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Journal articles on the topic 'Lignine – Purification'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Corderi, Sandra, Tom Renders, Kelly Servaes, Karolien Vanbroekhoven, Tony De Roo, and Kathy Elst. "Strategies for the Removal of Polysaccharides from Biorefinery Lignins: Process Optimization and Techno Economic Evaluation." Molecules 26, no. 11 (2021): 3324. http://dx.doi.org/10.3390/molecules26113324.

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The utilization of biorefinery lignins as a renewable resource for the production of bio-based chemicals and materials remain a challenge because of the high polysaccharide content of this variety of lignins. This study provides two simple methods; (i) the alkaline hydrolysis-acid precipitation method and (ii) the acid hydrolysis method for the removal of polysaccharides from polymeric biorefinery lignin samples. Both purification strategies are optimized for two different hardwood hydrolysis lignins, HL1 and HL2, containing 15.1% and 10.1% of polysaccharides, respectively. The treated lignins

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2

Stelitano, Sara, Giuseppe Conte, Alfonso Policicchio, Alfredo Aloise, Giovanni Desiderio, and Raffaele G. Agostino. "Pinecone-Derived Activated Carbons as an Effective Medium for Hydrogen Storage." Energies 13, no. 9 (2020): 2237. http://dx.doi.org/10.3390/en13092237.

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Pinecones, a common biomass waste, has an interesting composition in terms of cellulose and lignine content that makes them excellent precursors in various activated carbon production processes. The synthesized, nanostructured, activated carbon materials show textural properties, a high specific surface area, and a large volume of micropores, which are all features that make them suitable for various applications ranging from the purification of water to energy storage. Amongst them, a very interesting application is hydrogen storage. For this purpose, activated carbon from pinecones were prep

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3

Abejón, Ricardo, Javier Rabadán, Silvia Lanza, Azucena Abejón, Aurora Garea, and Angel Irabien. "Supported Ionic Liquid Membranes for Separation of Lignin Aqueous Solutions." Processes 6, no. 9 (2018): 143. http://dx.doi.org/10.3390/pr6090143.

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Lignin valorization is a key aspect to design sustainable management systems for lignocellulosic biomass. The successful implementation of bio-refineries requires high value added applications for the chemicals derived from lignin. Without effective separation processes, the achievement of this purpose is difficult. Supported ionic liquid membranes can play a relevant role in the separation and purification of lignocellulosic components. This work investigated different supported ionic liquid membranes for selective transport of two different types of technical lignins (Kraft lignin and lignos

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4

Andargie, Mebeaselassie, Maria Vinas, Anna Rathgeb, Evelyn Möller, and Petr Karlovsky. "Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review." Molecules 26, no. 4 (2021): 883. http://dx.doi.org/10.3390/molecules26040883.

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Major lignans of sesame sesamin and sesamolin are benzodioxol--substituted furofurans. Sesamol, sesaminol, its epimers, and episesamin are transformation products found in processed products. Synthetic routes to all lignans are known but only sesamol is synthesized industrially. Biosynthesis of furofuran lignans begins with the dimerization of coniferyl alcohol, followed by the formation of dioxoles, oxidation, and glycosylation. Most genes of the lignan pathway in sesame have been identified but the inheritance of lignan content is poorly understood. Health-promoting properties make lignans a

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5

Alzagameem, Klein, Bergs, et al. "Antimicrobial Activity of Lignin and Lignin-Derived Cellulose and Chitosan Composites Against Selected Pathogenic and Spoilage Microorganisms." Polymers 11, no. 4 (2019): 670. http://dx.doi.org/10.3390/polym11040670.

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The antiradical and antimicrobial activity of lignin and lignin-based films are both of great interest for applications such as food packaging additives. The polyphenolic structure of lignin in addition to the presence of O-containing functional groups is potentially responsible for these activities. This study used DPPH assays to discuss the antiradical activity of HPMC/lignin and HPMC/lignin/chitosan films. The scavenging activity (SA) of both binary (HPMC/lignin) and ternary (HPMC/lignin/chitosan) systems was affected by the percentage of the added lignin: the 5% addition showed the highest

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6

Hemmilä, Venla, Reza Hosseinpourpia, Stergios Adamopoulos, and Arantxa Eceiza. "Characterization of Wood-based Industrial Biorefinery Lignosulfonates and Supercritical Water Hydrolysis Lignin." Waste and Biomass Valorization 11, no. 11 (2019): 5835–45. http://dx.doi.org/10.1007/s12649-019-00878-5.

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Abstract Understanding the properties of any particular biorefinery or pulping residue lignin is crucial when choosing the right lignin for the right end use. In this paper, three different residual lignin types [supercritical water hydrolysis lignin (SCWH), ammonium lignosulfonate (A-LS), and sodium lignosulfonate (S-LS)] were evaluated for their chemical structure, thermal properties and water vapor adsorption behavior. SCWH lignin was found to have a high amount of phenolic hydroxyl groups and the highest amount of β-O-4 linkages. Combined with a low ash content, it shows potential to be us

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7

Marczak-Grzesik, Marta, Stanisław Budzyń, Barbara Tora, Szymon Szufa, Krzysztof Kogut, and Piotr Burmistrz. "Low-Cost Organic Adsorbents for Elemental Mercury Removal from Lignite Flue Gas." Energies 14, no. 8 (2021): 2174. http://dx.doi.org/10.3390/en14082174.

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The research presented by the authors in this paper focused on understanding the behavior of mercury during coal combustion and flue gas purification operations. The goal was to determine the flue gas temperature on the mercury emissions limits for the combustion of lignites in the energy sector. The authors examined the process of sorption of mercury from flue gases using fine-grained organic materials. The main objectives of this study were to recommend a low-cost organic adsorbent such as coke dust (CD), corn straw char (CS-400), brominated corn straw char (CS-400-Br), rubber char (RC-600)

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8

Fang, Wenwen, Marina Alekhina, Olga Ershova, Sami Heikkinen, and Herbert Sixta. "Purification and characterization of kraft lignin." Holzforschung 69, no. 8 (2015): 943–50. http://dx.doi.org/10.1515/hf-2014-0200.

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Abstract To upgrade the utilization of kraft lignin (KL) for high-performance lignin-based materials (e.g., carbon fiber), the purity, molecular mass distribution (MMD), and thermal properties need to be improved and adjusted to target values. Therefore, different methods, such as ultrasonic extraction (UE), solvent extraction, dialysis, and hot water treatment (HWT), were applied for the purification of KL. The chemical and thermal properties of purified lignin have been characterized by nuclear magnetic resonance, Fourier transform infrared, gel permeation chromatography, elemental analysis,

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9

Dai, Lai Xin, Hong Mei Lu, and Li Ping Zhang. "The Purification of Industrial Alkali Lignin with Xylanase." Advanced Materials Research 884-885 (January 2014): 598–602. http://dx.doi.org/10.4028/www.scientific.net/amr.884-885.598.

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The purification of industrial alkali lignin with xylanase was investigated. Then the treated lignin was analyzed by ultraviolet (UV) and Fourier transform infrared spectroscopy (FT-IR). The structure change of lignin-carbohydrate complexes (LCC) in industrial alkali lignin was also studied. The results indicate that the content and the purity of lignin increased. And LCC can be broken by xylanase. This will make the applications and development of using lignin as reactive sites and biodegradability inducing sites more advantageously.

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10

Alzagameem, Abla, Basma Khaldi-Hansen, Dominik Büchner, et al. "Lignocellulosic Biomass as Source for Lignin-Based Environmentally Benign Antioxidants." Molecules 23, no. 10 (2018): 2664. http://dx.doi.org/10.3390/molecules23102664.

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Antioxidant activity is an essential aspect of oxygen-sensitive merchandise and goods, such as food and corresponding packaging, cosmetics, and biomedicine. Technical lignin has not yet been applied as a natural antioxidant, mainly due to the complex heterogeneous structure and polydispersity of lignin. This report presents antioxidant capacity studies completed using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The influence of purification on lignin structure and activity was investigated. The purification procedure showed that double-fold selective extraction is the most efficient (confi

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11

Hanafi, Achmad, Harry Budiman, and Fauzan Aulia. "The Influence of Heat and Two Stages Precipitation in the Process of Natural Polymer Purification from the Byproduct of Bioethanol Process Base on Empty Palm Fruit Bunch." Advanced Materials Research 1123 (August 2015): 177–81. http://dx.doi.org/10.4028/www.scientific.net/amr.1123.177.

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The biopolymer material, lignin, was recovered from the black liquor by acidification of the black liquor using sulfuric acid. Several purification techniques were carried out to produce the high purity of lignin such as gradual precipitation of lignin from black liquor (first stage: precipitation at pH 7, second stage: precipitation at pH 2) and the diluting of crude lignin by sodium hydroxide then followed by re-precipitation at different temperature. Subsequently, the impurities of lignin product resulted from each purification techniques was determined as ash content that analyzed using te

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12

Liu, Zhao, Xue Gang Luo, Yi Li, Ling Li, and Yan Huang. "Extraction of Lignin from Pulping Black Liquor by Organic Acid." Materials Science Forum 620-622 (April 2009): 571–74. http://dx.doi.org/10.4028/www.scientific.net/msf.620-622.571.

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The lignin was extracted and purified by organic acid from pulping black liquor, and the process and influencing factors of extraction and purification were studied. The results of single factor experiments showed that the citric acid which contains three -COOH was suitable to extract and purify lignin. The results of orthogonal experiment demonstrated that the optimal condition of extraction and purification was as follows: citric acid saturated solution, 80°C, pH value of acid evolution endpoint was 3.0. The analysis of FT-IR spectrum, GPC and DSC indicated that the type of lignin extracted

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13

Gao, Si, Ji Zhao, Xing Wang, Yanzhu Guo, Ying Han, and Jinghui Zhou. "Lignin Structure and Solvent Effects on the Selective Removal of Condensed Units and Enrichment of S-Type Lignin." Polymers 10, no. 9 (2018): 967. http://dx.doi.org/10.3390/polym10090967.

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This study focused on the structural differences of lignin after pyridine–acetic acid–water (PAW) and dioxane–acidic water (DAW) purification processes. These structural differences included the S/G ratio, condensed structure, weight-average (MW) molecular weights, β-O-4 linkages and sugar content. The chemical structure of the isolated crude lignin (CL), PAW purified lignin (PPL) and DAW purified lignin (DPL) was elucidated using quantitative 13C NMR, 2D-HSQC NMR spectra, thermogravimetric analysis (TGA), gel permeation chromatography (GPC) and Fourier transform infrared spectroscopy (FTIR).

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14

Cabrera, Yohanna, Andrés Cabrera, Anders Jensen, and Claus Felby. "Purification of Biorefinery Lignin with Alcohols." Journal of Wood Chemistry and Technology 36, no. 5 (2016): 339–52. http://dx.doi.org/10.1080/02773813.2016.1148168.

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15

Liu, Shihong, Lalitendu Das, David N. Blauch, et al. "Statistical design of experiments for production and purification of vanillin and aminophenols from commercial lignin." Green Chemistry 22, no. 12 (2020): 3917–26. http://dx.doi.org/10.1039/d0gc01234c.

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16

Corbett, Derek B., Changyoung Hong, Richard Venditti, Hasan Jameel, and Sunkyu Park. "Hydrophobic resin treatment of hydrothermal autohydrolysate for prebiotic applications." RSC Advances 9, no. 55 (2019): 31819–27. http://dx.doi.org/10.1039/c9ra06018a.

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17

Xu, Feng, Jiachuan Chen, Guihua Yang, et al. "Combined Treatments Consisting of Calcium Hydroxide and Activate Carbon for Purification of Xylo-Oligosaccharides of Pre-Hydrolysis Liquor." Polymers 11, no. 10 (2019): 1558. http://dx.doi.org/10.3390/polym11101558.

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In this study, the effect of a combined treatment consisting of calcium hydroxide (CH) followed by activated carbon (AC) on the purification of hemicellulose in the pre-hydrolysis liquor (PHL) from pulping process has been evaluated. The results show that lignin and furfural of PHL are efficiently removed, and the lignin removal is achieved by forming complexes onto CH particles in the CH treatment process, while acetic acid (acetate) is formed from the hydrolysis of acetyl groups present in the dissolved hemicelluloses in the PHL. The loss of xylo-oligosaccharides (XOS) is moderate, even at a

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18

Frías, I., J. M. Siverio, C. González, J. M. Trujillo, and J. A. Pérez. "Purification of a new peroxidase catalysing the formation of lignan-type compounds." Biochemical Journal 273, no. 1 (1991): 109–13. http://dx.doi.org/10.1042/bj2730109.

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A novel peroxidase that catalyses the dimerization of ferulic acid or caffeic acid via oxidative coupling and formation of beta beta′-linkage to the lignan-type compounds 8,8′-bis(caffeic acid) or 8,8′-bis(ferulic acid) respectively was purified from the leaves of Bupleurum salicifolium. The enzyme, for which the name caffeate peroxidase is proposed, was purified 2700-fold. It is a glycoprotein and has an Mr of 38,000 as determined by gel filtration and SDS/PAGE. The Km values for ferulic acid and caffeic acid were 0.24 mM and for H2O2 0.04 mM with caffeic acid and 0.48 mM with ferulic acid. T

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19

Tang, Hui Ru, Zhen Yu Huang, Ming Ke Shen, Zhi Hua Wang, Jun Hu Zhou, and Ke Fa Cen. "Study on the Feasibility of Recycling Condensate Water of Lignite by Microwave Dehydration Treatment." Advanced Materials Research 1010-1012 (August 2014): 990–95. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.990.

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As a low-rank coal, the high moisture content of lignite need to be dehydrated and refined before combustion. To alleviate the water shortage situation of lignite region, this paper put forward a way of microwave dehydration to recycling the water out of lignite. By detecting the chemical oxygen demand, ammonia nitrogen, total phosphorus, hardness, ions, organic compounds of lignite, it can be concluded that the dehydration ratio of lignite reaches 70~80%, and the water quality as ammonia nitrogen, total phosphorus was close to industrial standard. While the chemical oxygen demand exceeded the

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20

Prado, Raquel, Xabier Erdocia, and Jalel Labidi. "Lignin extraction and purification with ionic liquids." Journal of Chemical Technology & Biotechnology 88, no. 7 (2012): 1248–57. http://dx.doi.org/10.1002/jctb.3965.

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21

Zhou, Li Chun, Qing Wei Ping, Jian Zhang, and Hai Qiang Shi. "Study on Optimizate Isolation and Purification Technology of the Reed Ethanol Lignin." Advanced Materials Research 726-731 (August 2013): 3109–12. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.3109.

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Ethanol pulping is a kind of solvent pulping technology. The utilization of lignin in waste liquor can reduce pollution and increase high value of product. The lignin in the waste liquor could be isolated by adding water in the system after standing for several hours and purified by enzymatic and acidic hydrolysis two-step procedure. Results showed that the optimized purification conditions are as follows, enzyme dosage is 0.004g/g (to oven dry lignin), enzymatic buffer pH is 5, enzymatic hydrolysis temperature is 30°C, and hydrochloric acid concentration of acid hydrolysis is 0.055mol/L. The

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22

Balakshin, Mikhail Yu, Ewellyn A. Capanema, and Hou-min Chang. "MWL fraction with a high concentration of lignin-carbohydrate linkages: Isolation and 2D NMR spectroscopic analysis." Holzforschung 61, no. 1 (2007): 1–7. http://dx.doi.org/10.1515/hf.2007.001.

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Abstract A preparation enriched in lignin-carbohydrate fragments (LCC-AcOH) was isolated in the course of purification of loblolly pine crude milled wood lignin (MWL). The preparation contained approximately equal amounts of lignin and carbohydrates, with high amounts of arabinose and galactose compared to their levels in wood. LCC-AcOH was investigated by 2D 1H-13C (HMQC and HMBC) correlation NMR techniques and quantitative 13C NMR. The HMQC spectra allowed direct detection of phenyl glycoside, ester and benzyl ether lignin-carbohydrates linkages in high amounts. The assignment of these struc

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23

Mardiyati, Yati, Emia Yoseva Tarigan, Pandji Prawisudha, Silvia Mar’atus Shoimah, Raden Reza Rizkiansyah, and Steven Steven. "Binderless, All-Lignin Briquette from Black Liquor Waste: Isolation, Purification, and Characterization." Molecules 26, no. 3 (2021): 650. http://dx.doi.org/10.3390/molecules26030650.

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Lignin isolated from black liquor waste was studied in this research to be utilized as binderless, all-lignin briquette, with a calorific value in the range of 5670–5876 kcal/kg. Isolation of lignin from black liquor was conducted using the acid precipitation method. Sulfuric acid, citric acid, and acetic acid were used to maintain the pH level, which varied from 5 to 2 for the precipitation process. The influence of these isolation conditions on the characteristic of lignin and the properties of the resulted briquette was evaluated through the Klasson method, proximate analysis, ultimate anal

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Klamrassamee, Thepparat, Tana Tana, Navadol Laosiripojana, et al. "Effects of an alkali-acid purification process on the characteristics of eucalyptus lignin fractionated from a MIBK-based organosolv process." RSC Advances 6, no. 95 (2016): 92638–47. http://dx.doi.org/10.1039/c6ra20081h.

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In this study, the effects of an alkali-acid purification process on the properties of eucalyptus lignin isolated from a methyl isobutyl ketone (MIBK)/methanol/water-based organosolv fractionation process were evaluated.

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25

Yang, Lei, Jie Lu, Rui Feng Yang, and Yan Jun Liu. "Properties Change of Black Liquor in Process of Biological Purification Lignin." Advanced Materials Research 622-623 (December 2012): 1749–53. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1749.

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Removing the carbohydrate of black liquor through biological treatment to converted it into alcohol, as to improve the purity of lignin. Through the study we found that the content of lignin and carbohydrate decreased in the biological purification process. The content of lignin in alkaline black liquor decreases 12.9% after fermentation. And in alkaline sodium sulfite black liquor it decreases 6.4%. Compared with black liquor, the content of total sugar in soda black liquor decreased 77.1%. And in alkaline sodium sulfite it decreases 77.8%. The lignin purity of two kinds of black liquor will

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26

Yang, Lei, Rui Feng Yang, Jie Lu, and Yan Jun Liu. "Research to Deal with the Pulping Black Liquor by Using Aspergillus niger." Advanced Materials Research 610-613 (December 2012): 2192–96. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.2192.

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We treat black liquor using Aspergillus niger to extract lignin and to improve the utilization value of pulping black liquor. Results show that: The original black liquor directly to the biological treatment by Aspergillus niger, biological bacteria cannot grow, when reaction liquid pH ≤ 9; Inorganic salt concentration ≤7% (mass ratio); The black liquor load ratio is 20% (mass ratio), the condition of Aspergillus niger growth is good, the ability to produce acid is strong. After treatment of Aspergillus niger, liquid pH decreased to 3, Aspergillus niger changes settling performance of lignin,

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27

Huang, Xingyan, Cornelis F. De Hoop, Jiulong Xie, Chung-Yun Hse, Jinqiu Qi, and Tingxing Hu. "Characterization of Biobased Polyurethane Foams Employing Lignin Fractionated from Microwave Liquefied Switchgrass." International Journal of Polymer Science 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/4207367.

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Lignin samples fractionated from microwave liquefied switchgrass were applied in the preparation of semirigid polyurethane (PU) foams without purification. The objective of this study was to elucidate the influence of lignin in the PU matrix on the morphological, chemical, mechanical, and thermal properties of the PU foams. The scanning electron microscopy (SEM) images revealed that lignin with 5 and 10% content in the PU foams did not influence the cell shape and size. The foam cell size became larger by increasing the lignin content to 15%. Fourier transform infrared spectroscopy (FTIR) indi

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28

Rathour, Ranju K., Vaishali Sharma, Nidhi Rana, Ravi K. Bhatia, and Arvind K. Bhatt. "Bioremediation of Simulated Textile Effluent by an Efficient Bio-catalyst Purified from a Novel Pseudomonas fluorescence LiP-RL5." Current Chemical Biology 14, no. 2 (2020): 128–39. http://dx.doi.org/10.2174/2212796814666200406100247.

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Background: Microbial degradation of highly stable textile dyes, using lignin peroxidase, is an eco-friendly, less expensive and much advantageous in comparison to the chemical method. Objective: Biodegradation potential of lignin peroxidase (LiP), from Pseudomonas fluorescens LiP-RL5, was enhanced after optimization and purification so as to use it as a potential bioresource for the treatment of textile effluent. Methods: LiP producing bacterial isolate was primarily screened by methylene blue assay followed by LiP assay. The standard protocol was used for purification of lignin peroxidase an

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29

Gilarranz, M. A., F. Rodriguez, M. Oliet, and J. A. Revenga. "Acid Precipitation and Purification of Wheat Straw Lignin." Separation Science and Technology 33, no. 9 (1998): 1359–77. http://dx.doi.org/10.1080/01496399808544988.

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30

Johnson, K. G., and R. P. Overend. "Lignin-Carbohydrate Complexes fromPopulus deltoides.I. Purification and Characterization." Holzforschung 45, no. 6 (1991): 469–75. http://dx.doi.org/10.1515/hfsg.1991.45.6.469.

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31

Bu, Lingxi, Jie Lu, and Ruifeng Yang. "Purification of lignin in black liquor by biotechnology." Journal of Biotechnology 150 (November 2010): 535. http://dx.doi.org/10.1016/j.jbiotec.2010.09.873.

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32

Oriez, Vincent, Jérôme Peydecastaing, and Pierre-Yves Pontalier. "Lignocellulosic Biomass Fractionation by Mineral Acids and Resulting Extract Purification Processes: Conditions, Yields, and Purities." Molecules 24, no. 23 (2019): 4273. http://dx.doi.org/10.3390/molecules24234273.

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Fractionation of lignocellulose is a fundamental step in the valorization of cellulose, hemicelluloses, and lignin to produce various sustainable fuels and chemicals. Mineral acid fractionation is one of the most applied process and leads to the solubilization and hydrolysis of cellulose and hemicelluloses, whereas most of the lignin remains insoluble and can be separated from the extract. The obtained monomeric sugars in the acid extract are in solution with salts, sugar degradation products, and phenolic molecules. Downstream processing is required to purify the sugars and further valorize t

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33

Aslanzadeh, Samira, Behzad Ahvazi, Yaman Boluk, and Cagri Ayranci. "Carbon Fiber Production from Electrospun Sulfur Free Softwood Lignin Precursors." Journal of Engineered Fibers and Fabrics 12, no. 4 (2017): 155892501701200. http://dx.doi.org/10.1177/155892501701200405.

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In this study, a sulfur-free softwood lignin (SFSL) was electrospun to form bead-free fibers. The fibers were evaluated as potential precursors for carbon fiber production. Higher heating rates of thermostabilization caused afused fiber morphology. The lignin purification process also affected the quality of the SFSL-based carbon fibers. Therefore, the yield, morphological characteristics, structural characteristics, electrical conductivity and mechanical properties of the carbon fibers were evaluated. At higher carbonization temperatures crystalline carbon fibers were formed. As a result, as

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34

Beisl, Stefan, Johannes Adamcyk, and Anton Friedl. "Direct Precipitation of Lignin Nanoparticles from Wheat Straw Organosolv Liquors Using a Static Mixer." Molecules 25, no. 6 (2020): 1388. http://dx.doi.org/10.3390/molecules25061388.

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Micro- and nanosize lignin shows improved properties compared to standard lignin available today and has been gaining interest in recent years. Lignin is the largest renewable resource with an aromatic skeleton on earth but it is used for relatively low-value applications. Lignin in micro- to nanoscale; however, could facilitate rather valuable applications. Current production methods consume high amounts of solvents for purification and precipitation. The process investigated in this work uses the direct precipitation of lignin nanoparticles from organosolv pretreatment extract in a static mi

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Yang, Huanlei, Jinhua Yan, and Jun Li. "Preliminary study on integrated production of ethanol and lignin from bagasse pulp waste." BioResources 15, no. 4 (2020): 8161–74. http://dx.doi.org/10.15376/biores.15.4.8161-8174.

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Bagasse pulp waste (BPW) is a material generated from the depithing of sugarcane bagasse stems prior to pulping. It was subjected to a modified oxygen delignification or ammonia catalytic steam explosion (AE) pretreatment for delignification and retaining carbohydrates of raw materials, followed by simultaneous saccharification and co-fermentation (SSCF) to ethanol. Based on this process, an environmentally sustainable two-stage process for lignin purification was employed to obtain nontoxic “green lignin”. The results indicated that both pretreatment methods, particularly AE, had outstanding

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Lankinen, V. P., M. M. Inkeröinen, J. Pellinen, and A. I. Hatakka. "The Onset of Lignin-Modifying Enzymes, Decrease of AOX and Color Removal by White-Rot Fungi Grown on Bleach Plant Effluents." Water Science and Technology 24, no. 3-4 (1991): 189–98. http://dx.doi.org/10.2166/wst.1991.0475.

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Decrease of adsorbable organic chlorine (AOX) is becoming the most important criterion for the efficiency of pulp mill effluent treatment in the 1990s. Two methods, designated MYCOR and MYCOPOR which utilize the white-rot fungus Phanerochaete chrysosporium have earlier been developed for the color removal of pulp mill effluents, but the processes have also a capacity to decrease the amount of chlorinated organic compounds. Lignin peroxidases (ligninases) produced by P. chrvsosporium may dechlorinate chlorinated phenols. In this work possibilities to use selected white-rot fungi in the treatmen

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Евстафьев (Evstaf'ev), Сергей (Sergei) Николаевич (Nikolaevich), and Куанг Кыонг (Kuang Kyong) Хоанг (Khoang). "ULTRASONIC TREATMENT WHEAT STRAW IN THE ENVIRONMENT 1-BUTYL-3-METHYLIMIDAZOLIUM CHLORIDE." chemistry of plant raw material, no. 1 (November 23, 2017): 5–12. http://dx.doi.org/10.14258/jcprm.2018012218.

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The development of environmentally safe technology for processing lignocellulosic raw materials with the separation of polysaccharide and lignin fractions for subsequent use is an actual problem, a solution of which is possible when using ionic liquids as a solvent. To intensify the processing process, the possibility of using ultrasonic irradiation in the environment of 1-butyl-3-methylimidazolium chloride was studied. The results of the research of the influence of ultrasound power, temperature and processing time on the yield of fractions and the degree of purification of cellulose from imp

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Syed Azhar, S. A. R., and Dong June Ahn. "Purification of Monomers Leads to High-Quality Lignin Macromonomers." IOP Conference Series: Materials Science and Engineering 548 (August 27, 2019): 012021. http://dx.doi.org/10.1088/1757-899x/548/1/012021.

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Yadav, Meera, Pratibha Yadav, and Kapil Deo Singh Yadav. "Purification and characterization of lignin peroxidase fromLoweporus lividusMTCC-1178." Engineering in Life Sciences 9, no. 2 (2009): 124–29. http://dx.doi.org/10.1002/elsc.200800084.

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Delila, Liling, Evi Susanti, and Eli Hendrik Sanjaya. "Isolation and Screening of Indigenous Fungus Producing Lignin Peroxidase from the Cocoa Plantation in Sepawon Kediri Regency Indonesia." KnE Life Sciences 3, no. 5 (2017): 131. http://dx.doi.org/10.18502/kls.v3i5.985.

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<p class="Els-Abstract-text">The aim of this research is to obtain indigenous fungus producing lignin peroxidase from the Cocoa Plantation in Sepawon Kediri Regency, Indonesia. Isolation was done using Minimum Salt Medium alkali lignin (MSM - L), purification was performed using monospore technique, lignin peroxidase activity was screened by agar medium containing methylene blue, and microscopic morphology of fungi was studied using slide culture technique. Five isolates of fungus were obtained and three isolates of fungus with different morphology were purified. The screening results sh

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Branco, Diana G., Joana R. Campos, Luís Cabrita, and Dmitry V. Evtuguin. "Structural features of macromolecular components of cork from Quercus suber L." Holzforschung 74, no. 6 (2020): 625–33. http://dx.doi.org/10.1515/hf-2019-0271.

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AbstractThe structural features of macromolecular components of cork (suberin, lignin, cellulose and hemicelluloses) from Quercus suber L. used for the production of stoppers were assessed after their isolation and purification. Suberin is the major component of cork (ca. 44%) and is constituted mainly by hydroxy fatty acids (C14–C26). Cork lignin was found to be highly condensed (16.2%) and revealed a syringyl:guaiacyl:p-hydroxyphenyl (S:G:H) ratio of 26:71:3 with predominant β-O-4′ (0.38%), β-5′, β-β and tetrahydrofuran (THF) type (totally ca. 27%) structures. Cork lignin also has a remarkab

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Fadhilah, Lailatul, Jasmidi Jasmidi, Rini Selly, and Moondra Zubir. "Water Purification Process Uses Adsorbents From Natural." Indonesian Journal of Chemical Science and Technology (IJCST) 4, no. 1 (2021): 42. http://dx.doi.org/10.24114/ijcst.v4i1.23095.

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Adsorbent is an adsorption that is used to absorb various pollutants. Adsorbents can be used from natural materials. Natural ingredients that can be used are oil palm empty bunches. Oil palm empty bunches are a carbon-rich material that is getting new research interest in adsorption because of its abundance and properties. Oil palm empty bunches contain carbon, nitrogen, hydrogen, oxygen, sulfur, lignin, hemicellulose, and cellulose. Oil palm empty bunches are used as adsorbent for water saturation.

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Oriez, Vincent, Jérôme Peydecastaing, and Pierre-Yves Pontalier. "Lignocellulosic Biomass Mild Alkaline Fractionation and Resulting Extract Purification Processes: Conditions, Yields, and Purities." Clean Technologies 2, no. 1 (2020): 91–115. http://dx.doi.org/10.3390/cleantechnol2010007.

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Fractionation of lignocellulose is a fundamental step in the valorization of cellulose, hemicelluloses, and lignin to produce various sustainable fuels, materials and chemicals. Strong alkaline fractionation is one of the most applied processes since the paper industry has been using it for more than a century, and the mineral acid fractionation process is currently the most applied for the production of cellulosic ethanol. However, in the last decade, mild alkaline fractionation has been becoming increasingly widespread in the frame of cellulosic ethanol biorefineries. It leads to the solubil

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Otromke, Malte, Lara Theiss, Anna Wunsch, Alexander Susdorf, and Thomas Aicher. "Selective and controllable purification of monomeric lignin model compounds via aqueous phase reforming." Green Chemistry 17, no. 6 (2015): 3621–31. http://dx.doi.org/10.1039/c5gc00410a.

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Mbotchak, Laurie, Clara Le Morvan, Khanh Linh Duong, Brigitte Rousseau, Martine Tessier, and Alain Fradet. "Purification, Structural Characterization, and Modification of Organosolv Wheat Straw Lignin." Journal of Agricultural and Food Chemistry 63, no. 21 (2015): 5178–88. http://dx.doi.org/10.1021/acs.jafc.5b02071.

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Bello, Fatai, and Louise Horsfall. "Fungal and bacterial lignin degraders: Purification, characterisation and structural investigation." New Biotechnology 33 (July 2016): S203. http://dx.doi.org/10.1016/j.nbt.2016.06.1421.

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Yadav, M., S. K. Singh, and K. D. S. Yadav. "Purification and Characterization of Lignin Peroxidase fromPleurotus sajor cajuMTCC–141." Journal of Wood Chemistry and Technology 29, no. 1 (2009): 59–73. http://dx.doi.org/10.1080/02773810802596489.

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Yang, JinShui, HongLi Yuan, HeXiang Wang, and WenXin Chen. "Purification and characterization of lignin peroxidases from Penicillium decumbens P6." World Journal of Microbiology and Biotechnology 21, no. 4 (2005): 435–40. http://dx.doi.org/10.1007/s11274-004-1876-2.

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Singh, R., S. Singh, K. D. Trimukhe, et al. "Lignin–carbohydrate complexes from sugarcane bagasse: Preparation, purification, and characterization." Carbohydrate Polymers 62, no. 1 (2005): 57–66. http://dx.doi.org/10.1016/j.carbpol.2005.07.011.

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Wahlström, Ronny, Anna Kalliola, Juha Heikkinen, Hanna Kyllönen, and Tarja Tamminen. "Lignin cationization with glycidyltrimethylammonium chloride aiming at water purification applications." Industrial Crops and Products 104 (October 2017): 188–94. http://dx.doi.org/10.1016/j.indcrop.2017.04.026.

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