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Phytochemical screening and antioxidant activity of Oryza sativa Linn. (glutinous black rice) / Jovinus Saidi

In the present study, the methanolic extract of Oryza sativa Linn. (Sabah glutinous black rice) was screened for their phytochemical substances, antioxidant activity and scavenging properties. The phytochemical screening revealed that alkaloid, carbohydrate, reducing sugar, saponin, phytosterol, phe...

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Main Author: Saidi, Jovinus
Format: Student Project
Language:English
Published: 2013
Subjects:
Plant anatomy
Online Access:https://ir.uitm.edu.my/id/eprint/107818/1/107818.pdf
https://ir.uitm.edu.my/id/eprint/107818/
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spelling my.uitm.ir.1078182024-12-20T08:59:23Z https://ir.uitm.edu.my/id/eprint/107818/ Phytochemical screening and antioxidant activity of Oryza sativa Linn. (glutinous black rice) / Jovinus Saidi Saidi, Jovinus Plant anatomy In the present study, the methanolic extract of Oryza sativa Linn. (Sabah glutinous black rice) was screened for their phytochemical substances, antioxidant activity and scavenging properties. The phytochemical screening revealed that alkaloid, carbohydrate, reducing sugar, saponin, phytosterol, phenol, tannin, flavonoid, protein, steroid and terpenoid are present in the pigmented glutinous black rice. The crude extract was evaluated for antioxidant activity using 2, 2-diphenyl-l-picrylhydrazyl (DPPH) assay at different concentration of pigmented rice extract (Glutinous black rice) and compared with the ascorbic acid (AA) standard. Meanwhile scavenging activity was measured by 2, 2-diphenyl-lpicrylhydrazyl (DPPH) radicals. The result indicate that the antioxidant activity of the extracts differed and was dependent on the concentration of the extract where the black rice extract shows higher scavenging activity in higher concentration of black rice extract. The highest percentage of DPPH scavenging activity was 86.82% at the concentration of 0.3mg/ml and the lowest is 78.03% with concentration 0.025mg/ml. Therefore, the Sabah glutinous black rice shows promising bioactive compounds with high nutritive values. 2013 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/107818/1/107818.pdf Phytochemical screening and antioxidant activity of Oryza sativa Linn. (glutinous black rice) / Jovinus Saidi. (2013) [Student Project] (Submitted)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Plant anatomy
spellingShingle Plant anatomy
Saidi, Jovinus
Phytochemical screening and antioxidant activity of Oryza sativa Linn. (glutinous black rice) / Jovinus Saidi
description In the present study, the methanolic extract of Oryza sativa Linn. (Sabah glutinous black rice) was screened for their phytochemical substances, antioxidant activity and scavenging properties. The phytochemical screening revealed that alkaloid, carbohydrate, reducing sugar, saponin, phytosterol, phenol, tannin, flavonoid, protein, steroid and terpenoid are present in the pigmented glutinous black rice. The crude extract was evaluated for antioxidant activity using 2, 2-diphenyl-l-picrylhydrazyl (DPPH) assay at different concentration of pigmented rice extract (Glutinous black rice) and compared with the ascorbic acid (AA) standard. Meanwhile scavenging activity was measured by 2, 2-diphenyl-lpicrylhydrazyl (DPPH) radicals. The result indicate that the antioxidant activity of the extracts differed and was dependent on the concentration of the extract where the black rice extract shows higher scavenging activity in higher concentration of black rice extract. The highest percentage of DPPH scavenging activity was 86.82% at the concentration of 0.3mg/ml and the lowest is 78.03% with concentration 0.025mg/ml. Therefore, the Sabah glutinous black rice shows promising bioactive compounds with high nutritive values.
format Student Project
author Saidi, Jovinus
author_facet Saidi, Jovinus
author_sort Saidi, Jovinus
title Phytochemical screening and antioxidant activity of Oryza sativa Linn. (glutinous black rice) / Jovinus Saidi
title_short Phytochemical screening and antioxidant activity of Oryza sativa Linn. (glutinous black rice) / Jovinus Saidi
title_full Phytochemical screening and antioxidant activity of Oryza sativa Linn. (glutinous black rice) / Jovinus Saidi
title_fullStr Phytochemical screening and antioxidant activity of Oryza sativa Linn. (glutinous black rice) / Jovinus Saidi
title_full_unstemmed Phytochemical screening and antioxidant activity of Oryza sativa Linn. (glutinous black rice) / Jovinus Saidi
title_sort phytochemical screening and antioxidant activity of oryza sativa linn. (glutinous black rice) / jovinus saidi
publishDate 2013
url https://ir.uitm.edu.my/id/eprint/107818/1/107818.pdf
https://ir.uitm.edu.my/id/eprint/107818/
_version_ 1819914007560060928
score 13.223943

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