As an alternative use of chocolate’s rind, there have been several experimentals from several researchers, among others : the manufacture of oxalic acid chocolates rind (Rachmat, Alif, Yeni. 2005), which explains that the best yield of
oxalic acid occurs at heating temperature 210 oC, research of pectin extraction from chocolates rind (Mariana,
Tri. 2005), which explains that pectin derived from chocolate fruit have high levels of metoxil.