OPTIMIZATION OF BENTONITE LIQUID DETERGENT FOR CLEANSING OF EXTREME NAJS USING SIMPLEX LATTICE DESIGN
Keywords:Bentonite, Liquid detergent, Najs mughalladzah, Simplex lattice design, Islamic cleansing
Objective: The objective of this research was to formulate bentonite (clay) liquid detergent (BLD) using bentonite combined with vegetable oils intended for cleansing of extreme najs.
Methods: In this study, five formulas of BLD in combination with vegetable oils (coconut and palm oils) were made. The quality of BLD was evaluated in terms of organoleptic, foam power, foam stability, viscocity, pH, free alkali, and total fatty acids. These parameters were analyzed using simplex lattice design (SLD) in order to get the optimum formula of BLD. The verification of optimum formula was carried out using statistical analysis of one sample t-test at a significance level (P) of 0.05.
Results: The results showed that the optimum concentration of bentonite was 6.4% with the percentage of cocount oil and palm oil of 95.1% and 4.9%, respectively. Based on one sample t-test, there was no significant difference (P>0.05) of foam power, foam stability, and pH between optimum formula BLD predicted using SLD and that actually formulated.
Conclusion: BLD formulated can be used as innovatine means for cleansing extreme najs.
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