The DLA - Team

The Dienstleistung Lebensmittel Analytik GbR is a small team, which is managed by two shareholders Matthias Besler-Scharf and Gerhard Wichmann. We have three employees, Mrs. Lücke, Mrs. Klusmeier and Mrs. Scharf, who are supporting us.

Matthias Besler-Scharf, PhD

  • I am a food chemist (governmentally approved) and accomplished my PhD thesis at the University of Hamburg (Germany) in the department of food chemistry. My topic was in the area of allergen analytics among others with the aim to elucidate epitop structures of egg white allergens. Afterwards I published numerous allergen data collections with international co-authors in an online journal Internet Symposium on Food Allergens (

  • I was and I am involved in the development of detection methods by ELISA- and PCR-techniques as well as in studies of the allergenicity of foods e.g. in the framework of the EU-project REDALL (Reduced Allergenicity of Processed Foods containing Animal Allergens), in supporting the DIN-norm committee of food allergens or as an external advisor of the MAVO-project "LowAllergen" (Fraunhofer Institut).

  • From 2001 to 2014 I was quality management representative, deputy head of laboratory and approved expert for cross checks according to German food law in a commercial laboratory (LEFO-Institut, Ahrensburg). Besides being one of the managing directors (2007-2014) I was mainly judging the legatimacy of food supplements and dietetic foods (supplemental balanced diet) according to its composition and labeling.

  • Since 2003 I am doing safety assessments of cosmetic products, as early as 2009 according to the recommendations of the EU-regulation for cosmeticals (

Gerhard Wichmann, PhD

  • I was born in 1950 in Hamburg. In 1970 I finished my education as an electro mechanic and my graduation at an evening high school. Afterwards I studied at the Universitiy of Hamburg biology (biochemistry). Main points: applied botany, microbiology and metabolic influence of heavy metals (cadmium) on vegetables.

  • Since 1984 I was head of laboratory in a commercial laboratory (LEFO-INSTITUT, Ahrensburg), and from 1988 to 2006 managing director. Since 1987 I am sworn expert for food chemistry and contaminant measurement appointed by the Chamber of Industry and Commerce Industrie- und Handelskammer in Lübeck

  • Emphasis of my interest was the development of new methods (detection of radiated foods, detection of hazelnut in foods, quality evaluation of coffee and cocoa, ochratoxin A in house dust) and new products (cholesterol reduced cream and coffee whitener, "tropical chocolate") and supporting technological projects (Dominican Republic / improvement of cocoa quality; Poeple's Republic of China / quality control measures). Another important part was to compile scientific studies of foods (cystus - a traditional tea plant; wild garlic - a food or pharmaceutical?; fibre in nutrition; essentiality of sulfur compounds; studies of many ayurvedic and traditional chinese plants with respect to the legatimacy in the EU and the novel-food-discussion).

  • And besides that it should be mentioned the topic of "hygienie measures and consulting" in hotels and food companies (HACCP systems, education, hygien controls).

Commitment to social purposes, sustainability and the environment:

The owners and the whole DLA team are committed to social and non-profit purposes, sustainable management of resources and the promotion of environmentally friendly and/or organic agriculture and technologies! Where possible, we put these goals into practice. In particular, the following issues are self-evident for us:

  • DLA has been used recycled paper right from the start, and since 2016 has been converting the monthly announcements and since 2017 the evaluation reports as well to purely electronic dispatch.

  • For packaging of our materials, we use package tapes made of recycled plastic and use 100% used filling material.

  • DLA attaches great importance to suppliers of green electricity and gas with a high share of renewable energies.

  • DLA donates annually to non-profit institutions such as PLAN International or Aktion-Deutschland-Hilft (Refugee Aid).

Why DLA was founded:

DLA was founded in the year 2004 by Udo Kasel, Gerhard Wichmann and Matthias Besler. We all worked at that time as head of laboratory, managing director and quality manager in an accredited commercial laboratory. Among others our tasks were the analysis of foods, cosmetics and contact materials. Reason to start DLA at that time were the requirements mentioned by the auditors with respect to the quality assurance. They recommended the participation in a proficiency test for the determination of ethylene oxide / chloro ethylene.

Back then none of the PT providers offered this parameter. Therefore we decided to act. Our first two proficiency tests, conducted by Udo Kasel, were „aflatoxins in chillies“ and „ethylene oxide / chloroethylene in chillies“ with 14 participants from Germany each. More mycotoxins PTs (DON and OTA) as well as dietary fibre followed. In 2006 the first two allergen PTs and a GMO PT were conducted. Since then our program was growing continously and became international.

Nowadays we offer 50-75 PTs per year. We have nearly 400 customers from 38 countries. Our main topics are e.g. in the area of food allergens, mycotoxins and element determination. Furthermore we offer PTs for GMO determination and contaminants in foods and in the area of nutritionals and quality control of foods, food supplements and dietary products as well as cosmetics and contact materials. We are thankful for any suggestions and proposals. So we are offering the determination of allergens in alcoholic beverages like wine and beer in 2016.

Inspired by our experience with the PT materials and partly astonishing results we have recently published an article on the detectability of soya and gluten by ELISA and PCR methods.

DLA - Dienstleistung Lebensmittel Analytik GbR
Dr. Gerhard Wichmann & Dr. Matthias Besler-Scharf
Waldemar-Bonsels-Weg 170, 22926 Ahrensburg, Germany

Tel. +49-(0)4532-9183358 Mob. +49-(0)171-1954375 Fax. +49-(0)4102-9944976