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All Journal JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Tomini Journal of Aquatic Science
Sara Umbekna
Universitas Cenderawasih
Agriculture, Biological Sciences & Forestry Humanities Education Engineering Public Health Other

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Improving the Quality of Smoked Fish Processing for the PKM Program in Hamadi Village, Jayapura City Basa T. Rumahorbo; Diana M. Abulais; Hardi Hamzah; Daniel ZK Wambrauw; Lolita Tuhumena; Yulindra M. Numberi; Sara Umbekna; Nicea R. Paranoan
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol 7 No 3 (2023): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : Dewan Pimpinan Daerah (DPD) Perkumpulan Dosen Indonesia Semesta (DIS) Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/je.v7i3.802

Abstract

Smoked fish products produced by fishing households in Jayapura City are widely known, becoming food products that are popular with city residents and souvenirs for tourists. The development of this superior commodity requires at least four requirements, namely that commodity procurement must be continuous in quantity, quality and at the right time, have good traceability, continuous development and mastery of technology, and adequate mastery of business management. It is within this framework that this community service activity is carried out. The aim of this Community Partnership Service activity is to empower the community to increase their knowledge and skills in using appropriate fish smoking equipment, making hygienic packaging, understanding production and marketing management and making simple cash books in running a smoked fish processing business in Hamadi Village, Jayapura City. This service uses participatory rural appraisal methods, fisheries education, and pretest posttest control group design. Based on the results of the implementation of activities with POKLAHSAR Mama Papua partners on 26-27 August and 22-23 September 2023, it is known that there is an understanding of cash bookkeeping, the use of appropriate smoking equipment, production management and marketing management, as well as making hygienic packaging for smoked tuna. , has increased. It is hoped that this can become a benchmark for the development of the smoked fish business among partners as targeted in the activity objectives.
The Effect of Liquid Organic Fertilizer Application on the Growth of Microalgae Chlorella sp. Lady Ayu Sri Wijayanti; Mochhamad Ikhsan Cahya Utama; Andini Nur Afifah; Annisa Rahmah Septiani; Muhammad Wijatmikko Ginang Pratidnia; Yuyun Yuningsih; Sara Umbekna; Sitty Ainsyah Habibie
Tomini Journal of Aquatic Science VOLUME 4 ISSUE 1, NOVEMBER 2025
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v4i1.33254

Abstract

Microalgae such as Chlorella sp. are valuable for their potential in sustainable food, feed, and bioenergy production, but their cultivation often relies on costly synthetic nutrients. Exploring alternative nutrient sources, such as liquid organic fertilizers, may offer a more economical and environmentally friendly approach to biomass production. This study aims to evaluate the effect of liquid organic fertilizer application on the growth of Chlorella sp. in a closed culture system. Seven treatments were used: one control without fertilizer (K) and six treatments with increasing fertilizer doses (P1–P6). The observed parameters included initial and final cell density, as well as daily growth rate during a seven-day incubation period. The results showed that fertilizer application had a significant effect on the growth enhancement of Chlorella sp. The highest final cell density was recorded in treatment P6, exceeding 6.3 × 10⁷ cells/ml, while a population decline was observed in the control group. The daily growth rate also increased with higher fertilizer doses, with the highest value (μ = 0.36) observed in P6. Linear regression analysis showed a strong relationship between fertilizer amount and growth rate (r = 0.8493; p = 0.0156; R² = 0.7213), indicating that growth variation could be significantly explained by the amount of fertilizer applied. The conclusion of this study is that liquid organic fertilizer has great potential as an efficient and environmentally friendly alternative for microalgae culture media. Proper dosage formulation can support optimal microalgal biomass production. Further research is needed to identify the dominant nutrient content in the fertilizer and to assess the biomass quality for potential applications in food, feed, or bioenergy sectors.
Co-Authors Abda Abda Andini Nur Afifah Annisa Rahmah Septiani Basa T Rumahorbo Daniel Z.K. Wambrauw Hardi Hamzah Lady Ayu Sri Wijayanti Lolita Tuhumena Mochhamad Ikhsan Cahya Utama Muhammad Wijatmikko Ginang Pratidnia Nicea Roona Paranoan Sitty Ainsyah Habibie Yulindra M. Numberi Yuyun Yuningsih