Reducing sugar in banana peels with different extraction methods

Kamaruddin, Aliah Afiqah (2019) Reducing sugar in banana peels with different extraction methods. [Project Paper] (Submitted)

Text lp FPSK3 2019 27.pdf Download (7MB)

Abstract

The abundance of agricultural waste left untreated in the landfills can lead to environmental problems. Fruit peels are example of agricultural waste that can contribute to such problem. Due to that, its utilization is important and one way to do that is by exploring their nutrients and bioactive compounds. Notwithstanding, there is lack of information on reducing sugar as well as the optimum method to extract the reducing sugar from the peel. Thus, this study was conducted to determine the optimum method to extract reducing sugar in Pisang Abu peel and Pisang Tanduk peel. The banana peels were collected from banana chips factories in Banting and Petaling Jaya. The peels were then washed, freeze-dried, homogenized and further analyzed using water-steam, acid, and alkaline pre-treatment before underwent acid hydrolysis. The reducing sugar in the banana peels was determined using the phenol-sulfuric acid method and measured using a spectrophotometer. A standard curve was plotted to measure the reducing sugar in banana peels. The reducing sugar yielded in this study was expressed in glucose equivalent. With no pre-treatment, Pisang Abu peel had significantly (p < 0.05) higher glucose, (0.881 ± 0.007 mg/ml), followed by watersteam (0.553 ± 0.000 mg/ml), acid (0.286 ± 0.001 mg/ml) and alkaline pre-treatment methods (0.132 ± 0.000 mg/ml). Similarly, Pisang Tanduk peel with no pre-treatment had significantly (p < 0.05) higher glucose (0.278 ± 0.000 mg/ml), followed by watersteam (0.245 ± 0.000 mg/ml), acid (0.048 ± 0.000 mg/ml) and alkaline pre-treatment (0.044 ± 0.000 mg/ml). Overall findings showed that Pisang Abu peel yielded higher glucose compared to Pisang Tanduk peel. Although studies in the literature indicated that pre-treatment processes can increase the yield of glucose release from its matrix, the present study found contradicted finding. Perhaps, further analysis is required to investigate other variables that can affect the outcome in this study.

Item Type:	Project Paper
Subjects:	R Medicine > RM Therapeutics. Pharmacology
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Ms Norafizah Radzuan
Date Deposited:	24 Feb 2026 07:58
Last Modified:	24 Feb 2026 07:58
URI:	http://psaspb.upm.edu.my/id/eprint/2727

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