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Phenolics in Citrus hystrix leaves obtained using supercritical carbon dioxide extraction

The extraction of phenolics from Citrus hystrix leaf was carried out using supercritical fluid extraction and was optimized using response surface methodology (RSM). The effects of CO2 flow rate, extraction pressure and extraction temperature on yield, total phenolic content and diphenyl-picrylhydra...

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محفوظ في:
التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Bakar, Jamilah, M., Abdulkadir Gadi, Mohamed, Suhaila, Sarker, Md. Zaidul Islam
التنسيق: مقال
اللغة:English
English
منشور في: Faculty of Food Science and Technology, Universiti Putra Malaysia 2011
الوصول للمادة أونلاين:http://psasir.upm.edu.my/id/eprint/24145/1/24145.pdf
http://psasir.upm.edu.my/id/eprint/24145/
http://www.ifrj.upm.edu.my/volume-18-2011.html
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spelling my.upm.eprints.241452015-06-01T08:10:05Z http://psasir.upm.edu.my/id/eprint/24145/ Phenolics in Citrus hystrix leaves obtained using supercritical carbon dioxide extraction Bakar, Jamilah M., Abdulkadir Gadi Mohamed, Suhaila Sarker, Md. Zaidul Islam The extraction of phenolics from Citrus hystrix leaf was carried out using supercritical fluid extraction and was optimized using response surface methodology (RSM). The effects of CO2 flow rate, extraction pressure and extraction temperature on yield, total phenolic content and diphenyl-picrylhydrazyl-IC50 were evaluated and compared with ethanol extraction. The extraction pressure was the most significant factor affecting the yield, TPC and DPPH-IC50 of the extracts, followed by CO2 flow rate and the extraction temperature. The optimum conditions of pressure, CO2 flow rate and temperature were at 267 bars, 18 g/min and 50oC, respectively. The yield, TPC and DPPH-IC50 obtained were 5.06%, 116.53 mg GAE/g extract and IC50 of 0.063 mg/ml, respectively. These values were not significantly different (p<0.05) to their predicted values. Better inhibition and TPC were obtained using SFE method whereas higher yield and phenolic acids were obtained in the ethanol extracts. Faculty of Food Science and Technology, Universiti Putra Malaysia 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/24145/1/24145.pdf Bakar, Jamilah and M., Abdulkadir Gadi and Mohamed, Suhaila and Sarker, Md. Zaidul Islam (2011) Phenolics in Citrus hystrix leaves obtained using supercritical carbon dioxide extraction. International Food Research Journal, 18 (3). pp. 941-948. ISSN 1985-4668; ESSN: 2231-7546 http://www.ifrj.upm.edu.my/volume-18-2011.html English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description The extraction of phenolics from Citrus hystrix leaf was carried out using supercritical fluid extraction and was optimized using response surface methodology (RSM). The effects of CO2 flow rate, extraction pressure and extraction temperature on yield, total phenolic content and diphenyl-picrylhydrazyl-IC50 were evaluated and compared with ethanol extraction. The extraction pressure was the most significant factor affecting the yield, TPC and DPPH-IC50 of the extracts, followed by CO2 flow rate and the extraction temperature. The optimum conditions of pressure, CO2 flow rate and temperature were at 267 bars, 18 g/min and 50oC, respectively. The yield, TPC and DPPH-IC50 obtained were 5.06%, 116.53 mg GAE/g extract and IC50 of 0.063 mg/ml, respectively. These values were not significantly different (p<0.05) to their predicted values. Better inhibition and TPC were obtained using SFE method whereas higher yield and phenolic acids were obtained in the ethanol extracts.
format Article
author Bakar, Jamilah
M., Abdulkadir Gadi
Mohamed, Suhaila
Sarker, Md. Zaidul Islam
spellingShingle Bakar, Jamilah
M., Abdulkadir Gadi
Mohamed, Suhaila
Sarker, Md. Zaidul Islam
Phenolics in Citrus hystrix leaves obtained using supercritical carbon dioxide extraction
author_facet Bakar, Jamilah
M., Abdulkadir Gadi
Mohamed, Suhaila
Sarker, Md. Zaidul Islam
author_sort Bakar, Jamilah
title Phenolics in Citrus hystrix leaves obtained using supercritical carbon dioxide extraction
title_short Phenolics in Citrus hystrix leaves obtained using supercritical carbon dioxide extraction
title_full Phenolics in Citrus hystrix leaves obtained using supercritical carbon dioxide extraction
title_fullStr Phenolics in Citrus hystrix leaves obtained using supercritical carbon dioxide extraction
title_full_unstemmed Phenolics in Citrus hystrix leaves obtained using supercritical carbon dioxide extraction
title_sort phenolics in citrus hystrix leaves obtained using supercritical carbon dioxide extraction
publisher Faculty of Food Science and Technology, Universiti Putra Malaysia
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/24145/1/24145.pdf
http://psasir.upm.edu.my/id/eprint/24145/
http://www.ifrj.upm.edu.my/volume-18-2011.html
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score 13.251813

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