Phenolic profile and antioxidant activities of Rambutan (Nephelium lappaceum) and Pulasan (Nephelium mutabile) peels
Rambutan (Nephelium lappaceum) and pulasan (Nephelium mutabile) are consumed fresh, canned or processed in human daily life, and the peels are usually discarded as waste. This research is aimed to identify the phenolic compounds and antioxidant activities of the peels of both species. Methanol extra...
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| Format: | Conference or Workshop Item |
| Language: | English English |
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Malaysian Institute of Chemistry
2023
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| Online Access: | http://umpir.ump.edu.my/id/eprint/38704/ http://umpir.ump.edu.my/id/eprint/38704/1/Phenolic%20profile%20and%20antioxidant%20activities%20of%20Rambutan%20%28Nephelium%20lappaceum%29.pdf http://umpir.ump.edu.my/id/eprint/38704/7/Phenolic%20profile%20and%20antioxidant%20activities%20of%20Rambutan%20%28Nephelium%20lappaceum%29%20and%20Pulasan%20%28Nephelium%20mutabile%29%20peels_ABS.pdf |
| _version_ | 1848825576356315136 |
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| author | Izzah Hayati, Yahya Hazrulrizawati Abd, Hamid |
| author_facet | Izzah Hayati, Yahya Hazrulrizawati Abd, Hamid |
| author_sort | Izzah Hayati, Yahya |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Rambutan (Nephelium lappaceum) and pulasan (Nephelium mutabile) are consumed fresh, canned or processed in human daily life, and the peels are usually discarded as waste. This research is aimed to identify the phenolic compounds and antioxidant activities of the peels of both species. Methanol extract, ethyl acetate and diethyl ether of rambutan and pulasan peels were evaluated for total phenolic content, total flavonoid content and antioxidant activities including α, α-diphenyl-β-picrylhydrazyl (DPPH) radical scavenging activity, ferric reducing antioxidant power (FRAP) and cupric reducing antioxidant capacity (CUPRAC). The phenolic compounds were identified in the methanol extract of both rambutan and pulasan peels by using UPLC-QTOF/MS. The methanol peel extract for both rambutan and pulasan exhibits the highest total phenolic and total flavonoid content. The methanol extracts of both rambutan and pulasan peels were found to have high antioxidant activities through three different antioxidant assays. The order of antioxidant activity for various extracts was methanol > ethyl acetate > diethyl ether. The abundant phenolic compounds in methanol peel extracts are geraniin, mulberrofuran A, gigantol and arecatannin. The results showed methanol extract of rambutan and pulasan peels with high content of phenolics and the greatest antioxidant properties have the potential to be developed as a functional food. |
| first_indexed | 2025-11-15T03:31:07Z |
| format | Conference or Workshop Item |
| id | ump-38704 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:31:07Z |
| publishDate | 2023 |
| publisher | Malaysian Institute of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-387042023-11-06T04:15:54Z http://umpir.ump.edu.my/id/eprint/38704/ Phenolic profile and antioxidant activities of Rambutan (Nephelium lappaceum) and Pulasan (Nephelium mutabile) peels Izzah Hayati, Yahya Hazrulrizawati Abd, Hamid HD28 Management. Industrial Management Q Science (General) T Technology (General) Rambutan (Nephelium lappaceum) and pulasan (Nephelium mutabile) are consumed fresh, canned or processed in human daily life, and the peels are usually discarded as waste. This research is aimed to identify the phenolic compounds and antioxidant activities of the peels of both species. Methanol extract, ethyl acetate and diethyl ether of rambutan and pulasan peels were evaluated for total phenolic content, total flavonoid content and antioxidant activities including α, α-diphenyl-β-picrylhydrazyl (DPPH) radical scavenging activity, ferric reducing antioxidant power (FRAP) and cupric reducing antioxidant capacity (CUPRAC). The phenolic compounds were identified in the methanol extract of both rambutan and pulasan peels by using UPLC-QTOF/MS. The methanol peel extract for both rambutan and pulasan exhibits the highest total phenolic and total flavonoid content. The methanol extracts of both rambutan and pulasan peels were found to have high antioxidant activities through three different antioxidant assays. The order of antioxidant activity for various extracts was methanol > ethyl acetate > diethyl ether. The abundant phenolic compounds in methanol peel extracts are geraniin, mulberrofuran A, gigantol and arecatannin. The results showed methanol extract of rambutan and pulasan peels with high content of phenolics and the greatest antioxidant properties have the potential to be developed as a functional food. Malaysian Institute of Chemistry 2023-06-29 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/38704/1/Phenolic%20profile%20and%20antioxidant%20activities%20of%20Rambutan%20%28Nephelium%20lappaceum%29.pdf pdf en http://umpir.ump.edu.my/id/eprint/38704/7/Phenolic%20profile%20and%20antioxidant%20activities%20of%20Rambutan%20%28Nephelium%20lappaceum%29%20and%20Pulasan%20%28Nephelium%20mutabile%29%20peels_ABS.pdf Izzah Hayati, Yahya and Hazrulrizawati Abd, Hamid (2023) Phenolic profile and antioxidant activities of Rambutan (Nephelium lappaceum) and Pulasan (Nephelium mutabile) peels. In: Malaysian Journal of Chemistry; 3rd IKMPB Online Symposium 2023 - Innovation in Chemistry Towards Sustainable Development , 2023 , Online. pp. 450-457., 25 (3). ISSN 1511-2292 (Published) https://doi.org/10.55373/MJCHEM.V25I3.450 |
| spellingShingle | HD28 Management. Industrial Management Q Science (General) T Technology (General) Izzah Hayati, Yahya Hazrulrizawati Abd, Hamid Phenolic profile and antioxidant activities of Rambutan (Nephelium lappaceum) and Pulasan (Nephelium mutabile) peels |
| title | Phenolic profile and antioxidant activities of Rambutan (Nephelium lappaceum) and Pulasan (Nephelium mutabile) peels |
| title_full | Phenolic profile and antioxidant activities of Rambutan (Nephelium lappaceum) and Pulasan (Nephelium mutabile) peels |
| title_fullStr | Phenolic profile and antioxidant activities of Rambutan (Nephelium lappaceum) and Pulasan (Nephelium mutabile) peels |
| title_full_unstemmed | Phenolic profile and antioxidant activities of Rambutan (Nephelium lappaceum) and Pulasan (Nephelium mutabile) peels |
| title_short | Phenolic profile and antioxidant activities of Rambutan (Nephelium lappaceum) and Pulasan (Nephelium mutabile) peels |
| title_sort | phenolic profile and antioxidant activities of rambutan (nephelium lappaceum) and pulasan (nephelium mutabile) peels |
| topic | HD28 Management. Industrial Management Q Science (General) T Technology (General) |
| url | http://umpir.ump.edu.my/id/eprint/38704/ http://umpir.ump.edu.my/id/eprint/38704/ http://umpir.ump.edu.my/id/eprint/38704/1/Phenolic%20profile%20and%20antioxidant%20activities%20of%20Rambutan%20%28Nephelium%20lappaceum%29.pdf http://umpir.ump.edu.my/id/eprint/38704/7/Phenolic%20profile%20and%20antioxidant%20activities%20of%20Rambutan%20%28Nephelium%20lappaceum%29%20and%20Pulasan%20%28Nephelium%20mutabile%29%20peels_ABS.pdf |