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Spectroscopy

 

article

Application of non-destructive techniques for the monitoring of red wine fermentation

4 January 2012 | By Susanna Buratti and Gabriella Giovanelli, Department of Food Science and Technology, University of Milan

The rapid pace of change in the wine industry calls for fast methods providing real time information in order to assure the quality of the final product. NIR and MIR spectroscopy combined with sensory-instrumental methods (electronic nose and electronic tongue) can provide an ideal solution to monitor molecular and sensory…

article

NIR and class-modelling methods for brand protection in food and beverages

6 September 2011 | By Professor Gerard Downey, Teagasc Food Research Centre Ashtown

The penetration of on-line NIR equipment in the food processing industries continues to grow as companies realise the full potential of this technique. For the most part, it is deployed to monitor concentrations of key components in a raw material or finished food product and, with the use of feedback…

article

Screening of acrylamide contents in potato crisps using VIS and NIR technology

13 May 2011 | By Vegard H. Segtnan and Svein H. Knutsen, Nofima AS, The Norwegian Institute of Food, Fisheries and Aquaculture Research

Acrylamide is considered a potential carcinogen and is present at elevated concentrations in different types of heat-treated foods. It is formed during baking, frying and roasting of raw materials from plant origin, particularly potatoes and cereals. Acrylamide is one of the reaction products in the Maillard reaction between the acrylamide…

article

Monitoring the shelf life of minced beef meat using NIR and MIR spectroscopy

3 March 2011 | By Nicoletta Sinelli and Ernestina Casiraghi, DiSTAM, Department of Food Science and Technology, Università degli Studi di Milano

The meat processing industry has shown an increasing demand for fast and reliable methods to determine product quality characteristics during the last few decades. Traditional quality analyses based on chemistry and microbiology have several drawbacks, the most significant of which are low speed, use of chemical products, high manual dexterity,…

Conserve Italia
Conserve Italia
article

Ensuring global food safety through multi-residue monitoring of pesticides

15 December 2010 | By Gerry Broski, Food Safety Director, Thermo Fisher Scientific and Renzo Boni, Laboratory Manager, Conserve Italia

There are currently over one thousand recognised pesticides utilised in the production of foodstuffs worldwide, with the requirement for pesticide usage growing as consumer demand for food at a low cost and out of season increases. With pesticides such as lindane and carbendazim linked with cancer, fertility problems and hormone…

article

Ice fraction assessment by near infrared spectroscopy

26 August 2010 | By Astrid Stevik, Research Scientist, SINTEF

The discussion of the energy crisis for a steadily growing population is often limited to scarce amounts of electric power based on more or less environmentally friendly energy sources. However, lack of food, and in particular fresh food, is also part of the current energy crisis. Fresh food is one…

article

Using LC-MS to study the fate of food ingredients in the human body

12 May 2010 | By Christian H. Grün & Hans-Gerd Janssen, Unilever Research and Development, Advanced Measurement & Data Modelling

The human body is designed for effectively extracting nutrients from the food we eat. The nutrients provide the body with energy, but in addition, they also provide the building blocks for cell growth. More recently, it has also been realised that specific food ingredients can be associated with a direct…

article

The value of a number

12 December 2009 | By Richard Dempster, Director, Product and Technological Development, AIB International

Often, we get in the habit of accepting numbers from computerised displays without regard to accuracy or precision, and when we do evaluate a number, we often look at how precise it is. We forget that we can be very precisely wrong. We don't really pay close attention to numbers…

article

Hyperspectral chemical imaging maps food composition in laboratory and on-line

10 September 2009 | By T. Hyvärinen & H. Karjalainen, SPECIM, Spectral Iimaging Ltd; D. Nilsson, Umbio AB and K. Lynch, Gilden Photonics

Hyperspectral imaging combines digital imaging with precise spectral information in each image pixel. It enables composition mapping in food and agricultural raw materials and products based on differences in the spectral signatures of the various chemical ingredients. Advances in hyperspectral cameras and image processing solutions are now making hyperspectral imaging…

article

Mapping food composition using NIR hyperspectral imaging

18 August 2008 | By S.J. Millar, M.B. Whitworth, A. Chau, Campden & Chorleywood Food Research Association and J.R. Gilchrist, Gilden Photonics Ltd

Near infrared (NIR) spectroscopy is widely used in the global agri-food industry for the non-destructive assessment of both the compositional and physical characteristics of a wide range of raw materials and finished products. This is particularly so in the cereals and related industries where, following the commercial development of suitable…

article

Testing NIR Spectroscopy for drip loss prediction

28 February 2008 | By Marjeta Candek-Potokar, Agricultural Institute of Slovenia and Maja Prevolnik, University of Maribor, Faculty of Agriculture, Maribor, Slovenia

Meat quality has many different meanings. To some, quality refers to aspects of the carcass in respect to weight, fat cover and distribution, muscling/conformation and bruising. To others, quality refers to aspects such as chiller assessment attributes ie. meat colour, intermuscular fat colour and marbling. In pork, the attention of…

article

Using near infrared (NIR) spectroscopy for the non-invasive assessment of food

4 September 2007 | By Dr. Sam Millar, Campden & Chorleywood Food Research Association

Near infrared (NIR) spectroscopy offers users a rapid, non-destructive means of assessing a range of different food ingredients and finished products. Since its commercial development as a technique in the 1970s, it has been widely applied in a number of food sectors, particularly those related to cereal products. As instrumentation…

article

Online transflectance NIR imaging of foods

7 March 2007 | By Vegard H. Segtnan, Jens Petter Wold and Martin Høy, Matforsk AS, Norway and Jens T. Thielemann and Jon Tschudi, SINTEF ICT, Norway

Most solid foods are heterogeneous on one level or another. Minced meat or an intact piece of meat, for example, will have smaller or larger local regions that are almost pure fat, pure lean meat or pure connective tissue. For such heterogeneous foods the distribution of the local differences is…

article

Innovative uses of NIR to improve baking

21 November 2005 | By Dr. Richard Dempster, American Institute of Baking

Near Infrared Reflection (NIR) is an established and valid measurement method for many specific compounds, (moisture, protein, fat, etc.) within the food industry. Recently, two ideas have emerged from the American Institute of Baking (AIB). The first is to use NIR to monitor processes and the second is to use…

article

Evaluating chocolate blends

3 May 2005 | By S.J. Millar and A.G. Hall, Baking and Cereals Processing Department, Campden & Chorleywood Food Research Association

Chocolate is widely appreciated globally as a luxury food. Although its introduction to Europe and the rest of the world occurred some 500 years ago, the cocoa bean had been recognised as a highly significant plant in South America for thousands of years prior to that – having been cultivated…