Home / Knowledge / News / Textiles / Viral bioindicator laundering process tested for virucidal efficacy
Viral bioindicator laundering process tested for virucidal efficacy
28
Aug '09
In May 2009, the Institute for Hygiene and Biotechnology (IHB) at the Hohenstein Institute first introduced a new way to test disinfectant laundering processes for their virucidal efficacy by using a viral bioindicator based on the bacteriophage MS2. Through further modification of this testing method and trials carried out using a commercial, conventional process listed by the RKI at a laundry, the researchers at Hohenstein have successfully proven that viral bioindicators can be used to assess objectively the virucidal efficacy of disinfectant laundering processes not only in simulated laundering processes, but also under actual, field conditions. Starting now, this new testing method allows the IHB at the Hohenstein Institute to offer an effective quality assurance tool for the detergent industry and laundering operations. Beyond that, in view of the increasing number of cases of viral illness, an important, additional tool has also been made available for preventive health care.

The viral bioindicator is, therefore, a novelty in the area of applied hygiene. Due to the lack of a suitable testing method, there have been until today no criteria for monitoring anti-viral (virucidal) efficacy of disinfectant laundering processes in the field. Using a method analogous to the standard techniques used by the German Association for Hygiene and Microbiology (Deutsche Gesellschaft für Hygiene und Mikrobiologie (DGHM)) to assess the bactericidal efficacy of chemical disinfectant processes, the IHB in May carried out laundering trials with test textile swatches contaminated with the bacteriophage MS2 (a pathogen similar to Norovirus). In laboratory conditions similar to those in the field, it was demonstrated that the bioindicators containing bacteriophages such as MS2 are suitable for testing and proving the virucidal efficacy of disinfectant laundering.

The Hohenstein Institute's newly developed method is even appropriate for suitability testing of disinfectant laundering processes in field conditions in accordance with the Sections 4.4.3 and 6.4 of the guidelines of the Commission for Hospital Hygiene and Applied Infection Control of the Robert Koch Institute. Upon successful completion of this special suitability test, it is incumbent upon the consultant in charge of hygiene at the IHB to recognise the disinfectant efficacy of the laundering process.

This means that in future it will be possible to use a viral bioindicator to test reprocessing of Sector B (effective against viruses) laundry in the field in a way comparable to the procedure for quality assurance currently used for bactericidal laundry (Sector A).

Laundry detergent manufacturer CHT R. Beitlich GmbH agreed to become a pilot customer and became the first to use viral bioindicators in practice. Laundering tests were carried out at the facility of Busch Textilservice GmbH & Co. KG in Bärenbach. In this field trial, bioindicators were applied in three independent, tunnel washer laundering cycles. At the same time, all process parameters were monitored, as well as sampling washwater for presence of the test virus. In experiments carried out under field conditions, CHT R. Beitlich GmbH's BEICLEAN HWA/BEIBLEACH WP35 process listed by the RKI achieved perfect results. As a result, the virucidal efficacy of the listed process could be confirmed in testing under actual field conditions.

Hohenstein Institute


Must ReadView All

Courtesy: Pexels

Fashion | On 23rd Jun 2018

Nigerian bank launches N1 bn fund for fashion entrepreneur

Nigeria’s Bank of Industry has set aside 1 billion Naira (N) to...

Courtesy: Tayal

Textiles | On 23rd Jun 2018

Tayal textile factory in Algeria starts exports to Turkey

Algeria’s largest textile factory, the joint Algerian-Turkish company ...

Courtesy: Manhattan Beachwear

Fashion | On 23rd Jun 2018

Manhattan Beachwear in global partnership with BCBG Group

Manhattan Beachwear, the largest swimwear manufacturer in the US, has ...

Interviews View All

Giovanni Pizzamiglio, Paolo Crespi & Riccardo Robustelli
Epson, For.Tex & F.lli Robustelli

‘The percentage share of printing in the global textile market is pretty...

Mandeep Nagi
Shades of India

Women value something that is unique and has a flavour of India

Darshan Mehta
Infinium Polychem

We are spending double digit figures on R&D

Carolin Russ

Weko, Weitmann & Konrad GmbH & Co KG, based in south Germany, is...

Tom Adeyoola

Describing itself as the best body shape and garment fit company in the...

Urmil Arya

Sushila International, a well established textile organisation established ...

Urs Stalder
Sanitized AG

Urs Stalder, CEO, Sanitized AG, talks about the increasing use of hygiene...

Marcel Alberts
Eurofibers

Coating at a fibre level is a practice not usually seen in the...

Silke Brand-Kirsch
Schlegel und Partner

Silke Brand-Kirsch, executive partner of Schlegel und Partner, a leading...

Judy Frater
Somaiya Kala Vidya

Among the many honours showered on Frater, including Fulbright and Ford...

Rupa Sood and Sharan Apparao
Nayaab

Nayaab, an exhibition meant to celebrate Indian weaves, is in its second...

Igor Chapurin
Chapurin

"Now we can see the Russian trend in international fashion. And Russian...

Press Release

Press Release

Letter to Editor

Letter to Editor

RSS Feed

RSS Feed

Submit your press release on


editorial@fibre2fashion.com

Letter To Editor






(Max. 8000 char.)

Search Companies





SEARCH

Leave your Comments


June 2018

Subscribe today and get the latest update on Textiles, Fashion, Apparel and so on.

news category


Related Categories:

Advanced Search