Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin

Condensed Tannin (CT) is a water-soluble phenolic compound. CT also known as Proanthocyanidins (PAs) are oligomers and polymers of flavan-3-ol units. This compound comprise from a group of polyhydroxyflavan-3-ol oligomers and polymers linked by carbon-carbon bond between flavanol subunit. The functi...

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Main Author:	Khairudin, Siti Hawa
Format:	Student Project
Language:	English
Published:	Faculty of Applied Sciences 2009
Subjects:	Extraction (Chemistry) Botanical chemistry. Phytochemicals Cacao. Chocolate. Cocoa. Cocoa processing
Online Access:	http://ir.uitm.edu.my/id/eprint/22983/ http://ir.uitm.edu.my/id/eprint/22983/1/PPb_SITI%20HAWA%20KHAIRUDIN%20AS%2009_5.pdf

id	uitm-22983
recordtype	eprints
spelling	uitm-229832019-02-01T02:46:09Z http://ir.uitm.edu.my/id/eprint/22983/ Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin Khairudin, Siti Hawa Extraction (Chemistry) Botanical chemistry. Phytochemicals Cacao. Chocolate. Cocoa. Cocoa processing Condensed Tannin (CT) is a water-soluble phenolic compound. CT also known as Proanthocyanidins (PAs) are oligomers and polymers of flavan-3-ol units. This compound comprise from a group of polyhydroxyflavan-3-ol oligomers and polymers linked by carbon-carbon bond between flavanol subunit. The function of CT in foods is as astringency. CT also are able to interact with biological systems or physiological effects, such as antioxidant, anti-allergy, anti-hypertensive, as well as antimicrobial activities. There is a limit of condensed tannin in human body which is not exceeding than 6% of human body weight. If do so, it will cause an anemia and precipitation in body when CT interact with enzyme and iron in body. For this study, acid-butanol method was used for analysis before determining the condensed tannin by using UV/VIS spectrophotometry instrument. For the extraction, two ratio of acetone was used for immersing the cocoa powder for 2 days. The ratio of solvent use is 70% and 80%. There have 3 samples labelled as sample A, sample B and sample C as shown in Appendix E was used for comparison. As results, sample A give the higher amount of CT followed by sample B and sample C. for the comparison of solvent ratio, 70% acetone give the higher extraction of CT compared with 80% acetone. Faculty of Applied Sciences 2009 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/22983/1/PPb_SITI%20HAWA%20KHAIRUDIN%20AS%2009_5.pdf Khairudin, Siti Hawa (2009) Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin. [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) Botanical chemistry. Phytochemicals Cacao. Chocolate. Cocoa. Cocoa processing
spellingShingle	Extraction (Chemistry) Botanical chemistry. Phytochemicals Cacao. Chocolate. Cocoa. Cocoa processing Khairudin, Siti Hawa Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin
description	Condensed Tannin (CT) is a water-soluble phenolic compound. CT also known as Proanthocyanidins (PAs) are oligomers and polymers of flavan-3-ol units. This compound comprise from a group of polyhydroxyflavan-3-ol oligomers and polymers linked by carbon-carbon bond between flavanol subunit. The function of CT in foods is as astringency. CT also are able to interact with biological systems or physiological effects, such as antioxidant, anti-allergy, anti-hypertensive, as well as antimicrobial activities. There is a limit of condensed tannin in human body which is not exceeding than 6% of human body weight. If do so, it will cause an anemia and precipitation in body when CT interact with enzyme and iron in body. For this study, acid-butanol method was used for analysis before determining the condensed tannin by using UV/VIS spectrophotometry instrument. For the extraction, two ratio of acetone was used for immersing the cocoa powder for 2 days. The ratio of solvent use is 70% and 80%. There have 3 samples labelled as sample A, sample B and sample C as shown in Appendix E was used for comparison. As results, sample A give the higher amount of CT followed by sample B and sample C. for the comparison of solvent ratio, 70% acetone give the higher extraction of CT compared with 80% acetone.
format	Student Project
author	Khairudin, Siti Hawa
author_facet	Khairudin, Siti Hawa
author_sort	Khairudin, Siti Hawa
title	Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin
title_short	Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin
title_full	Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin
title_fullStr	Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin
title_full_unstemmed	Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin
title_sort	extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / siti hawa khairudin
publisher	Faculty of Applied Sciences
publishDate	2009
url	http://ir.uitm.edu.my/id/eprint/22983/ http://ir.uitm.edu.my/id/eprint/22983/1/PPb_SITI%20HAWA%20KHAIRUDIN%20AS%2009_5.pdf
first_indexed	2023-09-18T23:09:50Z
last_indexed	2023-09-18T23:09:50Z
_version_	1777418727853129728

Extraction of condensed tannin in cocoa powder by using different ratio of solvent (acetone:water) / Siti Hawa Khairudin

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