Visualization Detection of Melamine in the Protein Feed
Shengbo Gao, Tingting Yao, Luoyun Zheng, Jiaying Xin
Available Online February 2016.
- https://doi.org/10.2991/emcm-15.2016.102How to use a DOI?
- Gold nanoparticles; Methanobactin; Protein feed; Melamine; Detection
- Methane-oxidizing bacteria is the branches of methyl oxidation bacteria, It is a kind of gram-negative bacteria, which can directly use methane as carbon and energy sources. Methanobactin (Mb) is a fluorescent peptide released by the Methane oxidizing bacteria. It consists of two serine, glycine, two cysteine and methionine. Methanobactin (Mb) can coordinate Cu(I) by two hydroxyimidazolates, with one N and one S atom. Methanobactin (Mb) can also bind to Au(III) and reduce it to Au(0). In the presence of hydroquinone as a electron donator, Mb can catalyze Au(III) reduce to Au(0) and yield gold nanoparticles continuously. Surface plasmon resonance of gold nanoparticles makes its aqueous solution has a typical absorption peak between 500 and 600nm, and a unique color of that can be observed by naked eyes. It can be identified by the color change and used in the detection of certain substances. In this paper, visual detection of melamine in protein feed based on methanobactin-(Mb) induced gold nanoparticles formation was studied. Visual detection is convenient and quick. Different concentrations of melamine in protein feed have been detected. The interference of several kinds of ingredients in protein feed have been investigated. The detection limit and the recovery rate have been calculated, either. The detection limit of melamine is much lower than 1 ppm.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Shengbo Gao AU - Tingting Yao AU - Luoyun Zheng AU - Jiaying Xin PY - 2016/02 DA - 2016/02 TI - Visualization Detection of Melamine in the Protein Feed BT - International Conference on Electronics, Mechanics, Culture and Medicine PB - Atlantis Press SP - 542 EP - 547 SN - 2352-538X UR - https://doi.org/10.2991/emcm-15.2016.102 DO - https://doi.org/10.2991/emcm-15.2016.102 ID - Gao2016/02 ER -