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Optimization of extraction conditions for flavonoids content from Citrus grandis peels

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Bibliographic Details
Main Author: Tan, See Yean
Other Authors: Dr. Zarina Zakaria (Advisor)
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis 2011
Subjects:
Flavonoids
Antioxidant
Citrus grandis (Pomelo)
Health products
Food industries
Fruit > Technological innovations
Medicine
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13137
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spelling my.unimap-131372011-07-11T00:31:52Z Optimization of extraction conditions for flavonoids content from Citrus grandis peels Tan, See Yean Dr. Zarina Zakaria (Advisor) Flavonoids Antioxidant Citrus grandis (Pomelo) Health products Food industries Fruit -- Technological innovations Medicine Access is limited to UniMAP community. Recently, the development of flavonoids become a hot topic and have received much attention from researcher because of the ability and effectiveness in reducing blood lipid, as an anti-oxidative, in assimilating cholesterol, inhibiting thrombosis and the dilating the coronary artery. In addition, epidemiological studies had proved that increased the consumption of flavonoids abundant diet leads to decrease in mortality from coronary heart disease and certain types of cancer. This implies that the extraction of flavonoids with high biological activity and high content are very important for the medical and food industry. Citrus grandis are recognized to be rich in certain phytonutrient that are vital in both health promotion and disease prevention. However, during the processing of Citrus grandis for juice, peels are the primary byproduct. If not processed, the peels become waste and a possible source of environmental pollution. In fact, phytochemicals such as flavonoids, carotenoids and pectin that contribute to health are abundant in the Citrus grandis peels. In particular, the highest amount of flavonoids (a major group of citrus secondary metabolites) occurs in the peel. In order to optimize the flavonoids content from Citrus grandis peels in this study, the condition for extraction parameters varied by different solvents (methanol and ethanol), extraction time(1-5 hours) and temperature of extraction ( 50°C-80°C ) are essential to investigate under the Design Expert software via response surface methodology (RSM). This is because time and temperature of extraction are the important parameters to be optimized in order to minimize energy cost of the process. Hence, the total content of flavonoids in citrus peels can be determined qualitatively by using coloration methods with chromogenic system of NaNO2–Al (NO3)3–NaOH and quantitatively by using VersaMax Microplate Reader. 2011-07-11T00:31:52Z 2011-07-11T00:31:52Z 2010-05 Learning Object http://hdl.handle.net/123456789/13137 en Universiti Malaysia Perlis School of Bioprocess Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Flavonoids
Antioxidant
Citrus grandis (Pomelo)
Health products
Food industries
Fruit -- Technological innovations
Medicine
spellingShingle Flavonoids
Antioxidant
Citrus grandis (Pomelo)
Health products
Food industries
Fruit -- Technological innovations
Medicine
Tan, See Yean
Optimization of extraction conditions for flavonoids content from Citrus grandis peels
description Access is limited to UniMAP community.
author2 Dr. Zarina Zakaria (Advisor)
author_facet Dr. Zarina Zakaria (Advisor)
Tan, See Yean
format Learning Object
author Tan, See Yean
author_sort Tan, See Yean
title Optimization of extraction conditions for flavonoids content from Citrus grandis peels
title_short Optimization of extraction conditions for flavonoids content from Citrus grandis peels
title_full Optimization of extraction conditions for flavonoids content from Citrus grandis peels
title_fullStr Optimization of extraction conditions for flavonoids content from Citrus grandis peels
title_full_unstemmed Optimization of extraction conditions for flavonoids content from Citrus grandis peels
title_sort optimization of extraction conditions for flavonoids content from citrus grandis peels
publisher Universiti Malaysia Perlis
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13137
_version_ 1643790756410818560
score 13.222552

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