24. July 2019

Biolytix closed on 1. August 2019

Biolytix AG will be closed on Thursday, 1. August 2019, due to the Swiss national holiday. We will be there for you again on Friday, 2. August 2019 according to our opening hours.

Thank you very much for your understanding.

21. May 2019

Opening hours - Ascension/Pentecost 2019

Due to the Ascension Day and Pentecost holidays, Biolytix AG will be closed on the following days:

  • Thursday 30 May 2019 – Ascension
  • Friday 31 May 2019 – Bridge day
  • Monday 10 June 2019 – Pentecost Monday

For your planning and logistics we therefore ask you to observe the following information:

Water and food samples – Microbiology
Please note that in week 22 (before Ascension) we can only take water and food samples until Wednesday, 29 May 2019 at 12:00 noon for the corresponding analyses.

Sprout samples – microbiology
Sprout samples must be delivered for appropriate microbiological analysis by 12:00 noon on Monday 27 May 2019.

Express analyses for Salmonella
Samples must be delivered by noon on Monday 27 May 2019.


4. March 2019

Opening hours during Easter holiday 2019

Due to the Easter holidays, Biolytix AG will be closed on Friday, April 19, 2019 and Monday, April 22, 2019.

For your planning and logistics we therefore ask you to observe the following information:

Water and food samples – Microbiology
Please note that we only accept drinking water and Legionella samples in week 16 (before Easter) until Thursday 18 April 2019 at 12:00 noon for the corresponding analyses.

Sprout samples – Microbiology
Sprouts must be delivered by Tuesday 16 April 2019 for appropriate microbiological analyses.

Express analyses for salmonella
Samples must be delivered for the final evaluation before 19 April 2019 (Good Friday) by Wednesday, 17 April 2019 at noon.

From Tuesday 23 April 2019 we will be back with normal opening hours!

Biolytix will remain closed on the following days:
– Friday, 19. April 2019 Good Friday
– Monday, 22. April 2019 Easter Monday
– Wednesday, 1. May 2019 Labour Day
– Thursday, 30. May 2019 Ascension
– Friday, 31. May 2019 Bridge Day – Biolytix closed
– Monday, 10. June 2019 Whit Monday

Thank you very much for your understanding, we wish you a happy Easter!

7. December 2018

Death of Board Member Prof. Dr. Oreste Ghisalba

The management and board of directors of Biolytix have the painful duty to inform that Prof. Dr. Oreste Ghisalba, founding member of Biolytix, board member and longtime friend, unexpectedly died on 4. December 2018 at the age of 72.

The entire Biolytix team express their sincere condolences to Oreste’s wife and family.

With Oreste Ghisalba we lost a good friend and competent colleagues. His many years of experience and his network have shaped the Biolytix from the beginning and were essential for the success of the company.

The board of directors will announce Oreste’s replacement in due course.

6. December 2018

Biolytix opening hours over Christmas and New Year 2018

Our laboratories are open on Christmas and New Year only on certain days. Please note the adjusted data for your planning and logistics:

Biolytix will be closed on the following dates:

  • Christmas: 24. – 26. December 2018
  • New Year’s Eve:  31. December 2018
  • New Year: 1. January 2019

Water and Food Samples – Microbiology

Please note that during week 51 (before Christmas), we will only accept drinking water and food samples for analysis until 12:00 pm on Tuesday, 18. December 2018.


  • Legionella samples can be brought in up until 12:00 pm on Friday, 21. December 2018
  • Cronobacter sakazakii, yeast and mold samples can only be accepted until Monday, 17. December 2018

Express for GMO and allergen samples

For express and next-day samples, we can only guarantee a result before Christmas if the samples arrive in our laboratory in Witterswil until and including Wednesday, 19. December 2018!

From Wednesday 2. January 2019 we are back with normal opening hours for you!

Thank you for your understanding, we wish you happy holidays!

22. October 2018

Biolytix closed due to company event

Important Notice

Our laboratory will be closed on Friday, 26.10.2018 due to a company event. Consequently, no samples can be personally accepted on that day and no analysis reports can be transmitted. We ask you to deliver microbiology samples no later than Thursday, October 25, 2018 at 15:00. We will be back for you on Monday 29.10.2018.

Contact us with questions!

Contact us!

18. October 2018

Accumulation of listeriosis cases in Switzerland


– Federal Office of Public Health informs: Unexplained accumulation of listeriosis cases
– Listeriosis is caused by the bacterium Listeria monocytogenes
– Biolytix routinely analyzes foods for Listeria monocytogenes

Witterswil, 18 October 2018 – Since mid-2018, the weekly statistics of the Swiss Federal Office of Public Health have shown an unusual increase in listeriosis cases. The bacterium Listeria monocytogenes is found almost everywhere in the environment and can lead to listeriosis in humans.

Transmission takes place through the consumption of contaminated food. Listeriosis is a rare infectious disease, but it can have severe consequences in immunocompromised individuals. In women who become infected with Listeria during pregnancy, it can also lead to infection of the child.

The sources of infection are animal foods such as meat, sausages, fish, raw milk and dairy products (e.g., soft cheeses), but also vegetable foods (e.g., precut salads or fruits).

Biolytix routinely analyzes various foods for Listeria monocytogenes and can offer qualitative and quantitative test methods.

The result is available within 3-4 days. If interested, send us your food samples using the order form attached below.

Detection of Listeria monocytogenes

real-time PCR, after enrichment acc. EN / ISO 11290-1, qualitative
Duration: 3-4 days
Analysis code: Lmo

Germ count according to EN / ISO 11290-2, quantitative
Duration: 3-4 days
Analysis code: Lmo quant

(Source in german: BAG Bulletin 42/18: https://www.bag.admin.ch/bag/de/home/das-bag/aktuell/news/bag-bulletin.html)

Other microorganism analyses.

1. August 2018

1. August - National Holiday

national holiday

The Biolytix AG remains closed on Wednesday, August 1, 2018, due to the national holiday. We are happy to be serve you again from Thursday, 2 August 2018 according to the opening times.

Thank you for understanding.

2. July 2018

Biolytix AG celebrates its 20th anniversary with a new logo, new website and new projects

– Anniversary celebration in the Technology Center Witterswil with over 100 invited guests
– New logo, new website, new customer portal – were unveiled and presented at the anniversary
– Speeches by Christoph Keigel (President of the Board – Biolytix AG), Dr. Remo Ankli (Kanton Solothurn Governing Council) and Adrian Härri (Founder and CEO Biolytix AG).

Witterswil, 2 July 2018 – Biolytix AG celebrated its 20th anniversary at the Technology Center Witterswil on June 29, 2018 with a big party. The service laboratory for molecular and microbiological analyzes has made a name for itself nationally and internationally over the past two decades and was able to thank over 100 international invited guests for their trust and loyalty.

What began twenty years ago with two employees and an idea is today a company with over 20 employees. In order to reflect the innovative progress of recent years in the appearance, Biolytix unveiled their new brand at the festival in front of gathered audience.

«The new appearance of Biolytix transports the old logo into a new and digital world. It stands for the digitization and modernization of the company, “says Adrian Härri, CEO and founder of Biolytix.

At the same time, the Biolytix website was re-launched with the new brand and a new customer portal was announced for the customers. The new customer portal will be presented to selected customers for the first time in the third quarter of 2018 and should significantly facilitate and improve data transfer and communication.

Christoph Keigel, President of the Board of Biolytix AG, highlighted in his address various bright spots of the last 20 years of Biolytix and thanked the management and the employees.

Dr. Remo Ankli, Kanton Solothurn governing councilor for education and culture, was able to underline the importance of the SME role in the Swiss economy.

Media requests to:

Marco Ferraro
+41 61 725 20 70

13. June 2018

Ethoxyquin in Fish Feed

Ethoxyquin in Fisch

Ethoxyquin is a Antioxidant that delays the oxidation of lipophilic Vitamins (Carotine, Xanthophylle, Vitamin A und Vitamin E). It was widely used for the preservation of fishmeal (especially feed for fish farms). Prior to its ban as a plant protection product, ethoxyquin was also used as a post-harvest treatment against tan in apples and pears.

In June 2017 the European commission has formally suspended the authorization for the antioxidant ethoxyquin (EQ) as a feed additive with the publication of Regulation (EU) 2017/962.

Biolytix can help check the Ethoxyquin values in fish feed and fish meat. The detection limits are extremely sensitive (µg/kg = parts per billion).

Detection Limits

Ethoxyquin + Ethoxyquin-Dimer: 2 µg/kg + 5 µg/kg
BHA (Butylhydroxyanisol / E320):  10 µg/kg
BHT (Butylhydroxytoluol / E321):  10 µg/kg

(Source: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%3AOJ.L_.2017.145.01.0013.01.ENG)

Contact us today to get a quote!

24. May 2018

Arsenic found in soil of municipality of Liesberg

Arsen Analyse

According to a newspaper article in the Basellandschaftliche Zeitung, arsenic was found in the soil in the municipality of Liesberg.

The authorities warn against eating and growing vegetables in the affected areas.

“Unfortunately, it often happens that we find harmful substances in everyday life.” says CEO Adrian Härri, “We can provide certainty with our analyzes.”

We support in soil analysis. If you want to analyze your soil (for example, earth, sand, mud, ..), or even vegetables or fruits, send us 10 gram. You will receive the result in 2-5 working days. The cost is CHF 60 (excluding VAT).

Offer is valid until the end of June 2018.

(Source: https://www.bzbasel.ch/basel/baselbiet/arsen-in-boeden-von-liesberg-verzicht-auf-gemueseanbau-empfohlen-132600705)

Contact us today!

26. April 2018

Spring is here, time to tidy the allotment garden


Spring is here and summer is around the corner. Time to clean up the allotment garden and sow the first salad and carrots.

However, caution should be exercised when applying pesticides. In Switzerland, up to 200 tonnes of pesticides are used annually for private purposes.

“We have often measured elevated pesticide levels in regional gardens.” says CEO Adrian Härri, “Unfortunately, hobby gardeners are often unaware of how many pollutants are in their soil.”

Biolytix analyzes the vegetables and soil for pesticides and heavy metals (lead, cadmium, copper and zinc) to make sure that the hard-working vegetables can be enjoyed without worry.

(Source in German: www.zeit.de/2018/16/schrebergaerten-schweiz-umweltschutz)

Contact us today!

13. April 2018

Dentalytix - Now part of Biolytix

Dentalytix - Now part of Biolytix

We are pleased to announce that on 1 April 2018 the Dentalytix business of Prochema AG, Allschwil, was handed over to Biolytix AG.

As a regional ISO17025 accredited service laboratory, Biolytix has established itself in the field of molecular and microbiology analyses in Switzerland over the last 20 years. Especially in hygiene control and monitoring, Biolytix has a lot of experience.

“Dentalytix was professionally managed and built by Prochema. We are pleased to continue the good work and expand the range of services for our customers” said Adrian Härri, CEO.

In the future, we look forward to offering hygiene monitoring in dental surgeries under the Dentalytix name. We not only offer the monitoring of surfaces and equipment hygiene, but also test the water quality and the hygiene status of the staff’s hands.

22. March 2018

Easter and Pentecost - Opening Hours

Due to the Easter holidays, Biolytix AG will be closed on Friday, March 30, 2018 and on Monday, April 2, 2018.

For your planning and logistics we therefore ask you to observe the following instructions:

Water and Food Samples – Microbiology

Please note that during the week 13 (before Easter), we will only accept drinking water and Legionella samples for analysis until Thursday, March 29, 2018 at 12:00.

Sprout samples – microbiology

Sprouts must be delivered for appropriate microbiological analyzes by Tuesday, March 27, 2018.

For Express and Next Day samples please be advised that the samples need to be in our premises in Witterswil by Tuesday 27. March 2018 morning!

Biolytix will remain closed on the following dates:

  • 1 May 2018 Labor Day
  • 10 May 2018 Ascension
  • 20 May 2018 Pentecost

7. December 2017

Opening hours on 15.12.17 - works outing!

Please note that due to the annual works outing Biolytix AG will be closed on Friday December 15th, 2017.

Thank you very much for your understanding.

7. December 2017

"Traces of poison in organic salmon" Biolytix Quoted in Tages-Anzeiger

Adrian Härri, head of Biolytix, a company that conducts molecular biological and microbiological analyzes, repeatedly proves the poison in biofish.

“We have never had a sample that did not contain ethoxyquin,” says Härri. Anyone who thinks that the organic salmon is free of pesticides is wrong. “In fact, consumers are misled with the organic label,” says Härri.

Read full article

24. July 2017

Opening Hours - Swiss National Day

Biolytix AG will remain closed on Tuesday 1. August 2017 in observance of Swiss National Day.

Please consider this closures for your sample dispatch.

Thank you very much for your understanding.

11. May 2017

GMO petunia on the European market!

Evira (Finnish food safety authority) has published on their web page on April 27th, 2017, that genetic engineering changes could be detected in petunia. These were petunias with orange-colored flowers which are merchandised in Finland under the trade names Pegasus Orange Morn, Pegasus Orange, Pegasus Table Orange, Potunia Plus Papaya, Go!Tunia Orange, Bonnie Orange, Sanguna Patio Salmon and Sanguna Salmon.

Biolytix AG is now able to carry out appropriate analyses for testing for GMO petunias in its ISO 17025 accredited laboratory. All it takes is 10 g of plant material. In addition to plant parts, seed can also be examined to determine whether the corresponding GMO markers are detectable. The analysis is carried out in 2-5 working days for 162 CHF. Express analyses are possible upon agreement within 24 hours or within 8 hours as a super express analysis.

Offer is valid until end of December 2017

Contact us with Questions.

14. January 2016

Bacteria: Biolytix in SRF 1 "Einstein"

Einstein Biolytix Video

On 14 January 2016 Biolytix was invited to be part of the television program Einstein as a bacteria expert. (Biolytix appearance at 04:34)

Go to the Video

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