December 4, 2025CatalystsOpen Access

Enzymatic Regeneration of Spent Bleaching Earth for Sustainable Reuse in Edible Oil Processing

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Phosphorus was effectively removed from spent bleaching earth using a commercial lipase at optimal conditions.
The enzymatic process achieved 97% phosphorus removal while reducing residual oil by half, indicating significant efficiency.
Experimental design evaluated the effects of temperature, enzyme amount, and reaction time on phosphorus removal efficacy.
Regenerated spent bleaching earth may be reused in oil processing and serve as a biofertilizer, enhancing sustainability.

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This analysis demonstrates phosphorus removal in spent bleaching earth using enzymatic hydrolysis, suggesting potential as a biofertilizer.

Pedro Orozco Cury (2025) studied this question.

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This analysis demonstrates phosphorus removal in spent bleaching earth using enzymatic hydrolysis, suggesting potential as a biofertilizer.