Cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties

The aim of the study was to analyze the influence of oven thermal processing of Cosmos caudatus on the total polyphenolic content (TPC) and antioxidant capacity (DPPH) of two different solvent extracts (80% methanol, and 80% ethanol). Sonication was used to extract bioactive compounds from this her...

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Main Authors: Mediani, Ahmed, Faridah, Abas, Khatib, Alfi, Tab Chin, Ping
Format: Article
Language:English
Published: MDPI 2013
Subjects:
Online Access:http://irep.iium.edu.my/31875/
http://irep.iium.edu.my/31875/1/molecules-2013.pdf
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author Mediani, Ahmed
Faridah, Abas
Khatib, Alfi
Tab Chin, Ping
author_facet Mediani, Ahmed
Faridah, Abas
Khatib, Alfi
Tab Chin, Ping
author_sort Mediani, Ahmed
building IIUM Repository
collection Online Access
description The aim of the study was to analyze the influence of oven thermal processing of Cosmos caudatus on the total polyphenolic content (TPC) and antioxidant capacity (DPPH) of two different solvent extracts (80% methanol, and 80% ethanol). Sonication was used to extract bioactive compounds from this herb. The results showed that the optimised conditions for the oven drying method for 80% methanol and 80% ethanol were 44.5 °C for 4 h with an IC50 of 0.045 mg/mL and 43.12 °C for 4.05 h with an IC50 of 0.055 mg/mL, respectively. The predicted values for TPC under the optimised conditions for 80% methanol and 80% ethanol were 16.5 and15.8 mg GAE/100 g DW, respectively. The results obtained from this study demonstrate that Cosmos caudatus can be used as a potential source of antioxidants for food and medicinal applications.
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spelling iium-318752016-02-23T07:42:08Z http://irep.iium.edu.my/31875/ Cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties Mediani, Ahmed Faridah, Abas Khatib, Alfi Tab Chin, Ping QD Chemistry The aim of the study was to analyze the influence of oven thermal processing of Cosmos caudatus on the total polyphenolic content (TPC) and antioxidant capacity (DPPH) of two different solvent extracts (80% methanol, and 80% ethanol). Sonication was used to extract bioactive compounds from this herb. The results showed that the optimised conditions for the oven drying method for 80% methanol and 80% ethanol were 44.5 °C for 4 h with an IC50 of 0.045 mg/mL and 43.12 °C for 4.05 h with an IC50 of 0.055 mg/mL, respectively. The predicted values for TPC under the optimised conditions for 80% methanol and 80% ethanol were 16.5 and15.8 mg GAE/100 g DW, respectively. The results obtained from this study demonstrate that Cosmos caudatus can be used as a potential source of antioxidants for food and medicinal applications. MDPI 2013-08-29 Article PeerReviewed application/pdf en http://irep.iium.edu.my/31875/1/molecules-2013.pdf Mediani, Ahmed and Faridah, Abas and Khatib, Alfi and Tab Chin, Ping (2013) Cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties. Molecules , 18. pp. 10452-10464. ISSN 1420-3049 http://www.mdpi.com/1420-3049/18/9/10452 10.3390/molecules180910452
spellingShingle QD Chemistry
Mediani, Ahmed
Faridah, Abas
Khatib, Alfi
Tab Chin, Ping
Cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties
title Cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties
title_full Cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties
title_fullStr Cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties
title_full_unstemmed Cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties
title_short Cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties
title_sort cosmos caudatus as a potential source of polyphenolic compounds: optimisation of oven drying conditions and characterisation of its functional properties
topic QD Chemistry
url http://irep.iium.edu.my/31875/
http://irep.iium.edu.my/31875/
http://irep.iium.edu.my/31875/
http://irep.iium.edu.my/31875/1/molecules-2013.pdf