Figure 2. Visible changes in the refined used vegetable oils obtained from (a) restaurant 1 (R1) and (b) restaurant 2 (R2). ( Raw= unrefined used oil, DEG = degummed oil, ALK. = alkaline treated oil, BLC. = bleached oil)

From

Refining, Toxicology Study and Biodiesel Potentials of Used Vegetable Oils

Olaoluwa Ruth Obisesan, Abolanle Saheed Adekunle, John Adekunle Oyedele Oyekunle, Efere Martins Obuotor, Olatunji Seyi Ojo, Adedayo Muideen Sanni, Muib Adewale Akinyemi, Oyedare Mayowa Adesina

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