检索结果-南通市图书馆

Straw bio-degradation by acidogenic bacteria and composite fungi

Journal of Environmental Sciences 2004年第4期16卷 690-693页

作者： ZHANGKe-qiang CHENXiu-wei JIMin NINGAn-rong FANHuan ZHOUKe China.CollegeofEnvironmentalScienceandEngineering TianjinUniversityTianjin300072 TianjinAgro-biologicalTechniqueResearchCenter Tianjin300192China AgriculturalEnvironmentProtectionInstitute M.O.A.Tianjin300191China

A composite microbial system, including a strain of Candida tropicalis(W3), a strain of Lactobacillus plantarm(WY3) and three strains of basidiomycete pL104, pL113 and C33, was chosen to degrade corn straw. The final pH was acid owing to the inoculation of acidogenic bacteria, and under this condition the composite fungi system could produce complex enzyme to destroy the compact structure of corn straw. The experimental results showed that the biomass of composite fungi could reach up to maximum when the pH value was 4.5. Through the bio-degradation by combining acidogenic bacteria with the composite fungi system, the cellulose, hemi-cellulose and lignin degradation rates of corn straw powder were 26.36%, 43.30% and 26.96%, respectively. And the gross crude protein content increased 60.41%. This study provided the evidence for the feasibility of developing a composite microbial system with high capability of degrading straw lignocelluloses in order to make reasonable use of straw resource and protect rural eco-environment.

关键词： lignocellulose bio-degradation acidogenic bacteria composite fungi system

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Recent advances using equal-channel angular pressing to improve the properties of biodegradable Mg-Zn alloys

引用

镁合金学报(英文) 2023年第7期11卷 2260-2284页

作者： Mohammad Hashemi Reza Alizadeh Terence G.Langdon Department of Materials Science and Engineering Sharif University of TechnologyTehranIran Materials Research Group Department of Mechanical EngineeringUniversity of SouthamptonSouthampton SO171BJUnited Kingdom

Magnesium alloys are of considerable current interest for use as degradable implants due to their unique properties including biodegrad-ability,biocompatibility,low density and adequate mechanical ***,there is a need to further improve these properties either by alloying or through the use of appropriate *** the different biodegradable Mg alloys now in use,the Mg-Zn series are of special interest and have been the subject of many research *** is primarily because Zn is an essential element for the human body in addition to its positive effects in improving the mechanical strength and lowering the degradation rate of the *** properties of Mg-Zn alloys may be further improved both through the addition of third and fourth alloying elements such as Ca,Ag,Sn or Sr and/or by thermo-mechanical processing where the latter is more environmentally and economically *** practice,procedures based on the application of severe plastic deformation(SPD)are especially suited to produce fine-grained microstructures with improved mechanical,degradation and cell ***-channel angular pressing(ECAP)is a popular SPD technique that has the capability of pro-ducing bulk materials that are sufficiently large for use as typical ***,this review is designed to provide a comprehensive summary of the research that has been undertaken on ECAP-processed biodegradable Mg-Zn alloys.

关键词： bio-degradation ECAP Fine-grained microstructure Mg–Zn alloys Severe plastic deformation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Enhanced RuBisCO activity and promoted dicotyledons growth with degradable carbon dots

引用

Nano Research 2019年第7期12卷 1585-1593页

作者： Hao Li Jian Huang Yang Liu Fang Lu Jun Zhong Yong Wang Shuiming Li Yeshayahu Lifshitz Shuit-Tong Lee Zhenhui Kang Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & DevicesJoint International Research Laboratory of Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China School of biology & basic medical sciences Soochow universitySuzhou 215123China College of Life Science and Oceanography Shenzhen Key Laboratory of Marine Bioresources and EcologyShenzhen UniversityShenzhen 518060China School of Basic Medical Sciences Beijing University of Chinese MedicineBeijing 100029China Department of Materials Science and Engineering TechnionIsrael Institute of TechnologyHaifa 3200003Israel

The ~ 5 nm degradable carbon dots (CDs) were synthesized directly from carbon rod by a one-step electrochemical method at room *** as-prepared CDs can effectively enhance the ribulose bisphosphate carboxylase oxygenase (RuBisCO) activity,and then promote the dicotyledons growth (soybean,tomato,eggplant and so on) and finally increase their ***,we used Arabidopsis thaliana and Trifolium repens *** model plants to systematically study the beneficial effects of CDs on plant *** include:(i) accelerating seed germination;(ii) enlarging root elongation;(iii) increasing metal ions absorption and delivery;(iv) improving enzymes activity;(v) enhancing the carbohydrate content;(vi) degradation into plant hormone analogues and CO2;and finally (vii) enhancing the grain production by about 20%.

关键词： carbon dots bio-degradation photosynthesis plant life cycle improve growth

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Polymerase Chain Reaction Based DNA Fingerprinting Technique: Amplified Fragment Length Polymorphism for Molecular Typing of Perchlorate Reducing Bacteria

引用

Journal of Environmental Protection 2014年第12期5卷 1111-1115页

作者： Anita Shete Vikram Ghole Manju Raina Bikash Aich Aavanira biotech Pvt. Ltd. Pune India Department of biochemistry University of Pune Pune India Ministry of Environment & Forests New Delhi India

Genetic profiling of environmentally important organisms is very essential for easy identification of biodegrading bacteria. In the previous study, we have reported the perchlorate biodegrading bacteria and characterized them by biochemical analysis and 16 S sequencing. We have observed a very similar isolates of Arthrobacter (Actinobacteria) degrading 4.1 mM and 4.7 mM of ammonium perchlorate [1] 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F005200650066003300390038003100390037003300340037000000 . In this study, we report PCR based DNA fingerprinting technique to generate the genomic signature of these closely related group of Arthrobacter species. This study also effectively generates unique genomic signature for each of these isolates that has potential for use in molecular monitoring as well as for tracking genomic variation and rearrangements.

关键词： AFLP—Amplified Fragment Length Polymorphism Arthrobacter Ammonium Perchlorate bio-degradation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：