Keywords: خاکستر مرطوب; AIA; acid insoluble ash; ANOVA; Analysis of variance; AOCS; American Oil Chemists' Society; CHO; carbohydrate; DM; dry matter; HF; hydrofluoric acid; h; hour; ICP-OES; inductively coupled plasma-optical emission spectrometer; PBR; photobioreactor; PTFE; p