抗氧化剂
化学
棕榈仁
脂氧合酶
核化学
热解
酶
IC50型
食品科学
色谱法
生物化学
有机化学
体外
棕榈油
作者
Zainab Rabiu,Mohd Amir Asyraf Mohd Hamzah,Rosnani Hasham,Zainul Akmar Zakaria
标识
DOI:10.1007/s11356-020-09209-x
摘要
Pyroligneous acid (PA) obtained from slow pyrolysis of palm kernel shell (PKS) has high total phenolic contents and exhibits various biological activities including antioxidant, antibacterial and antifungal. In this study, PA obtained using slow pyrolysis method and fractionated using column chromatography was characterized (chemical and antioxidative properties) and investigated for its cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LOX) inhibition activities using the in vitro and in silico approaches. The F9 PA fraction exhibited highest total phenolic content of 181.75 ± 17.0 μg/mL. Fraction F21–25 showed ferric reducing antioxidant power (FRAP) (331.80 ± 4.60 mg TE/g) and IC50 of 18.56 ± 0.01 μg/mL towards COX-2 and 5.25 ± 0.03 μg/mL towards the 5-LOX enzymes, respectively. Molecular docking analysis suggested favourable binding energy for all chemical compounds present in fraction F21–25, notably 1-(2,4,6-trihydroxyphenyl)-2-pentanone, towards both COX-2 (− 6.9 kcal/mol) and 5-LOX (− 6.4 kcal/mol) enzymes. As a conclusion, PA from PKS has the potential to be used as an alternative antioxidant and antiinflammatory agents which is biodegradable and a more sustainable supply of raw materials.
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