M. Wijaya, M. Wiharto
Cocoa contain polyphenols and potential antioxidants. Polyphenols is beneficial to human health and used for cosmetic and food manufacturing. The production of cocoa and its derivative products resulted liquid smoke, tar and charcoal. Pyrolysis is able to overcome the accumulation of those production waste. In this study, pyrolysis was conducted at temperature 114-514°C. Analysis of cocoa shell content from Bulukumba district was lignin (42.28%), cellulose (44.55%), hemicellulose (10.02%). Analysis of cocoa shell content from Enrekang district was lignin (45.61%), cellulose (37.61%), hemicellulose (6.40%), and others (10.38%). GC-MS analysis for liquid smoke of cocoa shell from Bulukumba resulted acetic acid (18.39%), butyrolacton (6.27%), oxetane, 2-propyl (4.45%), 2,6-dimethyl-7-octen-3-ol (6.48%), and hexadecanoic acid (4.36%). GC-MS analysis for liquid smoke for cocoa shell Enrekang resulted acetic acid (25.78%), propane diamide (2.18%), acetamide N-methyl (4.0%), cyclopropyl carbinol (12.57%), 2-propanoic acid-2-methyl (7.83%), phenol 2,6-dimethoxy (2.72%), 1,6-anhydro-beta (5.83%), alpha-beta-D ribopyranose (1.76%). While XRD analysis for cocoa shell from Bulukumba and Enrekang showed that the degree crystallinity are 40.15% and 22.22%, respectively. The use of pyrolysis of cocoa shell can reduce carbon emission as environmental pollution and increase the economic value. © Published under licence by IOP Publishing Ltd.
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Makassar, Indonesia; Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Makassar, Indonesia
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