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All Journal Biofaal Journal Agrikan: Jurnal Agribisnis Perikanan Barakuda 45 Jurnal Abdimas Peradaban
Irmawati, Yuni
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences

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Vibrio sp. Bacteria in the Gills and Kidneys of White Snapper Fish (Lates calcalifer) Irmawati, Yuni; Sudirjo, Fien; Salamun, Sri Mila; Aktaulora, Della
Agrikan Jurnal Agribisnis Perikanan Vol. 17 No. 1 (2024): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v17i1.2153

Abstract

White snapper fish Lates calcalifer is one of the leading fishery commodities that has great potential to be developed due to increasing demand. The problems often faced in white snapper fish cultivation are diseases caused by bacterial infections, including Vibrio sp. This research aims to determine the type of bacteria Vibrio sp. Which infects the gills and kidneys of white snapper fish. Bacterial isolation was carried out on fish that were indicated to be experiencing symptoms of vibriosis, and identification using the Microbact Identification System. The results identification of Vibrio sp bacteria in the gills of white snapper fish are Vibrio parahaemolitycus and Vibrio fluvialis, while in the kidneys are the bacteria Vibrio parahaemolyticus and Vibrio vulnificus.
Nutritional and Carrageenan Content of Kappaphycus alvarezii Seaweed Exposed to Ice-Ice Irmawati, Yuni; Sudirjo, Fien
Barakuda 45: Jurnal Ilmu Perikanan dan Kelautan Vol 6 No 2 (2024): Edisi November
Publisher : Fakultas Perikanan dan Ilmu Kelautan Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/barakuda45.v6i2.602

Abstract

The main source of income for people in Southeast Maluku Regency and Tual City, one of which is the cultivation of Kappaphycus alvarezii seaweed. The problem in cultivating seaweed is when there is an attack of ice-ice disease, which cause a decrease in production yields and quality of K. alvarezii. The target of this research was the nutritional and carrageenan content of K. alvarezii exposed to ice-ice. The parameters observed were nutritional content such as protein, water, ash, fat and carbohydrates as well as carrageenan and gel strenght. The results showed that the nutritional content of K. alvarezii which was exposed to ice-ice, such as 2,01 % protein, 0,14 % fat and 35,74 % carbohydrates, was lower compared to healthy seaweed. However, the water and ash obtained the opposite results, where seaweed exposed to ice-ice was higher, namely 44,66% dan 31,80 %. Carrageenan and gel strenght in healthy seaweed were higher at 58,60 % and 414,86 g/cm2 compared to seaweed exposed to ice-ice, 45,75 % and 404,23 g/cm2.
EFEKTIFITAS ANTIBAKTERI Vibrio sp. DARI EKSTRAK DAUN MANGROVE Rhizopora apiculata Hitijahubessy, Hendro; Irmawati, Yuni
Biofaal Journal Vol 4 No 2 (2023): Biofaal Journal
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/biofaal.v4i2pp081-089

Abstract

Research was carried out by analyzing the antibacterial ability of the ethanol extractof mangrove Rhizopora apiculata leaves against Vibrio sp. Maceration using 70%ethanol resulted in an extract yield of 3.09%. The highest average inhibition zoneresults were found in mangrove leaf extract at a concentration of 100% with aninhibition zone of 24.68 mm. The smallest inhibition zone was found in mangrove leafextract with a concentration of 6.25% with an inhibition zone of 3.85 mm, a positivecontrol inhibition zone (30 mg tetracycline) of 26.35 mm and a negative controlinhibition zone (DMSO 10%) of 0 mm. This can be seen from the results of theaverage inhibition zone which shows strong antibacterial activity of mangrove leafextract at a concentration of 100% and moderate antibacterial activity of mangroveleaf extract at a concentration of 75% to 50% and no antibacterial activity atconcentrations of mangrove leaf extract below 25 %, the positive control inhibitionzone (30 mg tetracycline) was 26.35 mm and the negative control inhibition zone(DMSO 10%) was 0 mm. Phytochemical analysis was also carried out on mangroveleaves with the results showing the presence of several visible secondary metabolites.The secondary metabolites found in Rhizopora apiculata mangrove leaves consist ofalkaloids, flavanoids, steroids, saponins and tannins.
Pembuatan Hand Sanitizer Berbahan Rumput Laut Kappaphycus Alvarezii pada Ohoi Langgur, Kabupaten Maluku Tenggara Irmawati, Yuni; Sudirjo, Fien; Rahalus, Katarina D.
Jurnal Abdimas Peradaban Vol. 5 No. 2 (2024): Jurnal Abdimas Peradaban
Publisher : Global Writing Academica Researching and Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/hh5tnr72

Abstract

Pemanfaatan rumput laut oleh masyarakat di Kabupaten Maluku Tenggara belum optimal, masih terbatas pada penjualan dalam produk mentah sebagai bibit, produk kering, diversifikasi produk olahan makanan dan minuman, dan itu pun belum beragam.  Pada kenyataannya rumput laut memiliki potensi yang sangat besar untuk dikembangkan menjadi berbagai macam produk bernilai tinggi untuk meningkatkan pendapatan masyarakat, salah satunya adalah produk hand sanitizer berbahan rumput laut karena ramah lingkungan, aman digunakan, juga memiliki kandungan senyawa aktif yang bersifat antioksidan, antibakteri dan karaginan yang berperan sebagai pengental, penstabil, dan menjaga kelembaban kulit.  Pelaksanaan kegiatan ini dalam bentuk penyuluhan dan pelatihan untuk meningkatkan pengetahuan, pemahaman dan keterampilan masyarakat akan hand sanitizer berbahan rumput laut.  Hasil kegiatan ini mendapatkan respon positif dari peserta dan pelaksana diminta kerap melaksanakan kegiatan serupa sehingga dapat memanfaatkan sumber daya alam lokal yang dapat dikembangkan menjadi berbagai produk bernilai tambah.
Co-Authors Aktaulora, Della Hendro Hitijahubessy Rahalus, Katarina D. Salamun, Sri Mila Sudirjo, Fien