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Bioactive Compounds from Banana Leaf Extracts: Influence of Extraction Methodologies and Their Integration into
Joana Mota Gomes1, João Mariz1, Catarina Rodrigues1
1CITEVE-Technological Centre for Textile and Clothing of Portugal, 4760-034 Vila Nova de Famalicão, Portugal.
Materials (Basel, Switzerland)
|December 17, 2024
Summary
Banana leaf extracts, when applied to hemp fabrics using advanced methods like ultrasound-assisted extraction, significantly boost antioxidant and antimicrobial properties. These functionalized textiles also offer enhanced UV protection, creating sustainable materials for health and textile industries.
Area of Science:
- Materials Science
- Biotechnology
- Textile Engineering
Background:
- Banana leaf extracts possess bioactive compounds with potential applications.
- Functionalizing textiles with natural extracts can impart beneficial properties.
- Sustainable and biocompatible materials are in high demand for various sectors.
Purpose of the Study:
- To explore the bioactive potential of banana leaf extracts.
- To integrate these extracts into knitted hemp fabrics.
- To evaluate the antioxidant, antimicrobial, and UV protection properties of the functionalized fabrics.
Main Methods:
- Extraction of banana leaf compounds using conventional, ultrasound-assisted, and pressurized-liquid methods with varying ethanol concentrations.
- Cationization and functionalization of knitted hemp fabrics via padding.
- Assays for phenolic content (Folin-Ciocalteu), antioxidant activity (DPPH), antimicrobial properties (ATCC TM-100), and UV protection (AS/NZS 4399:2017).
Main Results:
- Ultrasound-assisted and pressurized-liquid extraction methods yielded higher phenolic content compared to conventional methods.
- 50% ethanol solvent improved extraction yields across all methodologies.
- Functionalized knits showed enhanced antioxidant activity, antimicrobial properties, and UV protection (UPF), particularly with extracts from assisted extraction methods and higher ethanol concentrations.
Conclusions:
- Advanced extraction techniques and hydroethanolic solvents effectively enhance the extraction of bioactive compounds from banana leaves.
- Banana leaf extract-functionalized hemp fabrics exhibit significant antioxidant, antimicrobial, and UV-protective properties.
- This research supports the development of sustainable, biocompatible textiles with enhanced functionalities for textile and healthcare applications.
