Yeasts with Fermentative Potential Associated with Fruits of Camu-Camu (Myrciaria dubia, Kunth) from North of Brazilian Amazon

Considering the high biotechnological potential of yeasts associated to edible fruits, a screening for these microorganisms, capable of alcoholic fermentation, was performed in ripe fruits of camu-camu (Myrciaria dubia, Kunth). The fruits were collected from north of Brazilian Amazon, in the floodpl...

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Main Authors: Ítalo Thiago Silveira Rocha Matos, Vanderly Andrade de Souza, Giovana do Rosário D’Angelo, Spartaco Astolfi Filho, Edson Júnior do Carmo, Marcos José Salgado Vital
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2021/9929059
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author Ítalo Thiago Silveira Rocha Matos
Vanderly Andrade de Souza
Giovana do Rosário D’Angelo
Spartaco Astolfi Filho
Edson Júnior do Carmo
Marcos José Salgado Vital
author_facet Ítalo Thiago Silveira Rocha Matos
Vanderly Andrade de Souza
Giovana do Rosário D’Angelo
Spartaco Astolfi Filho
Edson Júnior do Carmo
Marcos José Salgado Vital
author_sort Ítalo Thiago Silveira Rocha Matos
collection DOAJ
description Considering the high biotechnological potential of yeasts associated to edible fruits, a screening for these microorganisms, capable of alcoholic fermentation, was performed in ripe fruits of camu-camu (Myrciaria dubia, Kunth). The fruits were collected from north of Brazilian Amazon, in the floodplain of the Cauamé River. Yeasts were isolated, and fermentation capability was evaluated using Durham tubes. Quantitative assays were performed to calculate ethanol yield (g g−1), specific growth rate (h−1), and ethanol productivity (g L−1·h−1). Taxonomic identification was performed by ribosomal gene nucleotide sequence analysis by alignment using BLASTN. A total of fifteen yeast colonies were isolated, and three of them presented promising ability to ferment glucose to ethanol. These isolates were identified as Candida orthopsilosis, Pichia kudriavzevii, and Meyerozyma caribbica. When cultured in broth containing 180 g·L−1 of glucose, M. caribbica CC003 reached 91.7 percent of the maximum theoretical ethanol concentration (84.4 g·L−1), presenting an ethanol yield and productivity of 0.4688 g·g−1 and 0.781 g·L−1·h−1, respectively. These results indicate a promising potential of this isolate for bioprocess applications. This paper is a rare report of C. orthopsilosis with endophytic habit because most of the references indicate it as a human pathogen. Besides this, M. caribbica is a promising fermenter for alcoholic beverages due to its osmotolerance and high ethanol yield. This is the first paper reporting endophytic yeasts associated with fruits of Myrciaria dubia.
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spelling doaj-art-afc2c9b0367d482598c18affe541862a2025-02-03T01:07:06ZengWileyThe Scientific World Journal1537-744X2021-01-01202110.1155/2021/9929059Yeasts with Fermentative Potential Associated with Fruits of Camu-Camu (Myrciaria dubia, Kunth) from North of Brazilian AmazonÍtalo Thiago Silveira Rocha Matos0Vanderly Andrade de Souza1Giovana do Rosário D’Angelo2Spartaco Astolfi Filho3Edson Júnior do Carmo4Marcos José Salgado Vital5Federal University of AmazonasFederal University of RoraimaFederal University of AmazonasFederal University of AmazonasFederal University of AmazonasFederal University of RoraimaConsidering the high biotechnological potential of yeasts associated to edible fruits, a screening for these microorganisms, capable of alcoholic fermentation, was performed in ripe fruits of camu-camu (Myrciaria dubia, Kunth). The fruits were collected from north of Brazilian Amazon, in the floodplain of the Cauamé River. Yeasts were isolated, and fermentation capability was evaluated using Durham tubes. Quantitative assays were performed to calculate ethanol yield (g g−1), specific growth rate (h−1), and ethanol productivity (g L−1·h−1). Taxonomic identification was performed by ribosomal gene nucleotide sequence analysis by alignment using BLASTN. A total of fifteen yeast colonies were isolated, and three of them presented promising ability to ferment glucose to ethanol. These isolates were identified as Candida orthopsilosis, Pichia kudriavzevii, and Meyerozyma caribbica. When cultured in broth containing 180 g·L−1 of glucose, M. caribbica CC003 reached 91.7 percent of the maximum theoretical ethanol concentration (84.4 g·L−1), presenting an ethanol yield and productivity of 0.4688 g·g−1 and 0.781 g·L−1·h−1, respectively. These results indicate a promising potential of this isolate for bioprocess applications. This paper is a rare report of C. orthopsilosis with endophytic habit because most of the references indicate it as a human pathogen. Besides this, M. caribbica is a promising fermenter for alcoholic beverages due to its osmotolerance and high ethanol yield. This is the first paper reporting endophytic yeasts associated with fruits of Myrciaria dubia.http://dx.doi.org/10.1155/2021/9929059
spellingShingle Ítalo Thiago Silveira Rocha Matos
Vanderly Andrade de Souza
Giovana do Rosário D’Angelo
Spartaco Astolfi Filho
Edson Júnior do Carmo
Marcos José Salgado Vital
Yeasts with Fermentative Potential Associated with Fruits of Camu-Camu (Myrciaria dubia, Kunth) from North of Brazilian Amazon
The Scientific World Journal
title Yeasts with Fermentative Potential Associated with Fruits of Camu-Camu (Myrciaria dubia, Kunth) from North of Brazilian Amazon
title_full Yeasts with Fermentative Potential Associated with Fruits of Camu-Camu (Myrciaria dubia, Kunth) from North of Brazilian Amazon
title_fullStr Yeasts with Fermentative Potential Associated with Fruits of Camu-Camu (Myrciaria dubia, Kunth) from North of Brazilian Amazon
title_full_unstemmed Yeasts with Fermentative Potential Associated with Fruits of Camu-Camu (Myrciaria dubia, Kunth) from North of Brazilian Amazon
title_short Yeasts with Fermentative Potential Associated with Fruits of Camu-Camu (Myrciaria dubia, Kunth) from North of Brazilian Amazon
title_sort yeasts with fermentative potential associated with fruits of camu camu myrciaria dubia kunth from north of brazilian amazon
url http://dx.doi.org/10.1155/2021/9929059
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