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Ulfadillah SA, Chang SH. Antibacterial effects of various molecular weight chitosans against Alicyclobacillus acidoterrestris in orange juice. Int J Biol Macromol 2024; 262:130214. [PMID: 38367781 DOI: 10.1016/j.ijbiomac.2024.130214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/27/2024] [Accepted: 02/03/2024] [Indexed: 02/19/2024]
Abstract
Alicyclobacillus acidoterrestris has been gaining attention due to its unique thermo-acidophilic properties and being associated with the deterioration of pasteurized beverages. The objective of this study was to evaluate the antibacterial activity of chitosan with various molecular weights (MWs) (164, 85, 29.2, and 7.1 kDa) and concentrations (0-100 μg/mL) against A. acidoterrestris and its effect on guaiacol production. Various chitosan MWs were co-incubated for 7 days, and the bacterial growth, guaiacol, and vanillic acid contents during storage were determined. The chitosans performed antibacterial effects against A. acidoterrestris. Further, 164 kDa chitosan showed excellent results in controlling the growth and guaiacol formation in A. acidoterrestris. These findings demonstrated the efficacy of chitosan antibacterial activity against A. acidoterrestris and mitigating the guaiacol formation. Chitosan's antibacterial properties are attributed to the elimination of cells and suppression of guaiacol production. This study introduces a new approach for reducing A. acidoterrestris contamination in fruit juices, with potential product quality and safety advantages.
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Affiliation(s)
- Siti Ayu Ulfadillah
- Institute of Food Safety and Risk Management, National Taiwan Ocean University, Keelung, Taiwan, ROC
| | - Shun-Hsien Chang
- Institute of Food Safety and Risk Management, National Taiwan Ocean University, Keelung, Taiwan, ROC; Center for Marine Bioenvironment and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan, ROC.
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Sourri P, Tassou CC, Nychas GJE, Panagou EZ. Fruit Juice Spoilage by Alicyclobacillus: Detection and Control Methods—A Comprehensive Review. Foods 2022; 11:foods11050747. [PMID: 35267380 PMCID: PMC8909780 DOI: 10.3390/foods11050747] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/22/2022] [Accepted: 03/02/2022] [Indexed: 12/03/2022] Open
Abstract
Fruit juices have an important place in humans’ healthy diet. They are considered to be shelf stable products due to their low pH that prevents the growth of most bacteria. However thermo-acidophilic endospore forming bacteria of the genus Alicyclobacillus have the potential to cause spoilage of commercially pasteurized fruit juices. The flat sour type spoilage, with absence of gas production but presence of chemical spoilage compounds (mostly guaiacol) and the ability of Alicyclobacillus spores to survive after pasteurization and germinate under favorable conditions make them a major concern for the fruit juice industry worldwide. Their special characteristics and presence in the fruit juice industry has resulted in the development of many isolation and identification methods based on cell detection (plating methods, ELISA, flow cytometry), nucleic acid analysis (PCR, RAPD-PCR, ERIC-PCR, DGGE-PCR, RT-PCR, RFLP-PCR, IMS-PCR, qPCR, and 16S rRNA sequencing) and measurement of their metabolites (HPLC, GC, GC-MS, GC-O, GC-SPME, Electronic nose, and FTIR). Early detection is a big challenge that can reduce economic loss in the industry while the development of control methods targeting the inactivation of Alicyclobacillus is of paramount importance as well. This review includes a discussion of the various chemical (oxidants, natural compounds of microbial, animal and plant origin), physical (thermal pasteurization), and non-thermal (High Hydrostatic Pressure, High Pressure Homogenization, ultrasound, microwaves, UV-C light, irradiation, ohmic heating and Pulse Electric Field) treatments to control Alicyclobacillus growth in order to ensure the quality and the extended shelf life of fruit juices.
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Affiliation(s)
- Patra Sourri
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization DIMITRA, Sofokli Venizelou 1, 14123 Lycovrissi, Greece;
| | - Chrysoula C. Tassou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization DIMITRA, Sofokli Venizelou 1, 14123 Lycovrissi, Greece;
- Correspondence: (C.C.T.); (E.Z.P.)
| | - George-John E. Nychas
- Laboratory of Microbiology and Biotechnology of Foods, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece;
| | - Efstathios Z. Panagou
- Laboratory of Microbiology and Biotechnology of Foods, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece;
- Correspondence: (C.C.T.); (E.Z.P.)
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3
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Li H, Chen H, Liu B, Cai R, Jiang N, Yue T, Wang Z. Establishment of quantitative PCR assays for the rapid detection of Alicyclobacillus spp. that can produce guaiacol in apple juice. Int J Food Microbiol 2021; 360:109329. [PMID: 34275638 DOI: 10.1016/j.ijfoodmicro.2021.109329] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 11/16/2022]
Abstract
Alicyclobacillus species are one of the most significant qualities and safety factors in fruit juice and beverages. The growth of some Alicyclobacillus genus can lead to sour spoilage with the off-odor of medicinal, phenolic or antiseptic, which is mainly caused by the metabolites of guaiacol, dihalophenol and dibromophenol. Especially, guaiacol is regarded as the predominant taint in Alicyclobacillus-spoiled products. In this study, quantitative PCR (qPCR) assays were proposed for the detection of A. acidoterrestris, A. acidiphilus, A. cycloheptanicus and A. herbarius that can produce guaiacol in fruit juice. The 16S rDNA sequences of these four kinds of Alicyclobacillus species were identified and the primers suitable for the qPCR assay were obtained. The sensitivity and specificity of the established methods were evaluated. The results indicated that the developed qPCR approaches were distinctive enough to detect A. acidoterrestris, A. acidiphilus, A. cycloheptanicus and A. herbarius with the sensitivity of 2.6 × 102 CFU/mL, 74 CFU/mL, 2.8 × 102 CFU/mL and 3.1 × 102 CFU/mL, respectively. The correlation coefficients of standard curves were from 0.9807 to 0.9985. Based on the pretreatment of filtration-culture, these bacteria with the initial concentration of 10-1 CFU/mL, 100 CFU/mL and 101 CFU/mL can be effectively detected in 2-20 h, which depended on the target bacteria and their initial concentration. The results displayed that the proposed procedures were effective for the rapid detection of Alicyclobacillus species that can produce guaiacol in apple juice.
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Affiliation(s)
- Hui Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Hong Chen
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Bin Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Rui Cai
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Nan Jiang
- Rushan R & D Center of SDIC Zhonglu Fruit Juice Co., Ltd, Weihai 264500, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China.
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4
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Liu J, Xie G, Xiong Q, Liang T, Xu H. Sensitive dual readout assays based on rolling circle amplification for fluorescent and colorimetric detection of Cronobacter spp. in powdered infant formula. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107840] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Shi Y, Zhou L, Qu X, Yue T, Yuan Y. Targeting the cell wall: Preparation of monoclonal antibody for accurate identification of Alicyclobacillus acidoterrestris in apple juice. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Farag MA, Mesak MA, Saied DB, Ezzelarab NM. Uncovering the dormant food hazards, a review of foodborne microbial spores' detection and inactivation methods with emphasis on their application in the food industry. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2020.10.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Wang Z, Yue T, Yuan Y, Zhang Y, Gao Z, Cai R. Targeting the vanillic acid decarboxylase gene for Alicyclobacillus acidoterrestris quantification and guaiacol assessment in apple juices using real time PCR. Int J Food Microbiol 2020; 338:109006. [PMID: 33302194 DOI: 10.1016/j.ijfoodmicro.2020.109006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/31/2020] [Accepted: 11/27/2020] [Indexed: 11/19/2022]
Abstract
Alicyclobacillus spp. has recently received much attention due to its implication in the spoilage of pasteurized fruit juices, which is characterized by the formation of guaiacol. Previous researches indicate that not all Alicyclobacillus spp. are able to produce guaiacol. The aim of this study was to identify possible differences in the vanillic acid decarboxylase gene involved in guaiacol biosynthesis and then develop specific detection methods for guaiacol producing Alicyclobacillus. Agarose gel electrophoresis results showed that the partial vdcC gene was present in all the guaiacol producing Alicyclobacillus, but absent in non-guaicaol producing strains apart from A. fastidiosus DSM 17978. On the basis of the vdcC gene sequence, a primer pair specific to A. acidoterrestris was designed; then a SYBR Green I real time PCR was established for the direct quantification of A. acidoterrestris in apple juice, and the detection limit was 2.6 × 101 CFU/mL. The developed real time PCR system was used to detect A. acidoterrestris in 36 artificially contaminated apple juice samples and guaiacol production in the sample was also analyzed by GC-MS. The Gompertz model was employed to describe the relationship between A. acidoterrestris cell concentration and guaiacol content, and the value of R2 was 0.854. This work provides an alternative to conventional methods of guaiacol quantification and A. acidoterrestris detection and could be very useful for the early recognition of A. acidoterrestris contamination in fruit juices.
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Affiliation(s)
- Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China; National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi 712100, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China; National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi 712100, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China; National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi 712100, China
| | - Yanchen Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China; National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi 712100, China
| | - Zhenpeng Gao
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China; National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi 712100, China
| | - Rui Cai
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China; National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi 712100, China.
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8
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Yuan N, Zhang Y, Xu H, Zhou Z, Lu X, Chen T, Yang Q, Tan J, Zhang W. Development of the Saltatory Rolling Circle Amplification Assay for Rapid and Visual Detection of Alicyclobacillus acidoterrestris in Apple Juice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:4538-4545. [PMID: 32208687 DOI: 10.1021/acs.jafc.0c00061] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A novel nucleic acid isothermal amplification method based on saltatory rolling circle amplification (SRCA) for rapid and visual detection of Alicyclobacillus acidoterrestris in apple juice was established. Fourteen A. acidoterrestris strains and 44 non-A. acidoterrestris strains were used to confirm the specificity. The sensitivity of SRCA was 4.5 × 101 CFU/mL by observing the white precipitate with the naked eye, while it was 4.5 × 100 CFU/mL by fluorescence visualization. The detection limit of SRCA in artificially inoculated apple juice was 7.1 × 101 and 7.1 × 100 CFU/mL via visualization of the white precipitate and fluorescence, respectively. Compared with the traditional PCR method, SRCA exhibited at least a 100-fold higher sensitivity and 100-fold lower detection limit. Seventy samples were investigated for A. acidoterrestris contamination, and the results showed 100% sensitivity, 97.01% specificity, and 97.14% accuracy compared with those by the conventional microbiological cultivation method. Overall, this method is a potentially useful tool for visual and rapid detection of A. acidoterrestris.
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Affiliation(s)
- Ning Yuan
- College of Science and Technology, Hebei Agricultural University, Cangzhou 061100, Hebei, China
| | - Yunzhe Zhang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Hui Xu
- College of Science and Technology, Hebei Agricultural University, Cangzhou 061100, Hebei, China
| | - Zhijun Zhou
- Teaching experiment center, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Xin Lu
- College of Science and Technology, Hebei Agricultural University, Cangzhou 061100, Hebei, China
| | - Tingting Chen
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Qian Yang
- College of Science and Technology, Hebei Agricultural University, Cangzhou 061100, Hebei, China
| | - Jianxin Tan
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Wei Zhang
- College of Science and Technology, Hebei Agricultural University, Cangzhou 061100, Hebei, China
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
- College of Life Sciences, Hebei Agricultural University, Baoding 071001, Hebei, China
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Zhang J, Huang J, He F. The construction of Mycobacterium tuberculosis 16S rDNA MSPQC sensor based on Exonuclease III-assisted cyclic signal amplification. Biosens Bioelectron 2019; 138:111322. [PMID: 31112916 DOI: 10.1016/j.bios.2019.111322] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/05/2019] [Accepted: 05/12/2019] [Indexed: 12/27/2022]
Abstract
Tuberculosis caused by Mycobacterium tuberculosis (M. tuberculosis) remains one of the most serious infectious diseases all over the world. The key to reduce the spread and mortality rate of tuberculosis is to develop faster and more sensitive approaches for detection of M. tuberculosis. However, current detection methods can not meet the requirements of rapid clinical M. tuberculosis detection in terms of detection time. Herein, a new 16S rDNA multichannel series piezoelectric quartz crystal (MSPQC) sensor based on Exonuclease III (Exo III)-aided target recycling has been developed for rapid detection of M. tuberculosis. The specific 16S rDNA fragment of M. tuberculosis was used as biomarker, DNA capture probes complementary to the biomarker were designed and modified on the surface of AuNPs. The Exo III which could recognise hybrid duplexes and selectively digest DNA capture probe was used to assist digestion cycle by digesting DNA capture probe and releasing the intact target fragment. After all DNA probes loading on the surface of AuNPs were removed, the surface of AuNPs was exposed and conductive connection was formed between the nanogap network electrode by self-catalytic growth of exposed AuNPs in the glucose and HAuCl4 solution. This resulted in sensitive response of M. tuberculosis sensor and M. tuberculosis was detected by recording this response. The limit of detection (LOD) of the method was 20 CFU/mL and the detection time was less than 3 h. It was expected to be widely used in detection methods of M. tuberculosis.
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Affiliation(s)
- Jialin Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Ji Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Fengjiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China.
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Osopale BA, Adewumi GA, Witthuhn RC, Kuloyo OO, Oguntoyinbo FA. A review of innovative techniques for rapid detection and enrichment of Alicyclobacillus during industrial processing of fruit juices and concentrates. Food Control 2019. [DOI: 10.1016/j.foodcont.2018.12.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Synthesis of multifunctional fluorescent magnetic nanoparticles for the detection of Alicyclobacillus spp. in apple juice. Food Res Int 2018; 114:104-113. [DOI: 10.1016/j.foodres.2018.07.065] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 06/28/2018] [Accepted: 07/31/2018] [Indexed: 11/24/2022]
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12
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Rapid detection of Escherichia coli based on 16S rDNA nanogap network electrochemical biosensor. Biosens Bioelectron 2018; 118:9-15. [DOI: 10.1016/j.bios.2018.07.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 07/15/2018] [Accepted: 07/17/2018] [Indexed: 11/18/2022]
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13
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Zhang G, Zhu C, Huang Y, Yan J, Chen A. A Lateral Flow Strip Based Aptasensor for Detection of Ochratoxin A in Corn Samples. Molecules 2018; 23:molecules23020291. [PMID: 29385022 PMCID: PMC6017962 DOI: 10.3390/molecules23020291] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/11/2018] [Accepted: 01/15/2018] [Indexed: 12/17/2022] Open
Abstract
Ochratoxin A (OTA) is a mycotoxin identified as a contaminant in grains and wine throughout the world, and convenient, rapid and sensitive detection methods for OTA have been a long-felt need for food safety monitoring. Herein, we presented a new competitive format based lateral flow strip fluorescent aptasensor for one-step determination of OTA in corn samples. Briefly, biotin-cDNA was immobilized on the surface of a nitrocellulose filter on the test line. Without OTA, Cy5-labeled aptamer combined with complementary strands formed a stable double helix. In the presence of OTA, however, the Cy5-aptamer/OTA complexes were generated, and therefore less free aptamer was captured in the test zone, leading to an obvious decrease in fluorescent signals on the test line. The test strip showed an excellent linear relationship in the range from 1 ng·mL−1 to 1000 ng·mL−1 with the LOD of 0.40 ng·mL−1, IC15 value of 3.46 ng·mL−1 and recoveries from 96.4% to 104.67% in spiked corn samples. Thus, the strip sensor developed in this study is an acceptable alternative for rapid detection of the OTA level in grain samples.
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Affiliation(s)
- Guilan Zhang
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Chao Zhu
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Yafei Huang
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
- College of Food Science and Technology, Hainan University, Haikou 570228, China.
| | - Jiao Yan
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
- College of Food Science and Technology, Hainan University, Haikou 570228, China.
| | - Ailiang Chen
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Abstract
Aptamer-based trapping techniques are in general suitable to replace common antibody-based enrichment approaches. A time-consuming isolation or clean-up is often necessary during sample preparation, e.g. for the detection of spores. For the development of bioanalytical routine approaches, aptamers with a high affinity to B. cereus spores were applied for the establishment and validation of an aptamer-based trapping technique in milk with fat contents between 0.3 and 3.5%. Thereby, enrichment factors of up to sixfold were achieved. The combination of an aptamer-based enrichment by magnetic separation and the subsequent specific real-time PCR detection represents a reliable and rapid detection system.
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Fischer C, Wessels H, Paschke-Kratzin A, Fischer M. Aptamers: Universal capture units for lateral flow applications. Anal Biochem 2017; 522:53-60. [PMID: 28111303 DOI: 10.1016/j.ab.2017.01.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 01/11/2017] [Accepted: 01/18/2017] [Indexed: 01/07/2023]
Abstract
The present work demonstrates the implementation of aptamers as capture molecules for a wide range of target classes in lateral flow assay applications. The targets were chosen in order to cover a wide range of target classes (small sized - metabolite, medium sized - protein, and large sized - whole cell/spore). For each target class one target molecule was selected as representative and appropriate aptamers were used for lateral flow assay development. The work points out that the implementation of aptamers as capture molecules in a universal lateral flow test platform was successful independent form target size. Furthermore, the limit of detection for p-aminohippuric acid in urine (200 ppm), lysozyme in white wine (20 ppm), and Alicyclobacillus spores in buffered orange juice (>8 CFU/mL) were determined using aptamers as capture molecules. The whole approach is considered as a proof of concept, regarding the ability of aptamers as an alternative to antibodies (in conjunction with directive 2010/63/EU on the protection of animals used for scientific purposes) in lateral flow applications.
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Affiliation(s)
- Christin Fischer
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Hauke Wessels
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Angelika Paschke-Kratzin
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Markus Fischer
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
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Fischer C, Kallinich C, Klockmann S, Schrader J, Fischer M. Automated Enrichment of Sulfanilamide in Milk Matrices by Utilization of Aptamer-Linked Magnetic Particles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:9246-9252. [PMID: 27933990 DOI: 10.1021/acs.jafc.6b04435] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The present work demonstrates the first automated enrichment approach for antibiotics in milk using specific DNA aptamers. First, aptamers toward the antibiotic sulfanilamide were selected and characterized regarding their dissociation constants and specificity toward relevant antibiotics via fluorescence assay and LC-MS/MS detection. The performed enrichment was automated using the KingFisherDuo and compared to a manual approach. Verifying the functionality, trapping was realized in different milk matrices: (i) 0.3% fat milk, (ii) 1.5% fat milk, (iii) 3.5% fat milk, and (iv) 0.3% fat cocoa milk drink. Enrichment factors up to 8-fold could be achieved. Furthermore, it could be shown that novel implementation of a magnetic separator increases the reproducibility and reduces the hands-on time from approximately half a day to 30 min.
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Affiliation(s)
- Christin Fischer
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Constanze Kallinich
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Sven Klockmann
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Jil Schrader
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Markus Fischer
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
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17
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Mast S, Dietrich R, Didier A, Märtlbauer E. Development of a Polyclonal Antibody-Based Sandwich Enzyme-Linked Immunosorbent Assay for the Detection of Spores of Alicyclobacillus acidoterrestris in Various Fruit Juices. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:497-504. [PMID: 26653108 DOI: 10.1021/acs.jafc.5b03841] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A polyclonal rabbit antibody-based sandwich ELISA for the rapid and specific detection of spores of Alicyclobacillus acidoterrestris was established. The reactivity of the antisera with spores was confirmed by immunofluorescence. For a thorough evaluation of the ELISA, 61 strains and isolates of Alicyclobacillus spp. were characterized regarding their guaiacol production ability and genetic variability. The ELISA was highly sensitive, the detection limits were isolate-dependent and ranged from 2.1 × 10(3) - 3.8 × 10(4) spores/mL, except for one isolate, for which a slightly lower sensitivity (5 × 10(5) spores/mL) was observed. Inclusivity tests revealed that the ELISA reacts with all tested A. acidoterrestris, while no cross-reactions with spores of 30 strains of Bacillus spp. and Clostridium spp. were observed. Further on, the assay applicability was tested with orange, apple (clear and unfiltered), tomato, pink grapefruit, pear, and white grape juices. Juices were inoculated with 1 or 10 spores/mL of A. acidoterrestris. After enrichment for 48 h, the established ELISA enabled the reliable and reproducible detection of contaminated samples. The enriched samples could be applied directly to the assay, underlining the robustness of the developed ELISA method.
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Affiliation(s)
- Sophia Mast
- Department of Veterinary Sciences, Faculty of Veterinary Medicine, Ludwig-Maximilians-Universität München , Schönleutnerstr. 8, 85764 Oberschleißheim, Germany
| | - Richard Dietrich
- Department of Veterinary Sciences, Faculty of Veterinary Medicine, Ludwig-Maximilians-Universität München , Schönleutnerstr. 8, 85764 Oberschleißheim, Germany
| | - Andrea Didier
- Department of Veterinary Sciences, Faculty of Veterinary Medicine, Ludwig-Maximilians-Universität München , Schönleutnerstr. 8, 85764 Oberschleißheim, Germany
| | - Erwin Märtlbauer
- Department of Veterinary Sciences, Faculty of Veterinary Medicine, Ludwig-Maximilians-Universität München , Schönleutnerstr. 8, 85764 Oberschleißheim, Germany
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Cai R, Yuan Y, Wang Z, Guo C, Liu B, Liu L, Wang Y, Yue T. Precursors and metabolic pathway for guaiacol production by Alicyclobacillus acidoterrestris. Int J Food Microbiol 2015; 214:48-53. [DOI: 10.1016/j.ijfoodmicro.2015.07.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 07/12/2015] [Accepted: 07/23/2015] [Indexed: 10/23/2022]
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Ciuffreda E, Bevilacqua A, Sinigaglia M, Corbo MR. Alicyclobacillus spp.: New Insights on Ecology and Preserving Food Quality through New Approaches. Microorganisms 2015; 3:625-40. [PMID: 27682109 PMCID: PMC5023266 DOI: 10.3390/microorganisms3040625] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 09/29/2015] [Indexed: 12/22/2022] Open
Abstract
Alicyclobacillus spp. includes spore-forming and thermo-acidophilic microorganisms, usually recovered from soil, acidic drinks, orchards and equipment from juice producers. The description of the genus is generally based on the presence of ω-fatty acids in the membrane, although some newly described species do not possess them. The genus includes different species and sub-species, but A. acidoterrestris is generally regarded as the most important spoiler for acidic drinks and juices. The main goal of this review is a focus on the ecology of the genus, mainly on the species A. acidoterrestris, with a special emphasis on the different phenotypic properties and genetic traits, along with the correlation among them and with the primary source of isolation. Finally, the last section of the review reports on some alternative approaches to heat treatments (natural compounds and other chemical treatments) to control and/or reduce the contamination of food by Alicyclobacillus.
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Affiliation(s)
- Emanuela Ciuffreda
- Department of the Science of Agriculture, Food and Environment, University of Foggia, Via Napoli 15, 71122 Foggia, Italy.
| | - Antonio Bevilacqua
- Department of the Science of Agriculture, Food and Environment, University of Foggia, Via Napoli 15, 71122 Foggia, Italy.
| | - Milena Sinigaglia
- Department of the Science of Agriculture, Food and Environment, University of Foggia, Via Napoli 15, 71122 Foggia, Italy.
| | - Maria Rosaria Corbo
- Department of the Science of Agriculture, Food and Environment, University of Foggia, Via Napoli 15, 71122 Foggia, Italy.
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Fischer C, Hünniger T, Jarck JH, Frohnmeyer E, Kallinich C, Haase I, Hahn U, Fischer M. Food Sensing: Aptamer-Based Trapping of Bacillus cereus Spores with Specific Detection via Real Time PCR in Milk. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:8050-7. [PMID: 26306797 DOI: 10.1021/acs.jafc.5b03738] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Aerobic spores pose serious problems for both food product manufacturers and consumers. Milk is particularly at risk and thus an important issue of preventive consumer protection and quality assurance. The spore-former Bacillus cereus is a food poisoning Gram-positive pathogen which mainly produces two different types of toxins, the diarrhea inducing and the emetic toxins. Reliable and rapid analytical assays for the detection of B. cereus spores are required, which could be achieved by combining in vitro generated aptamers with highly specific molecular biological techniques. For the development of routine bioanalytical approaches, already existing aptamers with high affinity to B. cereus spores have been characterized by surface plasmon resonance (SPR) spectroscopy and fluorescence microscopy in terms of their dissociation constants and selectivity. Dissociation constants in the low nanomolar range (from 5.2 to 52.4 nM) were determined. Subsequently, the characterized aptamers were utilized for the establishment and validation of an aptamer-based trapping technique in both milk simulating buffer and milk with fat contents between 0.3 and 3.5%. Thereby, enrichment factors of up to 6-fold could be achieved. It could be observed that trapping protocol and characterized aptamers were fully adaptable to the application in milk. Due to the fact that aptamer selectivity is limited, a highly specific real time PCR assay was utilized following trapping to gain a higher degree of selectivity.
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Affiliation(s)
- Christin Fischer
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Tim Hünniger
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Jan-Hinnerk Jarck
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Esther Frohnmeyer
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Constanze Kallinich
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Ilka Haase
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
| | - Ulrich Hahn
- Institute of Biochemistry and Molecular Biology, University of Hamburg , Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Markus Fischer
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
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