Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract

Cosmos caudatus have high an ioxidant capacity and able to contribute to the capability to scavenge free radical ions and reduce oxidative stress. However, the antioxidants may decrease during the drying process which further reduces the functionality of the herb. The purpose of this study was to in...

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Main Author:	Shazwani , Ibrahim
Format:	Undergraduates Project Papers
Language:	English
Published:	2013
Subjects:	QK Botany
Online Access:	http://umpir.ump.edu.my/id/eprint/7570/ http://umpir.ump.edu.my/id/eprint/7570/ http://umpir.ump.edu.my/id/eprint/7570/1/SHAZWANI_BINTI_IBRAHIM.PDF

id	ump-7570
recordtype	eprints
spelling	ump-75702015-03-03T09:36:50Z http://umpir.ump.edu.my/id/eprint/7570/ Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract Shazwani , Ibrahim QK Botany Cosmos caudatus have high an ioxidant capacity and able to contribute to the capability to scavenge free radical ions and reduce oxidative stress. However, the antioxidants may decrease during the drying process which further reduces the functionality of the herb. The purpose of this study was to investigate the effect of drying methods on the antioxidant capacity of C. caudatus extract. Three different types of drying treatment were set; freeze dryer (-40°C, 72 hours), spray dryer (150°C, 20 rpm of pump setting, 50 rpm of fan setting) and oven dryer (40°C, 72 hours). In this study, Soxhiet extraction method was used and distilled water and 70% acetone (v/v) as the extraction solvent. The determination of antioxidant and ascorbic acid content were tested by DPPH assay and HPLC analysis respectively. Freeze-dried sample of 70% acetone (v/v) exhibits highest concentration of antioxidant (59.00 mgAAE/g) followed by spray-dried and oven-dried sample (37.00 mgAAE/g and 36.00 mgAAE/g) respectively. HPLC analysis shows significant results of ascorbic acid content where freeze-dried sample of 70% acetone (v/v) exhibits highest ascorbic acid concentration followed by spray-dried and oven-dried samples (1.09 mgAAE/g, 0.69 mgAAE/g and 0.48 mgAAE/g) respectively. Freeze dryer was the efficient technique for the preservation of antioxidant compounds followed by spray dryer and oven dryer. Further study is proposed by differentiating predrying temperature and drying periods used for each dryer to discover the effect of predrying temperature and drying period on the antioxidant compounds preserved. 2013-02 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7570/1/SHAZWANI_BINTI_IBRAHIM.PDF Shazwani , Ibrahim (2013) Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract. Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:75632&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QK Botany
spellingShingle	QK Botany Shazwani , Ibrahim Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract
description	Cosmos caudatus have high an ioxidant capacity and able to contribute to the capability to scavenge free radical ions and reduce oxidative stress. However, the antioxidants may decrease during the drying process which further reduces the functionality of the herb. The purpose of this study was to investigate the effect of drying methods on the antioxidant capacity of C. caudatus extract. Three different types of drying treatment were set; freeze dryer (-40°C, 72 hours), spray dryer (150°C, 20 rpm of pump setting, 50 rpm of fan setting) and oven dryer (40°C, 72 hours). In this study, Soxhiet extraction method was used and distilled water and 70% acetone (v/v) as the extraction solvent. The determination of antioxidant and ascorbic acid content were tested by DPPH assay and HPLC analysis respectively. Freeze-dried sample of 70% acetone (v/v) exhibits highest concentration of antioxidant (59.00 mgAAE/g) followed by spray-dried and oven-dried sample (37.00 mgAAE/g and 36.00 mgAAE/g) respectively. HPLC analysis shows significant results of ascorbic acid content where freeze-dried sample of 70% acetone (v/v) exhibits highest ascorbic acid concentration followed by spray-dried and oven-dried samples (1.09 mgAAE/g, 0.69 mgAAE/g and 0.48 mgAAE/g) respectively. Freeze dryer was the efficient technique for the preservation of antioxidant compounds followed by spray dryer and oven dryer. Further study is proposed by differentiating predrying temperature and drying periods used for each dryer to discover the effect of predrying temperature and drying period on the antioxidant compounds preserved.
format	Undergraduates Project Papers
author	Shazwani , Ibrahim
author_facet	Shazwani , Ibrahim
author_sort	Shazwani , Ibrahim
title	Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract
title_short	Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract
title_full	Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract
title_fullStr	Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract
title_full_unstemmed	Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract
title_sort	effect of drying method on the antioxidant capacity of cosmos caudatus extract
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/7570/ http://umpir.ump.edu.my/id/eprint/7570/ http://umpir.ump.edu.my/id/eprint/7570/1/SHAZWANI_BINTI_IBRAHIM.PDF
first_indexed	2023-09-18T22:04:18Z
last_indexed	2023-09-18T22:04:18Z
_version_	1777414604712837120

Effect of drying method on the antioxidant capacity of Cosmos Caudatus extract

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