The feasibility study of physicochemical properties of Sarawak Liberica sp. coffee pulp

Muhamad Eddy Boli, . and Nurhuda Syahirah Ismail, . and Ngieng Ngui Sng, . and Dayang Salwani Awang Adeni, . and Nillian Elexson, . and Awang Ahmad Sallehin Awang Hussini, . and Nick Laurence Buyong, . The feasibility study of physicochemical properties of Sarawak Liberica sp. coffee pulp. pp. 477-490. ISSN 1511-3701

Liberica coffee is a minor species that is planted all around the world. Therefore there is little study conducted on this coffee species as only one percent is cultivated all around the world. In Malaysia there is still no research focusing on coffee pulp from Sarawak liberica sp. and thus leading to this study. The wastes and by-product such as coffee pulps will become the residues as they were not needed in processing the coffee. This will create environmental pollution. Thus this research aimed to evaluate the feasibility study on the physicochemical properties of coffee pulp from Sarawak liberica sp. including determination by colorimetric assays for phenolic and flavonoid content antioxidant activity and reducing sugar analysis. The antibacterial activities of coffee pulp were evaluated against Grampositive Staphylococcus aureus and Gramnegative Salmonella typhimurium using a disc diffusion method. As a result Sarawak liberica sp. coffee pulp extract contained total phenolic content of 24.24 mg GAE/g of coffee pulp a total flavonoid content of 39.39 mg QE/g of coffee pulp DPPH scavenging activity of 92.24 0.03 reducing sugar analysis of 13.13 mg GE/g of coffee pulp and there was no significant effect of antibacterial activities. Therefore the physicochemical study determination in this study would add values toward Sarawak liberica sp. coffee pulp by-product and thus reducing the disposal of Liberica coffee wastes in the future.

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Abstract

Liberica coffee is a minor species that is planted all around the world. Therefore there is little study conducted on this coffee species as only one percent is cultivated all around the world. In Malaysia there is still no research focusing on coffee pulp from Sarawak liberica sp. and thus leading to this study. The wastes and by-product such as coffee pulps will become the residues as they were not needed in processing the coffee. This will create environmental pollution. Thus this research aimed to evaluate the feasibility study on the physicochemical properties of coffee pulp from Sarawak liberica sp. including determination by colorimetric assays for phenolic and flavonoid content antioxidant activity and reducing sugar analysis. The antibacterial activities of coffee pulp were evaluated against Grampositive Staphylococcus aureus and Gramnegative Salmonella typhimurium using a disc diffusion method. As a result Sarawak liberica sp. coffee pulp extract contained total phenolic content of 24.24 mg GAE/g of coffee pulp a total flavonoid content of 39.39 mg QE/g of coffee pulp DPPH scavenging activity of 92.24 0.03 reducing sugar analysis of 13.13 mg GE/g of coffee pulp and there was no significant effect of antibacterial activities. Therefore the physicochemical study determination in this study would add values toward Sarawak liberica sp. coffee pulp by-product and thus reducing the disposal of Liberica coffee wastes in the future.

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Item Type:	Article
AGROVOC Term:	Liberica coffee
AGROVOC Term:	Feasibility studies
AGROVOC Term:	Coffee pulp
AGROVOC Term:	Byproducts
AGROVOC Term:	Agricultural wastes
AGROVOC Term:	Physicochemical properties
AGROVOC Term:	Phenolic content
AGROVOC Term:	Flavonoids
AGROVOC Term:	Antioxidants
AGROVOC Term:	Antibacterial properties
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/9538

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