title: Effect of storage of shelled Moringa oleifera seeds from reaping time on turbidity removal.
abstract: Moringa oleifera is an indigenous plant to Malaysia whose seeds are used for water purification. Many studies on Moringa oleifera have shown that it is highly effective as a natural coagulant for turbidity removal. In this study, two different methods for extraction of Moringa's active ingredient were investigated. Results of sodium chloride (NaCl) and distilled water extraction of Moringa oleifera seeds showed that salt solution extraction was more efficient than distilled water in extracting Moringa's active coagulant ingredient. The optimum dosage of shelled Moringa oleifera seeds extracted by the NaCl solution was comparable with that of the conventional chemical coagulant alum. Moreover, the turbidity removal efficiency was investigated for shelled Moringa oleifera seeds before drying in the oven under different storage conditions (i.e. open and closed containers at room temperature, 27 °C) and durations (fresh, and storage for 2, 4, 6 and 8 weeks from the time the seeds were picked from the trees). Our results indicate that there are no significant differences in coagulation efficiencies and, accordingly, turbidity removals between the examined storage conditions and periods.
authors: Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, 47200 Serdang, Selangor, Malaysia.
authors: M
authors: M
authors: Golestanbagh
authors: I S
authors: IS
authors: Ahamad
authors: A
authors: A
authors: Idris
authors: R
authors: R
authors: Yunus
mesh_terms: D008296:Malaysia; D029588:Moringa oleifera / Q000737:chemistry*; D009391:Nephelometry and Turbidimetry; D010936:Plant Extracts / Q000737:chemistry*; D018514:Plant Structures / Q000737:chemistry; D012639:Seeds / Q000737:chemistry*; D012965:Sodium Chloride; D018508:Water Purification / Q000379:methods*
chemical_list: D010936:Plant Extracts; D012965:Sodium Chloride