Ref2

https://www.researchgate.net/profile/Patrick_Adebola/publication/237313451_Effect_of_cooking_on_the_mineral_and_antinutrient_contents_of_the_leaves_of_seven_accessions_of_Colocasia_esculenta_L_Schott_growing_in_South_Africa/links/0deec533c52abe3200000000.pdf