Deskripsi
Maggots are larvae of the BSF fly type which have potential as raw material for chitosan because they contain chitin. The production of chitin into chitosan goes through the deacetylation stage using a strong base with a high concentration, causing the neutralization process to take a long time and require a lot of distilled water. For time and cost efficiency, acid is used in the neutralization process. The aim of the research was to determine the effect of the type and concentration of acid on the degree of chitosan deacetylation. Chitosan is made through deproteination, demineralization, depigmentation and deacetylation stages. The deacetylation stage is neutralized with two types of acid, namely acetic acid and hydrochloric acid with a concentration of 1.5%; 3% ; and 6%. The results was observed 3.175 to 6.558 %, 3.204 to 5.833 %, 2.714 to 4.617 %, 11.50 to 15.33% and 53.04 to 71.22% for water content, ash content, total nitrogen level, yield and deacetylation degree, respectively. The best treatment was combination of 6% hydrochloric acid with a water content of 3.17%, ash content of 3.20%, total nitrogen content of 2.71%, and degree of deacetylation of 71.22%. The procedure for making chitosan in previous research was without heating or soaking using room temperature and using neutralization using distilled water so it took ± 10 days for chitosan extraction. Meanwhile, the chitosan extraction process in this research takes 3-4 days so it is more time efficient and able to reduce production costs in making chitosan. Analysis of the financial aspects shows that the results of the investment feasibility criteria calculations carried out for the chitosan production plan are financially feasible to be realized in conditions in accordance with the assumptions used because all calculated values have met the project feasibility criteria.
