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Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG
《农业科学与工程前沿(英文)》 2018年 第5卷 第3期 页码 321-329 doi: 10.15302/J-FASE-2017182
As one of the dominant reactions occurring during thermal treatment of food, the Maillard reaction not only leads to the formation of aroma, browning color and taste compounds, but also contributes to the formation of some unpleasant toxic substances including acrylamide, heterocyclic amines and advanced glycation end products. Polyphenols, one of the most abundant antioxidants in the human diet, are contained in different kinds of foods. In this review, some recent studies on the impact of dietary polyphenols on the formation of acrylamide, heterocyclic amines and advanced glycation end products formed during the Maillard reaction are summarized, including the research work conducted with both chemical model systems and real food model systems; the possible inhibitory mechanisms of different polyphenols are also summarized and discussed in this review. Basically we found that some dietary polyphenols not only scavenge free radicals, but also react with reactive carbonyl species, thus lowering the formation of toxic Maillard reaction products. This review provides a useful theoretical foundation for the application of polyphenols in food safety, and suggests some directions for further study of natural products as inhibitors against the formation of toxic substances in thermally processed food.
关键词: advanced glycation end products acrylamide food safety heterocyclic amine Maillard reaction polyphenols
Extractive desulfurization of model fuels with a nitrogen-containing heterocyclic ionic liquid
《化学科学与工程前沿(英文)》 2022年 第16卷 第12期 页码 1735-1742 doi: 10.1007/s11705-022-2167-x
关键词: extractive desulfurization nitrogen-containing heterocyclic ionic liquid reduced density gradient analysis desulfurization selectivity
XIAO Ling, WEI Xiuzhen, ZHU Baoku
《化学科学与工程前沿(英文)》 2007年 第1卷 第4期 页码 355-359 doi: 10.1007/s11705-007-0064-y
关键词: different cross-linking amine-ester temperature crosslinked efficient
Activated carbons and amine-modified materials for carbon dioxide capture –– a review
Zhenhe CHEN, Shubo DENG, Haoran WEI, Bin WANG, Jun HUANG, Gang YU
《环境科学与工程前沿(英文)》 2013年 第7卷 第3期 页码 326-340 doi: 10.1007/s11783-013-0510-7
关键词: adsorption capacity CO2 capture activated carbon amine-impregnated adsorbents
《化学科学与工程前沿(英文)》 2022年 第16卷 第7期 页码 1090-1100 doi: 10.1007/s11705-021-2091-5
关键词: synthesis pyrimidin-4-amine derivatives 1 2 4-oxadiazole insecticidal activity structure-activity relationship
Fengli Li, Chuang Chen, Yuda Wang, Wenpeng Li, Guoli Zhou, Haoqin Zhang, Jie Zhang, Jingtao Wang
《化学科学与工程前沿(英文)》 2021年 第15卷 第4期 页码 984-997 doi: 10.1007/s11705-020-2000-3
关键词: carbon-hybridized and amine-modified nanofibers polyacrylonitrile metal ions and dyes wastewater adsorption kinetics
Synthesis of spherical parallel manipulator for dexterous medical task
Abdelbadia CHAKER, Abdelfattah MLIKA, Med Amine LARIBI, Lotfi ROMDHANE, Sa?d ZEGHLOUL
《机械工程前沿(英文)》 2012年 第7卷 第2期 页码 150-162 doi: 10.1007/s11465-012-0325-4
This paper deals with the design and the analysis of a spherical parallel manipulator (SPM) for a haptic minimally invasive surgery application. First the medical task was characterized with the help of a surgeon who performed a suture technique called anastomosis. A Vicon system was used to capture the motion of the surgeon, which yielded the volume swept by the tool during the anastomosis operation. The identified workspace can be represented by a cone with a half vertex angle of 26°. A multi objective optimization procedure based on genetic algorithms was then carried out to find the optimal SPM. Two criteria were considered, i.e., task workspace and mechanism dexterity. The optimized SPM was then analyzed to determine the error on the orientation of the end effector as a function of the manufacturing errors of the different links of the mechanism.
关键词: spherical parallel manipulator (SPM) anastomosis haptic motion capture optimization workspace dexterity genetic algorithm manufacturing errors
Synthesis of a cardanol-amine derivative using an ionic liquid catalyst
Atanu Biswas, Carlucio R. Alves, Maria T. S. Trevisan, Roseane L. E. da Silva, Roselayne F. Furtado, Zengshe Liu, H. N. Cheng
《化学科学与工程前沿(英文)》 2016年 第10卷 第3期 页码 425-431 doi: 10.1007/s11705-016-1581-3
关键词: cardanol epoxidation aminohydrin aniline ionic liquid aniline-formaldehyde
New nanostructured sorbents for desulfurization of natural gas
Lifeng WANG, Ralph T. YANG
《化学科学与工程前沿(英文)》 2014年 第8卷 第1期 页码 8-19 doi: 10.1007/s11705-014-1411-4
关键词: desulfurization natural gas desulfurization hydrogen sulfide sorbent amine-silica sorbent
Majid Peyravi
《化学科学与工程前沿(英文)》 2020年 第14卷 第4期 页码 673-687 doi: 10.1007/s11705-019-1800-9
关键词: amine functionality nanoporous membrane adsorption isotherm thermodynamic parameters landfill leachate
口袋改造策略克服ω-氨基转移酶AtATA对1-乙酰基萘活性和稳定性之间的"trade-off"效应 Article
曹佳仁, 樊芳芳, 吕常江, 胡升, 赵伟睿, 梅家祺, 邱帅, 梅乐和, 黄俊
《工程(英文)》 2023年 第30卷 第11期 页码 203-214 doi: 10.1016/j.eng.2023.04.009
氨基转移酶是一种能够催化前手性酮或醛不对称胺化生成相应的手性胺的生物催化剂。然而,活性和稳定性之间的“trade-off”效应限制了其在工业生产中的应用。因此,开发克服这种相互抵消的“trade-off”效应的普适方法以及获得高效催化的氨基转移酶具有重要意义。对此,我们针对土曲霉属氨基转移酶(AtATA)的底物结合口袋进行共进化改造,以确定控制AtATA对1-乙酰基萘活性和稳定性的关键氨基酸。通过多轮实验筛选,我们发现了一个含四个关键氨基酸位点(R128,V149,L182和L187)的“结构开关”, “最佳”突变体(AtATA_D224K/V149A/L182F/L187F; 命名为M4)。与亲本酶AtATA_D224K(AtATAPa)相比,M4的催化效率(kcat/Km1-乙酰基萘,其中kcat是催化活性常数,为10.1 min-1,Km1-乙酰基萘是米氏常数,为1.7 mmol·L-1)和半衰期(t1/2)分别增加59倍和1.6倍。此外,在50 mL反应体系中,M4催化20 mmol·L-1 1-乙酰基萘,反应10 h后可获得产率为78%的目标产物(R)-(+)-1-(1-萘基)乙胺((R)-NEA),对映体纯度达到R > 99.5%。同时,M4还显示出对各种1-乙酰萘酮类似物显著增强的催化活性。通过结构和序列信息分析,进一步发现分子内相互作用的加强以及底物结合口袋和5’-磷酸吡哆醛(PLP)结合口袋之间的角度扩大是AtATA热稳定性和活性同步增强的重要原因。最后,口袋工程策略也将增强的活性和热稳定性成功地转移到其他三个序列相似性介于8%~22%之间的氨基转移酶中。这项研究对于克服ATA活性和热稳定性之间的权衡具有重要意义。
关键词: “trade-off”效应 共进化 氨基转移酶 口袋改造
《化学科学与工程前沿(英文)》 2023年 第17卷 第12期 页码 2025-2036 doi: 10.1007/s11705-023-2356-2
关键词: acid chlorides covalent crosslinking desalination linear aliphatic amine micropollutant removal thin film composite membranes
Yan Shi, Fangjun Huo, Yongkang Yue, Caixia Yin
《化学科学与工程前沿(英文)》 2022年 第16卷 第1期 页码 64-71 doi: 10.1007/s11705-021-2048-8
关键词: heterocyclic compound hydrogen sulfide ratiometric mitochondrial targeted
曹学锋,刘长淼,胡岳华
《中国工程科学》 2011年 第13卷 第1期 页码 93-97
研究4种十二取代叔胺(DRN,DEN,DPN和DBN)对高岭石的浮选行为。发现4种叔胺对高岭石的浮选捕收能力都较好,其中DEN最好,浮选回收率最高可达92 %以上。4种叔胺主要依靠静电引力吸附在高岭石表面,在酸性pH范围内,浮选高岭石的回收率较高,随着pH的增大,叔胺的阳离子组分减少,使得浮选回收率下降。Zeta电位研究表明,高岭石在整个pH范围内,表面主要带负电,4种叔胺与高岭石作用后,能显著增加高岭石的Zeta电位。红外光谱研究表面,4种叔胺主要与高岭石表面发生了电性作用的物理吸附。叔胺中N原子上的取代基的给电子效应和空间位阻效应是造成 4 种叔胺浮选能力差异的主要原因。
标题 作者 时间 类型 操作
Impact and inhibitory mechanism of phenolic compounds on the formation of toxic Maillard reaction products in food
Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG
期刊论文
Reaction and characterization of crosslinking hyperbranched poly (amine-ester) with succine anhydride
XIAO Ling, WEI Xiuzhen, ZHU Baoku
期刊论文
Activated carbons and amine-modified materials for carbon dioxide capture –– a review
Zhenhe CHEN, Shubo DENG, Haoran WEI, Bin WANG, Jun HUANG, Gang YU
期刊论文
Synthesis, insecticidal activities and DFT study of pyrimidin-4-amine derivatives containing the 1,2,4
期刊论文
Activated carbon-hybridized and amine-modified polyacrylonitrile nanofibers toward ultrahigh and recyclable
Fengli Li, Chuang Chen, Yuda Wang, Wenpeng Li, Guoli Zhou, Haoqin Zhang, Jie Zhang, Jingtao Wang
期刊论文
Synthesis of spherical parallel manipulator for dexterous medical task
Abdelbadia CHAKER, Abdelfattah MLIKA, Med Amine LARIBI, Lotfi ROMDHANE, Sa?d ZEGHLOUL
期刊论文
Synthesis of a cardanol-amine derivative using an ionic liquid catalyst
Atanu Biswas, Carlucio R. Alves, Maria T. S. Trevisan, Roseane L. E. da Silva, Roselayne F. Furtado, Zengshe Liu, H. N. Cheng
期刊论文
Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic studies
Majid Peyravi
期刊论文
The effect of altering crosslinker chemistry during interfacial polymerization on the performance of nanofiltration membranes for desalination, organic, and micropollutants removal
期刊论文
N-Positive ion activated rapid addition and mitochondrial targeting ratiometric fluorescent probes for in vivo cell H2S imaging
Yan Shi, Fangjun Huo, Yongkang Yue, Caixia Yin
期刊论文