Maturation of honey from Uruçú-Amarela (Melipona mondury): Metagenomics, metabolomics by NMR 1H, physicochemical and antioxidant properties
2023
José Renato Silva | Fernanda Carla Henrique-Bana | Jerônimo Kahn Villas-Bôas | Tatiana Colombo Pimentel | Wilma Aparecida Spinosa | Sandra Helena Prudencio
The objective of this study was to characterize the microbiota biodiversity of Uruçú-Amarela honey through metagenomics. Furthermore, the impact of maturation temperatures (20 and 30 °C) and time (0–180 days) on the physicochemical and antioxidant properties was investigated. 1H NMR was performed to verify metabolites formed during maturation. Uruçú-Amarela honey was mainly composed by lactic acid bacteria and osmophilic yeasts of genus Zygosaccharomyces. Maturation at 30 °C led to a higher fermentation activity, resulting in greater carbohydrate consumption, ethanol formation (0.0–0.6 %) and increased acidity (34.78–45.74 meq/kg) over the 180 days. It also resulted in honey with higher brown color (a* 0.7 to 3.89, b* 17.50–25.29) and antioxidant capacity, corroborating that the maturation is a suitable preservation technique for stingless bee honey, because it does not cause negative changes as it extends the shelf life of the stingless bee honey.
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