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Favaretto DPC, Rempel A, Lanzini JR, Silva ACM, Lazzari T, Barbizan LD, Brião VB, Colla LM, Treichel H. Fruit residues as biomass for bioethanol production using enzymatic hydrolysis as pretreatment. World J Microbiol Biotechnol 2023; 39:144. [PMID: 37004675 DOI: 10.1007/s11274-023-03588-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/19/2023] [Indexed: 04/04/2023]
Abstract
The commercialization of fruits in markets generates a large amount of waste because they are perishable and have a short shelf life, so, they are discarded. This study aimed to provide a noble end to discarded fruits that have fermentable sugars. Banana, apple, mango and papaya residues were collected from supermarkets and underwent an enzymatic hydrolysis process. The ability of four pectinases, two amylases, one xylanase and one cellulase to release reducing sugars from fruit biomass before fermentation with two yeast strains (S. cerevisiae CAT-1 and S. cerevisiae Angel) for bioethanol production was investigated, obtaining a total of RS (Reducing sugar) of 268.08 mg/mL in banana residues. A fermentation with yeast S. cerevisiae CAT-1 resulted in 98% consumption of RS and the production of a total of 28.02 g/L of ethanol. Furthermore, fermentation with the yeast S. cerevisiae Angel, resulted in 97% RS consumption and 31.87 g/L ethanol production, which was the best result obtained throughout all the tests of hydrolysis, highlighting the banana residue as a promising biomass for the production of bioethanol.
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Affiliation(s)
- Danúbia Paula Cadore Favaretto
- University of Passo Fundo, Campus I, km 171, BR 285, P. O. Box 611, Passo Fundo City, Rio Grande do Sul State, 99001-970, Brazil.
| | - Alan Rempel
- University of Passo Fundo, Campus I, km 171, BR 285, P. O. Box 611, Passo Fundo City, Rio Grande do Sul State, 99001-970, Brazil
| | - Julia Roberta Lanzini
- University of Passo Fundo, Campus I, km 171, BR 285, P. O. Box 611, Passo Fundo City, Rio Grande do Sul State, 99001-970, Brazil
| | - Ana Carolina Mattana Silva
- University of Passo Fundo, Campus I, km 171, BR 285, P. O. Box 611, Passo Fundo City, Rio Grande do Sul State, 99001-970, Brazil
| | - Tauane Lazzari
- University of Passo Fundo, Campus I, km 171, BR 285, P. O. Box 611, Passo Fundo City, Rio Grande do Sul State, 99001-970, Brazil
| | - Luiza Desengrini Barbizan
- University of Passo Fundo, Campus I, km 171, BR 285, P. O. Box 611, Passo Fundo City, Rio Grande do Sul State, 99001-970, Brazil
| | - Vandré Barbosa Brião
- University of Passo Fundo, Campus I, km 171, BR 285, P. O. Box 611, Passo Fundo City, Rio Grande do Sul State, 99001-970, Brazil
| | - Luciane Maria Colla
- University of Passo Fundo, Campus I, km 171, BR 285, P. O. Box 611, Passo Fundo City, Rio Grande do Sul State, 99001-970, Brazil
| | - Helen Treichel
- Federal University of the South Border - Campus Erechim, RS 135, Km 72, Erechim City, Rio Grande do Sul State, 99700-000, Brazil
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