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Enzymatic glycosylation of menthol: optimization of synthesis and extraction processes using response surface methodology and biological evaluation of synthesized product. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02061-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Batista BN, Matias RR, Oliveira RLE, Albuquerque PM. Hydrolytic enzyme production from açai palm (Euterpe precatoria) endophytic fungi and characterization of the amylolytic and cellulolytic extracts. World J Microbiol Biotechnol 2022; 38:30. [PMID: 34989888 DOI: 10.1007/s11274-021-03217-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 12/18/2021] [Indexed: 01/02/2023]
Abstract
Enzymes are biocatalysts that are widely used in different industries and generate billions of dollars annually. With the advancement of biotechnology, new enzymatic sources are being evaluated, especially microbial ones, in order to find efficient producers. Endophytic fungi are promising sources of biomolecules; however, Amazonian species are still poorly studied as to their enzymatic production potential. In this sense, the production of hydrolases (amylases, lipases, cellulases and pectinases) was evaluated in endophytic fungi isolated from the leaves, roots and stems of açai palms (Euterpe precatoria). A qualitative test was carried out to detect the enzymatic synthesis in each isolate, and the most promising ones were cultivated using submerged fermentation. The enzyme extracts were quantified to determine those with the greatest activity. Cellulolytic and amylolytic extracts showed the highest enzymatic activities and were partially characterized. Among 50 isolates, 82.9% produced pectinase, 58.5% produced cellulase, 31.7% produced amylase, and 12.2% produced lipase. Penicillium sp. L3 was the best producer of amylase and Colletotrichum sp. S1 was the best producer of cellulase in liquid medium cultivation. The amylolytic extract showed the highest enzymatic activity at pH 8.0 and 45 °C, and the cellulolytic extract at pH 5.0 and 35 °C. The cellulase and amylase produced by the endophytes had their molecular masses estimated between 38 and 76 kDa. These results indicate that endophytic fungi from the açai palm can be used as a new source of hydrolytic enzymes, which can be applied in numerous biotechnological processes.
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Affiliation(s)
- Bárbara Nunes Batista
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Rede Bionorte, Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas, Manaus, AM, 69050-020, Brazil.,Laboratório de Química Aplicada à Tecnologia, Escola Superior de Tecnologia, Universidade do Estado do Amazonas, Manaus, AM, 69065-001, Brazil
| | - Rosiane Rodrigues Matias
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Rede Bionorte, Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas, Manaus, AM, 69050-020, Brazil.,Laboratório de Química Aplicada à Tecnologia, Escola Superior de Tecnologia, Universidade do Estado do Amazonas, Manaus, AM, 69065-001, Brazil
| | - Rafael Lopes E Oliveira
- Laboratório de Química Aplicada à Tecnologia, Escola Superior de Tecnologia, Universidade do Estado do Amazonas, Manaus, AM, 69065-001, Brazil
| | - Patrícia Melchionna Albuquerque
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Rede Bionorte, Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas, Manaus, AM, 69050-020, Brazil. .,Laboratório de Química Aplicada à Tecnologia, Escola Superior de Tecnologia, Universidade do Estado do Amazonas, Manaus, AM, 69065-001, Brazil. .,Programa de Pós-Graduação em Biotecnologia e Recursos Naturais da Amazônia, Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas, Manaus, AM, 69065-001, Brazil.
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Vergès A, Cambon E, Barbe S, Moulis C, Remaud-Siméon M, André I. Novel product specificity toward erlose and panose exhibited by multisite engineered mutants of amylosucrase. Protein Sci 2017; 26:566-577. [PMID: 28019698 DOI: 10.1002/pro.3106] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 11/07/2022]
Abstract
A computer-aided engineering approach recently enabled to deeply reshape the active site of N. polysaccharea amylosucrase for recognition of non-natural acceptor substrates. Libraries of variants were constructed and screened on sucrose allowing the identification of 17 mutants able to synthesize molecules from sole sucrose, which are not synthesized by the parental wild-type enzyme. Three of the isolated mutants as well as the new products synthesized were characterized in details. Mutants contain between 7 and 11 mutations in the active site and the new molecules were identified as being a sucrose derivative, named erlose (α-d-glucopyranosyl-(1→4)-α-d-glucopyranosyl-(1→2)-β-d-Fructose), and a new malto-oligosaccharide named panose (α-d-glucopyranosyl-(1→6)-α-d-glucopyranosyl-(1→4)-α-d-Glucose). These product specificities were never reported for none of the amylosucrases characterized to date, nor their engineered variants. Optimization of the production of these trisaccharides of potential interest as sweeteners or prebiotic molecules was carried out. Molecular modelling studies were also performed to shed some light on the molecular factors involved in the novel product specificities of these amylosucrase variants.
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Affiliation(s)
- Alizée Vergès
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Emmanuelle Cambon
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Sophie Barbe
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Claire Moulis
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Magali Remaud-Siméon
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Isabelle André
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
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Saehu S, Srisimarat W, Prousoontorn MH, Pongsawasdi P. Transglucosylation reaction of amylomaltase for the synthesis of anticariogenic oligosaccharides. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2012.11.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Marine biocatalysts: enzymatic features and applications. Mar Drugs 2011; 9:478-499. [PMID: 21731544 PMCID: PMC3124967 DOI: 10.3390/md9040478] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 02/28/2011] [Accepted: 03/23/2011] [Indexed: 11/21/2022] Open
Abstract
In several recent reports related to biocatalysis the enormous pool of biodiversity found in marine ecosystems is considered a profitable natural reservoir for acquiring an inventory of useful biocatalysts. These enzymes are characterized by well-known habitat-related features such as salt tolerance, hyperthermostability, barophilicity and cold adaptivity. In addition, their novel chemical and stereochemical characteristics increase the interest of biocatalysis practitioners both in academia and research industry. In this review, starting from the analysis of these featuring habitat-related properties, important examples of marine enzymes in biocatalysis will be reported. Completion of this report is devoted to the analysis of novel chemical and stereochemical biodiversity offered by marine biocatalysts with particular emphasis on current or potential applications of these enzymes in chemical and pharmaceutical fields. The analysis of literature cited here and the many published patent applications concerning the use of marine enzymes supports the view that these biocatalysts are just waiting to be discovered, reflecting the importance of the marine environment. The potential of this habitat should be thoroughly explored and possibly the way to access useful biocatalysts should avoid destructive large-scale collections of marine biomass for enzyme production. These two aspects are day by day increasing in interest and a future increase in the use of marine enzymes in biocatalysis should be expected.
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Nimpiboon P, Nakapong S, Pichyangkura R, Ito K, Pongsawasdi P. Synthesis of a novel prebiotic trisaccharide by a type I α-glucosidase from B. licheniformis strain TH4-2. Process Biochem 2011. [DOI: 10.1016/j.procbio.2010.09.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Carvalho AFA, Boscolo M, da Silva R, Ferreira H, Gomes E. Purification and characterization of the α-glucosidase produced by thermophilic fungus Thermoascus aurantiacus CBMAI 756. J Microbiol 2010; 48:452-9. [DOI: 10.1007/s12275-010-9319-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2009] [Accepted: 04/23/2010] [Indexed: 10/19/2022]
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Wongsangwattana W, Kaulpiboon J, Ito K, Pongsawasdi P. Synthesis of cellobiose-containing oligosaccharides by intermolecular transglucosylation of cyclodextrin glycosyltransferase from Paenibacillus sp. A11. Process Biochem 2010. [DOI: 10.1016/j.procbio.2010.02.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hu Y, Luan H, Zhou K, Ge G, Yang S, Yang L. Purification and characterization of a novel glycosidase from the china white jade snail (Achatina fulica) showing transglycosylation activity. Enzyme Microb Technol 2008. [DOI: 10.1016/j.enzmictec.2008.02.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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