Agung, Mascellia Tifanny and Santoso, Filiana and Sutanto, Hery Antioxidant, Antimicrobial, and Preservation Activities Evaluation of Tropical Fruit Peel Extracts. In: PATPI. (Unpublished)
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Abstract
The ethanolic peel extract of five different fruits i.e. mangosteen, custard apple, passion fruit, pomelo and rambutan were analyzed for their antioxidant activity, total phenolic content, flavonoids content, proanthocyanidins content, cytotoxicity, and antimicrobial activity. The antioxidant activity analysis was done using DPPH radical scavenging method. Rambutan was found to have the highest antioxidant activity (IC50=40.26ppm). Moreover, the antioxidant stability was observed over a six-week storage period at 4oC. Pomelo was found to have the most stable antioxidant compounds. The highest total phenolic content was found in rambutan peel extract (101.17mg/g GAE). Whereas, mangosteen peel extract had the highest flavonoids and proanthocyanidins contents (110.56mg/g QE; 483.26mg/g CE). The cytotoxicity of the fruit peel extracts was also examined, where custard apple and passion fruit were found to exhibit the highest cytotoxicity potential (LC50=124.97ppm). The antimicrobial activity of all fruit peel extracts was assessed using broth macrodilution method against Salmonella sp. Custard apple, passion fruit and pomelo peel extracts were then applied to mayonnaise product as preservatives as they had the strongest antimicrobial activity. The TPC results showed no preserving activity of the fruit peel extracts that could be found. The stability of the antimicrobial activity of the fruit peel extracts was examined at room temperature over four days of storage period. It was found that the antimicrobial agent of pomelo was the most stable among those three extracts.
| Item Type: | Conference or Workshop Item (Paper) |
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| Uncontrolled Keywords: | Antimicrobial; Antioxidant; Extract; Fruit Peels |
| Subjects: | T Technology > TP Chemical technology > TP368 Food processing and manufacture |
| Depositing User: | Faisal Ifzaldi |
| Date Deposited: | 14 Aug 2020 15:13 |
| Last Modified: | 12 Apr 2023 04:20 |
| URI: | http://repository.sgu.ac.id/id/eprint/1740 |
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