High sugar yields from sugarcane (Saccharum officinarum) bagasse using low-temperature aqueous ammonia pretreatment and laccase-mediator assisted enzymatic hydrolysis

2018 ◽  
Vol 111 ◽  
pp. 673-683 ◽  
Author(s):  
Kanak Raj ◽  
Chandraraj Krishnan
Keyword(s):  
Enzymatic Hydrolysis ◽  
Low Temperature ◽  
Aqueous Ammonia ◽  
Saccharum Officinarum ◽  
High Sugar ◽  
Ammonia Pretreatment

Evaluation of aqueous ammonia pretreatment for enzymatic hydrolysis of different fractions of bamboo shoot and mature bamboo

2014 ◽  
Vol 173 ◽  
pp. 198-206 ◽  
Author(s):  
Zhong Yang ◽  
Maomao Zhang ◽  
Donglin Xin ◽  
Jingfeng Wang ◽  
Junhua Zhang
Keyword(s):  
Enzymatic Hydrolysis ◽  
Aqueous Ammonia ◽  
Bamboo Shoot ◽  
Ammonia Pretreatment ◽  
Hydrolysis Of

scholarly journals Effects of soaking aqueous ammonia pretreatment on selected properties and enzymatic hydrolysis of poplar (Populus trichocarpa) wood

BioResources ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. 5618-5627
Author(s):  
Florentyna Akus-Szylberg ◽  
Andrzej Antczak ◽  
Janusz Zawadzki
Keyword(s):  
Enzymatic Hydrolysis ◽  
Aqueous Ammonia ◽  
Lignin Content ◽  
Populus Trichocarpa ◽  
Ammonia Concentration ◽  
Ammonia Solution ◽  
Degree Of Polymerization ◽  
Glucose Content ◽  
Two Temperatures ◽  
Ammonia Pretreatment

Effects of soaking aqueous ammonia pretreatment were considered for fast-growing poplar wood in the context of bioethanol production. The milled Populus trichocarpa wood with a particle size of 0.43 to 1.02 mm was pretreated at two temperatures (50 °C and 90 °C) and two concentrations of ammonia solution (15% and 20% w/w) for 20 h. The lignin content decreased by 46% in the biomass treated with the most severe conditions. After enzymatic hydrolysis, the sugar yield was analysed, and the results indicated that increased temperature and ammonia concentration during pretreatment resulted in higher glucose content. Additionally, changes in the degree of polymerization and available pore volume were investigated.

Effects of soaking aqueous ammonia pretreatment on chemical composition and enzymatic hydrolysis of corn stover

2021 ◽  
Vol 115 ◽  
pp. 29-36
Author(s):  
Florentyna Akus-Szylberg ◽  
Andrzej Antczak ◽  
Janusz Zawadzki
Keyword(s):  
Chemical Composition ◽  
Enzymatic Hydrolysis ◽  
Corn Stover ◽  
High Performance ◽  
Aqueous Ammonia ◽  
Ammonia Solution ◽  
Raw Material ◽  
Different Temperatures ◽  
Ammonia Pretreatment ◽  
Hydrolysis Of

Effects of soaking aqueous ammonia pretreatment on chemical composition and enzymatic hydrolysis of corn stover. The aim of this research was to investigate the effect of applying two different temperatures of the soaking aqueous ammonia treatment on the chemical composition and enzymatic hydrolysis yield of the corn stover. Native corn stover as well as solid fractions after 20 h of alkali pretreatment performed at 15% ammonia solution and at 50 °C or 90 °C were analysed in terms of cellulose, holocellulose, lignin and extractives content. Both untreated and treated samples were subjected to the enzymatic hydrolysis and hydrolysates were examined with a high performance liquid chromatography (HPLC). Results indicated a significant development of enzymatic digestibility of the SAA treated biomass. Furthermore, a 38.7% and a 68.9% delignification levels in the biomass treated with ammonia at respectively 50 °C and 90 °C process comparing to the raw material were achieved.

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