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Electronic noses

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Overview

Instrumental odor assessment
A world leader in sensing technologies that digitize the human senses, Alpha MOS offers electronic noses based on ultra fast gas chromatography technology.

Alpha MOS instruments for sensory analysis
Alpha MOS offers instruments and solutions for chemical profiling. Alpha MOS sensing technologies digitize the human senses and can provide an odor, taste or chemical profile of a product.


New food products development with an electronic tongue and an electronic nose
This application note describes the sensory evaluation of various formulations of snacks, with an aim to select the optimized product that will meet the market expectations. Eight formulations of snacks were analysed both by a sensory panel and by E-Nose and E-Tongue. The sample set includes snacks obtained based on different manufacturing processes that lead to different textures. The samples were pulverized using blade mixer before analysis, to get homogenised samples. The panel of trained assessors used a Quantitative Descriptive Analysis based on 26 descriptors among which 7 for texture, 5 for aroma, and 14 for flavor. The combination of E-Nose and E-Tongue measurements showed the same grouping of samples as the sensory panel.

Application to spiced sauce of qualitative and quantitative product deformulation with an electronic nose
In the context of the constant evolution of taste, marketing & R&D departments sometimes need to enter a re-engineering process in order to make their current products consistently match the market expectancies. This application note describes the comparative analysis of two similar spiced sauces with the Alpha MOS Ultra Fast GC based HERACLES Electronic Nose where “Brand A” sauce represents the sauce produced by the market leader. Their aromatic profiles were first compared. Then various herbs and spices were investigated in order to screen the possible ingredients entering the formulas prior to re-formulation.

Flavor assessment of food ingredients with the Alpha MOS FOX Electronic Nose
With electronic noses, formulation departments can achieve instrumental evaluation of aroma in correlation with a sensory panel scale and thus avoid safety concerns while reducing human workload, and determine the maximum storage date for food ingredients and final products.

Applications of an electronic nose in the brewing industry
The Alpha MOS FOX Electronic Nose can be used to rapidly assess the quality of incoming hops and assist in blending them. Additional applications include the identification of improperly manufactured products, and the study of shelf life stability and packaging interaction.


Monitoring quality of coffee supplies with an electronic nose
The Alpha MOS HERACLES Electronic Nose can be successfully employed to control the quality of coffee samples and detect aged products. HERACLES is a very powerful tool to rapidly assess the sensory quality of coffee batches upon receipt and to select suppliers.

Quality control of cocoa raw materials
In this study, the Alpha MOS FOX Electronic Nose demonstrates a good ability to classify cocoa raw materials used for chocolate production. Results are fully correlated with the sensory panel results and the system can be used 24 h a day to provide a reliable answer on quality level or flavor assessment of unknown samples or for comparing products with reference sample during process. Hence, the instrument is a precious help when developing new products or for quality control purposes.

Quality control of Omega-3 powders
With the Alpha MOS electronic noses, formulation
departments can achieve instrumental evaluation of aroma of Omega-3 powders in correlation with sensory panel scale, thus avoiding safety concerns while reducing human workload, and determine the optimum storage conditions for ingredients and final products.

Testing the odor masking efficiency of tablet coating by e-nose
Using the Alpha MOS FOX Electronic Nose it is possible to rapidly screen various tablet formulations and determine the amount of coating which allows to achieve the optimum odor masking.

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Articles


The Electronic Nose and Tongue: a powerful marketing and sales tools in the Japanese food and beverage industry

In Japan electronic nose and tongue instruments have been widely used as Research and Development tools particularly in the food, beverage and cosmetics industries for shelf life analysis or formulation developments. They are more and more used nowadays at the production floor as easy, reliable and fast organoleptic Quality Control instruments. They do give simple electronic signature correlated with the smell and taste qualities (quantitative or qualitative). They can also provide a chemical firewall instrument or early warning process indicators of any changes in the raw materials profiles or finished products qualities.

Electronic Nose and Tongue instruments are now included in sales and marketing tools. They are used by vendors in order to:

  • Guarantee objectively the batch to batch consistency of products to their customers by providing an electronic signature on every lot delivered
  • Outrun competitors by showing objective specifications of their products
  • Position their products versus competition

Electronic Nose and Tongue instruments can be not only part of a manufacturer's specifications under an electronic signature format within relationships with customers or suppliers, but they can also be used as powerful tools to objectivate the organoleptic the specifications of a manufacturer’s products.

This article presents examples where the Electronic Nose and Tongue are part of the marketing and sales efforts of food companies in Japan.

Application notes

Instrumental multi-sensory characterization of processed cheese
This study showed the interest of combining electronic nose, electronic tongue and electronic eye analyses in order to achieve a detailed sensory evaluation of food products.

Monitoring the quality and shelf life of cookies with an electronic nose
Date of creation: 
30 December 2015
Library code: 
10537
Assessment of the origin and purity of gelatin with an electronic nose
Date of creation: 
30 December 2015
Library code: 
10536
Quality control and detection of possible contamination of spices with e-nose
Date of creation: 
30 December 2015
Library code: 
10548
Competitive benchmarking of smoothies with HERACLES Electronic Nose
Date of creation: 
4 November 2015
Library code: 
10413
Effect of packaging on organoleptic properties of juices
Date of creation: 
3 November 2015
Library code: 
10410
Quality control monitoring of chocolate aroma with an electronic nose
Date of creation: 
21 November 2015
Library code: 
10442
Aroma differenciation of milk and milk by-products based on process and origin
Date of creation: 
2 November 2015
Library code: 
10402
Detection of alcohol and spirit adulteration
Date of creation: 
20 October 2015
Library code: 
10322
Quality control of PET bottles by electronic nose
Date of creation: 
21 October 2015
Library code: 
10326
Literature

Alpha MOS HERACLES Flash Gas Chromatography Electronic Nose
The HERACLES II is the most powerful and flexible electronic nose. This all-in-one instrument, both electronic nose and ultra fast gas chromatograph, performs overall odor profiling and chemical composition analysis in one run.

Ultra Fast GC Electronic Nose vs GC-MS
Date of creation: 
17 October 2015
Library code: 
10290
Alpha MOS AroChemBase
Date of creation: 
17 October 2015
Library code: 
10289
Alpha MOS instruments for sensory analysis
Date of creation: 
15 October 2015
Library code: 
10280