Determination of antioxidants in pineapple waste / Anizah Mahmod

The experiment was conducted to identify the antioxidants activities in the pineapple waste. Three sample were used which are leaves, crown and skin. Three methods were used which are 1,1-diphenyl-2-picrylhydrazyl (DPPH), Ferric Reducing Antioxidant Potential (FRAP) and Total Phenolic Content (TPC)....

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Main Author:	Mahmod, Anizah
Format:	Student Project
Language:	English
Published:	Faculty of Applied Sciences 2009
Subjects:	Extraction (Chemistry) Analytical chemistry
Online Access:	http://ir.uitm.edu.my/id/eprint/23248/ http://ir.uitm.edu.my/id/eprint/23248/1/PPb_ANIZAH%20MAHMOD%20AS%2009_5.pdf

id	uitm-23248
recordtype	eprints
spelling	uitm-232482019-02-22T02:22:35Z http://ir.uitm.edu.my/id/eprint/23248/ Determination of antioxidants in pineapple waste / Anizah Mahmod Mahmod, Anizah Extraction (Chemistry) Analytical chemistry The experiment was conducted to identify the antioxidants activities in the pineapple waste. Three sample were used which are leaves, crown and skin. Three methods were used which are 1,1-diphenyl-2-picrylhydrazyl (DPPH), Ferric Reducing Antioxidant Potential (FRAP) and Total Phenolic Content (TPC). UV-Visible Spectrophotometer was using in this analysis. Using ethanol, leaves show the greatest in the TPC compared to the skin and crown. Leaves shows 11.83mg/100g, followed by crown, 7.49mg/100g and skin, 1.90mg/100g. The results were expressed in Gallic Acid Equivalent (GAE). Leaves also showed the highest scavenging effect compared to the crown and skin. FRAP measures the ability of the extract to donate electron to Fe (III). The higher the FRAP value, the greater is the antioxidant activity. The highest value of FRAP was leaves followed by crown and skin. Crown and skin showed quite similar of ferric reducing potential. Faculty of Applied Sciences 2009 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/23248/1/PPb_ANIZAH%20MAHMOD%20AS%2009_5.pdf Mahmod, Anizah (2009) Determination of antioxidants in pineapple waste / Anizah Mahmod. [Student Project] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Extraction (Chemistry) Analytical chemistry
spellingShingle	Extraction (Chemistry) Analytical chemistry Mahmod, Anizah Determination of antioxidants in pineapple waste / Anizah Mahmod
description	The experiment was conducted to identify the antioxidants activities in the pineapple waste. Three sample were used which are leaves, crown and skin. Three methods were used which are 1,1-diphenyl-2-picrylhydrazyl (DPPH), Ferric Reducing Antioxidant Potential (FRAP) and Total Phenolic Content (TPC). UV-Visible Spectrophotometer was using in this analysis. Using ethanol, leaves show the greatest in the TPC compared to the skin and crown. Leaves shows 11.83mg/100g, followed by crown, 7.49mg/100g and skin, 1.90mg/100g. The results were expressed in Gallic Acid Equivalent (GAE). Leaves also showed the highest scavenging effect compared to the crown and skin. FRAP measures the ability of the extract to donate electron to Fe (III). The higher the FRAP value, the greater is the antioxidant activity. The highest value of FRAP was leaves followed by crown and skin. Crown and skin showed quite similar of ferric reducing potential.
format	Student Project
author	Mahmod, Anizah
author_facet	Mahmod, Anizah
author_sort	Mahmod, Anizah
title	Determination of antioxidants in pineapple waste / Anizah Mahmod
title_short	Determination of antioxidants in pineapple waste / Anizah Mahmod
title_full	Determination of antioxidants in pineapple waste / Anizah Mahmod
title_fullStr	Determination of antioxidants in pineapple waste / Anizah Mahmod
title_full_unstemmed	Determination of antioxidants in pineapple waste / Anizah Mahmod
title_sort	determination of antioxidants in pineapple waste / anizah mahmod
publisher	Faculty of Applied Sciences
publishDate	2009
url	http://ir.uitm.edu.my/id/eprint/23248/ http://ir.uitm.edu.my/id/eprint/23248/1/PPb_ANIZAH%20MAHMOD%20AS%2009_5.pdf
first_indexed	2023-09-18T23:10:23Z
last_indexed	2023-09-18T23:10:23Z
_version_	1777418762344988672

Determination of antioxidants in pineapple waste / Anizah Mahmod

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