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Hohenstein unveils method to detect GMOs in cotton

Aug 19, 2021
Hohenstein unveils method to detect GMOs in cotton

BÖNNIGHEIM, Germany

A new qualification method has been developed by the Textile testing partner Hohenstein which has been qualified to detect the type and extent of genetic modifications in organic cotton.

Hohenstein uses DNA analysis for the identification of the genetic modifications and also for the calculation of its percentage in the organic cotton. This data can be used by the stakeholders to differentiate between mixtures and contaminations, verify claims, and control quality. There are two steps for this test- one is the qualitative screening and the other is the identification and qualification of genetically modified cotton.

Hohenstein has a molecular biological detection system that is used for qualitative screening. It is a reliable method for providing evidence of the presence or absence of GMOs in cotton. Hohenstein is also one of the few laboratories in the world that has ISO 17025 accreditation to test GMOs as per the ISO/IWA 32:2019 protocol.

Hohenstein experts can identify the type and proportion of the GMOs once the qualitative analysis detects genetic modification. These experts use DNA analysis to check for cotton lines with genetic alterations and then use this data to qualify their proportion in the sample. This is very precise information that is used to check if a small proportion of GMOs is due is to contamination or if the genetically modified materials have been mixed in. This information gives clear benefits to retailers, brands, and manufacturers in case of fraud prevention and supply chain transparency.

In recent times, there has been a sharp rise in demand for organic cotton products. It is also seen that genetic modifications are found in textiles even if they are labelled with organic claims.

Source – Hohenstein

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