Portulaca oleracea fractions obtained from the crude extract of the plant by reversed-phase separation were investigated for their antioxidant activities and phenolic compounds content. Five fractions were classified based on optical absorption between the wavelength range of 200-400 nm. Fraction 3 displayed higher absorption than the other fractions. The total amount of quantified phenolics in this fraction was found to be quite high compared to that of crude extract. Chlorogenic, caffeic, p-coumaric, ferulic and rosmarinic acids were the free phenolic acids, and quercetin and kaempferol were the free flavonoids detected in Fraction 3. IC50 value of crude extract was found to be 511.8 mu g/ml whereas Fraction 3 exhibited an IC50 value of 154.1 mu g/ml. TEAC of Fraction 3 was found to be almost four times higher than that of the crude extract. Fraction 3 was also found to show the highest lipid peroxidation inhibiting capacity, determined by TBARS assay. (C) 2012 Elsevier Ltd. All rights reserved.
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Univ Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, Malaysia
Alam, Md. Amirul
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Juraimi, Abdul Shukor
Rafii, M. Y.
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Univ Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, Malaysia
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Hamid, Azizah Abdul
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Univ Putra Malaysia, Fac Food Sci & Technol, Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, Malaysia
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Aslani, Farzad
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Univ Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, Malaysia
Aslani, Farzad
Hasan, M. M.
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Univ Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, Malaysia
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Zainudin, Mohd Asraf Mohd
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Univ Putra Malaysia, Fac Food Sci & Technol, Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, Malaysia
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Uddin, Md. Kamal
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Univ Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Agr, Dept Crop Sci, Serdang 43400, Selangor, Malaysia
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Liaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R ChinaLiaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R China
Xiu, Fen
Li, Xuetao
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Liaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R ChinaLiaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R China
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Zhang, Wenjie
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Liaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R ChinaLiaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R China
Zhang, Wenjie
He, Fan
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Liaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R ChinaLiaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R China
He, Fan
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Liaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R ChinaLiaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R China
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Stien, Didier
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UPMC Univ Paris 06, Sorbonne Univ, CNRS, LBBM,Observ Oceanol, Banyuls Sur Mer, FranceLiaoning Univ Tradit Chinese Med, Sch Pharm, Dalian, Peoples R China
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Jordan Univ Sci & Technol, Fac Agr, Dept Nutr & Food Technol, POB 3030, Irbid 22110, JordanJordan Univ Sci & Technol, Fac Agr, Dept Nutr & Food Technol, POB 3030, Irbid 22110, Jordan
Au'datt, Muhammad H.
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Rababah, Taha
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Alhamad, Mohammad N.
Al-Tawaha, Abdelrazzaq
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Jordan Univ Sci & Technol, Fac Agr, Dept Plant Prod, POB 3030, Irbid 22110, JordanJordan Univ Sci & Technol, Fac Agr, Dept Nutr & Food Technol, POB 3030, Irbid 22110, Jordan
Al-Tawaha, Abdelrazzaq
Al-Tawaha, Abdel Rahman
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Al Hussein Bin Talal Univ, Dept Biol Sci, POB 20, Maan, JordanJordan Univ Sci & Technol, Fac Agr, Dept Nutr & Food Technol, POB 3030, Irbid 22110, Jordan
Al-Tawaha, Abdel Rahman
Gammoh, Sana
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Jordan Univ Sci & Technol, Fac Agr, Dept Nutr & Food Technol, POB 3030, Irbid 22110, JordanJordan Univ Sci & Technol, Fac Agr, Dept Nutr & Food Technol, POB 3030, Irbid 22110, Jordan
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Jordan Univ Sci & Technol, Fac Agr, Dept Nutr & Food Technol, POB 3030, Irbid 22110, JordanJordan Univ Sci & Technol, Fac Agr, Dept Nutr & Food Technol, POB 3030, Irbid 22110, Jordan
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Al-Karaki, Ghazi
Hamasha, Hassan R.
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Jerash Univ, Biol Dept, Jarash 26150, Jordan
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Tranchant, Carole C.
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