Comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana
Impatiens walleriana is an ornamental plant known for its rich antioxidant and antibacterial properties. These objectives of this study were to elucidate the impacts of various dehydration treatments (microwave, oven-, and conventional air-drying) on the antioxidant compounds of the pink and purple...
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| Format: | Conference or Workshop Item |
| Language: | English |
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AIP Publishing
2025
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| Online Access: | http://umpir.ump.edu.my/id/eprint/43794/1/Comparative%20analysis%20of%20dehydration%20techniques%20on%20phytochemical.pdf |
| _version_ | 1824451788742328320 |
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| author | Tan, Suat Hian Sin, Phin Yin Ros Azlinawati, Ramli Mohd Hairul, Ab. Rahim Nyuk, Ling Ma |
| author_facet | Tan, Suat Hian Sin, Phin Yin Ros Azlinawati, Ramli Mohd Hairul, Ab. Rahim Nyuk, Ling Ma |
| author_sort | Tan, Suat Hian |
| collection | UMP |
| description | Impatiens walleriana is an ornamental plant known for its rich antioxidant and antibacterial properties. These objectives of this study were to elucidate the impacts of various dehydration treatments (microwave, oven-, and conventional air-drying) on the antioxidant compounds of the pink and purple flower I. walleriana. Furthermore, the antibacterial properties of microwave-dried leaf extract against selected Gram-positive and Gram-negative bacterial strains were also tested. The results demonstrated that dehydration techniques significantly affected (p<0.05) the phenolic content, with the total phenolic content ranking in descending order: microwave drying > oven drying > conventional air drying. Leaf extracts had the highest total flavonoid content compared to stem extracts. Notably, the pink flower variety exhibited higher flavonoid content (0.528-0.541 mg QE/100g) than the purple variety, likely due to petal color variation. Microwave-dried leaf extracts were evaluated for antibacterial activity using the disc diffusion method. Both pink and purple flower varieties demonstrated inhibition of Gram-positive and Gram-negative bacteria, with the pink flower showing greater antibacterial effects. Both flower types were particularly effective against Escherichia coli and less against Pseudomonas aeruginosa. The antibacterial activity of I. walleriana against E. coli was nearly twice as strong as that of synthetic antibiotics. In conclusion, I. walleriana, particularly when microwave-dried, is a potent source of natural antioxidants and antibacterial agents. |
| first_indexed | 2025-02-19T02:40:12Z |
| format | Conference or Workshop Item |
| id | UMPir43794 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2025-02-19T02:40:12Z |
| publishDate | 2025 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | UMPir437942025-02-12T02:04:49Z http://umpir.ump.edu.my/id/eprint/43794/ Comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana Tan, Suat Hian Sin, Phin Yin Ros Azlinawati, Ramli Mohd Hairul, Ab. Rahim Nyuk, Ling Ma Q Science (General) QD Chemistry TP Chemical technology Impatiens walleriana is an ornamental plant known for its rich antioxidant and antibacterial properties. These objectives of this study were to elucidate the impacts of various dehydration treatments (microwave, oven-, and conventional air-drying) on the antioxidant compounds of the pink and purple flower I. walleriana. Furthermore, the antibacterial properties of microwave-dried leaf extract against selected Gram-positive and Gram-negative bacterial strains were also tested. The results demonstrated that dehydration techniques significantly affected (p<0.05) the phenolic content, with the total phenolic content ranking in descending order: microwave drying > oven drying > conventional air drying. Leaf extracts had the highest total flavonoid content compared to stem extracts. Notably, the pink flower variety exhibited higher flavonoid content (0.528-0.541 mg QE/100g) than the purple variety, likely due to petal color variation. Microwave-dried leaf extracts were evaluated for antibacterial activity using the disc diffusion method. Both pink and purple flower varieties demonstrated inhibition of Gram-positive and Gram-negative bacteria, with the pink flower showing greater antibacterial effects. Both flower types were particularly effective against Escherichia coli and less against Pseudomonas aeruginosa. The antibacterial activity of I. walleriana against E. coli was nearly twice as strong as that of synthetic antibiotics. In conclusion, I. walleriana, particularly when microwave-dried, is a potent source of natural antioxidants and antibacterial agents. AIP Publishing 2025-01-25 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/43794/1/Comparative%20analysis%20of%20dehydration%20techniques%20on%20phytochemical.pdf Tan, Suat Hian and Sin, Phin Yin and Ros Azlinawati, Ramli and Mohd Hairul, Ab. Rahim and Nyuk, Ling Ma (2025) Comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana. In: AIP Conference Proceedings. AIP Conference Proceedings; 2nd International Conference on Industry-Academia Initiatives In Biotechnology And Chemistry (iCIABC2023) , 27 - 28 November 2023 , Kuantan. pp. 1-9., 3275 (040002). ISSN 1551-7616 (Published) https://doi.org/10.1063/5.0248852 |
| spellingShingle | Q Science (General) QD Chemistry TP Chemical technology Tan, Suat Hian Sin, Phin Yin Ros Azlinawati, Ramli Mohd Hairul, Ab. Rahim Nyuk, Ling Ma Comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana |
| title | Comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana |
| title_full | Comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana |
| title_fullStr | Comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana |
| title_full_unstemmed | Comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana |
| title_short | Comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana |
| title_sort | comparative analysis of dehydration techniques on phytochemical and antibacterial properties on pink and purple flowers impatiens walleriana |
| topic | Q Science (General) QD Chemistry TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/43794/1/Comparative%20analysis%20of%20dehydration%20techniques%20on%20phytochemical.pdf |
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