Claim Missing Document
Check
Articles

Found 4 Documents
Search
Journal : Jurnal FishtecH

Aktivitas Antibakteri Kitosan dari Tulang Rawan Cumi-Cumi (Loligo sp.) Terhadap Bakteri Staphylococcus aureus dan Escherichia coli Laode Muhamad Hazairin Nadia; La Ode Huli; Waode Nilda Arifiana Effendy; Frets Jonas Rieuwpassa; Imra Imra; Nurhikma Nurhikma; Eko Cahyono
Jurnal FishtecH Vol 10, No 2 (2021)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/fishtech.v10i2.14386

Abstract

Squid (Loligo sp.) is one of fisheries commodities export in Indonesia. Squid has cartilage that can be utilized in the food and non-food sectors. The inner skin of the squid cartilage contains chemical compounds are chitin and chitosan. The objectives of this research are to produce chitosan from squid cartilage and tested the antibacterial effectiveness of chitosan in bacteria Staphylococcus aureus and Escherichia coli. The research method was carried out in twophase; the manufacturing phase of chitosan from squid cartilage and the testing phase for the antibacterial activity of chitosan. The results of the first phase of this study indicate that the chitosan produced meets the quality standards of chitosan with water content 7.82% (bk), ash content 0.57% (bk), nitrogen content 3.18% (bk) and degree of deacetylation 87.43%. Further more the results obtained in the second phase showed that the higher of chitosan concentration, the greater of inhibition zone in the tested bacteria. The best antibacterial activity was found at 0.8% chitosan concentration, with an inhibition zone of 12.8 ± 0.06 mm in E. coli and 11.1 ± 0.12 mm in S. aureus. At a concentration of 0.8% showed a greater inhibitory value when compared to 70% alcohol.
Analisis Organoleptik dan B-Karoten Nugget Ikan Nila (Oreochromis sp.) dengan Penambahan Tepung Wortel (Daucus carota L) Waode Nilda Arifiana Effendy; Laode Muhamad Hazairin Nadia; Sri Rejeki; La Ode Huli
Jurnal FishtecH Vol 11, No 1 (2022)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/fishtech.v11i1.15812

Abstract

Generally, nuggets on the market are made from chicken meat but today the price of chicken meat is high so it needs alternative raw materials in making nuggets. One of the raw materials that can be used for making nuggets is tilapia meat. Tilapia has high protein and a soft texture. To increase the attractiveness and nutritional value of nuggets, so vegetables can be added. Carrot is one of the vegetables that can be used as an added ingredient in tilapia fish nuggets because it contains ?-carotene which is a source of ?-tocopherol, dietary fiber, ascorbic acid, tocopherol, and natural antioxidants. The purpose of this study was to determine the effect of adding carrot flour with different concentrations to the organoleptic values and levels of ?-carotene of selected tilapia fish nuggets. This study uses a quantitative research method with a Completely Randomized Design (CRD) model with 4 treatment levels and 3 replications. The treatment in this study refers to the concentration of carrot flour were K0 (0%), K1 (8%), K2 (10%), and K3 (12%). Parameters observed were organoleptic (color, flavor, taste, and texture) and ?-carotene. The results showed that the addition of carrot flour had a significant effect on the organoleptic value of tilapia nuggets (p<0.05). The best treatment in this study was the addition of 12% carrot flour concentration (K3) with panelists acceptance rate at color 7.83 (like), flavor 7,96 (like), taste 7,52 (like) and texture 7,60 (like). K3 treatment was the selected tilapia nugget with the value of ?-carotene 12.09 ppm (bk) and 24.03 ppm (bb).
Application of Chitosan as Chlorine Substitution in Tilapia Fillet (Oreochromis sp.) Laode Muhamad Hazairin Nadia; Frets Jonas Rieuwpassa; Agustina Agustina; Reni Tri Cahyani; Wulandari Wulandari
Jurnal FishtecH Vol 11, No 2 (2022)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/fishtech.v11i2.17178

Abstract

Chitosan has gained high interest in recent times to extend the shelf-life of fish product due to its nontoxicity, biodegradability, biocompatible and antibacterial activity. This research was aimed to determine the antibacterial effect of chitosan on the shelf-life of tilapia fillets at room temperature storage (25-27 oC). This study used a actorial randomized design (RAF) with two factors, namely antibacterial treatment consisting of 3 levels (positive control with distilled water immersion on tilapia fillets, immersion of tilapia fillets with 0.8% chitosan and negative control with 10 ppm chlorine immersion in tilapia fillet) and observation time consisted of 3 levels (0 hours, 6 hours and 12 hours observations). Antibacterial treatment consisted of  3 levels, namely. Each treatment was carried out in three replications. The data were analyzed using analysis of variance (ANOVA) and the duncan multiple range test (DMRT) at a 95% confidence level. The results of the research showed that chitosan was able to suppress bacterial growth and suppress the increase in TVB values at room temperature storage for 12 hours, indicated by the significant difference in the total number of bacteria and TVB values with chlorine and controls (p<0.05). These indicated that chitosan has a function as a natural antibacterial to replace chlorine in the shelf-life extension of tilapia fillets.
Karakteristik Kimia dan Profil Asam Lemak Ikan Nila Merah (Oreochromis sp.) dari Umur Panen Berbeda Laode Muhamad Hazairin Nadia; Wulandari Wulandari; Yunialdi Hapynes Teffu; Fatur Rahman Rustan; La Ode Abdul Fajar Hasidu
Jurnal FishtecH Vol 12, No 1 (2023)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/fishtech.v12i1.20056

Abstract

Red tilapia is in demand by the public as a consumption fish because it has several advantages, namely thick flesh and high nutritional value. This study aims to determine the chemical characteristics and fatty acid profile of red tilapia with harvesting ages of 16, 20 and 24 weeks. This research method used a completely randomized design (CRD) and each carried out 3 replications. The analysis used is the actorial pattern with one factor (16, 20 and 24 week harvesting age treatment). Data were analyzed using Analysis of Variance (ANOVA) and Duncan Multiple Range Test (DMRT) at 95% confidence level. The results showed that the water and protein content increased with increasing harvesting age for red tilapia, while the ash and fat content decreased. The highest water and protein content at 24 weeks of harvest were 80.17% and 17.85%, respectively. Fatty acids in red tilapia consist of 4 SAFA, 1 MUFA and 3 PUFA. The highest fatty acid content of red tilapia, namely palmitic fatty acid, was 27.26% at harvest age of 24 weeks and increased with increasing harvest age.