Antioxidant, anti microbial and wound healing properties of quercus infectoria gall extracts

Quercus infectoria is one of the greatest herbs and contains several bioactive compounds which are believed to possess wound healing property. However, the scientific data to support its wound healing action is very rare and to date, the extraction of local Q. infectoria using various solvents is no...

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Main Author: Ab. Rahman, Nur Syukriah
Format: Thesis
Published: 2014
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spelling my-utm-ep.483502017-08-08T01:42:42Z Antioxidant, anti microbial and wound healing properties of quercus infectoria gall extracts 2014 Ab. Rahman, Nur Syukriah TP Chemical technology Quercus infectoria is one of the greatest herbs and contains several bioactive compounds which are believed to possess wound healing property. However, the scientific data to support its wound healing action is very rare and to date, the extraction of local Q. infectoria using various solvents is not well-established. Hence, the objective of the present research is to evaluate the antioxidant, antimicrobial and wound healing properties of Q. infectoria extract using relevant in vitro assay for application in topical wound management. Q. infectoria were extracted by using four solvents, namely 100% water, 99.8% and 70% methanol, 70% ethanol, 99.8% acetone and 99.8% ethanol. The extracts were then subjected to high performance liquid chromatography (HPLC) to identify the presence of gallic acid and tannic acid, while the total phenolics content were measured using Folin-Ciocalteu method. The extracts were tested using appropriate in vitro models, which were antioxidant (DPPH assay), antimicrobial (disc diffusion assay), suitable dose study (MTT assay), and fibroblast migration to the wounded area (scratch assay). Antimicrobial activity was tested against common bacteria found in wounds, which were Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis and Staphylococcus aureus. In HPLC analysis, gallic acid and tannic acid were found in all extracts in the range concentration of 34.04 until 2975.11 mg/g which might be the responsible compounds for wound healing activity. Water extract showed the highest antioxidant activity of approximately 94.55% ± 0.59, while acetone extract showed the largest inhibition zone for disc diffusion assay (19.00 ± 0.14 mm). All extracts were found to stimulate the growth of the fibroblast at 1 µg/ml-0.001 µg/ml, induced the migration rate up to 77% ± 3.05, and statistically significant when compared with control (p<0.05). These findings supported the traditional claim of Q. infectoria for its potential in wound healing activity and it can be a good herbal to incorporate in the topical wound healing product 2014 Thesis http://eprints.utm.my/id/eprint/48350/ masters Universiti Teknologi Malaysia, Faculty of Bioscience and Medical Engineering Faculty of Bioscience and Medical Engineering
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
topic TP Chemical technology
spellingShingle TP Chemical technology
Ab. Rahman, Nur Syukriah
Antioxidant, anti microbial and wound healing properties of quercus infectoria gall extracts
description Quercus infectoria is one of the greatest herbs and contains several bioactive compounds which are believed to possess wound healing property. However, the scientific data to support its wound healing action is very rare and to date, the extraction of local Q. infectoria using various solvents is not well-established. Hence, the objective of the present research is to evaluate the antioxidant, antimicrobial and wound healing properties of Q. infectoria extract using relevant in vitro assay for application in topical wound management. Q. infectoria were extracted by using four solvents, namely 100% water, 99.8% and 70% methanol, 70% ethanol, 99.8% acetone and 99.8% ethanol. The extracts were then subjected to high performance liquid chromatography (HPLC) to identify the presence of gallic acid and tannic acid, while the total phenolics content were measured using Folin-Ciocalteu method. The extracts were tested using appropriate in vitro models, which were antioxidant (DPPH assay), antimicrobial (disc diffusion assay), suitable dose study (MTT assay), and fibroblast migration to the wounded area (scratch assay). Antimicrobial activity was tested against common bacteria found in wounds, which were Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis and Staphylococcus aureus. In HPLC analysis, gallic acid and tannic acid were found in all extracts in the range concentration of 34.04 until 2975.11 mg/g which might be the responsible compounds for wound healing activity. Water extract showed the highest antioxidant activity of approximately 94.55% ± 0.59, while acetone extract showed the largest inhibition zone for disc diffusion assay (19.00 ± 0.14 mm). All extracts were found to stimulate the growth of the fibroblast at 1 µg/ml-0.001 µg/ml, induced the migration rate up to 77% ± 3.05, and statistically significant when compared with control (p<0.05). These findings supported the traditional claim of Q. infectoria for its potential in wound healing activity and it can be a good herbal to incorporate in the topical wound healing product
format Thesis
qualification_level Master's degree
author Ab. Rahman, Nur Syukriah
author_facet Ab. Rahman, Nur Syukriah
author_sort Ab. Rahman, Nur Syukriah
title Antioxidant, anti microbial and wound healing properties of quercus infectoria gall extracts
title_short Antioxidant, anti microbial and wound healing properties of quercus infectoria gall extracts
title_full Antioxidant, anti microbial and wound healing properties of quercus infectoria gall extracts
title_fullStr Antioxidant, anti microbial and wound healing properties of quercus infectoria gall extracts
title_full_unstemmed Antioxidant, anti microbial and wound healing properties of quercus infectoria gall extracts
title_sort antioxidant, anti microbial and wound healing properties of quercus infectoria gall extracts
granting_institution Universiti Teknologi Malaysia, Faculty of Bioscience and Medical Engineering
granting_department Faculty of Bioscience and Medical Engineering
publishDate 2014
_version_ 1747817368774508544