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Aktivitas Antijamur dari Bakteri Sedimen Mangrove Terhadap Candida albicans dan Malassezia furfur Wilis Ari Setyati; Ananda Arifidyani; AB Susanto
Jurnal Kelautan Tropis Vol 25, No 3 (2022): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v25i3.15114

Abstract

Candida albicans and Malassezia furfur are fungal pathogens that can cause skin infections. This disease can be easily transmitted from one individual to another. The use of antibiotic drugs can cause pathogenic fungi to become resistant. Therefore, there is a need for the development of new antifungal substances, one of which comes from mangrove sediment bacteria. This research was conducted with the aim of obtaining bacterial isolats from mangrove sediments that have the ability to fight the fungal pathogens Candida albicans and Malassezia furfur. The method in this research is descriptive exploratory laboratory which includes isolation sampling and isolat purification, morphological characterization, screening, antifungal activity test and biochemical test. The results of this study were obtained 3 bacterial isolats that have antifungal activity against the fungal pathogens Candida albicans and Malassezia furfur. The results of the identification of biochemical tests showed that the isolat S.ISP2 was identified as the genus Pseudomonas; isolat S.ISP4 identified as Genus Moraxella; and isolat KJ.MA1 identified as Genus Vibrio  Candida albicans dan Malassezia furfur merupakan patogen jamur yang dapat menyebabkan penyakit infeksi kulit. Penyakit ini dapat dengan mudah ditularkan dari satu individu ke individu lainnya. Penggunaan obat antibiotik dapat mengakibatkan jamur patogen menjadi resisten. Oleh karena itum eprlunya ada pengembangan zat antijamur baru yang salah satunya berasal dari bakteri sedimen mangrove. Penelitian ini dilakukan dengan tujuan untuk mendapatkan bakteri isolat dari sedimen mangrove yang memiliki kemampuan untuk melawan jamur patogen Candida albicans dan Malassezia furfur. Metode pada penelitian ini adalah deskriptif eksploratif laboratory yang meliputi sampling isolasi dan purifikasi isolat, karakterisasi morfologi, skrining, uji aktivitas antijamur dan uji biokimia. Hasil dari penelitian ini adalah didapatkan 3 bakteri isolat yang memiliki aktivitas antijamur terhadap jamur patogen Candida albicans dan Malassezia furfur. Hasil identifikasi uji biokimia menunjukkan bahwa isolat S.ISP2 teridentifikasi sebagai Genus Pseudomonas; isolat S.ISP4 teridentifikasi sebagai Genus Moraxella; dan isolat KJ.MA1 teridentifikasi sebagai Genus Vibrio. 
Potensi dan Strategi Pengembangan Budidaya Rumput Laut di Desa Randusanga Kulon, Brebes Joitry Silvia Sitompul; AB Susanto; Wilis Ari Setyati
Journal of Marine Research Vol 11, No 4 (2022): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v11i4.35261

Abstract

Desa Randusanga Kulon adalah daerah pertambakan yang digunakan untuk budidaya rumput laut dengan kondisi tambak yang cukup dangkal dengan substrat yang berlumpur berwarna hitam. Tujuan penelitian ini adalah untuk mengetahui karakteristik lokasi budidaya rumput laut, potensi dan strategi pengembangan budidaya rumput laut di Desa Randusanga Kulon, Brebes. Penelitian merupakan penelitian deskriptif yang menggunakan pendekatan kuantitatif dengan metode survey. Penelitian ini menggunakan instrument yaitu kuesioner, wawancara, observasi dan dokumentasi. Hasil identifikasi faktor strategis internal terdapat 5 kekuatan dan 5 kelemahan, factor eksternal terdapat 5 peluang dan 5 ancaman. Nilai IFAS sebesar 3,28 dan nilai EFAS adalah 3,05 dalam matriks IE berada pada sel I, yaitu menggambarkan tumbuh dan berkembang. Berdasarkan analisis SWOT diperoleh 12 alternatif strategi. Prioritas strategi yang terpilih dengan menggunakan analisis QSPM adalah meningkatkan keterampilan dalam membudidaya dan pengolahan rumput laut (nilai TAS 5,21), memperluas dan mempertahankan jaringan penjualan rumput laut (nilai TAS 5,02) dan menignkatkan pelatihan/ pendampingan kepada petani rumput laut saat budidaya maupun pasca panen (nilai TAS 4,69). Village Randusanga Kulon is area used farm _ for cultivation grass sea with condition enough pond _ shallow with muddy substrate _ colored black. Destination study this is for knowing characteristics location cultivation grass sea, potential and strategy development cultivation grass the sea in the village Randusanga Kulon, Brebes. Study is study descriptive that uses approach quantitative with survey method. Study this using the instrument, namely questionnaire, interview, observation and documentation. Results identification factor internal strategic there are 5 strengths and 5 weaknesses, external factors there are 5 chances and 5 threats. IFAS value is 3.28 and EFAS value is 3.05 in IE matrix is located on cell I, i.e describe grow and growing. Based on SWOT analysis obtained 12 alternatives strategy. Priority chosen strategy with use QSPM analysis is increase Skills in cultivate and processing grass sea (TAS value 5,21), expand and maintain network sale grass sea (TAS value 5.02) and boost training / mentoring to farmer grass sea moment cultivation nor post harvest (TAS value 4.69).
Perbedaan Pertumbuhan Rumput Laut Kappaphycus alvarezii Terhadap Jarak Tanam Muhamad Ihsan; Rini Pramesti; AB Susanto
Journal of Marine Research Vol 12, No 3 (2023): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v12i3.36431

Abstract

Rumput laut merupakan salah satu komoditas ekonomi yang menjadi unggulan Indonesia dan jenis yang banyak dibudidayakan adalah jenis Eucheuma cottonii (Kappaphycus alvarezii) dan Eucheuma spinosum. Usaha peningkatan produksinya dikembangkan melalui modifikasi metode budidaya untuk mencapai hasil produksi yang maksimal. Jarak tanam merupakan salah satu faktor yang berpengaruh terhadap pertumbuhan dan peningkatan produksi. Penelitian ini bertujuan menguji perbedaan jarak tanam terhadap laju pertumbuhan rumput laut K. alvarezii. Metode penelitian yang digunakan adalah metode kuantitatif dengan perlakuan berupa jarak tanam. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap dengan 3 perlakuan jarak tanam (20 cm, 30 cm, 40 cm) dan masing-masing perlakuan dengan tiga ulangan. Parameter yang diamati yaitu laju pertumbuhan spesifik mingguan, laju pertumbuhan mutlak dan kelulushidupan K. alvarezii. Hasil penelitian menunjukkan jarak tanam yang berbeda berpengaruh terhadap pertumbuhan mutlak dan laju pertumbuhan spesifik serta terdapat perbedaan yang nyata dari tiap perlakuan dari waktu ke waktu. Hasil analisa statistik menunjukkan peningkatan pertumbuhan pada masing-masing perlakuan dari setiap waktu pengukuran. Jarak tanam yang memberikan hasil pertumbuhan terbaik pada jarak tanam 30 cm dengan hasil berat rata-rata 545,9 gr dan rata-rata laju pertumbuhan spesifik 3,84% per hari.  Seaweed is one of Indonesia’s leading economic commodities. The species that are widely cultivated in Indonesian waters are Eucheuma cottonii (Kappaphycus alvarezii) and Eucheuma spinosum. Efforts to increase production are developed through modification of cultivation methods to achieve maximum production results. Plant spacing is one the factors that affect growth and increased production in relation to nutrient absorption because the spacing will affect the movement of water carryiing nutrients. This study aims to examine differences in plant spacing on the optimal growth rate of K. alvarezii seaweed for the growth of K. alvarezii. The research method used is a quantitative method with treatment in the form of spacing. The experimental design used was a completely randomized design using 3 spacing treatments (20 cm, 30 cm, 40 cm) and 3 replications. Parameters observed were weekly specific growth rate, absolute growth rate and survival rate of K. alvarezii. The results showed that different plant spacing had an effect on absolute growth and specific growth rate and there were significant differences in each treatment from time to time. The results of statistical analysis showed an increase in growth in each treatment from each measurement time. The spacing that gave the best and optimal growth results was found in the 30 cm spacing treatment by producing an average weight gain of 545,9 g and an average specific growth rate of 3,84% per day.
Karakterisasi nanokalsium tulang ikan kakap merah (Lutjanus malabaricus) dengan variasi waktu ekstraksi: Characterization of red snapper (Lutjanus malabaricus) bone nanocalcium with variations in extraction time Novia Anggraeni; Eko Nurcahya Dewi; Antonius Budi Susanto; Putut Har Riyadi
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 27 No 3 (2024): Jurnal Pengolahan Hasil Perikanan Indonesia 27(3)
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v27i3.50268

Abstract

Calcium (Ca) is a vital macronutrient required by the body. An inadequate calcium intake may result in bone health issues. One source of calcium is the red snapper fish bone waste. The optimal absorption of calcium in the body occurs when it is present in a minute form, especially in the form of nanocalcium.The primary objective of this study was to establish the optimal extraction time for generating nanocalcium from red snapper fishbone flour, taking into account the moisture content, particle size, and yield. The extraction of nanocalcium from red snapper fish bone flour was accomplished using a solution of NaOH 1N (1:3) with extraction times of 30, 60, and 90 min. The chemical composition, yield, particle size, calcium, and phosphorus content of red snapper fish bone flour were assessed.The analysis of red snapper fish bone nanocalcium included evaluations of moisture content, particle size, yield, and nanokalsium structure. The particle size was determined using a Particle Size Analyzer (PSA), whereas the nanocalcium structure was examined using a Scanning Electron Microscope (SEM). The data obtained from the research revealed that the red snapper fish bone flour had a yield of 85.57%, particle size of 1,029.69 nm, moisture content of 5.52%, ash content of 78.82%, protein content of 18.11%, fat content of 2.02%, calcium content of 20.07%, and phosphorus content of 9.95%. The most effective treatment for producing nanocalcium from red snapper fish bones with a moisture content of 3.63%, yield of 6.94%, and particle size of 440.3 nm is the 90-minute extraction process.
Effect of Liquid Fertilizer on Seedling Enhalus acoroides Seeds (Linnaeus f.) Royle 1839 (Fam: Hydrocharitaceae) Chamidy, Ardian Nurrasyid; Widianingsih, Widianingsih; Munasik, Munasik; Riniatsih, Ita; Susanto, AB
Jurnal Kelautan Tropis Vol 27, No 1 (2024): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v27i1.21066

Abstract

The decrease in seagrass coverage and ecosystem harm to seagrass meadows is an annual occurrence resulting from both natural and human activities.  Seagrass seeding has been deemed an effective restoration method, but its application is restricted by suboptimal environmental conditions and constraints associated with directly planting seagrass seeds in their natural habitat. The influence of environmental parameters, particularly nutrients, significantly affect on seagrass seed survival. NPK liquid fertilizer is commonly used in aquatic plants and is readily accessible in the market. It serves as a crucial source of macronutrients for seagrass. This study investigates the impact of different concentrations of NPK liquid fertilizer on the survival rate, growth, and chlorophyll, a content of E. acoroides seedlings. The study took place between March and May 2023 at the marine biology laboratory of the marine science study program at Diponegoro University's Faculty of Fisheries and Marine Science. According to the Manova statistical test, the NPK liquid fertilizer had an impact on the growth rate, biomass, and chlorophyll-a. The seagrass seeding container of E. acoroides treated with a liquid fertilizer concentration of 4.5 ml/100l exhibited the highest average growth rate of 0.29 cm/day and a chlorophyll-a value of 12.395 mg/g, with a survival rate of 100%. Causal connections between statements ensure logical construction. In contrast, seedlings without liquid fertilizer treatment showed the lowest growth rate of 0.19 cm/day and chlorophyll-a values of 5.169 mg/g, with a survival rate of 85.19%. Technical term abbreviations such as 'cm/day' and 'mg/g' are explained when first used to ensure clarity. Based on these findings, using liquid fertilizer with a concentration of 4.5 ml/l exhibits potential for restoring seagrass ecosystems. 
Variations in Milling Time and Their Impact on the Bio-Calcium Properties of Red Snapper Fish Bones Anggraeni, Novia; Dewi, Eko Nurcahya; Susanto, Antonius Budi; Riyadi, Putut Har
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 19, No 3 (2024): December 2024
Publisher : :Agency for Marine and Fisheries Research and Human Resources, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.918

Abstract

Calcium is a macromineral essential by human body, with deficiencies often leading to bone-related issues. Red snapper bone waste is a source of calcium. The bioavailability of calcium is maximized when present in microscopic particles, such as bio-calcium. This study aims to identify the optimal milling time to produce bio-calcium from red snapper bones, evaluating parameters such as water content, particle size, and yield. Biocalcium was extracted from red snapper bone meal using a 1 N NaOH solution (1:3 ratio) with milling times of 1, 2, and 3 h. Analysis of the red snapper bone meal including yield, particle size, chemical composition, calcium, and phosphorus content. The bio-calcium was characterized based on water content, particle size, yield, Fourier-transform infrared spectroscopy (FTIR), and morphological structure using a scanning electron microscope (SEM). The results demonstrated that a 3-hour milling time yielded bio-calcium with a particle size of 410.8 nm, a water content of 4.51 ± 0.15%, and a yield of 4.12 ± 0.03%. SEM revealed a uniform morphology. FTIR spectra indicated the presence of carbonate, amine, hydrocarbon, and hydroxyl groups, suggesting residual organic substances such as protein, fat, and water. The uniform spectra across all samples highlight the consistency of the extraction process, ensuring a similar chemical composition. 
Pertumbuhan Rumput Laut Kappaphycus alvarezii (Doty, 1985) dengan Metode Lepas Dasar Prayudha, Muhammad Rifky; Pramesti, Rini; Susanto, AB
JURNAL ENGGANO Vol. 9 No. 2 (2024)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jenggano.9.2.208-215

Abstract

Environmental factors have affected seaweed cultivation. Productivity can be increased by using the right method. Seaweed production is related to brightness and photosynthetic processes which are affected by planting depth. This study aims to examine the effect of differences in depth on the growth rate of K. alvarezii with the off-bottom cultivation method in the waters of Lontar Village, Serang Regency, Banten Province. Randomized Block Design was used as the experimental design in this study. Cultivation depth of 30 cm, 50 cm and 70 cm were used as different treatments, each with three groups and 5 replications. The growth of sample weight was observed every week for six weeks as the main parameter. Water quality (temperature, salinity, brightness, pH, current velocity, nitrate, phosphate and dissolved oxygen) was observed as another parameter. The results showed that weight growth is influenced by the depth of cultivation. The 30 cm depth has the highest growth rate with an absolute growth of 890 grams and a specific growth rate of 2.85% per day.   Keywords : Kappaphycus alvarezii, depth, growth rate
Hubungan Pasang Surut Terhadap Produktivitas Tangkapan Udang Dalam Area Padang Lamun di Perairan Babalan Demak Wicaksono, Dhanang Hari; Susanto, AB; Mahendra, Bima Satria; Kuncorowati, Ananda Tiara Ade; Merdekawati, Windu; Sembiring, Melisa Octaviani
Jurnal Ilmiah Multidisipin Vol. 3 No. 5 (2025): Jurnal Ilmiah Multidisiplin, Mei 2025
Publisher : Lumbung Pare Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60126/jim.v3i5.920

Abstract

Penelitian ini bertujuan untuk mengetahui hubungan antara pasang surut air laut terhadap produktivitas hasil tangkapan udang di perairan Desa Babalan, Kabupaten Demak. Metode yang digunakan meliputi random sampling, observasi langsung, pengambilan sampel air, dan pengukuran pasang surut selama tiga hari. Alat tangkap yang digunakan adalah Wangkong dan Tramel Net. Hasil penelitian menunjukkan bahwa pasang surut memiliki pengaruh signifikan terhadap jumlah tangkapan udang. Trip pertama dengan kondisi pasang surut yang stabil menghasilkan tangkapan tertinggi. Parameter perairan seperti pH, suhu, dan salinitas juga turut mempengaruhi produktivitas. Hasil tertinggi tercatat pada pH 8,7 dan suhu 29,1°C. Udang putih (Litopenaeus vannamei) merupakan spesies yang paling dominan tertangkap. Kesimpulannya, stabilitas pasang surut dan kualitas lingkungan perairan merupakan faktor penting dalam menentukan keberhasilan penangkapan udang.
Analysis of the Relationship Between Sea Surface Temperature, Chlorophyll-a, and Spanish Mackerel (Scomberomorus Commerson) Catch in the Java Sea Widodo, Nabila Azzahro; Susanto, AB; Suryono, Suryono
Jurnal Ilmiah Multidisipin Vol. 3 No. 6 (2025): Jurnal Ilmiah Multidisiplin, Juni 2025
Publisher : Lumbung Pare Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60126/jim.v3i6.987

Abstract

Pati regency is a coastal area that contributes significantly to Indonesia’s fisheries sector. One if its major fishing ports, PPP Bajomulyo, serves as a hub for fishing activities, with catches ranging from small to large pelagic fish, including Spanish mackerel (Scomberomorus commerson). This study aims to examine to relationship between oceanographic parameters and Spanish mackerel catch volumes at PPP Bajomulyo over the 2021-2023 period. A survey-based approach incorporating satellite image overlay was employed. The analysis of non-linier relationships between variables was conducted using Generalized Additive Model (GAM), implemented in RStudio. Satellite image processing was performed using SeaDAS, while spatial analysis was carried out in ArcGIS. The findings reveal that the interaction between sea surface temperature (SST) and chlorophyll-a concentrations accounted for 11,44% oof catch variability. Elevated SST above 29,5 °C were associated with increased catch rates, whereas extreme temperature (>35 °C or <28 °C) corresponded with significant declines. Chlorophyll-a exerted a relativity weak influence on catch, suggesting that although it serves as a proxy for primary productivity, Spanish mackerel distribution is more strongly governed by thermal conditions and prey availability. The study further identified that optimal fishing grounds were predominantly located in northern Central Java waters, particularly during seasons characterized by favorable oceanographic conditions.
ANALISIS KESESUAIAN KUALITAS PERAIRAN LAHAN TAMBAK UNTUK BUDIDAYA RUMPUT LAUT (Gracilaria sp.) DI KECAMATAN LANGSA BARAT, KOTA LANGSA Susanto, AB; Siregar, Rinawati; Hanisah, Hanisah; Faisal, Teuku Muhammad; Harahap, Antoni
JFMR (Journal of Fisheries and Marine Research) Vol. 5 No. 3 (2021): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.03.18

Abstract

Rumput laut (Gracilaria sp.) merupakan salah satu hasil perairan yang memiliki peluang cukup besar di bidang budidaya. Kualitas perairan di lahan tambak yang sesuai untuk tempat budidaya akan menunjang hasil produksi rumput laut meningkat. Tujuan dari penelitian ini ingin mengkaji kesesuaian kualitas perairan lahan berupa tambak budidaya di Kecamatan Langsa Barat, Kota Langsa, Aceh. Metode yang digunakan adalah survey dilapangan dengan melihat karakteristik dan tingkat kelayakan lahan tambak budidaya rumput laut berdasarkan parameter fisika (suhu, kecerahan, kedalaman, kecerahan, substrat dan pasang surut) dan parameter kimia (salinitas, pH, oksigen terlarut, fosfat dan nitrat). Pengambilan sampel sebanyak 5 stasiun dengan 3 titik ditentukan dengan pengambilan sampel berdasarkan letak dan sumber air tambak. Data hasil penelitian dianalisis dengan menggunakan metode pembobotan. Setelah diperoleh nilai skor dari setiap parameter pada setiap titik pengamatan, kemudian dilakukan penilaian sesuai (S1) dengan kisaran nilai 68–87, cukup sesuai (S2) dengan kisaran nilai 48–67 dan tidak sesuai (N) dengan kisaran nilai 28–47. Dari hasil analisis data diperoleh hasil bahwa stasiun I, II dan IV dalam kategori sesuai (S1) sedangkan stasiun III dan V dalam kategori cukup sesuai.
Co-Authors Ali Ridlo Ananda Arifidyani Andiska, Prismabella Wilis Anggara Mahardika Anggraeni, Novia Antoni Harahap Ardiawan Pandu Romenda Ardiawan Pandu Romenda Atiqoh, Lailatul Awalina Choirunnisa Rachmawati Bibin Bintang Andriana Budi Prasetyo C. Wiencke Chamidy, Ardian Nurrasyid David Nugroho Deasy Fitria Utami Delicia Yunita Rahma Delicia Yunita Rahma Devi Aulia Zeril Oktavia Djohan Djohan Dwi Haryanti, Dwi Dwi Susilaningsih DWI SUSILANINGSIH Eko Nurcahya Dewi Eko Nurcahya Dewi Ferdy Semuel Rondonuwu Ferry Fredy Karwur G. O. Kirst Gunawan Widi Santosa Hadi Endrawati Handung Nuryadi Hanisah Hanisah Hanisah, Hanisah Harahap, Antoni Helly de Fretes Heriawan, Fauzan Heriyanto Heriyanto Iqna Kamila Abfa Irwani Irwani Ita Riniatsih Ita Widowati Joitry Silvia Sitompul Kuncorowati, Ananda Tiara Ade Leenawaty Limantara Mada Triandala Sibero Mahendra, Bima Satria Maylinda Dian Puspitasari Muhamad Ihsan Muhammad Reza Yanuar Rahman Munasik Munasik Nirwani Nirwani Novia Anggraeni Ocky Karna Radjasa Paulus Damar Bayu Murti Pola Risda Aswita Silitonga Pradhana, Handhikka Daffa Wira Prayudha, Muhammad Rifky Puspita Sari Harahap Putut Har Riyadi Putut Har Riyadi Rahma Nimas Healthy Jayanti Retno Hartati Ria Azizah Rifana Sobari Rifana Sobari Rinawati Siregar Rini Pramesti Rotua Malau Sembiring, Melisa Octaviani Siregar, Rinawati Subagiyo Subagiyo Suryono Suryono Tasya Afifah Ilmiah Tatas H.P. Brotosudarmo Teuku Muhammad Faisal Teuku Muhammad Faisal, Teuku Muhammad Triana Hanani Wa Ode Rima Alam Sari Bolu Wahid Agung Saputra Wicaksono, Dhanang Hari Widianingsih Widianingsih Widodo, Nabila Azzahro Wilis A Setyati Wilis Ari Setyati Windu Merdekawati Yohanes Oktaviaris Zalsabila Sulistiana