A Review on Bacterial Contribution to Lignocellulose Breakdown into Useful Bio-Products

Chukwuma, Ogechukwu Bose; Rafatullah, Mohd; Tajarudin, Husnul Azan; Ismail, Norli

doi:10.3390/ijerph18116001

Cited by 59 publications

(29 citation statements)

References 173 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In these hypothetical bioreactors, hemicellulose (as xylan and pectin) would be first targeted, releasing monomers and oligomers that could be further metabolized in branched pathways. Subsequently, cellulose and lignin would be degraded and/or modified, deriving value-added polysaccharides and lignin derivatives ( Alessi et al, 2018 ; Moraes et al, 2018 ; Chukwuma et al, 2020 , 2021 ). Whether microbial multitrophic interactions occur in insect fungiculture, investigating them could unveil the mechanisms to modify and control the microbiome function.…”

Section: What Biotechnology Could Learn From Insect Fungiculture?mentioning

confidence: 99%

Lessons From Insect Fungiculture: From Microbial Ecology to Plastics Degradation

Barcoto

Rodrigues

2022

Front. Microbiol.

View full text Add to dashboard Cite

Anthropogenic activities have extensively transformed the biosphere by extracting and disposing of resources, crossing boundaries of planetary threat while causing a global crisis of waste overload. Despite fundamental differences regarding structure and recalcitrance, lignocellulose and plastic polymers share physical-chemical properties to some extent, that include carbon skeletons with similar chemical bonds, hydrophobic properties, amorphous and crystalline regions. Microbial strategies for metabolizing recalcitrant polymers have been selected and optimized through evolution, thus understanding natural processes for lignocellulose modification could aid the challenge of dealing with the recalcitrant human-made polymers spread worldwide. We propose to look for inspiration in the charismatic fungal-growing insects to understand multipartite degradation of plant polymers. Independently evolved in diverse insect lineages, fungiculture embraces passive or active fungal cultivation for food, protection, and structural purposes. We consider there is much to learn from these symbioses, in special from the community-level degradation of recalcitrant biomass and defensive metabolites. Microbial plant-degrading systems at the core of insect fungicultures could be promising candidates for degrading synthetic plastics. Here, we first compare the degradation of lignocellulose and plastic polymers, with emphasis in the overlapping microbial players and enzymatic activities between these processes. Second, we review the literature on diverse insect fungiculture systems, focusing on features that, while supporting insects’ ecology and evolution, could also be applied in biotechnological processes. Third, taking lessons from these microbial communities, we suggest multidisciplinary strategies to identify microbial degraders, degrading enzymes and pathways, as well as microbial interactions and interdependencies. Spanning from multiomics to spectroscopy, microscopy, stable isotopes probing, enrichment microcosmos, and synthetic communities, these strategies would allow for a systemic understanding of the fungiculture ecology, driving to application possibilities. Detailing how the metabolic landscape is entangled to achieve ecological success could inspire sustainable efforts for mitigating the current environmental crisis.

show abstract

Section: What Biotechnology Could Learn From Insect Fungiculture?mentioning

confidence: 99%

Lessons From Insect Fungiculture: From Microbial Ecology to Plastics Degradation

Barcoto

Rodrigues

2022

Front. Microbiol.

View full text Add to dashboard Cite

show abstract

“…Many types of anaerobic bacteria have been found to have the ability to utilize lignocellulose as a carbon source. These can be found in genera such as Clostridium, Ruminococcus, Fibrobacter, Acetivibrio, Butyrivibrio, Halocella, Bacteroides, Spirochaeta, Thermotoga, Echinicola, Mahella, Marinilabilia, Prevotella, Flavobacterium, and Streptomyces (Bhujbal et al, 2022;Chukwuma et al, 2021;Tsavkelova and Netrusov, 2012). In an anaerobic digestion process operating with lignocellulosic materials as the primary substrate, the relative abundance of these different genera can vary depending on factors such as the composition of the substrate, process configuration, and operating parameters.…”

Section: Microorganisms Involved In Anaerobic Digestion Of Lignocellu...mentioning

confidence: 99%

Approaches to Enhancing Bioproduction using Lignocellulose Biomass: A Major Focus on Biofuel Production

Ugwuoji¹,

Eruala²,

Akpadolu³

et al. 2022

Preprint

View full text Add to dashboard Cite

The demand for an efficient utilization of abundant biomasses is growing for the production of biogas and valuable bioproducts. Lignocellulose biomass is a cheap and most abundant carbon source for the production of biofuels such as bioethanol, biobutanediol, and other bio-based chemicals. Due to its complex heterogeneity, its hydrolysis gives rise to a mixture of sugars, mainly glucose; a hexose and xylose; a pentose. Glucose is the most abundant carbohydrate monomer. Most microorganisms have evolved the ability to utilize it preferably due to carbon catabolite repression regulatory mechanism at the detriment of the pentoses. Some microbes even lack the ability to utilize them. This has led to the sequential use of these sugars and accompanying reduced productivity due to inadequate utilization of the pentoses. Also, this sequential utilization of the sugars takes time and makes the overall processes economically costly. Since lignocellulose hydrolysates comprise both hexoses and pentoses, the catabolism of these sugar mixtures to biofuels will require an efficient microbial strain capable of simultaneous utilization. The use of CCR negative mutants can achieve this. CCR negative mutants simultaneously utilize pentoses and hexoses, ensuring an improved fermentation efficacy and greater productivity, thus, making the overall bioprocess economically feasible. This article reviewed several approaches employed in creating these mutant microorganisms. A brief insight on carbon catabolite repression and phosphostransferase system were made. It also highlighted the biogas production processes, factors affecting anaerobic digestion, lignocellulosic biomass structure, challenges with their use and solutions to overcoming the challenges.

show abstract

“…The evaluation was performed by using lactic acid-producing bacteria viz: Lactobacillus casei and a ligninolytic fungus Aspergillus Niger like Saccharomyces cerevisiae [23,25] bacteria (Cellulomonas uda NRRL-404) [26] brown rot fungi, white-rot fungi, and soft rot fungi [23,27] such studies are not taking place by these specific strains.…”

Section: Assessment Of Microbial Activities On Physical Change Of Strawmentioning

confidence: 99%

Role of Live Microbes for Fermentation and Enhancement of Feeding Value of Wheat Straw as Animal Fodder

Feyisa

Yadav

2021

View full text Add to dashboard Cite

Nowadays, a resource terrible and technologically hungered farmhand within the developing nations of tropical zones faces intense challenges of their livestock farming and products due to tremendously and seriously increments of the human populace in this century. These challenges create this potential to feed human food security and not meet this sector's 2050 human population demand. The farmer faces the challenges of creating better value and sufficient harvests. Their livestock’s low-fine feedstuff-like crop-residues with low dietary due to shrinking grazing land shifted to farming land. Hence, our farmers want the generation that tackles this hassle through biological treatment to get without difficulty digested, nicely evolved flavor and nutritionally in shape, extra protein content in flip offers proper milk and red meat in-phrases of high-class besides capacity. This study aimed to determine the nutritional worth of wheat chaff treated biologically by bacterial and fungal Lactobacillus Casei Shirota and Aspergillus Niger strain. It also analyzed the physical and chemical structure of fermented chaff to obtain the numerical values that indicate the increments straw value and enhance feed intake of the individual livestock.

show abstract

A Review on Bacterial Contribution to Lignocellulose Breakdown into Useful Bio-Products

Cited by 59 publications

References 173 publications

Lessons From Insect Fungiculture: From Microbial Ecology to Plastics Degradation

Lessons From Insect Fungiculture: From Microbial Ecology to Plastics Degradation

Approaches to Enhancing Bioproduction using Lignocellulose Biomass: A Major Focus on Biofuel Production

Role of Live Microbes for Fermentation and Enhancement of Feeding Value of Wheat Straw as Animal Fodder

Contact Info

Product

Resources

About