Microbial cellulase production using fruit wastes and its applications in biofuels production

Areeshi, Mohammed Y.

doi:10.1016/j.ijfoodmicro.2022.109814

Cited by 15 publications

(8 citation statements)

References 107 publications

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“…Each condition was evaluated for seven days (168 h) regarding the production of FPase and CMCase. Areeshi (2022) has reviewed the importance of water activity on microbial cultivation in SSF [29]. Generally, an increase in the moisture content causes an increase in enzyme production up to some level, when the addition of more water hinders the process.…”

Section: Production Of Cellulasesmentioning

confidence: 99%

“…Furthermore, few companies control the production of cellulases, marketing their cocktail with hidden formulations and under exclusive licensors [28]. The use of cheap substrates, e.g., lignocellulosic wastes, to produce cellulases through a cost-effective process, such as SSF, might make the enzyme less expensive, positively affecting the economics of biofuels [29].…”

Section: Introductionmentioning

confidence: 99%

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Extraction of Cellulases Produced through Solid-State Fermentation by Trichoderma reesei CCT-2768 Using Green Coconut Fibers Pretreated by Steam Explosion Combined with Alkali

Campos,

Asevedo,

Souza Filho

et al. 2024

Biomass

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The industrial processing of coconut to produce valuable foods, such as water and milk, generates large volumes of waste, especially the fruit shell. Despite this, material can be used in bioprocess applications, e.g., the production of enzymes, its recalcitrance hinders the cultivation of microorganisms, and low productivity is usually achieved. In this study, the production of cellulolytic enzymes through solid-state fermentation (SSF) and their extraction was investigated using the green coconut fiber pretreated by steam explosion, followed by alkali. The fungus Trichoderma reesei CCT-2768 was cultivated, using an experimental design, to study the effect of the water activity and the amount of biomass in the reactor. The combination of the pretreatment strategies yielded more porous biomass, with less hemicellulose (5.38%, compared to 10.15% of the raw biomass) and more cellulose (47.77% and 33.96% in the pretreated and raw biomasses, respectively). The water activity significantly affected the production of cellulases, with maximum activity yielded at the highest investigated value (0.995). Lastly, the extraction of the enzymes from the cultivation medium was studied, and a 9 g/L NaCl solution recovered the highest CMCase and FPase activities (5.19 and 1.19 U/g, respectively). This study provides an important contribution to the valorization of the coconut residue through (i) the application of the steam explosion technology to optimize the production of cellulases using the SSF technology and (ii) their extraction using different solvents.

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Section: Production Of Cellulasesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Extraction of Cellulases Produced through Solid-State Fermentation by Trichoderma reesei CCT-2768 Using Green Coconut Fibers Pretreated by Steam Explosion Combined with Alkali

Campos,

Asevedo,

Souza Filho

et al. 2024

Biomass

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“…Regarding the substrate, diverse types can be used as carbon sources for lignocellulolytic enzyme production, including seeds, fruits, and agro-industrial residues [ 229 , 231 , 232 , 233 , 234 , 235 , 236 , 237 ]. Since it has low cost and wide availability, the use of agro-industrial residues contributes to reducing the production cost of these enzymes, in addition to not competing with the production of food for human and animal consumption [ 238 ].…”

Section: Lignocellulolytic Enzymes Productionmentioning

confidence: 99%

Lignocellulolytic Biocatalysts: The Main Players Involved in Multiple Biotechnological Processes for Biomass Valorization

Benatti

Polizeli

2023

Microorganisms

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Human population growth, industrialization, and globalization have caused several pressures on the planet’s natural resources, culminating in the severe climate and environmental crisis which we are facing. Aiming to remedy and mitigate the impact of human activities on the environment, the use of lignocellulolytic enzymes for biofuel production, food, bioremediation, and other various industries, is presented as a more sustainable alternative. These enzymes are characterized as a group of enzymes capable of breaking down lignocellulosic biomass into its different monomer units, making it accessible for bioconversion into various products and applications in the most diverse industries. Among all the organisms that produce lignocellulolytic enzymes, microorganisms are seen as the primary sources for obtaining them. Therefore, this review proposes to discuss the fundamental aspects of the enzymes forming lignocellulolytic systems and the main microorganisms used to obtain them. In addition, different possible industrial applications for these enzymes will be discussed, as well as information about their production modes and considerations about recent advances and future perspectives in research in pursuit of expanding lignocellulolytic enzyme uses at an industrial scale.

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“…These enzymes work synergistically to degrade cellulose [118] and are the focus of numerous studies due to their vital role in biomass hydrolysis [119] . Due to the potential of cellulases to break down cellulosic biomass into glucose, these enzymes are in great demand in the global commercial market due to their wide-ranging applications across diverse industries [120,121] .…”

Section: Cellulasesmentioning

confidence: 99%

Streptomyces at the Heart of Several Sectors to Support Practical and Sustainable Applications: A Review

Beroigui,

Errachidi

2023

Prog Micobes Mol Biol

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This article emphasizes the various contributions of actinobacteria to the well-being of human life on our planet. Agrarian virtues begin with the substitution of chemical fertilizers with bio-fertilizing microorganisms which have a versatile potential for the benefit of soil and plants by playing complementary and interconnected roles. Thus, these microorganisms improve soil health through bioremediation phenomena and the elimination of several non-beneficial microorganisms. In agriculture, these microorganisms can be added to compost as inoculants to speed up the composting process and provide an additional source of beneficial microorganisms for the compost-treated soil. Streptomyces and other actinobacteria can also be used as biotechnological sources of herbicides and insecticides. In the medical and therapeutic sectors, this paper emphasizes the potential of actinobacteria, in particular Streptomyces species, in the production of antibiotics, antioxidant, and anticancer agents, opening up avenues for the creation of molecules with high benefits. In biotechnology, these totipotent microorganisms produce enzymes widely used in several industries, generating considerable revenue. Sporadic data accumulated on these types of microorganisms opens up many new avenues for exploiting these natural biocatalytic resources. Papers published in the last decade have exploded the amount of information that can be put to practical use. To maximize the value of these microorganisms, it would be advisable to create common threads between the themes that bring together the areas of expertise where these microorganisms could potentially be exploited. This bibliographical synthesis is a contribution to the development of a targeted database.

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Microbial cellulase production using fruit wastes and its applications in biofuels production

Cited by 15 publications

References 107 publications

Extraction of Cellulases Produced through Solid-State Fermentation by Trichoderma reesei CCT-2768 Using Green Coconut Fibers Pretreated by Steam Explosion Combined with Alkali

Extraction of Cellulases Produced through Solid-State Fermentation by Trichoderma reesei CCT-2768 Using Green Coconut Fibers Pretreated by Steam Explosion Combined with Alkali

Lignocellulolytic Biocatalysts: The Main Players Involved in Multiple Biotechnological Processes for Biomass Valorization

Streptomyces at the Heart of Several Sectors to Support Practical and Sustainable Applications: A Review

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