Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder

The objective of the present study was to determine the total phenolic content (TPC), total flavonoid content (TFC) and antioxidant properties, i.e. 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay and ferric reducing antioxidant potential (FRAP) assay, of red- and yellow-fleshed w...

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Main Authors:	Ho, Lee-Hoon, Nor Fadhilah Ramli, Tan, Thuan-Chew, Norlia Muhamad, Mohd Nizam Haron
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2018
Online Access:	http://journalarticle.ukm.my/11985/ http://journalarticle.ukm.my/11985/ http://journalarticle.ukm.my/11985/1/12%20Lee-Hoon%20Ho.pdf

id	ukm-11985
recordtype	eprints
spelling	ukm-119852018-08-17T09:18:32Z http://journalarticle.ukm.my/11985/ Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder Ho, Lee-Hoon Nor Fadhilah Ramli, Tan, Thuan-Chew Norlia Muhamad, Mohd Nizam Haron, The objective of the present study was to determine the total phenolic content (TPC), total flavonoid content (TFC) and antioxidant properties, i.e. 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay and ferric reducing antioxidant potential (FRAP) assay, of red- and yellow-fleshed watermelon rind powders prepared using different drying conditions (hot-air oven drying at 40 and 60°C and freeze drying). All the samples were subjected to four different solvent extract using water, methanol, ethanol and acetone prior analyses. Water extract from red- and yellow-fleshed watermelon rind powders presented highest value for TPC and TFC. However, methanol extract samples showed highest value for antioxidant properties (DPPH and FRAP) followed by acetone, ethanol and water extract. By comparing the drying conditions, all samples dried using hot-air dryer at 40 and 60°C had significantly higher (p<0.05) in TPC value than the samples dried using freeze dryer. However, samples dried using freeze dryer showed highest in DPPH and FRAP values. The present obtained results would be useful to the food and pharmaceutical industries for developing of functional ingredients. Penerbit Universiti Kebangsaan Malaysia 2018-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/11985/1/12%20Lee-Hoon%20Ho.pdf Ho, Lee-Hoon and Nor Fadhilah Ramli, and Tan, Thuan-Chew and Norlia Muhamad, and Mohd Nizam Haron, (2018) Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder. Sains Malaysiana, 47 (1). pp. 99-107. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol47num1_2018/contentsVol47num1_2018.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The objective of the present study was to determine the total phenolic content (TPC), total flavonoid content (TFC) and antioxidant properties, i.e. 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay and ferric reducing antioxidant potential (FRAP) assay, of red- and yellow-fleshed watermelon rind powders prepared using different drying conditions (hot-air oven drying at 40 and 60°C and freeze drying). All the samples were subjected to four different solvent extract using water, methanol, ethanol and acetone prior analyses. Water extract from red- and yellow-fleshed watermelon rind powders presented highest value for TPC and TFC. However, methanol extract samples showed highest value for antioxidant properties (DPPH and FRAP) followed by acetone, ethanol and water extract. By comparing the drying conditions, all samples dried using hot-air dryer at 40 and 60°C had significantly higher (p<0.05) in TPC value than the samples dried using freeze dryer. However, samples dried using freeze dryer showed highest in DPPH and FRAP values. The present obtained results would be useful to the food and pharmaceutical industries for developing of functional ingredients.
format	Article
author	Ho, Lee-Hoon Nor Fadhilah Ramli, Tan, Thuan-Chew Norlia Muhamad, Mohd Nizam Haron,
spellingShingle	Ho, Lee-Hoon Nor Fadhilah Ramli, Tan, Thuan-Chew Norlia Muhamad, Mohd Nizam Haron, Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder
author_facet	Ho, Lee-Hoon Nor Fadhilah Ramli, Tan, Thuan-Chew Norlia Muhamad, Mohd Nizam Haron,
author_sort	Ho, Lee-Hoon
title	Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder
title_short	Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder
title_full	Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder
title_fullStr	Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder
title_full_unstemmed	Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder
title_sort	effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2018
url	http://journalarticle.ukm.my/11985/ http://journalarticle.ukm.my/11985/ http://journalarticle.ukm.my/11985/1/12%20Lee-Hoon%20Ho.pdf
first_indexed	2023-09-18T20:01:35Z
last_indexed	2023-09-18T20:01:35Z
_version_	1777406884980981760

Effect of extraction solvents and drying conditions on total phenolic content and antioxidant properties of watermelon rind powder

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