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Effects of drying techniques on composition of biomarker compounds (Sinensetin and rosmarinic acid) and antioxidant capacity of Misai Kucing leaves

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Main Author: ‘Adilah, Che Sulaiman
Other Authors: Prof. Dr. Abd. Razak Shaari (Advisor)
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis 2011
Subjects:
Orthosiphon staminues
Misai kucing
Herbal plant
Antioxidant
Drying techniques
Rosmarinic acid
Sinensetin
Medicinal plant
Herbs
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13351
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spelling my.unimap-133512011-07-30T07:32:56Z Effects of drying techniques on composition of biomarker compounds (Sinensetin and rosmarinic acid) and antioxidant capacity of Misai Kucing leaves ‘Adilah, Che Sulaiman Prof. Dr. Abd. Razak Shaari (Advisor) Orthosiphon staminues Misai kucing Herbal plant Antioxidant Drying techniques Rosmarinic acid Sinensetin Medicinal plant Herbs Access is limited to UniMAP community. Orthosiphon staminues or misai kucing is one of the recommended herbal species in Malaysia. This study was conducted to determine the effect of drying techniques on antioxidant capacity and composition of biomarkers compounds of misai kucing leaves. Misai kucing leaves samples were subjected into three different drying techniques, namely sun drying, ambient temperature drying and oven drying at 50 oC until the samples weight become constant. Then, the samples were extracted with methanol in shaking water bath. The total phenolic compounds were evaluated by using Folin-Ciocalteu method and the antioxidant activity was evaluated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity assay and were analyzed by using UV/VIS Spectrophotometer. The biomarker compounds were determined by using High Performance Liquid Chromatography (HPLC). The results of the experiments showed differences in values on concentration of total phenolic compounds, free radical scavenging activity and concentration of rosmarinic and sinensetin acid when treatment of different drying techniques were applied. In conclusion, for different drying techniques, ambient drying techniques obtained the highest concentration of total phenolic compound, free radical scavenging activity, concentration of rosmarinic acid and sinensetin. For total weight loss, ambient temperature drying obtained the highest amount of free radical scavenging activity, sun drying obtained the highest concentration of sinensetin and oven drying obtained highest concentration of total phenolic compound. 2011-07-30T07:32:55Z 2011-07-30T07:32:55Z 2011-05 Learning Object http://hdl.handle.net/123456789/13351 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 Orthosiphon staminues
Misai kucing
Herbal plant
Antioxidant
Drying techniques
Rosmarinic acid
Sinensetin
Medicinal plant
Herbs
spellingShingle Orthosiphon staminues
Misai kucing
Herbal plant
Antioxidant
Drying techniques
Rosmarinic acid
Sinensetin
Medicinal plant
Herbs
‘Adilah, Che Sulaiman
Effects of drying techniques on composition of biomarker compounds (Sinensetin and rosmarinic acid) and antioxidant capacity of Misai Kucing leaves
description Access is limited to UniMAP community.
author2 Prof. Dr. Abd. Razak Shaari (Advisor)
author_facet Prof. Dr. Abd. Razak Shaari (Advisor)
‘Adilah, Che Sulaiman
format Learning Object
author ‘Adilah, Che Sulaiman
author_sort ‘Adilah, Che Sulaiman
title Effects of drying techniques on composition of biomarker compounds (Sinensetin and rosmarinic acid) and antioxidant capacity of Misai Kucing leaves
title_short Effects of drying techniques on composition of biomarker compounds (Sinensetin and rosmarinic acid) and antioxidant capacity of Misai Kucing leaves
title_full Effects of drying techniques on composition of biomarker compounds (Sinensetin and rosmarinic acid) and antioxidant capacity of Misai Kucing leaves
title_fullStr Effects of drying techniques on composition of biomarker compounds (Sinensetin and rosmarinic acid) and antioxidant capacity of Misai Kucing leaves
title_full_unstemmed Effects of drying techniques on composition of biomarker compounds (Sinensetin and rosmarinic acid) and antioxidant capacity of Misai Kucing leaves
title_sort effects of drying techniques on composition of biomarker compounds (sinensetin and rosmarinic acid) and antioxidant capacity of misai kucing leaves
publisher Universiti Malaysia Perlis
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13351
_version_ 1643790815418384384
score 13.214268

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