Know more

Our use of cookies

Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

Ghostery is available here for free: https://www.ghostery.com/fr/products/

You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site: http://www.youronlinechoices.com/fr/controler-ses-cookies/, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

Cookie type

Means of blocking

Analytical and performance cookies

Realytics
Google Analytics
Spoteffects
Optimizely

Targeted advertising cookies

DoubleClick
Mediarithmics

The following types of cookies may be used on our websites:

Mandatory cookies

Functional cookies

Social media and advertising cookies

These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at cil-dpo@inra.fr or by post at:

INRA
24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal University of Reims Champagne-Ardenne

Fractionation of AgroResources and Environment lab

06 February 2019 - Lignin at the nanoscale: impact on recalcitrance

06 February 2019 - Lignin at the nanoscale: impact on recalcitrance
Lignin is a major component of lignocellulose which makes the plant cell walls and is considered as a relevant feedstock for making biofuels, chemicals and renewable materials. But lignin limits the activity of enzymes by making some pore entanglements thus limiting access to polysaccharides and by interacting non-productively with them.

In the Lignoprog project funded by ANR, one of the goals was to understand how structure of lignin at the nanoscale could impact enzymatic hydrolysis. Thanks to a strong collaboration between the Laboratory for Research in Nanosciences from URCA and FARE, lignocellulosic model films have been prepared with variable contents in lignin. A protocol has been developed for dynamically following over time by atomic force microscopy the structural modifications of the films during hydrolysis. Importantly, quantification of the images has been carried out, highlighting a correlation between hydrolysis efficiency and lignin. In addition to this important experimental setup, results obtained show that lignin distribution is more important to consider than lignin content to explain recalcitrance, such an information could only be obtained by nanoscale analysis.

Read: Lambert E, Aguié-Béghin V, Dessaint D, Foulon L, Chabbert B, Paës G, Molinari M. Real time and quantitative imaging of lignocellulosic films hydrolysis by Atomic Force Microscopy reveals lignin recalcitrance at nanoscale. Biomacromolecules 2019, 20, 515-527. DOI

Contact: Dr Gabriel Paës, gabriel.paes@inra.fr