Metabolomic Comparison of Guava (Psidium guajava L.) Leaf Extracts Fermented by Limosilactobacillus fermentum and Lactiplantibacillus plantarum and Their Antioxidant and Antiglycation Activities
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View abstract on PubMed
Summary
This summary is machine-generated.Probiotic fermentation of guava leaves with Limosilactobacillus fermentum (LFG) and Lactiplantibacillus plantarum (LPG) produced distinct bioactive compounds. LFG enhanced antioxidant activity, while LPG boosted antiglycation effects, showcasing strain-specific benefits.
Area Of Science
- Microbiology
- Biochemistry
- Food Science
Background
- Probiotic fermentation transforms plant compounds into bioactive substances.
- Lactobacillaceae strains exhibit diverse metabolic capabilities.
- Guava leaf extract is rich in phenolic compounds with potential health benefits.
Purpose Of The Study
- To compare the metabolic profiles and bioactivities of guava leaf extract fermented by two distinct Lactobacillaceae strains.
- To identify strain-specific metabolites and their contribution to bioactivity.
- To understand the synergistic effects of microbial and plant-derived compounds in fermentation.
Main Methods
- Non-targeted metabolite profiling using multivariate statistical analysis.
- Fermentation of guava leaf extract (0%, 0.5%, 2% w/v) with Limosilactobacillus fermentum KCTC15072BP (LFG) and Lactiplantibacillus plantarum KGMB00831 (LPG).
- Quantification of guava-derived and bacterial metabolites.
- Assays for antioxidant and antiglycation activities.
Main Results
- Identified 21 guava-derived and 30 bacterial metabolites.
- LFG fermentation yielded higher levels of glucogallin, gallic acid, and sugar alcohols.
- LPG fermentation resulted in increased pyrogallol, vanillic acid, naringenin, phloretin, and aromatic amino acid catabolites.
- LFG exhibited significantly higher antioxidant activity; LPG showed significantly higher antiglycation activity.
- Fermentation in guava leaf extract-supplemented media showed enhanced bioactivity compared to control.
Conclusions
- The choice of Lactobacillaceae strain significantly influences the metabolic output and bioactivity of fermented guava leaf extract.
- Synergistic interactions between microbial metabolites and plant-derived compounds enhance bioactivity.
- Differentiating metabolite origins provides deeper insights into plant-based food fermentation processes.
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