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All Journal Jurnal Akuakultur Indonesia The Journal of Experimental Life Sciences (JELS) El-Hayah : Jurnal Biologi Jurnal Harpodon Borneo Journal of Innovation and Applied Technology Research Journal of Life Science agriTECH Jurnal Sumberdaya Akuatik Indopasifik AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat Media Akuakultur Samakia: Jurnal Ilmu Perikanan Journal of Aquaculture and Fish Health JURNAL BAHARI PAPADAK Journal of Fisheries & Marine
Ating Yuniarti
Department Of Aquaculture, Faculty Of Fisheries And Marine Science, Universitas Brawijaya. Malang. Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Medicine & Pharmacology Neuroscience Physics Social Sciences Other

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Spore production and sporulation efficacy of Bacillus subtilis under different source of manganese supplementation [Produksi Spora dan Efisiensi Sporulasi Bacillus subtilis dengan Suplementasi Mangan dari Sumber yang Berbeda] Ating Yuniarti; Nasrullah Bai Arifin; Muhammad Fakhri; Anik M. Hariati
Jurnal Ilmiah Perikanan dan Kelautan Vol. 11 No. 2 (2019): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v11i2.15250

Abstract

AbstractBacillus is a species widely used as a probiotic in the aquaculture industry. The Bacillus spores have more advantages than their vegetative ones, and an addition of minerals such as calcium, magnesium, and manganese can improve the spore production. The purpose of this study was to determine the effect of different sources of manganese on the production and sporulation efficacy of B. subtilis SB3. The sources of manganese used in this study were manganese chloride (MnCl2) and manganese sulfate (MnSO4) at the concentration of 10 mM. Media without manganese supplementation was used as a control. The results showed that there was a significant effect of different manganese sources on the spore production of B. subtilis SB3. The highest spore production was found in media with MnCl2 supplementation with the total spore of 8.77 x 107 spores. mL-1. However, spore production with MnSO4 supplementation was still higher (22.7%) compared to that without manganese supplementation. The decrease in spore production with MnSO4 supplementation was possible due to the sulfate inhibition. The high spore production in media with MnCl2 supplementation was also preceded by the high production of vegetative cells from B. subtilis SB3 (2.54 x 108 cells. mL-1). The results indicated that manganese could stimulate both vegetative cell growth and its spores. The highest sporulation efficacy (35%) was also achieved in media with MnCl2 supplementation. On the other hand, the germination rate of B. subtilis SB3 spores was not influenced by manganese supplementation.Abstrak Bacillus adalah species yang banyak digunakan sebagai probiotik pada industri akuakultur. Dalam bentuk spora, species ini lebih banyak mempunyai kelebihan dibandingkan dalam bentuk vegetatifnya dan peningkatan produksi sporanya dapat dilakukan dengan penambahan mineral seperti kalsium, magnesium dan mangan. Tujuan penelitian ini adalah untuk mengetahui pengaruh sumber mangan yang berbeda terhadap produksi dan efisiensi sporulasi B. subtilis SB3 indigenous akuatik. Sumber mangan yang dipakai dalam penelitian ini adalah mangan klorida (MnCl2) dan mangan sulfat (MnSO4) sebanyak 10 mM dan sebagai kontrol digunakan media tanpa suplementasi mangan. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang nyata penggunaan sumber mangan yang berbeda terhadap produksi spora. Produksi spora tertinggi didapatkan pada media dengan suplementasi MnCl2 sebanyak 8,77 x 107 spora. mL-1. Sedangkan produksi spora dengan suplementasi MnSO4 juga masih lebih tinggi (22,7%) dibandingkan tanpa suplementasi magan. Penurunan produksi spora pada media dengan penambahan mangan sulfat diduga karena adanya penghambatan oleh sulfat. Tingginya produksi spora pada media dengan suplementasi MnCl2 sebelumnya juga didahului dengan tingginya produksi sel vegetatif dari B. subtilis SB3 (2,54 x 108sel. mL-1). Hal ini menunjukkan bahwa mangan dapat menstimulasi baik pertumbuhan sel vegetatif dan sporanya. Efisiensi sporulasi tertinggi juga dicapai pada media dengan suplementasi MnCl2 sebesar 35%. Di sisi lain, kemampuan germinasi spora B. subtilis SB3 tercatat sama dan tidak dipengaruhi oleh suplementasi mangan.
Effects of Various Nitrogen Sources on the Growth and Biochemical Composition of Chlorella sp. Ating Yuniarti; Muhammad Fakhri; Nasrullah Bai Arifin; Anik Martinah Hariati
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 2 (2023): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v15i2.43182

Abstract

Highlight Research Each species of microalga has a preferable nitrogen source for their optimal growth. The nitrogen sources in the grown media affected the growth rate and biochemical composition of Chlorella FNUB01. (NH2)2CO (urea) was found to be the best alternative nitrogen source for Chlorella FNUB01. For producing 1 g of Chlorella FNUB01, the use of urea reduced the cost of medium by 72.6%. Abstract Chlorella sp. is a potential microalgae species to be produced commercially for feed, growth accelerator, and immuno-modulator in fish and shrimp culture. This study aimed to evaluate the various nitrogen sources on the growth, biomass production, and biochemical composition of Chlorella sp. FNUB01. The nitrogen sources used in this study were urea (NH2)2CO, potassium nitrate (KNO3), and ammonium nitrate (NH4NO3). Sodium nitrate (NaNO3) was used as a control as it is a part of the commercial medium BG-11. Generally, the sources of nitrogen in the media affected the growth and chemical composition of Chlorella sp. FNUB01. This green microalga grew better in the urea-containing medium which accounted for 1.5 times the concentration of that cultured in BG-11 (40 x106 cells. mL-1). Meanwhile, this microalgae species experienced the lowest growth when cultured in NH4NO3-containing medium. The biomass productivity of Chlorella sp. FNUB01 cultured in urea (0.93 g.L-1) was comparable to those grown with NaNO3 as the N source. A similar pattern was recorded for protein, chlorophyll, and carotenoid content as these biochemical contents were affected by N availability in the medium. Urea was an alternative low-cost N source for the culture of Chlorella sp. FNUB01. Replacement of NaNO3 with urea could reduce the cost of the medium by 72.6%.
Co-Authors A.P.W Marhendra Abd Rahem Faqih Agung Setia Abadi Andriawan, Soni Anik Hartinah Mariati Anik M. Hariati Anik Martina Hariati Anik Martinah Annisa Farhana Dewi Arief Prajitno Arief Prajitno Arief Prajitno, Arief Arifin, Nasrullah Bai Arning Wilujeng Ekawati Bao, Hung Tran Budianto Budianto C Anam Cheng, Phillip T. Citra Satrya Utama Dewi Dewa Gede Raka Wiadnya Diana Permatasari Endang Yuli Herawati Happy Nursyam Hariati, Anik Martinah M. Indra Wahyu Pratama Marsoedi Marsoedi Mohamad Fadjar Muammar Kadhafi Muhammad Fakhri Muhammad Fakhri Muhammad Fakhri Muhammad Fakhri Muhammad Fakhri Nasrullah Bai Arifin Nasrullah Bai Arifin Nasrullah Bai Arifin Nasrullah Bai Arifin Rani Yuwanita Rika Putri Rusmawanto, Rusmawanto Septi Anitasari Sitti Khairul Bariyyah Sri Andayani Sri Andayani Sri Andayani Sri Andayani Suleman Suleman Suleman Suleman Wahyu Endra Kusuma