Radical Scavenging Activity Of Various Extracts and Varieties of Corn Silk

Irawaty, Wenny, Ayucitra *), Aning and Indraswati, Nani (0018) Radical Scavenging Activity Of Various Extracts and Varieties of Corn Silk. Radical Scavenging Activity Of Various Extracts and Varieties of Corn Silk, 13 (1). pp. 10-16. ISSN 1819-6608

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Abstract

Corn variety may result different phytochemical contents which in turn influence their antioxidant activities. In Indonesia, corn silk has not been utilized well. Therefore, we evaluated the radical scavenging activity of (1) corn silk extracts obtained from different solvents possessing different polarity, and (2) corn silk extracts from five different corn varieties. In order to perform the experiment, firstly, the selected corn silk was extracted with four solvents possessing different polarity (water, ethanol 70%, ethanol 96%, ethyl acetate). Following the extraction step, the polyphenol content in the extract was determined. From this study, the highest total phenolic content in the extract was exhibited by ethanol 70% (4.4 mg GAE/g) while it was not detected in the ethyl acetate-based extract. Additional test was performed to determine the total flavonoid content. Similar to previous finding, ethanol 70% performed the best solvent with total flavonoids reached 695 mg RE/g. Secondly, ethanol 70% was then employed to extract phenolic content in corn silk from five different varieties (P11, P21, P27, DK85, DK88). The extracts were subjected to determine their total phenolic content and radical scavenging activity. The results show P11 exhibited the highest total phenolic content (1.58 mg GAE/g) while other varieties shown similar content (0.8-1 mg GAE/g). Accordingly, the corn silk extract of P11 performed the highest radical scavenging activity with % inhibition of 78. It can be concluded that corn variety contributes significantly to the phytochemical contents that influences their ability to neutralize free radical compounds, and it is beneficial for further development of functional food.

Item Type:	Article
Uncontrolled Keywords:	corn silk, variety, antioxidant, radical scavenging activity
Subjects:	Engineering > Chemical Engineering
Divisions:	Journal Publication
Depositing User:	F.X. Hadi
Date Deposited:	23 Nov 2023 08:13
Last Modified:	24 Jan 2024 02:47
URI:	http://repository.ukwms.ac.id/id/eprint/37412

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