The trend towards organic cotton is growing rapidly. However, the higher prices are only justified if independent proof of organic production is provided. Time and again, genetically modified cotton is incorrectly labeled with certifications that skip laboratory tests or only take random seed samples.
Hohenstein has developed molecular biological detection systems especially for cotton products. We cover all aspects of the supply chain, from raw cotton to yarns and fabrics to end products. Manufacturers, brands, certifiers and consumer protection organizations benefit from clear yes / no results for GMO-free cotton products.
- The sample is crushed and cotton fibers are mechanically and enzymatically extracted. The genetic material (DNA) is separated from the fibers and purified through a multi-stage process.
- If the DNA contains a specific target sequence (gene marker), genetic modification is indicated and molecular biological evidence is obtained. Control reactions serve to verify unaltered cotton DNA and to exclude false-negative results.
Generally, the DNA is protected in the nucleus of the cotton fiber. In some cases (eg. heavily processed cotton where no more DNA is available), DNA analysis does not work for end products. Then, you can retrace the processing and test the raw materials instead.
- Product optimization
- Product identification
- Marketing claim verification
- Protection against piracy
- Quality control