By P. R. Ashurst, M. J. Dennis (auth.), P. R. Ashurst, M. J. Dennis (eds.)

The factor of foodstuff authenticity isn't really new. for hundreds of years unscrupulous farmers and investors have tried to 'extend', or othewise modify, their items to maximize sales. in recent times the topic has reached new prominence and there also have been events the place foodstuff authenticity has featured as a newspaper headline in numerous nations. nutrition laws protecting the definition, and from time to time composition, of assorted commodities has been in position in built international locations for a few years and satirically it's the legislative development clear of emphasis on composition and extra on actual and truthfullabeliing that has been one driver for the authenticity factor. one other, and lots of could speculate because the stronger, motive force is the stream in the direction of fewer and bigger grocery store chains in lots of international locations. Such buying and selling businesses with their photos of caliber items, paying for energy and advertisement status, workout substantial advertisement energy which has been claimed as an important resource of monetary strain on nutrition costs and meals commodity product caliber. For no matter what cause, fresh nutrition authenticity concerns became information and shoppers, the media and enforcement professionals are exhibiting extra curiosity than ever ahead of within the subject.

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6). There are several laboratories that are, at present, looking at the use of capillary gas chromatography to detect the presence of unusual oligosaccharides in juices. This approach is reported to have certain advantages over the HPAEC-PAD method and to be able to detect invert syrups at lower levels (Ooghe, 1994; Low, 1995) (see note at end of chapter). 5 Oligosaccharide profile of a normal raspberry puree. 6 Abnormal oligosaccharide profile showing addition of glucose syrup to a raspberry puree.

AIJN codes of practice are presently published for orange, apple, grapefruit, grape and pineapple (Anon, 1994). These codes are based on RSK and AFNOR formats with ranges and guide values and have also adopted the RSK concept of a commentary to assist in the interpretation of the results. The actual ranges adopted within the respective codes have been decided by discussion and negotiation between experts from the various fruit juice industries of Europe. The continued development of this pan-European system over the last few years has meant that AIJN incorporated some of the isotopic procedures into its codes, which is a significant step forward.

1993). It is used quite commonly in honey where the sugars and protein b 13C values are compared to ensure that no HFCS has been added. This type of comparison has also been applied to juice where the soluble solids and the pulp are used (Bricout and Koziet, 1987; Parker, 1982). It has also been found that stable carbon isotope ratio analysis can be useful when detecting the adulteration of certain flavour compounds. , 1993), enabling the measurement of the different proportions of the two isotopes in the flavour compounds as they elute from the capillary GC column.

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