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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.
Rancang Bangun Dan Pengujian Alat Pengering Solar Dryer Sederhana (Constructing and Experiment of Simple Solar Dryer) Frets Jonas Rieuwpassa; Stevy Imelda Murniati Wodi; Eko Cahyono; Rolando Pangumpia
Jurnal FishtecH Vol 8, No 2 (2019)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/fishtech.v8i2.7226

Abstract

Solar dryer is a device that use solar energy to try substances. Using a solar dryer is more hygiene than drying directly into the sun. This experiment aims to construct a solar dryer device and to examine product water content. There are some steps in this experiment which are constructing a solar dryer device and examination of the product water content of two different solar device construction. Products that examined are mackerel tuna dried with salt and without salt. Water content examination is established every 4 hours and 12 hours. All data are examined descriptively. Results showed that temperature in device type 1 are between 40-45 0C dan device type 2 are between 44-45 0C. Results for water content in salted dry fish showed a score of 37.99% in device type 1 and 30.27% in device type 2. For water content in non-salted dry fish showed a score of 38.4% in device type 1 and 27.35% in device type 2. Base on this it can be concluded that device type 2 able to lower water content in products better than device type 1.
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.
Penerapan Tungku Pengasapan Tebiyama Pada Pembuatan Ikan Kayu Frets Jonas Rieuwpassa; Aprelia M. Tomasoa; Wendy A. Tanod; Edward Irsan L. Ferre; Marnens Ch. Karaeng
Jurnal FishtecH Vol 11, No 2 (2022)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/fishtech.v11i2.14271

Abstract

The tebiyama is an alternative for producing wooden fish in the islands such as ’Nusa Utara’ which is abundant in the production of small pelagic fish, especially Decapterus sp. and Euthynnus affinis. The purpose of this study was to see the chemical quality of wooden fish produced using by tebiyama. The stages consist of the preparation stages including weighing, cutting, washing, boiling, removing the bones, drying 1 and drying 2. Furthermore, the fish is smoked using a tebiyama for 30 hours at 60-65oC, every 10 hours the fish is rested for 24 hours. The wooden fish was calculated yield and proximate. The yield results were obtained for Decapterus sp. by 35,9% and Euthynnus affinis by 42,9%. The proximate (moisture, protein, fat and ash) showed that the wooden fish from Decapterus sp. had a moisture content of 16.16%, a fat content of 7.81%, a protein content of 70.02% and an ash content of 2.31% while the wooden fish from Euthynnus affinis had a moisture content of 16.06. %, fat content 10.12%, protein content 70.72% and ash content 2.5%. The moisture content of wooden fish produced with the tebiyama meets SNI 2691.1-2009.
Co-Authors AA Sudharmawan, AA Alfira Opinri Sehangunaung Anggraini Barlian Aprelia M. Tomasoa Aprelia M. Tomasoa Aprelia Martina Tomasoa Aprelia Martina Tomasoa, Aprelia Martina Aprelia Tomasoa Azhari, Deidy Balansa, Walter Biahimo, Syahputra Cahyani, Reni Tri Cahyono, Eko Christian A. Manansang Devitha Cindy Lasaru Dewanto, Didit Kustantio Dewanto, Didit Kustantio Edward Irsan L. Ferre EKO CAHYONO Eko Cahyono, Eko Ely John Karimela Eunike Irene Kumaseh Fitria F. Lungary Frans Gruber Ijong Herjumes Aatjin Ida Ayu Putu Sri Widnyani If'all, If'all Imra Imra Indra Wibowo Irna Yanti Dalawir Jaka F.P. Palawe Jaka Frianto Putra Palawe Jefri Antonius Mandeno Jimi Palawe Joko Santoso Kendek, Tasya Jenifel Kundiman, Gita Artika Putri La Ode Huli Laode Muhamad Hazairin Nadia Lawendatu, Angryani Enjel Maalua, Sheyla Mahihody, Astri Mahihody, Astri Juwita Makisake, Nadia Arlina Maliode, Yunita Isabela Mandeno, Jefri Anthonius Mandiangan, Meyrijean Marnens Ch. Karaeng Marnens Christianto Karaeng Meityn Disye Kasaluhe Melongkade, Regina Juliana Natalia Prodiana Setiawati Novalina M. Ansar Novalina Maya Sari Ansar Novelia Tatinting Nurhikma Nurhikma Obyn I. Pumpente Obyn Imhart Pumpente Pumpente, Obyn Revolson Mege Rolando Pangumpia Rorong, Miranda Serfiyanti Sirih Siegfried Berhimpon Somba, Vira Valentine Stefiani Nofrida Asare Stevy I. M. Wodi Stevy Imelda Murniati Wodi Steward I. Makawekes Takasihaeng, Septania Tampany, Ighen Tampi, Regina Romalya Meilan Tanod, Wendy Tengkue, Fiorenza Puspa Indah Tengkue, Florenza Puspa Indah Tinungki, Maria Notosori Trivonia Kerol Talete Usy N. Manurung Walter Balansa Walter Balansa Waode Nilda Arifiana Effendy Wendy Alexander Tanod Wini - Trilaksani Wodi, Stevy Imelda Murniati Wulandari Wulandari Yana Sambeka