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A quantitative method for detecting meat contamination based on specific polypeptides
Feng, Chaoyan,Xu, Daokun,Liu, Zhen,Hu, Wenyan,Yang, Jun,Li, Chunbao Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.9
Objective: This study was aimed to establish a quantitative detection method for meat contamination based on specific polypeptides. Methods: Thermally stable peptides with good responses were screened by high resolution liquid chromatography tandem mass spectrometry. Standard curves of specific polypeptide were established by triple quadrupole mass spectrometry. Finally, the adulteration of commercial samples was detected according to the standard curve. Results: Fifteen thermally stable peptides with good responses were screened. The selected specific peptides can be detected stably in raw meat and deep processed meat with the detection limit up to 1% and have a good linear relationship with the corresponding muscle composition. Conclusion: This method can be effectively used for quantitative analysis of commercial samples.
Design and investigation of bladder power pump driven by an external electromagnet
Xiao Li,Ting Guan,Dongcai Zhou,Chunbao Liu 대한기계학회 2014 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.28 No.9
This study aims to evaluate the feasibility of the bladder power pump driven by an external electromagnet proposed by the authors. The structure of the pump was designed based on its working principle. The mathematical model and 3D finite element model of theelectromagnetic field of the pump were established. The electromagnetic driving property of the pump was analyzed using the models,and the micturition performance of the pump was investigated in the simulated experimental system. Results show that maximum intravesicalpressure and maximum urine flow rate reached 10.8 KPa and 13.9 cm³/s, respectively, approaching the normal human urodynamicparameters. This novel pump has the potential of being used for assisting neurogenic bladder micturition.