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Ozonolysis applied to lignocellulosic biomass
(2018-01-01)
Lignocellulosic biomass produced by several agroindustrial processes has become the most important source of green carbon able to integrate the development of a mode of production based on the biorefinery concept. The ...
Improving cellulosic ethanol production using ozonolysis and acid as a sugarcane biomass pretreatment in mild conditions
(2021-02-01)
The efficiency of unpressurized ozonolysis (O) and acid washing (A) was investigated as a simple pretreatment procedure to depolymerize sugarcane biomass for posterior enzymatic hydrolysis and alcoholic fermentation to ...
Influence of ozonolysis time during sugarcane pretreatment: Effects on the fiber and enzymatic saccharification
(2017-01-01)
Modifications in sugarcane bagasse (SCB) from ozonolysis (O) NaOH (B) and ultrasound (U) (OBU) treatment for cellulosic ethanol production by enzymatic hydrolysis, were evaluated when increasing the exposure time of SCB ...
Enhancing the production of the fermentable sugars from sugarcane straw: A new approach to applying alkaline and ozonolysis pretreatments
(2021-02-01)
The present study, sugarcane straw residue (SCS) was submitted to a combination of mild alkaline pretreatment and ozone cycles in a rotary reactor aiming to obtain fermentable sugars. The SCS exposed to short ozone cycles ...
Soaking and ozonolysis pretreatment of sugarcane straw for the production of fermentable sugars
(2020-03-01)
In the present study, sugarcane straw residue (SCS) is used to generate fermentable sugars. Impregnation in different media and ozonolysis were combined for SCS treatment. The best results were obtained for the basic medium ...
Ozonolysis combined with ultrasound as a pretreatment of sugarcane bagasse: Effect on the enzymatic saccharification and the physical and chemical characteristics of the substrate
(2016-10-01)
Sugarcane bagasse (SCB) was treated in three stages using ozone oxidation (O), washing in an alkaline medium (B) and ultrasonic irradiation (U). The impact of each pretreatment stage on the physical structure of the SCB ...
End-group differentiating ozonolysis of norbornene systems to access to highly substituted cyclopentane rings
(Wiley, 2013-05)
The end-group-differentiating ozonolysis concept is discussed, with an emphasis on norbornene systems. Different remote functional groups in endo positions in norbornene derivatives are able to direct the primary ozonide ...
A new fluorescence method for determination of ozone in ambient air
(Elsevier B.V., 2011-11-01)
A new simple method for determination of ozone in ambient air is presented. The reaction employed is based on the known ozonolysis of indigo dye. The indigotrisulfonate molecule contains one carbon-carbon double bond (C ...
Hexenuronic acid and lignin effects on ozonolysis performance in different reaction pHs
(Soc Brasileira Quimica, 2006-09-01)
The effect of pH on the performance of the ozonolysis stage in pulp production was evaluated for conventional and acid treated brown and oxygen delignified eucalyptus kraft pulps. The objective was to determine separately ...