Full Length Research Paper
Abstract
This study illustrates the process of enhancing phenolics synthesis in Spirulinamaxima grown in Zarrouk’s medium supplemented with sodium nitrate (NaNO3) and/or phenylalanine (L-PA); attaining highest production were obtained in medium containing 3.77 gL-1 NaNO3 and 100 mgL-1 L-PA. HPLC profile showed the pre-sence of phenolic acids and flavonoids predominantly with gallate, chlorogenate, cinnamate, pinostrobate and p-OH-benzoates. The protective action of Spirulinaphenolic compounds (SPC) against CCl4-induced in vitro, hepato-toxicity symptoms like microsomal lipid peroxidation and hydroxyl radical formation were studied. SPC exhibited antioxidant effects on DPPH radical scavenging with IC50values ranging from 23.22 to 35.62 µg.mL-1 and inhibited CCl4-induced lipid peroxidation in hepato-microsoms model, in dose-depended manner. Their protective potential was comparable to that of standard phenolic antioxidants such as BHT, BHA and α–tocopherol (IC50 values ranged from 13.22 to 23.62 µg.mL-1).
Key words: Spirulina maxima, antioxidant activity, carbon tetrachloride, hepato-protective effects.
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