Effect of Thermal Treatment on Kelulut Honey Towards the Physicochemical, Antioxidant and Antimicrobial Properties
Heat treatment on commercial honey could deteriorate its quality associated with physicochemical and bioactive capacities. In this study, the effects of thermal treatment (50 °C, 75 °C and 90 °C) on the physicochemical properties (i.e., pH, colour intensity), total phenolic content and total flavo...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
UNIMAS Publisher
2022
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/41434/1/Effect%20of%20Thermal%20-%20Copy.pdf http://ir.unimas.my/id/eprint/41434/ https://publisher.unimas.my/ojs/index.php/BJRST/article/view/4645-264-%2839-47%29 |
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| Summary: | Heat treatment on commercial honey could deteriorate its quality associated with physicochemical and bioactive
capacities. In this study, the effects of thermal treatment (50 °C, 75 °C and 90 °C) on the physicochemical
properties (i.e., pH, colour intensity), total phenolic content and total flavonoid content were investigated on the
Kelulut honey. The results revealed a significant increase in TFC (0.154 mg QE/g honey) for the heat-treated
Kelulut honey compared to the control (0.085 mg QE/g honey). The antioxidant activity of the heat-treated honey
revealed an increase in 2, 2- Diphenyl-1-picrylhydrazyl levels by 42%, while the ferric reducing antioxidant power
levels were reduced significantly by 22.4% compared to the untreated honey. The antimicrobial activities of heattreated honey declined against Staphylococcus aureus, Bacillus cereus, Escherichia coli, and Salmonella typhi
bacteria at 75 °C and 90 °C. Based on the effects observed in the bioactive capacities of the heat-treated honey, it
is therefore recommended to minimize thermal treatment on the honey during the processing to maintain its natural
nutritional quality and benefit consumers. |
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