Abstract

Agricultural country in East Asia has generated abundant plantations wastes that contain cellulose. It is then hydrolysed to glucose catalytically or through enzymatic approach. Glucose product is widely used in food industries. Alternatively, it can be converted into biofuel resources that reduce fossil fuel dependency. In this study, glucose was extracted from three different types of fruits peel wastes which are Musa Sapientum (banana), Ananas Comosus (pineapple) and Mangifera Indica Linn (mango); by using alkaline hydrolysis method and the concentration obtained were compared accordingly. The alkali is used to remove the lignin content in fruits peel. The process started with samples and solvent preparation, followed by samples pre-treatment. Samples were mixed with NaOH (1%, 2% and 3%) at 80 °C and agitated at approximately 700 rpm. The process was continued with neutralization process, filtration process and ended with analysis using UV-Vis Spectroscopy at 265 nm wavelengths. The results showed that the highest glucose concentration extracted was from mango peel waste (4.752 mg/mL) with 2% of NaOH in 3 grams mass loading, followed by banana peel waste (3.824 mg/mL) and pineapple peel waste (2.179 mg/mL) with 3% of NaOH in 5 grams and 6 grams mass loading respectively. Meanwhile, 4 grams of pineapple peel waste in 1% of NaOH resulted to the lowest glucose concentration (0.992 mg/mL). It is shown that the concentration of glucose extracted from the fruit peel increases with increasing mass loading and alkaline concentration increase

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