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Development of a Bioactive Alginate-Based Biomaterial Enriched With Banana Rachis Extract for Postharvest
Victoria Estefania Ruiz-Molina1, Juan Carlos Noa-Carrazana2, Raúl Rodríguez-Herrera3
1Colegio de Postgraduados Campus Veracruz, Veracruz, México.
Journal of Food Science
|June 19, 2026
Summary
A novel edible coating made from alginate and plant extracts effectively reduced fungal decay in mangoes by 62%. This sustainable biomaterial also maintained fruit firmness and enhanced nutrient retention, extending shelf-life.
Area of Science:
- Food Science
- Materials Science
- Agricultural Science
Background:
- Postharvest fungal decay significantly limits mango shelf-life and marketability.
- Development of bioactive edible coatings is crucial for modulating fruit physiology during storage.
Purpose of the Study:
- To evaluate a sodium alginate edible coating enriched with banana rachis leachate and Eugenia uniflora L. extract.
- To assess its efficacy in suppressing postharvest decay and maintaining quality in 'Manila' mango.
Main Methods:
- Coating formulation using sodium alginate, banana rachis leachate, and Eugenia uniflora L. extract.
- Scanning Electron Microscopy (SEM) and Fourier-Transform Infrared Spectroscopy (FTIR) for matrix analysis.
- Storage trials with uncoated and coated mangoes under controlled conditions (25°C, 50%-70% RH for 16 days).
Main Results:
- The best coating formulation (T1) reduced rot severity by 62% and increased firmness by 42%.
- T1 delayed ripening, enhanced vitamin C, total phenolics, and antioxidant activity retention.
- Coating performance was attributed to bioactive modulation rather than water-vapor barrier properties.
Conclusions:
- Bioactive edible coatings derived from agro-industrial residues offer a sustainable solution for postharvest preservation.
- This approach can reduce decay, maintain mango quality, and extend shelf-life.
- The formulation presents an eco-friendly alternative to synthetic fungicides for fruit producers and exporters.
