期刊文献+

核桃油中掺大豆油的同步荧光光谱快速鉴别(英文) 被引量:3

Rapid Quantitative Determination of Walnut Oil Adulteration with Soybean Oil by Synchronous Fluorescence Spectroscopy
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摘要 展示了同步荧光光谱法在核桃油掺大豆油鉴别以及同步荧光法结合多元分析对掺假核桃油进行评价方面的应用潜力.获得同步荧光光谱的激发波长范围为250~700 nm,波长间隔范围为10~100 nm.核桃油和大豆油的等值同步荧光光谱相比较,发现在激发波长低于275 nm范围内,核桃油具有特殊的荧光谱图.研究过程使用了51个以不同比例大豆油掺假的核桃油混合样品,采用偏最小二乘法分别对波长间隔为20、40、80 nm的同步荧光谱图数据进行回归,实现对核桃油掺假情况的定量分析.本研究可以在2.5 min内实现对核桃油掺大豆油比例在0.6%以上的样品进行快速检测. In this paper, the potential of using total synchronous fluorescence (TSyF) spectra to differentiate walnut oil from soybean oil and synchronous fluorescence (SyF) spectra combined with multivariate analysis to assess the adulteration of walnut oil is demonstrated. TSyF spectra are acquired by varying the excitation wavelength in the region 250 - 700 nm and the wavelength interval ( AA ) in the region from 10 to 100 nm. TSyF contour plots for walnut oil, in contrast to soybean oil, show an extra fluorescence region in the excitation wavelength lower than 275 nm. Fifty one oil mixtures are prepared by adulterating walnut oil with soybean oil at varying levels. The partial least - squares regression model is used for quantification of the adulteration using wavelength intervals of 20, 40 and 80 nm. This technique is useful for detection of soybean oil in walnut oil at levels down to 0.6% (v/v) in just 2.5 minutes.
出处 《昆明理工大学学报(自然科学版)》 CAS 北大核心 2012年第4期72-77,共6页 Journal of Kunming University of Science and Technology(Natural Science)
基金 Supported by the Financial Support of State Science and Technology Support Program(2011BAD46B00) the Yunnan Provincial Foundation of Science and Technology(2009ZC046M)
关键词 核桃油 掺假 食用油 荧光光谱 偏最小二乘法 walnut oil adulteration edible oil fluorescence spectrum partial least - squares
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参考文献20

  • 1Martinez M L, Mattea M A, Maestri D M. Pressing and supercritical carbon dioxide extraction of walnut oil [ J]. Journal of Food Engineering, 2008, 88:399 -404.
  • 2Martfnez M L, Mattea M A, Maestri D M. Varietal and crop year effects on lipid composition of walnut (Juglans regia L. ) genotypes [J]. Journal of American Oil Chemists Society, 2006, 83:791 -796.
  • 3Crews C, Hough P, Godward J, et al. Study of the main constituents of some authentic walnut oils [ J]. Journal of Agriculture and Food Chemistry, 2005, 53 : 4853 -4860.
  • 4Li L, Tsao R, Yang R, et al. Fatty acid profiles, tocopherol contents, and antioxidant activities of heartnut (Juglans ailanthifolia Var. cordiformis) and persian walnut (Juglans regia L. ) [J], Journal of Agriculture and Food Chemistry, 2007, 55: 1164-1169.
  • 5Pereira J A, Oliveira I, Sousa A, et al. Bioactive properties and chemical composition of six walnut (Juglans regia L. ) cuhi- vars [J]. Food and Chemical Toxicology, 2008, 46:2103 -2111.
  • 6Zhang Z, Liao L, Moore J, et al. Antioxidant phenolic compounds from walnut kernels (Juglans regia L. ) [ J ]. Food Chem- istry, 2009, 113: 160-165.
  • 7Oliveira R, Rodrigues M F, Bernardo - Gil M G. Characterization and supercritical carbon dioxide extraction of walnut oil [J]. Journal of American Oil Chemists Society, 2002, 79:225 -230.
  • 8Mathias E V, Halkar U P. Separation and characterization of lignin compounds from the walnut (Juglans regia) shell oil using preparative TLC, GC- MS and 1H NMR [J]. Journal of Analytical and Applied Pyrolysis, 2004, 71:515 -524.
  • 9Savage G P, Dutta P C, Mcneil D L. Fatty acid and tocopherol contents and oxidative stability of walnut oils [J]. Journal ofAmerican Oil Chemists Society, 1999, 76: 1059- 1063.
  • 10Amaral J S, Seabra R M, Andrade P B, et al. Phenolic profile in the quality control of walnut (Juglans regia L. ) leaves [J]. Food Chemistry, 2004, 88- 373 -379.

同被引文献40

  • 1陈丹,赵声兰.核桃油保健及药用功效研究[J].亚太传统医药,2009,5(1):27-29. 被引量:23
  • 2张清安,李建科,李泽珍.核桃油对小鼠肝脏与脑组织的抗氧化作用[J].营养学报,2004,26(5):408-409. 被引量:35
  • 3海铮,王俊.基于电子鼻山茶油芝麻油掺假的检测研究[J].中国粮油学报,2006,21(3):192-197. 被引量:79
  • 4冯志勇,谷克仁.紫外光谱法测定芝麻素与芝麻林素含量[J].中国粮油学报,2006,21(3):296-300. 被引量:24
  • 5李时珍(明).本草纲目(下册)[M].北京:人民卫生出版社,1982:1084
  • 6翟爱华,谢宏.粮油检验[M].北京:科学出版社,2011:194-196.
  • 7陆婉珍,袁洪福,徐广通,等.现代近红外光谱分析技术[M].北京:中国石化出版社,2011.19-23.
  • 8Berenice Cortes, Isabel Nfifiez, Montserrat Cof0.n, et al. Acute effects of high -fat meals enriched with walnuts or olive oil on postprandial endothelial function [ J ]. Journal of the Ameri- can College of Cardiology, 2006,48 ( 8 ) : 1666 - 1671.
  • 9Cimato A, Monaco D, Distantev C. Analysis of single - culti- var extra virgin olive oils by means of an electronic nose and HS- SPME/GC/MS methods [ J ]. Sensors and Actuators B, 2006,114:674 - 680.
  • 10Oliveros M C C, Pav6n J L P, Pinto C G, et al. Electronic nose based on metal oxide semiconductor sensors as a fast alternative for the detection of adulteration of virgin olive oils [ J ]. Analytica Chimica Acta,2002,459 (2) :219 - 228.

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