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Analisis Asam Lemak Omega 3 dan 6 pada Minyak Ikan Lele secara GC-FID Pandiangan, Maruba; Kaban, Jamaran; Wirjosentono, Basuki; Silalahi, Jansen
Jurnal Riset Teknologi Pangan dan Hasil Pertanian (RETIPA) Volume 1 Nomor 1
Publisher : Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (467.228 KB) | DOI: 10.54367/retipa.v1i1.908

Abstract

Omega 3 and 6 fatty acids are very good consumed to improve human health. For this reason, research is needed to determine the glyceride profile and identification of omega 3 and 6 fatty acids in fat molecules so that the potential of catfish oil as a source of omega 3 and 6 can be known. Catfish oil was extracted by the soxletation method. Fatty acid composition was analyzed by gas chromatography (GC-FID) which was previously esterified using BF3. The results showed that the composition of unsaturated fatty acids more than saturated fatty acids. Omega-3 fatty acids are found consisting of linolenic acid, eicosapentanoic acid (EPA) and docosahexanoic acid (DHA) and omega 6, namely linoleic acid. The comparison of omega 3 and omega 6 in catfish oil is still within the recommended comparison terms. Judging from the composition and position of catfish oil fatty acids which contain omega 3 and omega 6 fatty acids. Thus catfish oil has the potential as a source of omega 3 and 6 from one of the freshwater fish that are consumed by many people.
Synthesis of Sulfated Chitosan Through Sulfation Reaction of Chitosan with Chlorosulfonic Acid in N, N-Dimethylformamide, and Antibacterial Activity Test Manik, Epria R; Kaban, Jamaran
Journal of Chemical Natural Resources Vol. 4 No. 1 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.806 KB) | DOI: 10.32734/jcnar.v4i1.9353

Abstract

Sulfated chitosan has been successfully synthesized through sulfation reaction between chitosan and chlorosulfonic acid using catalyst and N, N-Dimethylformamide (DMF) solvent. The first step was sulfation of chitosan with 4; 4.5; 5 mL of HClSO3. The formation of sulfated chitosan was supported by an increased solubility in water and the appearance of peaks at 1111 cm-1, which indicated the C-O-S group. Sulfated chitosan that has been produced, has a degree of sulfation of 5.6041%; 6.0045%; 6.8051%. Sulfated chitosan shows moderate antibacterial activity and a wide spectrum of antibacterial properties against Escherichia coli and Staphylococcus aureus bacterias. The increase in the degree of sulfation was proportional to the increase in antimicrobial activity of both bacteria. The highest antibacterial activity based on inhibitory zone diameter was 10 mm for sulfated chitosan that has been produced from 1 g of chitosan with 5 mL of HClSO3 with a degree of sulfation was 6.8051%.
Synthesis of Schiff's Base Between Dialdehid Alginate and Chitosan and Testing of Antibacterial Properties Kaban, Jamaran; Pasaribu, Seprinto
Journal of Chemical Natural Resources Vol. 5 No. 1 (2023): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v5i1.11992

Abstract

Schiff base synthesis has been carried out through a condensation reaction between dialdehyde alginate and chitosan. The first step is to oxidize Na-alginate using a sodium periodate (NaIO4) oxidizer, which produces alginate dialdehyde. The next step is FT-IR analysis, degree of oxidation, swelling ratio, and antibacterial properties. The FT-IR analysis results of alginate dialdehyde, which has been absorption peak at 1627.92 cm-1, show stretching group C=O and wave number 1026.13 cm-,1 stretching group COC (cyclic ether). The Schiff base has been absorption peak at 1635.64 cm-1, a stretching vibration group C=N. The degree of oxidation is 33%, and the swelling ratio is 50%. The testing of antibacterial which is conducted has been antimicrobials zone of Escherichia coli bacteria to Schiff base 0 mm and chitosan 0.225 mm; meanwhile, for Staphylococcus aureus bacteria antimicrobials zone which is Schiff base 1.916 mm and chitosan 0.333 mm. It can be concluded that Schiff base can inhibit the growth of Staphylococcus aureus bacteria than Escherichia coli bacteria were not inhibited.