Guangjun Nie
Chinese Academy of Sciences
10 Papers
66 Citations
Guangjun Nie is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Tannase & Catalysis. The author has an hindex of 5, co-authored 10 publications. Previous affiliations of Guangjun Nie include University of Science and Technology of China & Anhui Polytechnic University.
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Papers
Development of a tannase biocatalyst based on bio-imprinting for the production of propyl gallate by transesterification in organic media
TL;DR: The results show that bio-imprinting methods can activate tannase remarkably, and they were combined to develop a tann enzyme biocatalyst with a 40% conversion rate of substrate, 100-fold higher than that of the control.
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N+ ion beam implantation of tannase-producing Aspergillus niger and optimization of its process parameters under submerged fermentation
TL;DR: In this paper, N+ ion beam implantation was used to enhance Aspergillus niger TA9701 in tannase yield and optimization of process parameters under submerged fermentation was carried out.
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Characterization of Bioimprinted Tannase and Its Kinetic and Thermodynamics Properties in Synthesis of Propyl Gallate by Transesterification in Anhydrous Medium
Guangjun Nie,Guangjun Nie,Guangjun Nie,Zhiming Zheng,Guohong Gong,Genhai Zhao,Yan Liu,Yan Liu,Junying Song,Jun Dai +9 more
TL;DR: The investigations of pH and temperature found that the imprinted tannase holds an optimum activity at pH 5.0 and 40 °C, and the bioimprinting technique has a profound enhancing effect on the adapted tann enzyme in substrate affinity and thermostability.
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One-pot bio-synthesis of propyl gallate by a novel whole-cell biocatalyst
Guangjun Nie,Guangjun Nie,Guangjun Nie,Zhiming Zheng,Wenjin Yue,Yan Liu,Yan Liu,Hui Liu,Peng Wang,Genhai Zhao,Weirong Cai,Zheng-lian Xue +11 more
TL;DR: The novel whole-cell biocatalyst of Aspergillus niger was prepared and utilized to catalyze the transesterification with tannic acid as a raw material and shows that a promising conversion rate, 43%, was achieved by the pH-tuned mycelium-bound tannase.
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Synthesis of propyl gallate from tannic acid catalyzed by tannase from Aspergillus oryzae: Process optimization of transesterification in anhydrous media
Guangjun Nie,Guangjun Nie,Guangjun Nie,Hui Liu,Zhen Chen,Peng Wang,Genhai Zhao,Zhiming Zheng +7 more
TL;DR: In this paper, a tannase-catalyzed transesterification from tannic acid, process parameters of the reaction and reaction mode were optimized further to improve the conversion rate of substrate.
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