N2 periodic pulsation process intensification to improve ethanol productivity in solid state fermentation of steam-exploded corn stalk

2021 ◽  
Vol 169 ◽  
pp. 1058-1065
Author(s):  
Lan Wang ◽  
Yaoyao Zhou ◽  
Yang Liu ◽  
Hongzhang Chen
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Process Intensification ◽  
Ethanol Productivity ◽  
Corn Stalk

scholarly journals Transformation of Corn Stalk Residue to Humus-Like Substances during Solid-State Fermentation

2019 ◽  
Vol 11 (23) ◽  
pp. 6771 ◽  
Author(s):  
Yinan Yang ◽  
Lili Wang ◽  
Yifeng Zhang ◽  
Libo Li ◽  
Xuyang Shi ◽  
...  
Keyword(s):  
Humic Acid ◽  
Solid State ◽  
Solid State Fermentation ◽  
Structural Changes ◽  
Positive Impact ◽  
Corn Stalk ◽  
Humus Acid ◽  
Carboxyl Content ◽  
Short Period ◽  
Fermentation Tank

Lignocellulase production from straw fermentation has been widely investigated but the research has neglected to quantify fermentation-derived residue transformation to the humus-like substance (HULIS). To investigate the conversion efficacy of corn stalk residue to HULIS, the amount of HULIS associated with chemical composition and structural changes of humic acid-like substances (HAL) was investigated in a 30 L solid-state fermentation tank during a short period of eight days. The results show that the highest decomposition rate of corn stalk and the highest activity of cellulase, xylanase, and β-glucosidase appeared at the fourth day. At the end of fermenting process, the amount of humic acid-like substances (HAL) and the percentage of HAL in humus acid (PQ value) increased 17.5% and 8.9%, respectively, indicating Trichoderma reesei facilitates the transformation of corn stalk residue to HAL. Fatty acids decreased while aromatic carbon and carboxyl content significantly increased during the ongoing fermentation, which had a positive impact on the HAL thermal stability. The FTIR spectral and thermal analysis revealed an improvement in HAL degrees of condensation, oxidation, and aromatization. The present study suggests that the residue of corn stalks fermented with T. reesei might be a good fertilizer to improve soil characteristics.

Solid state fermentation of the winter savory (Satureja montana L) plant: changes of chemical composition and antimicrobial activity

Planta Medica ◽  
2013 ◽  
Vol 79 (13) ◽  
Author(s):  
G Juodeikiene ◽  
D Cizeikiene ◽  
A Maruška ◽  
E Bartkiene ◽  
L Basinskiene ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Solid State ◽  
Solid State Fermentation ◽  
Satureja Montana

Insights into Potent Therapeutical Antileukemic Agent L-glutaminase Enzyme Under Solid-state Fermentation: A Review

2020 ◽  
Vol 21 (3) ◽  
pp. 211-220 ◽  
Author(s):  
Chandrasai Potla Durthi ◽  
Madhuri Pola ◽  
Satish Babu Rajulapati ◽  
Anand Kishore Kola
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Food Industry ◽  
Energy Requirement ◽  
Production Studies ◽  
Wide Range ◽  
Hybridoma Technology ◽  
Bacteria And Fungi ◽  
The Stability ◽  
Glutaminase Activity

Aim & objective: To review the applications and production studies of reported antileukemic drug L-glutaminase under Solid-state Fermentation (SSF). Overview: An amidohydrolase that gained economic importance because of its wide range of applications in the pharmaceutical industry, as well as the food industry, is L-glutaminase. The medical applications utilized it as an anti-tumor agent as well as an antiretroviral agent. L-glutaminase is employed in the food industry as an acrylamide degradation agent, as a flavor enhancer and for the synthesis of theanine. Another application includes its use in hybridoma technology as a biosensing agent. Because of its diverse applications, scientists are now focusing on enhancing the production and optimization of L-glutaminase from various sources by both Solid-state Fermentation (SSF) and submerged fermentation studies. Of both types of fermentation processes, SSF has gained importance because of its minimal cost and energy requirement. L-glutaminase can be produced by SSF from both bacteria and fungi. Single-factor studies, as well as multi-level optimization studies, were employed to enhance L-glutaminase production. It was concluded that L-glutaminase activity achieved by SSF was 1690 U/g using wheat bran and Bengal gram husk by applying feed-forward artificial neural network and genetic algorithm. The highest L-glutaminase activity achieved under SSF was 3300 U/gds from Bacillus sp., by mixture design. Purification and kinetics studies were also reported to find the molecular weight as well as the stability of L-glutaminase. Conclusion: The current review is focused on the production of L-glutaminase by SSF from both bacteria and fungi. It was concluded from reported literature that optimization studies enhanced L-glutaminase production. Researchers have also confirmed antileukemic and anti-tumor properties of the purified L-glutaminase on various cell lines.

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