Determination of lignin in lignocellulosic biomass v1 (protocols.io.bumtnu6n)

protocols.io ◽  
2021 ◽  
Author(s):  
Magdiel ML
Keyword(s):  
Lignocellulosic Biomass

scholarly journals Rapid and accurate determination of the lignin content of lignocellulosic biomass by solid-state NMR

Fuel ◽  
2015 ◽  
Vol 141 ◽  
pp. 39-45 ◽  
Author(s):  
Li Fu ◽  
Scott A. McCallum ◽  
Jianjun Miao ◽  
Courtney Hart ◽  
Gregory J. Tudryn ◽  
...  
Keyword(s):  
Solid State ◽  
Lignocellulosic Biomass ◽  
Solid State Nmr ◽  
Lignin Content ◽  
Accurate Determination

Determination of cellulose derived 5-hydroxymethyl-2-furfural content in lignocellulosic biomass hydrolysate by headspace gas chromatography

Cellulose ◽  
2018 ◽  
Vol 25 (7) ◽  
pp. 3843-3851 ◽  
Author(s):  
Hui-Chao Hu ◽  
Yu Zhang ◽  
Tong Zeng ◽  
Weining Zhou ◽  
Lihui Chen ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Lignocellulosic Biomass ◽  
Headspace Gas Chromatography ◽  
Biomass Hydrolysate ◽  
Headspace Gas

scholarly journals Chromatographic analysis of bio-oil formed in fast pyrolysis of lignocellulosic biomass

2020 ◽  
Vol 39 (1) ◽  
pp. 65-77
Author(s):  
Jacek Grams
Keyword(s):  
Lignocellulosic Biomass ◽  
Complex Structure ◽  
Fast Pyrolysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Pyrolysis Gas ◽  
Lignocellulosic Feedstock ◽  
Temperature Decomposition ◽  
Bio Oil ◽  
Gc X Gc

AbstractFast pyrolysis of lignocellulosic biomass is one of the most promising methods of the production of renewable fuels. However, an optimization of the conditions of bio-oil production is not possible without comprehensive analysis of the composition of formed products. There are several methods for the determination of distribution of products formed during thermal decomposition of biomass with chromatography being the most versatile among them. Although, due to the complex structure of bio-oil (presence of hundreds chemical compounds with different chemical character), an interpretation of the obtained chromatograms is not an easy task. Therefore, the aim of this work is to present an application of different chromatographic methods to the analysis of the composition of the mixture of products formed in high temperature decomposition of lignocellulosic feedstock. It includes pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), two dimensional gas (GC x GC) or liquid chromatography (LC x LC) and initial fractionation of bio-oil components. Moreover, the problems connected with the analysis of bio-oils formed with the use of various fast pyrolysis reactors and capabilities of multivariate analysis are discussed.

scholarly journals Determination of Carbohydrate Composition in Lignocellulosic Biomass for Biofuel Production

2018 ◽  
Author(s):  
Yengkhom Disco Singh
Keyword(s):  
Infrared Spectroscopy ◽  
Lignocellulosic Biomass ◽  
Near Infrared ◽  
Plant Biomass ◽  
Biofuel Production ◽  
Carbohydrate Composition ◽  
Simple Method ◽  
Main Factors ◽  
Estimation System

Carbohydrate composition of lignocellulosic biomass is one of the main factors for production of biofuel from the plant biomass. Various methods like Thermogravimetric analysis (TGA), near infrared spectroscopy (NIR) often used in determination of polysaccharide component of the plant biomass. However, used of such tools is based on the prediction and very costly. This paper discussed about the determination of carbohydrate composition (cellulose, hemicellulose and lignin) using the automatic fibre estimation system. The protocol was developed for the estimation of cellulose, hemicellulose and lignin component of lignocellulosic biomass. This protocol explains a simple method to estimate the polysaccharide component of lignocellulosic biomass. This protocol can be used not only lignocellulosic biomass but also for other hardwood biomass. The advantages and techniques, procedures are presented below.

Determination of porosity of lignocellulosic biomass before and after pretreatment by using Simons’ stain and NMR techniques

2013 ◽  
Vol 144 ◽  
pp. 467-476 ◽  
Author(s):  
Xianzhi Meng ◽  
Marcus Foston ◽  
Johannes Leisen ◽  
Jaclyn DeMartini ◽  
Charles E. Wyman ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Before And After ◽  
Nmr Techniques

Galactic orbits of stars

1966 ◽  
Vol 25 ◽  
pp. 93-97
Author(s):  
Richard Woolley
Keyword(s):  
Globular Cluster ◽  
Potential Field ◽  
High Velocity ◽  
Velocity Vector ◽  
Variable Stars ◽  
The Sun ◽  
Proper Motions ◽  
Rr Lyrae ◽  
The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

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