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Aplikasi Shrinking Core Model (Scm) Pada Reaksi Deasetilasi Kitin Menjadi Kitosan

Chitosan is derived from chitin compound used in the biomedical field. Chitosan can be synthesized from ebi waste using chemical methods through the deproteinasi process, the demineralization process and the deacetylation process. The purpose this study is to determine the effect of temperature on the degree of deacetylation chitosan synthesis and to determine models that can describe the kinetics reaction via Shrinking Core Model (SCM) approach. The procedure of research was started by ebi waste size reduction. Ebi powder was reacting with NaOH 3.5% (deproteinasi), ratio 1:10 (w/v) for 2 hours stirring by 150 rpm. The product reacted with HCl 1 N (demineralization), ratio 1:15 (w/v) for 1 hour stirring by 150 rpm. Then product was reacting using NaOH 50% (deacetylation), ratio 1:20 (w/v) at a temperature of 100oC, 110oC and 120oC with stirring by 150 rpm for 2 hours. Samples were taken every 10 minutes rise as much as 10 mL, washed until pH neutral and dried. Deacetylation degree of chitosan analyzed using acid-base titration method. The results showed that the higher the reaction temperature, the higher the degree of deacetylation of the chitosan will be 71.68% to 80.28% at a temperature of 100-120oC. The best reaction kinetics model to describe the occur in the synthesis of chitosan is a model 2, that is a layer (chitosan) to control with the equation as:
Keywords: deacetylation, reaction kinetics, chitosan, waste ebi, shrinking
core model.

Ketersediaan
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Perpustakaan Universitas Riau 07 02. 117 (0082)
07 02. 117 (0082)
Tersedia
Informasi Detail
Judul Seri
-
No. Panggil
07 02. 117 (0082)
Penerbit
Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Kimia.,
Deskripsi Fisik
xv, 67 hlm.; ill.; 29 cm
Bahasa
Indonesia
ISBN/ISSN
-
Klasifikasi
07 02. 117 (0082)
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
-
Subjek
KIMIA
Info Detail Spesifik
-
Pernyataan Tanggungjawab
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Tidak tersedia versi lain

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