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Optimization of chlorophyll extraction from pineapple plantation waste
Siti Hajar Abd Rahim1, Norazwina Zainol1,2, Kamaliah Abdul Samad3
1College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia.
Heliyon
|December 2, 2022
Summary
Pineapple waste in Malaysia can be used to extract natural dyes for solar cells. This study optimized mechanical extraction of chlorophyll (TC) from pineapple leaves, achieving 693.292 mg/L with optimal conditions at 3 cycles and 8 hours.
Area of Science:
- Green Chemistry
- Materials Science
- Renewable Energy
Background:
- Malaysia faces environmental challenges due to abundant pineapple waste.
- Chlorophyll from pineapple waste is explored as a natural dye for solar cell sensitizers.
- Natural dyes offer an eco-friendly and cost-effective alternative to synthetic dyes.
Purpose of the Study:
- To optimize chlorophyll extraction from pineapple leaves using a mechanical method.
- To identify critical factors influencing total chlorophyll (TC) concentration.
- To establish a suitable model for maximizing TC yield.
Main Methods:
- Mechanical extraction of chlorophyll from pineapple leaves.
- Response surface methodology with a central composite design.
- Investigated factors: extraction cycle (1-5) and storage time (7-9 h).
Main Results:
- Maximum total chlorophyll (TC) concentration achieved was 693.292 mg/L.
- Optimal extraction conditions determined as 3 cycles and 8 hours of storage time.
- Storage time (p=0.1106) was identified as the critical factor affecting TC concentration.
Conclusions:
- The developed models are well-fitted (R²=0.8673) and suitable for optimizing TC extraction.
- Mechanical extraction provides an effective method for utilizing pineapple waste for natural dye production.
- Optimized conditions maximize chlorophyll yield, supporting sustainable solar cell technology.
