Potential of Endophytic Microorganisms in Fermentative Processes Using Agro-Industrial Waste as Substrates

Author:

Leite Neta Maria Terezinha Santos1ORCID,Sandes Rafael Donizete Dutra1ORCID,De Jesus Mônica Silva1ORCID,Araujo Hannah Caroline Santos1ORCID,Dos Santos Raquel Anne Ribeiro2,Santana Luciana Cristina Lins De Aquino3ORCID,Narain Narendra1ORCID

Affiliation:

1. Laboratory of Flavor and Chromatographic Analysis, Federal University of Sergipe, Av. Marechal Rondon, s/n, Jardim Rosa Elze, São Cristóvão 49100-000, Sergipe, Brazil

2. Federal Institute of Education, Science and Technology of Sergipe, Rod. BR 101, Km 96, s/n, Quissamã, São Cristóvão 49100-000, Sergipe, Brazil

3. Department of Food Technology, Laboratory of Food Microbiology and Bioengineering, Federal University of Sergipe, Av. Marechal Rondon, s/n, Jardim Rosa Elze, São Cristóvão 49100-000, Sergipe, Brazil

Abstract

This study investigated the potential of endophytic microorganisms in fermentative processes using agro-industrial residues as substrates. The aim was to explore sustainable biotechnological methods for producing valuable compounds from waste. Endophytic microorganisms were isolated from strawberry, lychee, and tangerine and used in fermentative processes with passion fruit, guava, and pineapple residues. Key methods included isolating and screening potent aroma-producing microorganisms, identifying them using MALDI-TOF MS, and analyzing volatile compounds by GC-MS. The results identified 37 endophytic microorganisms, with Kloeckera apiculata presenting the greatest aromatic potential. Fermentation with agro-industrial residues produced significant volatile compounds, identifying 27, 23, and 22 compounds from passion fruit, pineapple, and guava residues, respectively. The main conclusions highlighted the high production of ethyl acetate and 2-phenylethyl acetate, which contributed to fruity and floral aromas. The novelty of this study lies in the use of endophytic microorganisms isolated from tropical fruits to biotransform agro-industrial waste into high-value aromatic compounds, offering economic and environmental benefits. This research is significant, as it proposes a sustainable approach to valorize waste and produce natural aroma compounds through biotechnological processes.

Funder

CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico), Brazil

Instituto Nacional de Ciência e Tecnologia de Frutos Tropicais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Publisher

MDPI AG

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