Cellulosic ethanol is one of the most important biotechnological products to mitigate the consumption of fossil fuels and to increase the use of renewable resources for fuels and chemicals. By performing this ...
Authors: Luana M. Chiarello, Carlos Eduardo A. Ramos, Priscila V. Neves and Luiz P. Ramos
Production of ethanol and biogas from acetic acid-impregnated steam-pretreated wheat straw was investigated. The solid fraction after pretreatment was used at high solids concentrations to generate ethanol by ...
Authors: Elisabeth Joelsson, Dora Dienes, Krisztina Kovacs, Mats Galbe and Ola Wallberg
Nonribosomal peptides are products that fall into the class of secondary metabolites with a diverse properties as toxins, siderophores, pigments, or antibiotics, among others. Unlike other proteins, its biosyn...
Authors: Mario Alberto Martínez-Núñez and Víctor Eric López y López
Rubber seed oil (RSO) derived from rubber seeds is considered a promising plant oil. However, subsequent biodiesel synthesis from RSO was reported to be difficult due to the high acidity of the oil. Detailed s...
Authors: Muhammad Yusuf Abduh, Robert Manurung and Hero Jan Heeres
Castor oil is increasingly becoming an important bio-based raw material for industrial applications. The oil is non-edible and can be extracted from castor seeds from the castor plant belonging to the family E...
Agricultural residues, such as wheat straw, are feasible substrates for ethanol fermentation provided that pentoses and hexoses can be converted efficiently. Separate hydrolysis and cofermentation (SHCF) const...
Authors: Fredrik Nielsen, Guido Zacchi, Mats Galbe and Ola Wallberg
Renewable feedstocks and bio-refinery concepts are the key to a successful transition to a sustainable chemical industry. One conceivable refinery concept is based on pyrolysis oils from biomass, though these ...
Authors: Wolfgang Olbrich, Chiara Boscagli, Klaus Raffelt, Hao Zang, Nicolaus Dahmen and Jörg Sauer
The ACS Green Chemistry Institute Pharmaceutical Roundtable was formed in 2005 to encourage the incorporation of green chemistry techniques into the synthetic pathways of pharmaceuticals. Through this initiati...
Authors: Brian M. Agee, Gene Mullins and Daniel J. Swartling
Valorization of lignin from biofuel production is the key to developing biorefinery technologies for sustainable and economic utilization of lignocellulosic biomass. Here we present isolating lignosulfonate fr...
Authors: Yanlin Qin, Dongjie Yang, Feng Gu, Xuzhao Li, Wenlong Xiong and J. Y. Zhu
Driven by legislation and evolving attitudes towards environmental issues, establishing green solvents for extractions, separations, formulations and reaction chemistry has become an increasingly important are...
Authors: Fergal P. Byrne, Saimeng Jin, Giulia Paggiola, Tabitha H. M. Petchey, James H. Clark, Thomas J. Farmer, Andrew J. Hunt, C. Robert McElroy and James Sherwood
Dilute-acid pretreatment has proven to be a robust means of converting herbaceous feedstock to fermentable sugars. However, it also releases acetic acid, a known fermentation inhibitor, from acetyl groups pres...
Authors: Joseph Shekiro III, Xiaowen Chen, Holly Smith and Melvin P. Tucker
Carbohydrates-rich materials are partly degraded during alkaline kraft pulping into a complex mixture of aliphatic carboxylic acids consisting of α-glucoisosaccharinic acid as one of the main acids. On the oth...
The adequacy of an organism to the environment depends in part on its ability to modify its repertoire of cellular components, such as transporters, regulatory proteins and metabolic enzymes. In this review we...
Authors: Mario Alberto Martínez-Núñez and Ernesto Pérez-Rueda
Enzyme promiscuity is defined as the capability of an enzyme to catalyze a reaction other than the reaction for which it has been specialized. Although, enzyme is known for its specificity, many enzymes are re...
Fatty acids from vegetable oils are useful building blocks for industrial materials. The purpose of this work was to prepare erucic acid with high purity from a vegetable oil. High purity erucic acid is used f...
Authors: Natalia Volkova, Xueyuan Li, Li-Hua Zhu and Patrick Adlercreutz
Protic ionic liquids (PILs) have been suggested as “greener” alternatives to conventional solvents in various industrial applications. In order to assess their suitability for such purposes, a thorough evaluat...
Authors: Joshua E. S. J. Reid, Neil Sullivan, Lorna Swift, Guy A. Hembury, Seishi Shimizu and Adam J. Walker
Alcohols are widely used, and sometimes renewable, reagents but the hydroxyl moiety is a relatively poor leaving group under mild conditions. Direct nucleophilic substitution of alcohols is a desirable reactio...
Authors: Chad F. Petten, Hassan A. Kalviri and Francesca M. Kerton
Miscanthus is a major bioenergy crop in Europe and a potential feedstock for second generation biofuels. The most efficient and realistic method to produce fermentable sugars from lign...
Authors: Zongyuan Zhu, Duncan J. Macquarrie, Rachael Simister, Leonardo D. Gomez and Simon J. McQueen-Mason
The lipase enzyme converts long chain acyltriglycerides into di- and monoglycerides, glycerol and fatty acids. The catalytic site in lipase is situated deep inside the molecule. It is connected through a tunne...
Authors: Mukesh Kumar, Joyeeta Mukherjee, Mau Sinha, Punit Kaur, Sujata Sharma, Munishwar Nath Gupta and Tej Pal Singh
Butadiene sulfone has been employed as a “volatile”, recyclable dipolar, aprotic solvent in the reaction of benzyl halide with metal azides to form benzyl azide (1) and the subsequent reaction of benzyl azide ...
Authors: Yong Huang, Esteban E. Ureña-Benavides, Afrah J. Boigny, Zachary S. Campbell, Fiaz S. Mohammed, Jason S. Fisk, Bruce Holden, Charles A. Eckert, Pamela Pollet and Charles L. Liotta
Deep eutectic solvents (DES) have recently emerged as promising non-hazardous environmentally-friendly solvents. In this respect, the use of DES as media for multi-step enzyme-organocatalysis (C–C bond formati...
Authors: Christoph R Müller, Andreas Rosen and Pablo Domínguez de María
An efficient and high yielding process for the production of impurity free rivaroxaban (1), an anti-coagulant agent using alternate synthon is reported. The key components of the process involve; synthesis of 4-(...
Authors: Anil C Mali, Dattatray G Deshmukh, Divyesh R Joshi, Hitesh D Lad, Priyank I Patel, Vijay J Medhane and Vijayavitthal T Mathad
At present, customers are more conscious about the quality of clothing items. As a result, it becomes more challenging for the manufacturers to maintain the consistent dyeing quality. Unlevelness is generally ...
This review paper presents the current state of the art on maleic acid synthesis from biomass-derived chemicals over homogeneous or heterogeneous catalysts. It is based on the most recent publications on the t...
Authors: Robert Wojcieszak, Francesco Santarelli, Sébastien Paul, Franck Dumeignil, Fabrizio Cavani and Renato V Gonçalves
5-Hydroxymethylfurfural (HMF), an important biobased platform chemical, is accessible by the acid catalysed conversion of biopolymers containing hexoses (cellulose, starch, inulin) and monomeric sugars derived...
Authors: B A Fachri, R M Abdilla, C B Rasrendra and H J Heeres
Biocatalysis is a more sustainable alternative to chemical catalysis. While trying to obtain value added products from a biomass, looking beyond lignocelluloses (e.g.: marine polysaccharides, plant gums) may p...
Authors: Joyeeta Mukherjee and Munishwar Nath Gupta
Fatty acid sugar esters are non-toxic, odorless, non-irritanting surfactants. They can be synthesized by renewable resources and are completely biodegradable in aerobic and anaerobic conditions. Their applicat...
Authors: Felipe K Sutili, Halliny S Ruela, Daniel De O Nogueira, Ivana CR Leal, Leandro SM Miranda and Rodrigo OMA De Souza
In this paper, we report for the first time a one-pot reaction enabling total transformation of lactic acid to acetic acid over a Mo-V-Nb mixed oxide catalyst having an optimal atomic ratio 19:5:1. The mechani...
Authors: Samadhan Lomate, Benjamin Katryniok, Franck Dumeignil and Sébastien Paul
Deconstruction of lignocellulosic biomass using enzymatic catalysis can offer several advantages as compared to chemical catalysis in terms of product selectivity, production cost and sustainability issues. Th...
Amongst all synthetic nucleosides having high potential biological activities, C5-modified pyrimidines and C7-deaza or C8-modified purines have been particularly studied. These main chemical modifications have...
Novel attributes of Locked Nucleic Acid (LNA) makes it preferable over most of the other classes of modified nucleic acid analogues and therefore, it has been extensively explored in different synthetic oligon...
Authors: Vivek K Sharma, Pallavi Rungta, Vipin K Maikhuri and Ashok K Prasad
Carbamate esters represent an important class of organic compounds which find wide application in chemical industry. Classical procedures for the preparation of carbamates are based on the reaction with a very...
Enzyme promiscuity can be classified into substrate promiscuity, condition promiscuity and catalytic promiscuity. Enzyme promiscuity results in far larger ranges of organic compounds which can be obtained by b...
Authors: Benu Arora, Joyeeta Mukherjee and Munishwar Nath Gupta
Biopesticides have the potential to play an important role in sustainable, environmentally safe pest control. A diverse range of biopesticides employ chemical modes of action. This review explores three such b...
Authors: Michelle Hubbard, Russell K Hynes, Martin Erlandson and Karen L Bailey
Testing and further investigation of organosilica microspheres functionalized with aqueous glycerol as solid curing agents for polyurethane (PU) foams confirms the potential of these materials to cure better a...
Authors: Rosaria Ciriminna, Ana C Marques, João C Bordado, Aster de Schrijver and Mario Pagliaro
Demand for biofuels is rapidly growing worldwide as petroleum based fuels are finite reserves. In this context, biodiesel and bioethanol are popular biofuels that are commercially available in various countrie...
With the increasing environmental concerns such as sustainability and end-of-life disposal challenges, materials derived from renewable resources such as nanocellulose have been strongly advocated as potential...
Authors: Sandeep S Nair, JY Zhu, Yulin Deng and Arthur J Ragauskas
Reducing the energy used in an ethanol plant is an important step towards reducing both the cost and environmental impact of the process. Pinch technology was used to analyze the energy utilization and to inve...
Authors: Elisabeth Joelsson, Mats Galbe and Ola Wallberg
Due to the depletion of fossil fuel energy sources, new alternative energy sources are becoming prevalent in our society. Biodiesel has been recognized as an attractive replacement for depleting energy sources...
Authors: Brian M Agee, Gene Mullins and Daniel J Swartling
Cellulosic biomass is a sustainable source for fuels and value-added chemicals, and is available in large quantities. One of the key challenges in biomass processing is associated with the establishment of an ...
Authors: Geisa AL Gonçalves, Yutaro Mori and Noriho Kamiya
Bioethanol production from lignocellulosic biomass, in particular xylose, is currently of great concern, given the abundance of this sugar in the world, because Saccharomyces cerevisiae, which is widely used for ...
L-asparaginases (E.C.3.5.1.1, L-ASNases) are successfully used as anti-neoplastic agents in the chemotherapy of acute lymphoblastic leukemia (ALL) and therefore are of high interest for the medical and scienti...
Authors: Christos S Karamitros and Nikolaos E Labrou
Recent studies have shown that butanol is a potential gasoline replacement that can also be blended in significant quantities with conventional diesel fuel. However, biotechnological production of butanol has ...
Authors: Luiz J Visioli, Heveline Enzweiler, Raquel C Kuhn, Marcio Schwaab and Marcio A Mazutti
In situ preparation of copper nanoparticles from a copper acetate precursor and its application as an efficient catalyst for the selective reduction of aromatic nitro compounds with hydrazine hydrate under combin...
Authors: Huangdi Feng, Yuan Li, Shengji Lin, Erik V Van der Eycken and Gonghua Song
The commercial inulinase obtained from Aspergillus niger was effectively immobilized on alginate-chitosan beads which were hardened with glutaraldehyde. The immobilization conditions were studied using Plackett &...
Authors: Juliano Missau, Amir J Scheid, Edson L Foletto, Sergio L Jahn, Marcio A Mazutti and Raquel C Kuhn
The current higher manufacturing cost of biofuels production from lignocellulosics hinders the commercial process development. Although many approaches for reducing the manufacturing cost of cellulosic biofuel...
Authors: Sasikumar Elumalai, Aicardo Roa- Espinosa, John L Markley and Troy M Runge
Author’s perspective on nano-catalysts with magnetic core is summarized with recent work from his laboratory. Magnetically recyclable nano-catalysts and their use in benign media is an ideal blend for the deve...
Because arable land is limited, land use for food and bioenergy production remains a controversial issue. If food crops can generate high yields and the biomass can also be used effectively for both animal fee...
Authors: Paripok Phitsuwan and Khanok Ratanakhanokchai
Eucalyptus grandis is one of the most abundant biomass from plantation in many parts of the world. The binderless board were manufactured from hydrothermal pretreated fibers of Eucalyptus wood and characterized f...
Authors: Ling-Ping Xiao, Zhi Lin, Wan-Xi Peng, Tong-Qi Yuan, Feng Xu, Nian-Chun Li, Qing-Song Tao, Hang Xiang and Run-Cang Sun
