Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Chitin from lobster shell shows great healing and bio-stimulant properties

16.07.2007
Chitin is a polymer very common in nature as part of animals’ and plants’ physical structures. Only cellulose is more abundant than chitin, which makes this compound a highly important renewable resource that can easily be found in arthropods, insects, arachnids, molluscs, fungus and algae.

The fishing industry in Cuba generates great amounts of lobster waste, “a pollutant rich in proteins and chitin”, states Professor Carlos Andrés Peniche Covas, head of the Biopolymers Research Group, from the Biomaterials Centre of the University of Havana. This group is doing research into chitin and chitosan extraction from such waste, in collaboration with the Spanish Centre for Scientific Research (CSIC), the Complutense University in Madrid (Spain) and the Mexican Research Centre for Food and Development.

Prof. Peniche points out that "this work allows for the first accurate and comprehensive results of a university study on chitin and chitosan. The study starts at the extraction of these compounds from polluting waste of the Cuban fishing industry and it goes on to cover these products’ characterisation through traditional techniques and some more innovative ones, the study of their properties, the development of new by-products and the testing of their practical applications in areas useful for this Caribbean country, such as agriculture and biomedicine."

Use in medicine

... more about:
»Chitosan »Cuban »Surgical »healing »properties

These researchers’ work has led to the development of a procedure to obtain surgical materials with great healing and antiseptic properties. "This procedure involves using chitosan to cover surgical threads and lint, into which antibiotics are injected. By doing this, we obtain medical materials with both antimicrobial and healing properties and, as they are covered in a natural polymer, with a higher degree of biocompatibility." Research shows that such properties remained unmodified after sterilisation.

Two new types of surgical thread were produced in collaboration with the Cuban Superior Institute of Military Medicine "Dr. Luis Díaz Soto": Agasut-Q, covered with chitosan (healing properties) and Agasut-QE, covered with chitosan and streptomycin (healing and antimicrobial properties). After preclinical and clinical trials were approved, both surgical thread types were introduced and successfully used in several Cuban hospitals.

Use in agriculture

The study, however, was not restricted to biomedicine. In cooperation with the Cuban National Centre for Agricultural and Livestock Health (CENSA), this group worked in “seed coating to boost farming yields as well as in encapsulation of somatic embryos to design artificial seeds".

In trials, tomato seeds of variety 1-17[140] were coated with chitosan. Under laboratory conditions, treated seeds showed significantly higher growth speed and percentage of successful germination when compared to non-treated seeds.

In Prof. Peniche’s words, the research group concluded that "chitosan works as a bio-stimulant in tomato seed treatment by producing better seed germination and greater plant height, stem thickness and dry mass about a week earlier than usual". Chitosan proved to be a natural polymer with great film-generating capacity, apart from other highly interesting properties: chitosan does not produce polluting substances, it is non-toxic and biocompatible.

Antonio Marín Ruiz | alfa
Further information:
http://dialogo.ugr.es/

Further reports about: Chitosan Cuban Surgical healing properties

More articles from Life Sciences:

nachricht Designer cells: artificial enzyme can activate a gene switch
22.05.2018 | Universität Basel

nachricht Flow of cerebrospinal fluid regulates neural stem cell division
22.05.2018 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Designer cells: artificial enzyme can activate a gene switch

22.05.2018 | Life Sciences

PR of MCC: Carbon removal from atmosphere unavoidable for 1.5 degree target

22.05.2018 | Earth Sciences

Achema 2018: New camera system monitors distillation and helps save energy

22.05.2018 | Trade Fair News

VideoLinks
Science & Research
Overview of more VideoLinks >>>