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https://www.arca.fiocruz.br/handle/icict/47468
PRODUCTION OF 6-PENTYL-ALPHA-PYRONE BY TRICHODERMA HARZIANUM IN SOLID-STATE FERMENTATION
Affilliation
Fundação Oswaldo Cruz. Instituto de Tecnologia em Fármacos. Rio de Janeiro, RJ, Brasil / Universidade Federal do Rio de Janeiro. Escola de Química. Departamento de Engenharia Bioquímica. Rio de Janeiro, RJ, Brasil.
Universidade Federal Fluminense. Faculdade de Farmácia. Niterói, RJ, Brasil.
Universidade Federal do Rio de Janeiro. Escola de Química. Departamento de Engenharia Bioquímica. Rio de Janeiro, RJ, Brasil.
Universidade Federal Fluminense. Faculdade de Farmácia. Niterói, RJ, Brasil.
Universidade Federal do Rio de Janeiro. Escola de Química. Departamento de Engenharia Bioquímica. Rio de Janeiro, RJ, Brasil.
Abstract
Many Trichoderma species are able to produce 6-pentyl-α-pyrone (6-PP), a lactone with coconut-like aroma. In the present work, several culture parameters were studied to enhance the production of 6-PP by Trichoderma harzianum 4040 in solid-state fermentation. Green coir powder added to a nutrient solution was used as support material for fermentation. A Plackett-Burman screening technique was applied, followed by a fractionary factorial design. The best culture conditions within the experimental domain studied were (100 g support)-1: sucrose, 3 g; NaNO3, 0.24 g; (NH4)2SO4, 0.18 g; KH2PO4, 0.1 g; inoculum concentration, 2.2 x 106 spores; moisture level, 55%. The temperature established was 28ºC. The fermentation under the selected conditions led to a 6-PP production six times higher (5.0 mg/g dry matter) than the initial one (0.8 mg/g dry matter) after seven days of cultivation.
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