Genetically modified material

Holst-Jensen, A., and Berdal, K. G. (2004),The modular analytical procedure and validation approach and the units of measurement for genetically modified materials in foods and feeds, J. AO AC Int., 87,1-9. 

A UK study showed that consumers bought organic eggs because they were perceived as being healthier, free of chemicals and genetically modified materials, and because they tasted better (Stopes et al.r 2001). In addition consumers expected that the laying flocks were maintained under more humane and improved welfare conditions. This research confirms that consumer acceptance of organic poultry products depends to some extent on the nature of the production system and that consumers expect a land-based production system, particularly one based on a small flock size. 

An interesting new oil is a mid-oleic sunflower oil known as NuSun . This contains 7-9% saturated acids, 50-75% oleic acid, 20-30% linoleic acid, and <1% a-linolenic acid. In its level of oleic acid, it falls between those of commodity sunflower oil (-20%) and high-oleic varieties (-70-90%). This non-genetically modified material was developed in the USA and was grown on 40 000 hectares in 1998, producing 20 000-25 000 tormes of oil. The... 

ChE will be challenged to develop creative process for recycling of waste materials, rather than burning or discarding them. One potential process is bioremediation, using genetically modified microorganisms to decompose the waste. This approach has already been applied to the treatment of oil spills. 

Pryme, I.F. and Lembcke, R. (2003). In vivo studies on possible health consequences of genetically modified food and feed - with particular regard to ingredients consisting of genetically modified plant material, Nutrition and Health, 17, 1-8. 

Aquifer Pseudomonas sp. B13 (degrades 3-chlorobenzene) >365 Compared survival of previously introduced nonrecombinant (B13) in containment plume with microcosm composed of the same aquifer material and introduced both B13 and the genetically modified FR120. Krumme et al. (1994)... 

For thousands of years, indigo was produced from plant material containing low concentrations of indican, a precursor of the dye. Indican is split by enzymes and converted to indigo by oxidation. Indigo can be synthesized from D-glucose by genetically modified strains of coli bacteria, presumably by a process that resembles biosynthesis in plants. 

Consumer acceptance is not a big issue yet, but is one to keep an eye on. Supermarket chains in the UK have refused a biopolymer because it was derived from genetically modified plants, despite the fact that it is an eco-friendly material. There is even a discussion as to whether vitamins produced by fermentation... 

Keywords biotechnology Genetically modified organisms Polymerase chain reaction Reference materials... 

---