The Effect of Aeration for 6-Pentyl-alpha-pyrone, Conidia and Lytic Enzymes Production by Trichoderma asperellum Strains Grown in Solid-State Fermentation

Autor: Nadira Taïeb, Josiane Molinet, Quentin Carboué, Nathalie Dupuy, Rayhane Hamrouni, Sevastianos Roussos, Ahmed Masmoudi
Přispěvatelé: Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Institut Supérieur de Biotechnologie & Unité de recherche 08/39, Faculté de Médecine de Monastir [Tunisie]
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Waste and Biomass Valorization
Waste and Biomass Valorization, Springer, 2020, 11 (11), pp.5711-5720. ⟨10.1007/s12649-019-00809-4⟩
Waste and Biomass Valorization, 2020, 11 (11), pp.5711-5720. ⟨10.1007/s12649-019-00809-4⟩
ISSN: 1877-2641
1877-265X
DOI: 10.1007/s12649-019-00809-4⟩
Popis: In recent years, the production of biopesticides has gained great attention in the scientific word because it is an important alternative to replace the much debated chemical pesticides used on the field crops. Fungal lytic enzymes, conidia and secondary metabolites like 6 pentyl-alpha-pyrone (6-PP) play a very important role in the biological control of pests. On the present study, the influence of application of air through a solid-state fermentation using three Trichoderma asperellum strains to produce conidia, 6-PP and essential enzymes were evaluated. A mix of vine shoots, potatoes flour, jatropha, olive pomace and olive oil as substrates was used. T. asperellum TV104 showed the best 6-PP production (3.06 ± 0.15 mg g DM−1), cellulases activities (34.3 ± 0.4 U g−1), and amylase activity (46.3 ± 0.6 U g−1) however, T. asperellum TF1 produced the higher levels of lipase (30.6 ± 0.3 U g−1), under air conditions. The production of these same enzymes was less efficient without the application of forced aeration. The forced aeration increased the conidia production, the best value was observed with T. asperellum TF1 (2.23 ± 0.07 × 109 g DM−1). Graphic Abstract
Databáze: OpenAIRE