Solid-phase micro-extraction (SPME-GC) and sensors as rapid methods for monitoring lipid oxidation in nuts

Dry foods with high fat content are susceptible to lipid oxidation, which involves a quality deterioration of the product, since this process is responsible for the generation of off-flavours. Hexanal is considered to be a good shelf-life indicator of such oxidation products. In addition, due to its high volatility, hexanal can be easily determined by fast headspace analytical techniques. For this reason an electronic nose comprising ten metal oxide semiconductors (MOS) and a solid-phase microextraction (SPME) coupled with gas chromatography and flame ionization detector (GC-FID) method were compared in order to determine hexanal formed in hazelnuts during storage under different conditions (room temperature, 40°C, ultraviolet light, with and without oxygen scavenger). The results obtained by the two methods showed a good correlation, confirming the possibility of using a multi-sensor system as a screening tool for the monitoring of shelf-life and oxidation state of nuts.

[1]  J. Krochta,et al.  Accelerated shelf life testing of whey-protein-coated peanuts analyzed by static headspace gas chromatography. , 2002, Journal of agricultural and food chemistry.

[2]  R. Ahvenainen,et al.  Monitoring of taints related to printed solid boards with an electronic nose , 2002, Food additives and contaminants.

[3]  Eric Chanie,et al.  Shelf life determination by electronic nose: application to milk , 2005 .

[4]  F. Augusto,et al.  Screening of Brazilian fruit aromas using solid-phase microextraction-gas chromatography-mass spectrometry. , 2000, Journal of chromatography. A.

[5]  S. Pastorelli,et al.  Solid-phase microextraction method for the determination of hexanal in hazelnuts as an indicator of the interaction of active packaging materials with food aroma compounds , 2006, Food additives and contaminants.

[6]  J. Gardner,et al.  Electronic noses and their application in the food industry , 1997 .

[7]  Tiina Rajamäki,et al.  Application of an electronic nose for quality assessment of modified atmosphere packaged poultry meat , 2006 .

[8]  H. Stone,et al.  Comparison of sensory and consumer results with electronic nose and tongue sensors for apple juices , 2002 .

[9]  Ingemar Lundström,et al.  Odour analysis of paperboard, the correlation between human senses and electronic sensors using multivariate analysis , 1998 .

[10]  Udo Weimar,et al.  Complementary analytical measurements based upon gas chromatography-mass spectrometry, sensor system and human sensory panel: a case study dealing with packaging materials , 2001 .

[11]  José Luis Pérez Pavón,et al.  Classification of vegetable oils by linear discriminant analysis of Electronic Nose data , 1999 .

[12]  C. Natale,et al.  Electronic nose as a non-destructive tool to evaluate the optimal harvest date of apples , 2003 .

[13]  François Fenaille,et al.  Comparison of mass spectrometry-based electronic nose and solid phase microextraction gas chromatography-mass spectrometry technique to assess infant formula oxidation. , 2003, Journal of agricultural and food chemistry.

[14]  Roberto Paolesse,et al.  Comparison and integration of different electronic noses for freshness evaluation of cod-fish fillets , 2001 .

[15]  F. Monahan,et al.  A comparison of solid-phase microextraction (SPME) fibres for measurement of hexanal and pentanal in cooked turkey , 2000 .

[16]  E. Stashenko,et al.  SPME determination of volatile aldehydes for evaluation of in-vitro antioxidant activity , 2002, Analytical and bioanalytical chemistry.

[17]  E. Schaller,et al.  ‘Electronic Noses’ and Their Application to Food , 1998 .

[18]  D. Kohl.  Oxidic Semiconductor Gas Sensors , 1992 .

[19]  C. Natale,et al.  An electronic nose and a mass spectrometry-based electronic nose for assessing apple quality during shelf life , 2004 .

[20]  Ingemar Lundström,et al.  Identification of paper quality using a hybrid electronic nose , 1995 .

[21]  D. L. García-González,et al.  Classification of different quality virgin olive oils by metal-oxide sensors , 2004 .

[22]  Evor L. Hines,et al.  Electronic nose based tea quality standardization , 2003, Neural Networks.

[23]  Naresh Magan,et al.  Early detection and differentiation of spoilage of bakery products , 2005 .

[24]  Tetsuo Aishima,et al.  Correlating sensory attributes to gas chromatography-mass spectrometry profiles and e-nose responses using partial least squares regression analysis. , 2004, Journal of chromatography. A.

[25]  P. Mallikarjunan,et al.  Optimizing an electronic nose for analysis of volatiles from printing inks on assorted plastic films , 2002 .

[26]  Zenilda de Lourdes Cardeal,et al.  Analysis of volatile compounds in some typical Brazilian fruits and juices by SPME-GC method , 2005, Food additives and contaminants.

[27]  L. Skibsted,et al.  Storage stabilities of pork scratchings, peanuts, oatmeal and muesli: Comparison of ESR spectroscopy, headspace-GC and sensory evaluation for detection of oxidation in dry foods , 2005 .

[28]  Ramón Natera Marín,et al.  Headspace solid-phase microextraction analysis of aroma compounds in vinegar. Validation study. , 2002, Journal of chromatography. A.

[29]  M. A. Nobile.  Packaging design for potato chips , 2001 .

[30]  Pietro Siciliano,et al.  Monitoring of rancidity of milk by means of an electronic nose and a dynamic PCA analysis , 2001 .

[31]  F. Shahidi.  Headspace volatile aldehydes as indicators of lipid oxidation in foods. , 2001, Advances in experimental medicine and biology.

[32]  Sameer Singh,et al.  Fuzzy neural computing of coffee and tainted-water data from an electronic nose , 1996 .

[33]  C. Natale,et al.  Electronic nose systems to study shelf life and cultivar effect on tomato aroma profile , 2004 .

[34]  E. Ibáñez,et al.  Truffle aroma analysis by headspace solid phase microextraction. , 2002, Journal of agricultural and food chemistry.

[35]  S. Pastorelli,et al.  Investigation of the Interaction of Active Packaging Material with Food Aroma Compounds , 2005 .

[36]  Udo Weimar,et al.  Odours and flavours identified with hybrid modular sensor systems1 , 1997 .

[37]  R. Beaudry,et al.  Solid phase microextraction-gas chromatography for quantifying headspace hexanal above freeze-dried chicken myofibrils. , 2003, Journal of agricultural and food chemistry.

[38]  C. Grimm,et al.  Identification of volatile compounds in cantaloupe at various developmental stages using solid phase microextraction. , 2001, Journal of agricultural and food chemistry.

[39]  Carmelo García Barroso,et al.  Headspace solid-phase microextraction analysis of aroma compounds in vinegar. Validation study. , 2002, Journal of chromatography. A.

[40]  E. Martinelli,et al.  The evaluation of quality of post-harvest oranges and apples by means of an electronic nose , 2001 .

[41]  Julian W. Gardner,et al.  A brief history of electronic noses , 1994 .

[42]  R. Cava,et al.  Effect of the type of frying culinary fat on volatile compounds isolated in fried pork loin chops by using SPME-GC-MS. , 2004, Journal of agricultural and food chemistry.

[43]  T. Talou,et al.  Exemples d'application aux produits carnés des senseurs de gaz à semi-conducteurs , 1993 .

[44]  B. Lewis,et al.  Free radical scavenging and antioxidative activity of caffeic acid amide and ester analogues: structure-activity relationship. , 2002, Journal of agricultural and food chemistry.

[45]  T. Cleveland,et al.  Identification of volatile compounds in soybean at various developmental stages using solid phase microextraction. , 2003, Journal of Agricultural and Food Chemistry.

[46]  G. Nute,et al.  The measurement of the responses to different odour intensities of `boar taint' using a sensory panel and an electronic nose. , 1998, Meat science.