Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail

Plant condensed tannins (proanthocyanidins, PAs) have both positive and negative effects on feed digestibility and animal performance, depending both on quality and biological activity of the tannins that are present. In this project, analyses of condensed tannins (PAs) are examined. Our focus is on...

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Main Author:	Mail, Noor Fadlyana
Format:	Student Project
Language:	English
Published:	Faculty of Applied Sciences 2009
Subjects:	Analytical chemistry Chemical engineering
Online Access:	http://ir.uitm.edu.my/id/eprint/23129/ http://ir.uitm.edu.my/id/eprint/23129/1/PPb_NOOR%20FADLYANA%20MAIL%20AS%2009_5.pdf

id	uitm-23129
recordtype	eprints
spelling	uitm-231292019-02-25T07:10:40Z http://ir.uitm.edu.my/id/eprint/23129/ Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail Mail, Noor Fadlyana Analytical chemistry Chemical engineering Plant condensed tannins (proanthocyanidins, PAs) have both positive and negative effects on feed digestibility and animal performance, depending both on quality and biological activity of the tannins that are present. In this project, analyses of condensed tannins (PAs) are examined. Our focus is on the analytical method used to evaluate tannins. The section on methods is subdivided into a discussion of methods to determine the amount of condensed tannins or total phenolics in a sample and a section on extracted condensed tannins by using different solvents. The effects of different extracting solvents, used in Butanol-hydrochloric acid method, on the total condensed tannins contents of green tea, black tea and oolong tea were studied. Water and organic solvents, used in mixtures: acetone/water/ (80/20) and methanol/water (80/20), significantly affected total condensed tannins content. The results showed that solvents with different polarities had significant effects on total of condensed tannins. The condensed tannins of samples were extracted using methanol and acetone at same concentrations with water. Among solvents tested, 80% acetone, containing 20% water, extracted a maximum amount of condensed tannins from green tea, black tea and oolong tea. Condensed tannins extracted were assayed using a 2% ferric ammonium sulphate solution containing 2M HC1 (v/v). The green tea contains the higher amount of condensed tannin in both solvent extraction following by oolong tea and black tea. Faculty of Applied Sciences 2009 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/23129/1/PPb_NOOR%20FADLYANA%20MAIL%20AS%2009_5.pdf Mail, Noor Fadlyana (2009) Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail. [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	Analytical chemistry Chemical engineering
spellingShingle	Analytical chemistry Chemical engineering Mail, Noor Fadlyana Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail
description	Plant condensed tannins (proanthocyanidins, PAs) have both positive and negative effects on feed digestibility and animal performance, depending both on quality and biological activity of the tannins that are present. In this project, analyses of condensed tannins (PAs) are examined. Our focus is on the analytical method used to evaluate tannins. The section on methods is subdivided into a discussion of methods to determine the amount of condensed tannins or total phenolics in a sample and a section on extracted condensed tannins by using different solvents. The effects of different extracting solvents, used in Butanol-hydrochloric acid method, on the total condensed tannins contents of green tea, black tea and oolong tea were studied. Water and organic solvents, used in mixtures: acetone/water/ (80/20) and methanol/water (80/20), significantly affected total condensed tannins content. The results showed that solvents with different polarities had significant effects on total of condensed tannins. The condensed tannins of samples were extracted using methanol and acetone at same concentrations with water. Among solvents tested, 80% acetone, containing 20% water, extracted a maximum amount of condensed tannins from green tea, black tea and oolong tea. Condensed tannins extracted were assayed using a 2% ferric ammonium sulphate solution containing 2M HC1 (v/v). The green tea contains the higher amount of condensed tannin in both solvent extraction following by oolong tea and black tea.
format	Student Project
author	Mail, Noor Fadlyana
author_facet	Mail, Noor Fadlyana
author_sort	Mail, Noor Fadlyana
title	Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail
title_short	Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail
title_full	Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail
title_fullStr	Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail
title_full_unstemmed	Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail
title_sort	effect of solvent on percentages yields of condensed tannin in different types of tea (camellia sinensis) / noor fadlyana mail
publisher	Faculty of Applied Sciences
publishDate	2009
url	http://ir.uitm.edu.my/id/eprint/23129/ http://ir.uitm.edu.my/id/eprint/23129/1/PPb_NOOR%20FADLYANA%20MAIL%20AS%2009_5.pdf
first_indexed	2023-09-18T23:10:07Z
last_indexed	2023-09-18T23:10:07Z
_version_	1777418746168606720

Effect of solvent on percentages yields of condensed tannin in different types of tea (Camellia Sinensis) / Noor Fadlyana Mail

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