REALATED ARTICLES

Click on a word or phrase in our Tag Cloud and see all related articles listed below.

 

Current tag:

Enzymatic Hydrolysis of Corn Stover: Improved pre-treatment with Trametes Hirsuta yj9

Chinese Academy of Sciences Chengdu Institute of Biology

·    Trametes hirsuta yj9 preferentially degrade lignin over cellulose
·    Laccase is the major ligninolytic enzyme
·    Sugar yields of pretreated corn stover were significantly increased
·    The structure of pretreated corn stover showed significant changes
·    Sugar yields were inversely proportional to the lignin contents.

17-01-2012. Corn stover, mainly composed of lignin, cellulose and hemicellulose, is one of the most abundant agricultural byproducts in China. Approximately 200 million tons of corn stover is produced in China per year. Most of the corn stover is burned or directly discarded resulting in resource waste and environment pollution. Lignocellulose can be enzymatically hydrolyzed and transformed into important biofuels such as ethanol and butanol. The process can transform 30% energy and reduce environmental pollution. So in their study, Prof. LIU Xiaofeng's team from CAS Chengdu Institute of Biology isolated a newly Trametes hirsuta yj9 to pretreat corn stover in order to enhance enzymatic digestibility.


They demonstrated that T. hirsuta yj9 preferentially degraded lignin to be as high as 71.49% after 42-day pretreatment. Laccase and xylanase was the major ligninolytic and hydrolytic enzyme, respectively and filter paper activity (FPA) increased gradually with prolonged pretreatment time. Meanwhile, researchers found that sugar yields increased significantly after pretreatment with T. hirsuta yj9, reaching an enzymatic digestibility of 73.99% after 42 days of pretreatment. Scanning electron microscopy (SEM) showed significant structural changes in pretreated corn stover, the surface of pretreated corn stover became increasingly coarse, the gaps between cellulose fibers were visible, and many pores were developed.


Researchers also demonstrated  correlation analysis showed that sugar yields were inversely proportional to the lignin contents, less related to cellulose and hemicellulose contents. LIU’s research got supports from Chinese Academy of Science,  National High Technology Research and Development Program of China.
Source: Chinese Academy of Sciences

References
Feng-hui Sun FH, Li J, Yuan YX, Yan ZY, Liu XF (2011): Effect of biological pretreatment with Trametes hirsuta yj9 on enzymatic hydrolysis of corn stover. International Biodeterioration and Biodegradation: October: 931-938.

 

 

Related Articles

Systems Biology Applied

The Need of Systems Theory Thinking in Using Technologies and Pitfalls of Some Concepts

Plant Genetic Engineering: ”It’s not as simple as Yes or No !”

Nobel Prize winner Prof. Christiane Nüsslein-Volhard Warns of GMO-populism and researchers not standing up

Plants are Nature’s Best Chemists

On application fields from tyres, functional food, to platform chemicals

Clariant & Süd-Chemie: “rather limited synergies”

Dr. Günter von Au, Designated Board Member Clariant AG and CEO Süd-Chemie AG

Prospects of Enzyme Engineering and Biofuels Markets in Russia

Vladimir O. Popov, Director Bach Institute of Biochemistry, Moscow

Extraction of Nutraceutical Components from Algae Using Supercritical CO2

Novamont on Biodegradable Plastics at EP (in Italian)

Plastiche Biodegradabili e compostabili Mostrato da Novamont al Parlamento Europeo

22-09-2011. Nell’ambito della Conferenza organizzata dalla European Bioplastics Association Novamont ha presentato oggi al Parlamento Europeo una relazione sul contributo dell'industria delle bioplastiche al perseguimento di un'economia europea sostenibile e sul ruolo essenziale dei legislatori europei nel favorirne uno sviluppo sempre maggiore. Nel suo intervento Francesco Degli Innocenti, Responsabile Ecologia e Comunicazione Ambientale Novamont e membro del Board di European Bioplastics, ha sottolineato l’importanza della Roadmap sull'Uso Efficiente delle Risorse recentemente presentata dalla Commissione Europea, roadmap che evidenzia la necessità di sostenere la diffusione di plastiche biodegradabili e la promozione di processi virtuosi nel campo della chimica verde.


L'industria delle bioplastiche biodegradabili e l'approccio sistemico di Novamont, che sostiene una minimizzazione dell'impatto ambientale su tutta la catena produttiva (dal packaging alle colture agricole) ed un intelligente uso delle risorse naturali, sono un caso di studio di messa in atto di una vera e propria “bio-based econonomy” che non ha confronti. “Per permettere una maggiore diffusione di questo approccio sarà fondamentale il sostegno dei legislatori europei, così da far diventare l'Europa un'economia sostenibile inclusiva e competitiva e permettere il perseguimento degli obiettivi prefissati della Strategia 2020”, ha concluso Degli Innocenti.


Novamont SpA, controllata da Banca Intesa ed Investitori Associati, è leader nella produzione di bioplastiche ricavate da materie prime rinnovabili di origine agricola. Con 170 dipendenti (il 30% dei quali è dedicato alla R&D), ha chiuso il 2010 con un turnover di 90 milioni di euro, destinando oltre il 7% del fatturato alla ricerca e sviluppo; detiene un portafoglio brevetti che comprende 90 famiglie brevettuali e 800 depositi internazionali.

 

__________________

Disclaimer: You agree that  B2Bioworld is not responsible and will not be held liable for any third party content on its sites or any third-party content, products or services available on other web sites accessed through links from B2Bioworld sites. Links to third-party sites are for your convenience only, and their inclusion on   B2Bioworld's sites does not imply any endorsement, guarantee, warranty or representation by  B2Bioworld.

 

___________________


Related:

Genomatica and Novamont Joint Venture for Bio-Butanediol


 

What Future for the Chemicals Industry?

tl_files/images/images_we_own/b2bio content/photo library/editorial content/000073_091005_Marcinowski_wk_CMS.gif September 2009. The current recession, arguably the deepest since the Great Depression exactly 80 years ago, has caused many in the chemical industry to ponder the direction of their businesses. In an exclusive interview with B2Bioworld Stefan Marcinowski, Member of the Board of Executive Directors of BASF SE, is examining the future of the chemical industry.

 

 

Related Articles

Resolving the Innovation Paradox

Dr. Günter von Au, Designated Board Member Clariant AG and CEO Süd-Chemie AG

UK Chemical Industries’ Lessons From the Recession

John Saul, past President of the British Chemical Industries Association

 

Turkish Chemicals Industry: Opportunities and Threats

Timur Erk, President of TKSD, the Turkish Chemical Industry Association

 

Fighting Crisis in the Chemicals Industry!

Dott. Giorgio Squinzi, MAPEI SpA, FEDERCHIMICA

 

Plant Genetic Engineering: ”It’s not as simple as Yes or No !”

Nobel Prize winner Prof. Christiane Nüsslein-Volhard Warns of GMO-populism and researchers not standing up

REACH in Practice

Richard Taylor, Global Manager for OGC Tech Support & REACH, SGS SA



If you would like to read more, please proceed to the download section.

Important: After pressing "Buy this article (PayPal)" below you will be taken to the PaypPal checkout page. There you must press the orange "Return To BioBusinessMedia" button in order to download your article.
In buying this article you agree with our Terms & Conditions which you can consult here.

exclusive interview, 3 pages

Swiss Biotech and Chemicals Industry Team Up for Industrial Biotech

16-11-2009. It might be a late start to exploit opportunities of “White Biotechnology”, but it is driven by concerns about weakened competitiveness of the Swiss chemicals industry outside pharma. Moreover, what may appear as one of those familiar biotech success stories is a winding road with many stumbling blocks, Switzerland being no exemption. Read details from a stakeholder meeting at Basel.

 

(C) Wolf G Kroner(C) Wolf G Kroner(C) Wolf G Kroner



If you would like to read more, please proceed to the download section.

Important: After pressing "Buy this article (PayPal)" below you will be taken to the PaypPal checkout page. There you must press the orange "Return To BioBusinessMedia" button in order to download your article.
In buying this article you agree with our Terms & Conditions which you can consult here.

onsite report, 3 pages

Top 10 Tags

All Tags (2094)