pH Responded Colorimetric ELISA for Sensitive Detection of Salmonella Choleraesuis in Milk
-
摘要: 人类常常因误食被猪霍乱沙门氏菌感染的食物而引发中毒。因此,急需构建适用于快速、灵敏检测食物中猪霍乱沙门氏菌污染的新方法。鉴于此,本文构建了一种pH响应比色酶联免疫吸附法灵敏检测牛奶中猪霍乱沙门氏菌。该方法利用葡萄糖氧化酶催化底物葡萄糖产生葡萄糖酸,导致溶液pH下降,进而引发溴甲酚紫(Bromocresol purple,BCP)溶液颜色由紫色变成亮黄色,随后通过记录BCP颜色变化(OD430/OD590)实现目标菌的定量检测。当菌浓度为2.54×103~6.17×105 CFU/mL,该方法定量检测猪霍乱沙门氏菌可用方程一表述:y1=0.1051ln (x)+0.7024(R2=0.7513);当菌浓度为6.17×105~1.67×107 CFU/mL,该方法定量检测猪霍乱沙门氏菌可用方程二表述:y2=1.3216ln (x)-15.797(R2=0.9711);当菌浓度大于1.67×107 CFU/mL时,BCP溶液呈现明显亮黄色,OD430/OD590值趋于稳定,无法实现猪霍乱沙门氏菌定量检测。将六个不同浓度的猪霍乱沙门氏菌(2.5×103~5.6×106 CFU/mL)加标至牛奶中,检测结果显示回收率介于72.16%~103.58%,相对标准偏差介于7.54%~15.30%。总之,本研究所构建的比色ELISA方法适用于牛奶中不同浓度的猪霍乱沙门氏菌快速、灵敏定量检测。
-
关键词:
- pH响应比色酶联免疫吸附法(pH-ELISA) /
- 葡萄糖氧化酶 /
- 溴甲酚紫 /
- 猪霍乱沙门氏菌
Abstract: Human maybe get poisoning after eating Salmonella choleraesuis-infected food. Thus,developing a new analytical technology for rapid and sensitive detection of Salmonella choleraesuis in food is urgently needed. Hence,a pH responded colorimetric enzyme-linked immunosorbent assay(pH-ELISA)was developed for sensitive detection of Salmonella choleraesuis in milk. In this method,glucose oxidase(GOx)was used to catalyze glucose for the generation of gluconic acid. The color of bromocresol purple(BCP)was changed from purple to bright yellow because the pH of sample solution decreased. Under the optimal conditions,the proposed method achieved two linear independent regression equations. When Salmonella choleraesuis concentration increased from 2.54×103 to 6.17×105 CFU/mL,the first regression equation was described as y1=0.1051ln(x)+0.7024(R2=0.7513). With the increase of Salmonella choleraesuis concentration from 6.17×105 to 1.67×107 CFU/mL,the second regression equation was expressed as y2=1.3216ln(x)-15.797(R2=0.9711). The average recoveries of the proposed method for spiked milk samples at Salmonella choleraesuis concentrations ranging from 2.5×103~5.6×106 CFU/mL were 72.16%~103.58% with the relative standard deviations ranging from 7.54%~15.30%. In conclusion,the developed colorimetric ELISA is suitable for the rapid and sensitive quantitation of Salmonella choleraesuis in milk. -
[1] Kordas A,Papadakis G,Milioni D,et al. Rapid Salmonella detection using an acoustic wave device combined with the RCA isothermal DNA amplification method[J]. Sensing and Bio-Sensing Research,2016,11(2):121-127.
[2] Wang S,Zheng L,Cai G,et al. A microfluidic biosensor for online and sensitive detection of Salmonella typhimurium using fluorescence labeling and smartphone video processing[J]. Biosensors and Bioelectronics,2019,140:111333.
[3] 郭耀东,韩晓江,张英华,等. 沙门氏菌检测的研究进展[J]. 农产品加工,2019(9):75-78. [4] 王毳,闫磊,曾庆祝. 沙门氏菌的检测技术与方法[J]. 现代食品科技,2007(5):82-85,75. [5] Chen J,Zhang L,Paoli G C,et al. A real-time PCR method for the detection of Salmonella enterica from food using a target sequence identified by comparative genomic analysis[J]. International Journal of Food Microbiology,2009,137(2):168-174.
[6] Grant A Q,Hashem F,Parveen S. Salmonella and campylobacter:Antimicrobial resistance and bacteriophage control in poultry[J]. Food Microbiology,2016,53:104-109.
[7] 彭亚博,李晓婷,方婷,等. 鸡肉中沙门氏菌和背景菌群动力学模型的研究[J]. 食品科学,2019(9):7-15. [8] Hu L,Ma L M,Zheng S,et al. Development of a novel loop-mediated isothermal amplification(LAMP)assay for the detection of Salmonella ser. Enteritidis from egg products[J]. Food Control,2018,88:190-197.
[9] Iñiguez-moreno M,Gutiérrez-lomelí M,Avila-novoa M G. Kinetics of biofilm formation by pathogenic and spoilage microorganisms under conditions that mimic the poultry,meat,and egg processing industries[J]. International Journal of Food Microbiology,2019,303:32-41.
[10] 朱海华,章建军,尹红娜,等. 一种快速富集生乳中沙门氏菌的方法[J]. 食品科技,2018,43(2):302-306. [11] Pinto M S,Pires A C S,Sant'ana h M P,et al. Influence of multilayer packaging and microfiltration process on milk shelf life[J]. Food Packaging and Shelf Life,2014,1(2):151-159.
[12] 梁攀,董萍,王洋,等. 免疫学技术在食品安全快速检测中的应用研究进展[J]. 食品安全质量检测学报,2018,9(9):2085-2089. [13] 马兰,王淑娟,曾海娟,等. 侧流层析技术研究进展[J]. 食品科学,2018,39(15):333-342. [14] 张帅,齐颖颖,张红星,等. 双抗夹心酶联免疫吸附快速检测冷鲜肉中的6种血清型沙门氏菌[J]. 食品科学,2016,37(16):211-215. [15] Chen R,Huang X,Li J,et al. A novel fluorescence immunoassay for the sensitive detection of Escherichia coli O157:H7 in milk based on catalase-mediated fluorescence quenching of CdTe quantum dots[J]. Analytica Chimica Acta,2016,947:50-57.
[16] Wang C,Xing K,Zhang G,et al. Novel ELISA based on fluorescent quenching of DNA-stabilized silver nanoclusters for detecting E. coli O157:H7[J]. Food Chemistry,2019,281:91-96.
[17] Gao B,Chen X,Huang X,et al. Urease-induced metallization of gold nanorods for the sensitive detection of Salmonella enterica Choleraesuis through colorimetric ELISA[J]. Journal of Dairy Science,2019,102(3):1997-2007.
[18] Hu J,Huang R,Sun Y,et al. Sensitive and rapid visual detection of Salmonella Typhimurium in milk based on recombinase polymerase amplification with lateral flow dipsticks[J]. Journal of Microbiological Methods,2019,158:25-32.
[19] 黄震,夏诗琪,刘道峰,等. 基于免疫磁分离的荧光微球免疫层析法检测猪霍乱沙门氏菌[J]. 分析化学,2017,45(2):217-223. [20] 夏诗琪,徐超莲,刘道峰,等. 胶体金免疫层析法联检食品中5种典型沙门氏菌模型的建立和优化[J]. 食品科学,2014,35(22):154-158. [21] 伍燕华,牛瑞江,赖卫华,等. 双抗夹心酶联免疫吸附法检测沙门氏菌[J]. 食品工业科技,2014,35(10):62-65. [22] Lvov Y,Antipov A A,Mamedov A,et al. Urease encapsulation in nanoorganized microshells[J]. Nano Letters,2001,1(3):125-128.
[23] Xiong Y,Pei K,Wu Y,et al. Colorimetric ELISA based on glucose oxidase-regulated the color of acid-base indicator for sensitive detection of aflatoxin B1in corn samples[J]. Food Control,2017,78:317-323.
[24] 中华人民共和国卫生部. GB 4789.4-2016食品安全国家标准食品微生物学检验沙门氏菌检验[S]. 北京:中国标准出版社,2016:1-7. [25] Gokduman K,Avsaroglu M D,Cakiris A,et al. Recombinant plasmid-based quantitative Real-Time PCR analysis of Salmonella enterica serotypes and its application to milk samples[J]. Journal of Microbiological Methods,2016,122:50-58.
[26] 刘立兵,耿云云,姜彦芬,等. 沙门氏菌重组酶聚合酶检测方法的建立及应用[J]. 食品科学,2019,40(2):298-303. -
期刊类型引用(9)
1. 王晓明,石金明,韩敏义,王孝治,李凌云,靳爽爽,董华发. 巴氏杀菌工艺对白切鸡食用品质及货架期的影响. 食品工业科技. 2024(11): 93-101 . 本站查看
2. 张咏彬,于卓然,李汴生,阮征,李瑞清,石金明. 超高压处理后预包装白切鸡安全性及食用品质的变化. 现代食品科技. 2024(11): 229-237 . 百度学术
3. 詹磊,徐卓越,蓝国玮,钟庆玲,刘倩桐,陈佩. 基于主成分分析构建混合多糖凝胶品质综合评价模型. 现代食品科技. 2023(04): 214-223 . 百度学术
4. 戢得蓉,石晶晶,王艺融,段丽丽. 复配防腐剂在怪味鸡丝中的应用研究. 中国食品添加剂. 2023(05): 233-240 . 百度学术
5. 吴世豪,黄天然,黄明. HS-SPME-GC-MS技术结合电子鼻分析热处理对南京盐水鸭高温蒸煮味的影响. 中国农业科学. 2023(17): 3435-3451 . 百度学术
6. 孔琪,饶胜其,杭锋. 乳酸菌发酵液对调理牛肉品质及风味的影响. 食品与发酵工业. 2023(21): 74-82 . 百度学术
7. 赵银峰,周春燕,吉莉莉,陈玲,陈德群. 喜德阉鸡与市售几种鸡肉的品质比较研究. 成都大学学报(自然科学版). 2022(01): 32-38 . 百度学术
8. 张乐乐,黄林玉,陈美珠,汪菲菲,楚艳艳,刘生杰. 荆芥口香糖的工艺优化. 河南科技学院学报(自然科学版). 2022(05): 38-45 . 百度学术
9. 陈乐乐,陈嘉澍,黄桂颖,冯卫华,沈畅华,陈俊文,曾晓房,陈海光,石金明,陈伟波. 感官分析在广式传统肉品研制与品控中的应用研究进展. 肉类研究. 2021(12): 64-69 . 百度学术
其他类型引用(5)
计量
- 文章访问数: 272
- HTML全文浏览量: 34
- PDF下载量: 25
- 被引次数: 14