Rapid or alternative methods

This group of methods can be applied to routine quality control analyses or for process control of food additives. Many publications describe new developments but few validated procedures are available in the literature. Some applications used within the food industry remain unpublished but some details are given below. A wide variety of techniques are available including biosensors, enzymatic, pH differential methods, X-ray fluorescence and NIR. 

L-ascorbic acid Potentiometric Based on ascorbate oxidase of natural source immobilised on ethylene-vinylacetate membrane Fernandes et al. (1999) 

L-ascorbic acid Amperometric Enzyme-less biosensor using poly-L-histidine-copper complex as an alternative biocatalyst Hasebe et al. (1998) 

Antioxidants Optical fibre chemiluminescence Immobilised luminol/haematin reagent phase Palaroan et al. (2000) 

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Rapid or alternative methods. These techniques are used increasingly to control concentrations of additives in raw materials and finished products and should have some of the following characteristics ... 

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