SYNTHESIS AND CHARACTERIZATION OF BIOETHANOL FROM PINEAPPLE CROWN (ANANAS COMOSUS)
Abstract
ABSTRACT
This research investigates the production of bioethanol from African pineapple crown. The process involved several steps, including sample collection, pretreatment with H2SO4, fermentation using Saccharomyces cerevisiae, and distillation. The physicochemical properties of the produced bioethanol of light brown coloration and unpleasant odour were evaluated. Key findings include an iodine value of (14 g 14/100g), acid value of (29.45 mg KOH/g), and a refractive index of (1.3601). Other properties such as density (1.205 g/mL), specific gravity (0.987g/cm³), cloud point (8°C), and a 60% yield were also recorded. Fourier-transform infrared spectroscopy (FTIR) analysis confirmed the presence of functional groups typically found in bioethanol, including O-H(3327.41cm-¹), C=O(1633.48cm-¹), and C-O(1049.75cm-¹) stretchings. The results suggest that pineapple crown could serve as a viable source for bioethanol production, providing an eco-friendly and renewable energy alternative. However, further purification is recommended to improve bioethanol quality and meet industry standards.
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