Targeting the cell wall: Preparation of monoclonal antibody for accurate identification of Alicyclobacillus acidoterrestris in apple juice

Targeting the cell wall: Preparation of monoclonal antibody for accurate identification of Alicyclobacillus acidoterrestris in apple juice
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靶向细胞壁:制备单克隆抗体以准确鉴定苹果汁中的酸土脂环酸芽孢杆菌

DOI:
10.1016/j.foodcont.2020.107596
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发表时间:
2021-03
期刊:
影响因子:
6
通讯作者:
Yuan Yahong
Yuan Yahong
中科院分区:
农林科学1区
文献类型:
--
作者:
Shi Yiheng;Zhou Lei;Qu Xiaowei;Yue Tianli;Yuan Yahong

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相似文献

酸土脂环酸芽孢杆菌是引起苹果汁腐败的主要微生物。现有的检测方法大多需要先进的设备和熟练的技术人员,这两者都不适合实际应用。本研究建立了一种有效的鉴定A.建立了间接夹心酶联免疫吸附试验(is-ELISA)。该方法利用靶向A细胞壁蛋白的种特异性单克隆抗体(mAb)。酸土生菌该方法灵敏度高,检出限为5.4 × 102 CFU/mL。此外,该测定能够准确区分A.酸土芽孢杆菌和脂环酸芽孢杆菌属的其它种。同时,对人工污染苹果汁中is-ELISA的适用性进行了评价。该方法简便、灵敏、特异,是一种可靠的检测方法。酸土抑制和由此产生的防止果汁腐败。
Alicyclobacillus acidoterrestrisrepresents the predominant microorganism implicated in apple juice spoilage. Most of existing detection methods for this microorganism necessitate advanced equipment and skilled technicians, both of which are unsuitable for practical application. In this study, an effective approach for the identification ofA. acidoterrestriswas developed based on an indirect sandwich enzyme-linked immunosorbent assay (is-ELISA). This method utilizes the species-specific monoclonal antibody (mAb) targeting a cell wall protein ofA. acidoterrestris. The is-ELISA was highly sensitive with a limit of detection (LOD) of 5.4 × 102CFU/mL. Furthermore, the assay is capable of accurately differentiating betweenA. acidoterrestrisand other species of genusAlicyclobacillus. The applicability of is-ELISA was also evaluated in artificially contaminated apple juice. The convenience, simplicity, sensitivity and specificity of this assay represents a robust method for the detection ofA. acidoterrestrisand the resultant prevention of the spoilage of fruit juices.
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