Oxidative changes in pork scratchings, peanuts, oatmeal and muesli viewed by fluorescence, near-infrared and infrared spectroscopy

被引:13
作者
Jensen, PN [1 ]
Christensen, J [1 ]
Engelsen, SB [1 ]
机构
[1] Royal Vet & Agr Univ, Ctr Adv Food Studies, Dept Food Sci, DK-1958 Frederiksberg C, Denmark
关键词
lipid oxidation; infrared-spectroscopy; visual/near-infrared; fluorescence; peanuts; pork scratchings; oatmeal; muesli;
D O I
10.1007/s00217-004-0954-x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The possibility of using rapid spectroscopic methods to detect lipid oxidation of four standard food products-peanuts, pork scratchings, oatmeal and muesli-were investigated in a large screening experiment. Fluorescence, near-infrared [including visual (Vis/NIR)] and infrared (IR) spectra have been recorded during and beyond the normal shelf lives of the products and related by means of multivariate data analysis to reference oxidation measures of free radicals and hexanal, as well as to sensory evaluation. For pork scratchings, the three spectroscopic techniques were able to monitor the progressing level of oxidation: IR with good correlation to hexanal (r(2)=0.86), Vis/NIR with good correlations to free radicals (r(2)=0.82) and fluorescence with good correlations to both free radicals (r(2)=0.76) and hexanal (r(2)=0.83). In the case of IR, the best result was obtained using the region including the out-of-plane C-H of trans-fatty acids. For the other three products, the results were generally inferior except for good correlations between fluorescence spectra and free radicals in peanuts (r(2)=0.73) and between Vis/NIR spectra and hexanal for muesli products (r(2)=0.8).
引用
收藏
页码:294 / 304
页数:11
相关论文
共 51 条
[1]  
Andersen ML, 2002, EUR J LIPID SCI TECH, V104, P65, DOI 10.1002/1438-9312(200201)104:1<65::AID-EJLT65>3.0.CO
[2]  
2-3
[3]   Front-face fluorescence spectroscopy and chemometrics in analysis of yogurt: Rapid analysis of riboflavin [J].
Becker, EM ;
Christensen, J ;
Frederiksen, CS ;
Haugaard, VK .
JOURNAL OF DAIRY SCIENCE, 2003, 86 (08) :2508-2515
[4]   IDENTIFICATION OF SOME WHEAT-VARIETIES BY NEAR-INFRARED REFLECTANCE SPECTROSCOPY [J].
BERTRAND, D ;
ROBERT, P ;
LOISEL, W .
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, 1985, 36 (11) :1120-1124
[5]   DISCRIMINANT-ANALYSIS OF VEGETABLE-OILS BY NEAR-INFRARED REFLECTANCE SPECTROSCOPY [J].
BEWIG, KM ;
CLARKE, AD ;
ROBERTS, C ;
UNKLESBAY, N .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1994, 71 (02) :195-200
[6]   Application of fluorescence spectroscopy and chemometrics in the evaluation of processed cheese during storage [J].
Christensen, J ;
Povlsen, VT ;
Sorensen, J .
JOURNAL OF DAIRY SCIENCE, 2003, 86 (04) :1101-1107
[7]   Quantitative Fourier transform infrared analysis for anisidine value and aldehydes in thermally stressed oils [J].
Dubois, J ;
vandeVoort, FR ;
Sedman, J ;
Ismail, AA ;
Ramaswamy, HR .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1996, 73 (06) :787-794
[8]   A SPECTROPHOTOFLUOROMETRIC STUDY OF COMPOUNDS OF BIOLOGICAL INTEREST [J].
DUGGAN, DE ;
BOWMAN, RL ;
BRODIE, BB ;
UDENFRIEND, S .
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1957, 68 (01) :1-14
[9]  
DUNMIRE DL, 1990, CEREAL FOOD WORLD, V35, P913
[10]   Explorative spectrometric evaluations of frying oil deterioration [J].
Engelsen, SB .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1997, 74 (12) :1495-1508