Knowledge Management System Of Institute of process engineering,CAS
| Competitive annealing mediated isothermal amplification (CAMP) for rapid and simple detection of Listeria monocytogenes in milk | |
| Li, Wei5; Mao, Rui2; Yue, Xiqing1; Wu, Junrui1; Wu, Rina1; Qiao, Yu3; Peng, Qing3; Shi, Bo3; Luo, Yong4; Chen, Xu1; Du, Yuguang2 | |
| 2020-11-01 | |
| Source Publication | FOOD CONTROL
 |
| ISSN | 0956-7135 |
| Volume | 117Pages:7 |
| Abstract | Listeria monocytogenes (L. monocytogenes ) is widespread in nature and considered an important foodborne pathogen. And it can cause listeriosis, which can lead to miscarriage, neonatal death, septicemia and meningitis. Therefore, the appropriate detection methods are needed to effectively control and prevent this pathogenic bacterium. Competitive annealing mediated isothermal amplification (CAMP) is a novel nucleic acid-based detection technology that amplifies DNA with high sensitivity and specificity under isothermal conditions. The aim of this study was to develop a CAMP assay for rapid and simple detection of L. monocytogenes in milk. In this system, a pair of inner primers was designed to specifically target hlyA gene of L. monocytogenes. For further optimization, loop primers and outer primers were designed to accelerate CAMP reaction. Compared with conventional PCR method, the CAMP assay has the same specificity and higher sensitivity. All 8 strains of L. monocytogenes yielded positive results using the CAMP assay and showed no cross reaction with 26 tested non L. monocytogenes strains. The detection limit of the CAMP assay was 1.0 x 10(2) CFU/mL for pure bacterial, which was 10-fold more sensitive than PCR. Additionally, the CAMP method with the enrichment step could reliably detect L. monocytogenes in artificially contaminated milk samples at concentration as low as 1 CFU/mL. These results indicate the developed CAMP is a potential useful method for rapid detection of L. monocytogenes in milk samples. |
| Keyword | Competitive annealing mediated isothermal amplification L.monocytogenes Milk |
| DOI | 10.1016/j.foodcont.2020.107347 |
| Language | 英语 |
| WOS Keyword | REAL-TIME PCR ; MULTIPLEX PCR ; FOOD ; SALMONELLA ; STORAGE |
| Funding Project | National key RD project[2018YFD0501403] ; Youth Project of the Education Department of Liaoning Province, China[LSNQN201911] |
| WOS Research Area | Food Science & Technology |
| WOS Subject | Food Science & Technology |
| Funding Organization | National key RD project ; Youth Project of the Education Department of Liaoning Province, China |
| WOS ID | WOS:000541152600014 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/41177 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Chen, Xu; Du, Yuguang |
| Affiliation | 1.Shenyang Agr Univ, Food Sci Coll, Shenyang 110866, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 3.Chinese Acad Agr Sci, Feed Res Inst, Beijing 100081, Peoples R China 4.Dalian Univ Technol, Sch Pharmaceut Sci & Technol, Dalian 116024, Peoples R China 5.Shenyang Agr Univ, Dept Publicat, Shenyang 110866, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Wei,Mao, Rui,Yue, Xiqing,et al. Competitive annealing mediated isothermal amplification (CAMP) for rapid and simple detection of Listeria monocytogenes in milk[J]. FOOD CONTROL,2020,117:7. |
| APA | Li, Wei.,Mao, Rui.,Yue, Xiqing.,Wu, Junrui.,Wu, Rina.,...&Du, Yuguang.(2020).Competitive annealing mediated isothermal amplification (CAMP) for rapid and simple detection of Listeria monocytogenes in milk.FOOD CONTROL,117,7. |
| MLA | Li, Wei,et al."Competitive annealing mediated isothermal amplification (CAMP) for rapid and simple detection of Listeria monocytogenes in milk".FOOD CONTROL 117(2020):7. |
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