Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi)

Averrhoa bilimbi Linn. are type of family Oxalidaceae that had a common name such as bilimbi, belimbing buloh and balimbing. They have an excellent source of bioactive compounds such as flavonoid, phenolic and antioxidant included oxalic acid, vitamin C, tannins also minerals. A. bilimbi, has been w...

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Main Author:	Norellysah, Hasim
Format:	Undergraduates Project Papers
Language:	English
Published:	2014
Subjects:	TD Environmental technology. Sanitary engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/9138/ http://umpir.ump.edu.my/id/eprint/9138/ http://umpir.ump.edu.my/id/eprint/9138/1/cd8673.pdf

id	ump-9138
recordtype	eprints
spelling	ump-91382015-10-21T00:07:19Z http://umpir.ump.edu.my/id/eprint/9138/ Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi) Norellysah, Hasim TD Environmental technology. Sanitary engineering Averrhoa bilimbi Linn. are type of family Oxalidaceae that had a common name such as bilimbi, belimbing buloh and balimbing. They have an excellent source of bioactive compounds such as flavonoid, phenolic and antioxidant included oxalic acid, vitamin C, tannins also minerals. A. bilimbi, has been widely used in traditional medicine since gives high good impact to humankind for cured disease such as cough, cold, itches, boils, rheumatism, syphilis, diabetes, whooping cough and hypertension. However, this active compound will reduce its value during undergo heating and drying process especially when exposed to high temperature. Since bioactive compounds are unstable when it exposed to heat, the product will become low in the nutritional value. Therefore, it very important to understand the thermal degradation of A.bilimbi to maintain the product quality and produce nutritional product that can used for human health, and hence this is the objective of this work. Extraction of A. bilimbi fruit were performed using 50% concentration methanol as a solvent. Then, the heat treatment was performed using a metal tube containing A. bilimbi extracts at various temperature and time exposure. Total flavonoids (TFC) and phenolic (TPC) content were analyses using colorimetric assay. Meanwhile, the free-radical scavenging (antioxidant) activity was measured using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. All analysis was performed using a calibrated ultraviolet-visible spectroscopy (Hitachi U-1800, Japan). TPC and DPPH were found to decrease relatively as the heating time prolonged and temperature increased were, from 885 to 877 mg GA/100 g Averrhoa bilimbi and from 42 to 40 % after 120 minutes heat treatment respectively. However, TFC increased significantly with temperature and heating time were from 852 to 2133 μg/100 g A.bilimbi. From this study, it showed that a long period of heat treatment of A. bilimbi at a relatively high temperature destroy the overall antioxidant activity. Therefore, the overall antioxidant activity of A. bilimbi should be enhance to minimize the degradation of natural antioxidant during thermal processing. 2014-07 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9138/1/cd8673.pdf Norellysah, Hasim (2014) Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi). Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:84824&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TD Environmental technology. Sanitary engineering
spellingShingle	TD Environmental technology. Sanitary engineering Norellysah, Hasim Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi)
description	Averrhoa bilimbi Linn. are type of family Oxalidaceae that had a common name such as bilimbi, belimbing buloh and balimbing. They have an excellent source of bioactive compounds such as flavonoid, phenolic and antioxidant included oxalic acid, vitamin C, tannins also minerals. A. bilimbi, has been widely used in traditional medicine since gives high good impact to humankind for cured disease such as cough, cold, itches, boils, rheumatism, syphilis, diabetes, whooping cough and hypertension. However, this active compound will reduce its value during undergo heating and drying process especially when exposed to high temperature. Since bioactive compounds are unstable when it exposed to heat, the product will become low in the nutritional value. Therefore, it very important to understand the thermal degradation of A.bilimbi to maintain the product quality and produce nutritional product that can used for human health, and hence this is the objective of this work. Extraction of A. bilimbi fruit were performed using 50% concentration methanol as a solvent. Then, the heat treatment was performed using a metal tube containing A. bilimbi extracts at various temperature and time exposure. Total flavonoids (TFC) and phenolic (TPC) content were analyses using colorimetric assay. Meanwhile, the free-radical scavenging (antioxidant) activity was measured using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. All analysis was performed using a calibrated ultraviolet-visible spectroscopy (Hitachi U-1800, Japan). TPC and DPPH were found to decrease relatively as the heating time prolonged and temperature increased were, from 885 to 877 mg GA/100 g Averrhoa bilimbi and from 42 to 40 % after 120 minutes heat treatment respectively. However, TFC increased significantly with temperature and heating time were from 852 to 2133 μg/100 g A.bilimbi. From this study, it showed that a long period of heat treatment of A. bilimbi at a relatively high temperature destroy the overall antioxidant activity. Therefore, the overall antioxidant activity of A. bilimbi should be enhance to minimize the degradation of natural antioxidant during thermal processing.
format	Undergraduates Project Papers
author	Norellysah, Hasim
author_facet	Norellysah, Hasim
author_sort	Norellysah, Hasim
title	Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi)
title_short	Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi)
title_full	Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi)
title_fullStr	Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi)
title_full_unstemmed	Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi)
title_sort	study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi)
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/9138/ http://umpir.ump.edu.my/id/eprint/9138/ http://umpir.ump.edu.my/id/eprint/9138/1/cd8673.pdf
first_indexed	2023-09-18T22:07:23Z
last_indexed	2023-09-18T22:07:23Z
_version_	1777414799405088768

Study on bioactive compound degradation from belimbing buluh (averrhoa bilimbi)

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