华兆哲
发酵工程;环境工程。
个性化签名
- 姓名:华兆哲
- 目前身份:
- 担任导师情况:
- 学位:
-
学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
- 职称:-
-
学科领域:
环境科学技术基础学科
- 研究兴趣:发酵工程;环境工程。
华兆哲,男,教授,博士生导师。
学习经历:1987年9月-1991年7月 南京大学环境科学系,获学士学位;1991年9月-1994年7月 南京大学环境科学与工程系,获硕士学位;1996年3月-2000年1月 无锡轻工大学生物工程学院,获博士学位;2001年10月-2003年9月 教育部公派日本九州工业大学生物化学工程与科学系,博士后。
研究经历:1994年8月-1996年4月 无锡轻工大学生物工程学院,助教;1996年4月-2002年7月 江南大学生物工程学院,讲师;2002年7月-2006年7月 江南大学生物工程学院,副教授;2006年7月- 江南大学生物工程学院,教授。
学术及社会兼职:中国微生物学会会员,日本化学工程学会会员。
研究方向:发酵工程;环境工程。
科研奖励:1. 以高产量、高转化率和高生产强度为目标 的发酵过程优化技术,国家科技进步二等奖,2006,第五; 2. 厌氧-好氧生物反应器处理有机废水的研究与工业应用,江苏省科技进步奖评委会,科技进步三等奖,2001,第三;3. 发酵法生产透明质酸,国家教育部,科技进步二等奖,2005,第四;4. 无锡市优秀教育工作者,2003-2005;5.《培养高素质发酵工程研究生科研创新能力的研究与实践》,江苏省高等教育教学成果奖一等奖,2005,第四;6.《从科研意识、科研方法和科研精神三方面培养高素质研究生的理论与实践》,江南大学教学成果一等奖,2003,第四。
-
主页访问
1599
-
关注数
0
-
成果阅读
166
-
成果数
4
华兆哲, Zhaozhe Huaa, *, , Jian Chena, Shiyi Luna, XiaorongWang b
Water Research 37(2003)4143-4150,-0001,():
-1年11月30日
The objective of this study was to investigate the influence of the biosurfactant BS-UC on surface properties of microbial cells and biodegradation of petroleum hydrocarbons. The biosurfactant BS-UC was produced by Candida antarctica from n-undecane as the substrate. It was found that the addition of BS-UC influenced positively the emulsification and the biodegradation of a variety of n-alkanes substrates. Besides, BS-UC also changed the hydrophobicity and zeta potential of the cell surface, and thus made the microbial cell attach to the hydrophobic substrate easily. The cell transport experiment also indicated that the addition of BS-UC changed both zeta potential of the cell and that of the porous media, and improved the retention of the cells in the media. So it will make BS-UC a promisingchoice for use in bioremediation of petroleum contamination.
Biosurfactant, Biodegradation, Alkane, Surface properties, Bioremediation
-
31浏览
-
0点赞
-
0收藏
-
0分享
-
196下载
-
0评论
-
引用
【期刊论文】Influence of oxygen level on oxidative stress response of Bacillus sp. F26 to menadione
华兆哲, Guoliang Yan a, b, Zhaozhe Hua b, Dengru Liu b, Guocheng Du a, Jian Chen a, *
Process Biochemistry 41(2006)764-769,-0001,():
-1年11月30日
The effects of different dissolved oxygen (DO) concentration (as % air saturation) on the oxidative stress response of Bacillus sp. F26 to menadione were investigated in a fermenter. The culture response to the oxidative stress produced by continuous addition of menadione (50 mM/h) was characterized in terms of the intracellular activities of two key defensive enzymes, superoxide dismutase (SOD) and catalase (CAT), cell growth and lipid peroxidation. It was found that oxidative damage to exponential cells induced by menadione was amplified by incremental DO concentration, compared with the untreated cells, which was indicative of the decrease in biomass (DCW) and the greater increase in malonedialdehyde (MDA) concentration when DO concentrations were raised from 25 to 55% and 80% saturated DO. As a result, increments of SOD and CAT activities during the exponential phase of growth were well associated with the enhancement of DO concentrations, whereas no inhibition of growth and induction of enzymes were observed in comparison to untreated cells below 5% saturated DO. The present results show that the formation of reactive oxygen species (ROS) induced by menadione is oxygen-dependent. Higher DO concentrations outside the cells can amplify the oxidative stress response of Bacillus sp. F26 to menadione.
Bacillus sp., F26, Oxidative stress, Menadione, Dissolved oxygen concentration, Superoxide dismutase, Catalase
-
40浏览
-
0点赞
-
0收藏
-
0分享
-
187下载
-
0评论
-
引用
【期刊论文】Formation of Hydrogen Peroxide in Photocatalytic Reactions
华兆哲, Fumihide Shiraishi, * Tsugunori Nakasako, and Zhaozhe Hua
J. Phys. Chem. A 2003, 107, 11072-11081,-0001,():
-1年11月30日
To characterize the formation of H2O2 in photocatalytic reactions, HCHO and HCOOH have been photocatalytically decomposed by use of TiO2 and Pd/TiO2 under irradiation with the UV light emitted from a blacklight blue fluorescent lamp (BL) or germicidal lamp (GL). An enzymatic method has been introduced to accurately measure the H2O2 concentration. The photocatalyst irradiated with the UV light emitted from the GL produces H2O2 from water at a larger rate and amount. Deposition of Pd on TiO2 increases the rate and amount of the formation of H2O2 from water. In the absence of the photocatalyst, no HCOOH is decomposed under irradiations with both the UV lights from the BL and GL, whereas the decomposition becomes possible in the presence of the photocatalyst. H2O2 is formed in parallel with the photocatalytic decomposition of HCOOH. In the presence of the photocatalyst, the concentration of the H2O2 formed during the decomposition of HCHO is smaller than that formed from water alone. In contrast, this relationship is reversed with the decomposition of HCOOH. This is considered due to the formation of H2O2 in the process of the decomposition of HCOOH to carbon dioxide and water. The rates of decomposition of HCHO and HCOOH are directly proportional to their respective rates of formation of H2O2, indicating that there is a close relationship between the photocatalytic activity and the capability of the photocatalyst to form H2O2.
-
58浏览
-
0点赞
-
0收藏
-
0分享
-
96下载
-
0评论
-
引用
华兆哲, Sun Hao, Wang Xiaorong*, Hua Zhaozhe, Wu Chonghua, Wang Liansheng, Dai Lemei, Li Zhong, Chen Yijun
Chemosphere, Vol. 33, No.8, pp. 1475-1483, 1996,-0001,():
-1年11月30日
In this paper, Bioconcentration and elimination of five light rare earth elements(KEEs) La, Ce, Pr, Nd and Sm were investigated in carp (Cyprinus carpio L.). The results show that internal organs had high ability to bioconcentrate light REEs. The order of BCFs of REEs was mostly internal organs >> gills>skeleton>muscle, there were slight differences among the BCF values of different REEs in a given tissue. In the elimination process, there were two patterns of elimination, the pattern of elimination in giIlsskeleton and muscle could be descn'bed by two-compartment model and the pattern of elimination in internal organs could be divided into two periods, the second period could be described by one-compartment model The biological haft-lives (Tb) of each REEs in tissues of carp were obtained. The results also indicated that internal organs were considered to be the most important site of light REEs' detoxification and metabolism.
Cyprinus carpio U,, Bioconcentration and elimination,, Light Rare Earth Elements,, Models,, La,, Ce,, Pr,, Nd,, Sm
-
37浏览
-
0点赞
-
0收藏
-
0分享
-
89下载
-
0评论
-
引用