonic
  • 相关文献

参考文献10

  • 1Baranska M,Schutze W,Schulz H.Anal.Chem.,2006,78:8456.
  • 2Franceschi S,Biodoli E M,La Vecchia.lnternation Journal of Cancer,1994,59:181.
  • 3Gerster H.Journal of the American College of Nutrition,1997,16:109.
  • 4Mills P K,Beeson W L,Phillips R L.Cancer,1989,64:598.
  • 5Giovannucci E,Ascherio A,Rimm E B.Journal of the National Cancer Institute,1995,87:1767.
  • 6Burmey P G J,Comstock G W,Morris J S.American Journal of Clinical Nutrition,1989,49:895.
  • 7Jarvinen R,Knekt P,Seppanen R.Cancer Letter,1997,114:251.
  • 8Cohen J H,Kristal A R,Stanford J L.Journal of the National Cancer Institute,2000,92(1):61.
  • 9Schulz H,Baranka M,Baranski R.Biopolymers,2005,77:212.
  • 10Ermakvo I V,Ermakova M R,Gellermann W,et al.Journal of Biomed.Optics,2004,9:332.

同被引文献53

引证文献5

二级引证文献10

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部