Recent Progress on Derivation and Chemical Modification of Rosin Acids

2013 ◽  
Vol 785-786 ◽  
pp. 1111-1116 ◽  
Author(s):  
Yan Ju Lu ◽  
Rong Sheng Xu ◽  
Zhen Dong Zhao ◽  
Ping Hui Zhang ◽  
Mi Xia Wang
Keyword(s):  
Chemical Modification ◽  
Chemical Industry ◽  
Renewable Resources ◽  
Recent Progress ◽  
Complex Mixture ◽  
Isolation Method ◽  
Neutral Compounds ◽  
Rosin Acids

Rosin has been recognized as one of the most important renewable resources in the forest chemical industry. It is a complex mixture of acidic and neutral compounds. The isolation method, derivation and modification of rosin acids were summarized mainly, such as isomerization, disproportionation, hydrogenation, maleation and esterification of rosin acids were reviewed. It is considered that the derivation and modification of rosin acids is the most important way to use rosin in higher value.

The Modification and Design of Antimicrobial Peptide

2018 ◽  
Vol 24 (8) ◽  
pp. 904-910 ◽  
Author(s):  
Yidan Gao ◽  
Hengtong Fang ◽  
Lu Fang ◽  
Dawei Liu ◽  
Jinsong Liu ◽  
...  
Keyword(s):  
Chemical Modification ◽  
Antimicrobial Peptide ◽  
Protein Modification ◽  
Recent Progress ◽  
Therapeutic Agents ◽  
Manufacturing Cost ◽  
Commercial Development ◽  
Biochemical Modification ◽  
Naturally Occurring ◽  
Application Prospects

The antimicrobial peptides (AMPs) are a group of unique naturally occurring anti-microbial compounds with around 50 amino acids. It represents promising therapeutic agents to the infectious disease without concerning about drug resistance. However, commercial development of these peptides for even the simplest application has been hindered by the limitations of sources, instability, toxicity and bioavailability. To improve the properties of the artificial synthesized AMPs, the modification and design are the hotspots of the AMPs research. In fact, more than half of the known AMPs are naturally modified. In this review, two types of modification strategies, biochemical modification and chemical modification were summarized. Although, the chemical modification is versatile and direct, the manufacturing cost is greatly increased compared to the antibiotics. With the recent progress of the protein modification enzyme, the biochemical modification of the antimicrobial peptide followed by heterologous expression has great application prospects.

Renewable resources in the chemical industry – Breaking away from oil?

2007 ◽  
Vol 2 (12) ◽  
pp. 1505-1513 ◽  
Author(s):  
Stefan Nordhoff ◽  
Hans Höcker ◽  
Henrike Gebhardt
Keyword(s):  
Chemical Industry ◽  
Renewable Resources

Recent Progress in Chemical Modification of the Natural Polysaccharide Guar Gum

2021 ◽  
Vol 18 ◽  
Author(s):  
Simran Kaur ◽  
Soumava Santra
Keyword(s):  
Chemical Modification ◽  
Recent Progress ◽  
Guar Gum ◽  
Biological Properties ◽  
Hydroxyl Groups ◽  
Chemical Modifications ◽  
Natural Polysaccharide ◽  
Potential Applications ◽  
Pharmaceutical Industries

: Guar gum (GG) is a natural heteropolysaccharide. Due to its non-toxic, eco-friendly, and biodegradable nature, GG has found wide applications in many areas, in particular food, paper, textile, petroleum, and pharmaceutical industries. Therefore, GG is often called “Black Gold” as well. Due to the presence of hydroxyl groups, GG can be modified by various methods. The physical and biological properties of GG can be modulated by chemical modifications. In this manuscript, various methods for the chemical modifications of GG have been discussed according to the type of modifications. Mechanistic insights have also been provided whenever possible. In addition, potential applications of new GG derivatives have also been briefly mentioned.

Research on Alginate Fiber and its Application to Textiles

2013 ◽  
Vol 821-822 ◽  
pp. 68-71 ◽  
Author(s):  
Xin Yu ◽  
Huan Mou ◽  
Yi Yuan Zhang
Keyword(s):  
Research And Development ◽  
Environmental Pollution ◽  
Production Process ◽  
Chemical Industry ◽  
Renewable Resources ◽  
Oil Price ◽  
Textile Fiber ◽  
Crude Oil Price ◽  
Textile Materials ◽  
Alginate Fiber

With the development of the society, in the field of textile people begin to pursue comfort, health and nature clothing. Traditional textile materials rely too such on petroleum and chemical industry, while global crude oil price is rising and the production process is easy to cause environmental pollution. All of these promote the research and development of new textile fiber. Alginate fiber taken from the ocean having rich renewable resources and excellent environmental protection features opens a new and important source of fiber. This paper mainly introduces the development situation, the characteristics and the application prospect of alginate fiber, and elaborates the alginate fiber application in the clothing products.

scholarly journals Recent Progress in the Development of Fluorescent Probes for Thiophenol

Molecules ◽  
2019 ◽  
Vol 24 (20) ◽  
pp. 3716 ◽  
Author(s):  
Yuanqiang Hao ◽  
Qianye Yin ◽  
Yintang Zhang ◽  
Maotian Xu ◽  
Shu Chen
Keyword(s):  
Fluorescent Probes ◽  
Chemical Industry ◽  
Recent Progress ◽  
Future Research ◽  
Aromatic Thiols

Thiophenol (PhSH) belongs to a class of highly reactive and toxic aromatic thiols with widespread applications in the chemical industry for preparing pesticides, polymers, and pharmaceuticals. In this review, we comprehensively summarize recent progress in the development of fluorescent probes for detecting and imaging PhSH. These probes are classified according to recognition moieties and are detailed on the basis of their structures and sensing performances. In addition, prospects for future research are also discussed.

Recent progress of liposomes in nanomedicine

2014 ◽  
Vol 2 (39) ◽  
pp. 6686-6691 ◽  
Author(s):  
Leticia Hosta-Rigau ◽  
Philipp Schattling ◽  
Boon M. Teo ◽  
Martin E. Lynge ◽  
Brigitte Städler
Keyword(s):  
Drug Delivery ◽  
Chemical Modification ◽  
Recent Progress

Liposome formulations are highlighted focusing on their chemical modification, interaction with cells, and use in substrate-mediated drug delivery and cell mimicry.

Recent progress in andrographolide derivatization: structural modification and biological activity

2021 ◽  
Vol 21 ◽  
Author(s):  
Wang Wang ◽  
Yueying Yang ◽  
Yang Liu ◽  
Dejuan Sun ◽  
Hua Li ◽  
...  
Keyword(s):  
Biological Activity ◽  
Chemical Modification ◽  
Structural Modification ◽  
Recent Progress ◽  
Biological Activities ◽  
Structural Diversity ◽  
Traditional Chinese Medicines ◽  
Chinese Medicines ◽  
Novel Drugs ◽  
Labdane Diterpenoid

: Natural products have remarkable structural diversity and biological characteristics, providing researchers with more possibilities to develop novel drugs for disease therapeutics. Andrographolide, an ent-labdane diterpenoid from traditional Chinese medicines, Andrographis paniculata, exhibits a broad range of biological activities, which has been a hot area of research for several years. Up to now, lots of its derivatives with multiple bioactivities have been prepared through chemical modification. This review summarizes andrographolide derivatives prepared in the last ten years (2006-present), classifies them by different biological activities, and provides some discussion about the design of novel and potent derivatives.

Recent progress in chemical modification of starch and its applications

RSC Advances ◽  
2015 ◽  
Vol 5 (83) ◽  
pp. 67459-67474 ◽  
Author(s):  
Qing Chen ◽  
Haojie Yu ◽  
Li Wang ◽  
Zain ul Abdin ◽  
Yongsheng Chen ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Chemical Modification ◽  
Recent Progress ◽  
Waste Water Treatment ◽  
Natural Material ◽  
Adsorptive Properties ◽  
Biomedical Fields

Starch has received much attention as a promising natural material both in biomedical fields and waste water treatment due to its unique biological and adsorptive properties.

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