microbial-challenge-study

Microbial challenge study is used to simulate what happens to a product during processing, distribution and subsequent preparation and handing should it become contaminated, which is performed by inoculating selected microorganisms into a food to determine if the microorganisms are a potential health risk or spoilage risk.

According to the real situation of enterprises and product characteristics, Mérieux NutriSciences China Food Science Center simulates product storage condition rigorously and objectively. This experimental technique consists in inoculating a known concentration of a microorganism into a product and following its development through use of a specific protocol, such as the standard protocol published by the NACMCF.

Why do you need challenge study?

  • To determine whether certain spoilage or pathogenic microorganisms can grow in a particular food.
  • To study the effectiveness of the preservatives or determine whether there is a certain concentration of food preservative.
  • To ensure manufacturers comply with food safety regulations. Regulations requests manufacturers should carry out such research in certain foods, especially the packaging food and ready-to-eat food which include potential Listeria, Salmonella and other pathogenic microorganisms.

When do you need challenge study?

  • New storage conditions
  • New formulation or composition
  • To determine which preservative works best
  • New treatments

Our Challenge tests present the following benefits

  • Determine the pathogen or spoilage microorganism growth risk
  • Classification of products according to the pathogen growth risk
  • Evaluation of risks and determination of critical points and optimum microbiological safety intervals within the HACCP approach 
  • Determination of criteria for acceptable levels of pathogenic indicator organisms
  • Limit costs and time of experimental studies with better targeted analyses

Mérieux NutriSciences China

Hotline: 400-645-8088
E-mail: sales.china@mxns.cn


Lab(Shanghai)
No.3, 3576 Zhaolou Road, Pujiang Town, Minhang District, Shanghai, P.R.C.
Phone: +86 (21) 6496 7600


Lab (Beijing)
Room 32013, 32015 Zhongtai Tower, Shuangqing Road No.3, Haidian District, Beijing, P.R.C.
Phone: +86 (10) 8279 6441 / 6442


Lab (Qingdao)
No. 63, Shanghe Road, Qingdao, P.R.C.
Phone: +86 (532) 8381 6633


Lab (Ningbo)
C7 Buliding, No. 299 Guanghua RD, High-Tech Park, Ningbo, P.R.C.
Phone. +86 (574) 2886 0788


Lab (Chengdu)
No.1, Building B1, Jingkai Technology Incubator Park, 1666 Chenglong Avenue, Chengdu, Sichuan Province, P.R.C.
Phone. +86 (28) 8789 6611


Lab (Weinan)
No.7 Building, China Jiaosu City, Weinan Economic and technological development zone, Weinan, Shaanxi Province, P.R.C.
Phone. +86 (29) 8149 3698


Da Lian Office
Room B302, Crystal SOHO, 16 Harbin Road, Jinpu New District, Dalian, P.R.C.
Phone. 1884 2605 953


Guang Zhou Office
5F, 1 Linhe West Road, Tianhe District, Guangzhou, P.R.C.
Phone. 1317 8856 551


Xi'An Office
F508 Gazelle Valley, 69 Jinye Road, Yanta District, Xi'an, P.R.C.
Phone. 1819 1356 725


Chong Qing Office
5-19, Floor 5, Unit 7, Building 15, No.18 Food City Avenue (Chongqing Advertising Industry Park), Yubei District, Chongqing, P.R.C.
Phone. 1858 0736 930

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Company News
Today is the International Day of Women and Girls in Science. On this occasion, we asked some inspiring colleagues around the world to share what they love about their work, a piece of advic...
July 13th, 2020
New method/service
The food industry, in general, is important in any country, not only providing food to the public but contributing to the economy. All organisations throughout the s...