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Original Research
Published 3 July 2026
Utilization of Madhuca indica ash as a green catalyst for transesterification of Madhuca indica oil: process optimization and engine analysis
S. Aparna · S. Rahul · D. Dhanuprabha · S. Raaghavi · A. Arumugam
Frontiers in Fuels
doi 10.3389/ffuel.2026.1840089