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All Journal HAYATI Journal of Biosciences Jurnal Ilmu dan Teknologi Kelautan Tropis Maspari Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Maspari Journal EduChemia: Jurnal Kimia dan Pendidikan Science and Technology Indonesia Jurnal Penelitian Sains Jurnal Biologi Tropis IJEMS (Indonesian Journal of Environmental Management and Sustainability) Dinasti International Journal of Education Management and Social Science Journal of Tropical Marine Science SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) SIMBIOSA Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat BIOVALENTIA: Biological Research Journal Jurnal Locus Penelitian dan Pengabdian JOMPA ABDI: Jurnal Pengabdian Masyarakat JAPI: Jurnal Akses Pengabdian Indonesia
Rozirwan .
Department Of Marine Science, Faculty Of Math And Natural Science, Sriwijaya University, Ogan Ilir, South Sumatra 30862, Indonesia
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AKTIVITAS ANTIOKSIDAN EKSTRAK DAUN DAN KULIT BATANG MANGROVE Sonneratia alba DI TANJUNG CARAT, KABUPATEN BANYUASIN, PROVINSI SUMATERA SELATAN Delta, Muhammad; ., Rozirwan; Hendri, Muhammad
Maspari Journal : Marine Science Research Vol 13, No 2 (2021)
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/maspari.v13i2.14577

Abstract

Mangrove Sonneratia alba memiliki potensi sebagai sumber antioksidan yang telah dimanfaatkan oleh berbagai masyarakat berpesisir di Indonesia. Tujuan dilaksanakannya penelitian ini adalah menentukan dan menganalisis potensi aktivitas antioksidan pada kulit batang dan daun mangrove Sonneratia alba di tanjung carat, Kabupaten Banyuasin, Sumatera Selatan. Metode ekstraksi menggunakan pelarut tunggal yaitu etanol dengan melakukan maserasi 48 jam. Analisis antioksidan menggunakan metode DPPH di mana nilainya didapatkan dari persentase inhibisi yang dikonversi melalui tabel probit dan log konsentrasi. Berdasarkan hasil penelitian menunjukkan bahwa kandungan Potensi aktivitas antioksidan pada ekstrak daun S. alba maserasi 1 dan 2 menunjukkan nilai yang lebih kuat dengan didapatkan nilai 20,27 dan 18,62 ppm, sedangkan ekstrak kulit batang S. alba didapatkan nilai sebesar 38,24 dan 22,96 ppm. Baik ekstrak daun dan kulit batang S. alba sama-sama memiliki potensi antioksidan yang sangat kuat.Kata kunci : antioksidan, DPPH, Mangrove, radikal bebas, Sonneratia alba
PHYTOCHEMICAL TEST OF MANGROVE Avicennia alba, Rhizopora apiculata AND Sonneratia alba FROM MUSI RIVER ESTUARY, SOUTH SUMATERA Rahmania, Nadya; Herpandi, Herpandi; Rozirwan, Rozirwan
BIOVALENTIA: Biological Research Journal Vol. 4 No. 2 (2018)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (645.502 KB) | DOI: 10.24233/BIOV.4.2.2018.116

Abstract

Mangrove is one of the plants that has the potential to be developed into medicinal plants. However, further research is needed to prove scientifically the content of secondary metabolites in it. This study aims to identify the secondary metabolites contained from leaves and roots in Avicennia alba, Rhizopora apiculata and Sonneratia alba. The leaves and roots of mangroves extracted by maceration using ethyl acetate. The secondary metabolites contained in mangrove samples obtained by doing phytochemical tests through color tests. Phytochemical test results showed that secondary metabolites contained in mangrove Avicennia alba are flavonoids, steroids/triterpenoids, saponins, and tannins/phenols in leaf samples, whereas in its root samples it contains flavonoids and steroids/triterponoid compounds. Sonneratia alba contains flavonoids, steroids/teriterpenoids, saponins and tannins/phenols in its leaf samples, while the root samples contain flavonoids, steroids/teriterpenoids and tannins/phenols compounds. The leaf samples of mangrove Rhizopora apiculatacontains flavonoid and steroid/triterpenoid compounds whereas in its root samples contains flavonoids, steroids/triterpenoids, saponins as well as tannins/phenols.
Isolasi dan aktivitas antibakteri jamur endofit pada mangrove Sonneratia alba dari Tanjung Carat Kabupaten Banyuasin Sumatera Selatan Anna Heirina; Rozirwan Rozirwan; Muhammad Hendri
Jurnal Penelitian Sains Vol 22, No 1 (2020)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (534.984 KB) | DOI: 10.56064/jps.v22i1.562

Abstract

S. alba is a mangrove that is commonly found on the east coast of Banyuasin. Endophytic fungus can produce a functional compound e.g antibacterial. The purpose of this study is to determine the type, the increase in diameter of colonies and the antibacterial potential in endophytic fungus of S. alba. The research method used were by the isolation of endophytic fungus from leaf, stem and root, the identification of endophytic fungus, the measurement of colony diameter in endophytic fungus and antibacterial activity test using paper disc method. The results of this study found the two genera of endophytic fungus with four species of Aspergillus sp1., Aspergillus sp2., Paecilomyces sp1., and Paecilomyces sp2. The increase in diameter for each colony of endophytic fungus shows the difference every day. Aspergillus sp1. The exponential phase has been visible on the third day with an average diameter increase of 33.70 mm / day. The exponential phase of Aspergillus sp2 was visible on the third day with an diameter increase of 37.74 mm/day. In the endothelium fungi Paecilomyces sp1, the exponential phase was visible on the third day to the seventh day with diameter increase of 13.57 mm/day to 38.07 mm/day. Exponential phase of Paecilomyces sp2. was visible on the third day to the sixth day with diameter increase of 25.25 mm/day to 75.21 mm/day. These four types of endophytic fungus are resistant to bacteria E. coli and S. aureus. Aspergillus sp2. endophytic fungus has the highest inhibitor potency of 14.49 mm in E. coli bacteria. The endophytic fungus Paecilomyces sp2. inhibits bacterial growth of S. aureus with the highest inhibitory potency of 11.61 mm.
Daya Hambat Senyawa Bioaktif Pada Mangrove Rhizophora sp. Sebagai Antibakteri Dari Perairan Tanjung Api-Api, Sumatera Selatan Sri Rahayu; Rozirwan Rozirwan; Anna Ida Sunaryo Purwiyanto
Jurnal Penelitian Sains Vol 21, No 3 (2019)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.656 KB) | DOI: 10.56064/jps.v21i3.544

Abstract

Mangrove memiliki beberapa senyawa yang mampu dijadikan sebagai antibakteri, salah satunya jenis mangrove Rhizophora apiculata. Sampel mangrove jenis R. apiculata diambil dari Tanjung Api-api, Kabupaten Banyuasin, Sumatera Selatan. Tujuan penelitian ini untuk menentukan potensi senyawa bioaktif R. apiculata sebagai antibakteri dan menentukan (KHM) dari ekstrak mangrove terhadap bakteri S. aureus dan E. coli. Metode penelitian mencakup pengambilan sampel mangrove dari bagian akar, batang dan daun, pengeringan dan penghalusan, maserasi dan ekstraksi dengan menggunakan pelarut metanol, uji aktivitas antibakteri, uji (KHM) dan analisis data menggunakan Beda Nyata Jujur (BNJ). Hasil penenlitian menunjukkan mangrove R. apiculata memiliki aktivitas antibakteri paling tinggi 23,9 ± 21,3 mm untuk bakteri E.coli sedangkan bakteri S. aureus memiliki aktivitas antibakteri 14 ± 10,8 mm. Nilai KHM ditunjukkan pada semua ekstrak R. apiculata terhadap bakteri E.coli pada konsentrasi 250 ppm 6,08 ± 6,01 mm dan konsentrasi 2000 ppm batang 6,11 mm.
Teknik Kultur Klon Spesies Dinoflagelata yang Menyebabkan Red Tide di Perairan Pantai Lido, Johor Bahru, Malaysia Rozirwan Rozirwan
Jurnal Penelitian Sains Vol 13, No 1 (2010)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.038 KB) | DOI: 10.56064/jps.v13i1.161

Abstract

Studi ini dilakukan untuk menentukan kultur spesies dinoflagelata yang menyebabkan red tide di perairan Pantai Lido, Johor Bahru pada Juli tahun 2002. Kultur klon dibuat dalam medium ES-DK pada suhu 26_C dan siklus 14:10 jam terang gelap. Sel-sel yang dikultur berbentuk bulat bujur dengan panjang 13-22 μm dan lebar 12-19 μm. Isolat yang dikultur dapat hidup pada salinitas 10-35 PSU, sekalipun pertumbuhan optimumnya adalah 20-25 PSU. Isolat menggunakan amonia dan nitrat sebagai sumber nitrogennya dengan kepadatan tertinggi dalam kultur adalah sekitar 5.264 sel mL−1
Isolasi dan aktivitas antibakteri jamur endofit pada mangrove Avicennia marina dari Pulau Payung Kabupaten Banyuasin Sumatera Selatan Delima A. G. Situmorang; Rozirwan Rozirwan; Muhammad Hendri
Jurnal Penelitian Sains Vol 23, No 3 (2021)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (556.553 KB) | DOI: 10.56064/jps.v23i3.661

Abstract

Isolation of endophytic fungus is the growth of endophytic fungus on new media to obtain the type of endophytic fungus. One of the mangrove plants containing endophytic fungi is Avicennia marina mangroves taken from Payung Island of South Sumatera. This study aims to isolate and identify the type of endophytic fungus, measure the growth rate of isolate diameter and know the antibacterial activity. Methods of this study include identification, growth rate measurement of isolate diameter for seven days and endophytic fungal activity test as antibacterial using Paper Disc method. The results of this study obtained five isolates with three types of endophytic fungi from each root part, stems and leaves of Aspergillus ochraceus, Aspergillus flavus and Aspergillus niger. The lag phase of these three fungi occurs from day of planting until the first day for one day, the exponential phase from the first day until the sixth day for five days, and the stationary phase on the sixth day to the seventh for one day for Aspergillus ochraceus and Aspergillus niger fungi while for Aspergillus flavus fungi yet occur stationary phase. The highest antibacterial activity with inhibit zone was shown by A. flavus fungal isolates ranging from 13,79 ± 1,26 mm for S. aureus and 11,86 ± 1,48 mm for E. coli bacteria, whereas the lowest inhibition zone was indicated by fungal isolates A. ochraceus 8,01 ± 0,45 mm for S. aureus bacteria and 9,34 ± 1,25 mm for E. coli bacteria.
Toxicity test of gastropoda extracts of Littorina scabra and Terebralia sulcata from Payung Island, Musi River Estuary, South Sumatra Dimas Arie Pratama; Rozirwan Rozirwan; Muhammad Hendri
Jurnal Penelitian Sains Vol 23, No 3 (2021)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.828 KB) | DOI: 10.56064/jps.v23i3.660

Abstract

Gastropoda is one of the potentially most common biotas found in mangrove ecosystems and as bioactive compounds that have not been widely studied. Gastropod species Littorina scabra and Terebralia sulcata were found in the Payung Island. This research aimed to determine and compare the potential toxicity between two species of gastropod extract of L. scabra and T. sulcata. This research was conducted in February 2017. The research procedure included sampling and sample preparation, extraction, and toxicity test that Brine Shrimp Lethality Test (BSLT) method. Toxicity test showed LC50 415.58 μg/mL L. scabra while LC50 value from T. sulcata equal to 565.52 μg/mL. From the comparison, the toxicity value of L. scabra gastropod was higher than the T. sulcata type.
Identifikasi Morfologi Dinoflagelata dari Fenomena Ledakan Populasi Alga di Pantai Lido, Johor Bahru Malaysia Rozirwan Rozirwan
Jurnal Penelitian Sains Vol 13, No 2 (2010)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (971.944 KB) | DOI: 10.56064/jps.v13i2.153

Abstract

Studi ini dilakukan untuk memastikan identitas dinoflagelata yang menyebabkan ledakan algae di perairan Pantai Lido, Johor Bahru pada Juli tahun 2002. Kultur klon berhasil ditumbuhkan dalam medium ES-DK pada suhu 26_C dengan siklus pencayaan 14:10 jam terang gelap. Pengamatan spesies dilakukan melalui mikroskop cahaya dan mikroskop elektron (SEM). Sel-sel yang dikultur berbentuk bulat bujur dengan ukuran panjang 13-22 m dan lebar 12- 19 μm. Keseluruhan permukaan valva diliputi oleh duri-duri yang pendek dan berpangkal lebar. Duri-duri tersebut tersebar secara merata pada permukaan sel. Satu duri apikal yang pendek juga ditemukan pada sel. Kolar periflagelanya bercabang. Gelang interkaleri berjalur melintang dan sebagian sel terdapat pedunkel. Ciri-ciri morfologi tersebut menunjukkan bahwa spesies ini adalah Prorocentrum minimum atau Prorocentrum balticum. Namun hasil pengamatan tersebut lebih cenderung sebagai sel P. minimum karena bentuk sel yang tidak simetri.
Actinomycetes yang diisolat dari mangrove Rhizophora apiculata di perairan Tanjung Api-api, Sumatera Selatan Tika Gustiana; Rozirwan Rozirwan; T. Zia Ulqodry
Jurnal Penelitian Sains Vol 23, No 3 (2021)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.823 KB) | DOI: 10.56064/jps.v23i3.662

Abstract

Actinomycetes is one type of endophytic bacteria that lives in the mangrove plant tissues. Bioactive compound which form Actinomycetes can be use as potential medicine in medic industry and pharmacy sector. This study aimed to isolate and identify the kinds of the Actinomycetes bacteria at mangrove Rhizophora apiculata from Tanjung Api-api waters, South Sumatera. This research method included measurement of environmental parameters, mangrove sampling, isolation, characterization and identification of bacteria. The result of research found two isolates of Actinomycetes in the lower roots (AB T4) and leaf (Leaf T2). The isolates code AB T4 had characteristics of moderate colony size, circular shape, entire edge, convex elevation, white colony color, had hyphae, rod-shaped cells, non motile, aerobic, gram positive, negative for oxidase, indole and gelatin, positive for catalase, citrate, urea, ornithine, aesculin, galactose, glucose and trehalose, OF oxidative and fermentative. While the isolates code Leaf T2 had characteristics of moderate colony size, irregular shape, undulate edge, raised elevation, creamy white colony color, had hyphae, gram positive, rod-shaped cells, non motile, aerobic, positive for catalase, ornithine, aesculin, celobiosa, glucose, lactose, melibiosa, sorbitol and trehalose, negative for oxidase, citrate, urea, gelatin and indole, OF oxidative and fermentative. Both isolates AB T4 and Leaf  T2 were identified as Nocardia genus in lower root samples (AB T4) and Actinomadura genus in leaf samples (Leaf T2).
Dinamika Komunitas Fitoplankton Pada Siang dan Malam Hari di Perairan Desa Sungsang Muara Sungai Musi, Sumatera Selatan Fery Pratama; Rozirwan Rozirwan; Riris Aryawati
Jurnal Penelitian Sains Vol 21, No 2 (2019)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (722.479 KB) | DOI: 10.56064/jps.v21i2.535

Abstract

The Sungsang waters are often used by the surrounding community for water transportation, fishing and wash. The correlation of phytoplankton community with the physical-chemical parameters that can be used to determine the condition of the waters. The purpose of this research was to discuss the types of phytoplankton, analyze the community index and correlation between physical - chemical parameters in Sungsang waters. The research was had been done on November 2018, taking of samples and measurements was performed at 3 station points by tides at the day and night in 3 days. Taking of sampels that is phytoplankton and nutrient water samples, measurements of physical - chemical parameters that is DO, temperature, salinity, pH and current velocity, the correlation of phytoplankton community's with physical-chemical parameters are carried out by principal component analysis (PCA). The phytoplankton composition at night was found 39 genera from 4 classes, while during the day there were 41 genera from 5 classes. Percentage of phytoplankton composition class that is Bacillariophyceae (98.77%), Cyanophyceae (0.87%), Dinophyceae (0.29%), Chlorophyceae (0.055%) and Dictyochophyceae (0.014%). The abundance of phytoplankton is range between 298 - 2,533 cells/l with the diversity index of the dominant is medium category, the uniformity index of the dominant is high category and the dominance index of the dominant is low category. Based on the results of PCA for the correlation between phytoplankton communities with physical-chemical parameters during at day with the identifiers is uniformity index, DO, dominance index, phosphate, salinity and current, the identifiers at night is current, pH, nitrate, temperature, phosphate, DO, diversity index and uniformity index, for combined data day and night the identifiers is diversity index, phosphate, uniformity index, abundance, temperature, pH, dominance index and salinity.
Co-Authors . Chaidir ., Renaldi Ade Siswanto Adi Purwandana Alfiansyah, Yustian Rovi Alimin Alimin, Alimin Amanda Astri Pratiwi Febrianti Ananta, Dio Alif Anggraini, Rifka Rimbi Ani Haryati, Ani Aning Puji Saputri Anna Heirina Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna IS Purwiyanto Apon Zaenal Mustopa Arief Rachman Asshidiq, Hasbi Nur Ayu Eka Putri, Wike Chaidir Chaidir Che Abd Rahim Mohamed Daratil Khoiri Mukhlis Delima A. G. Situmorang Delta, Muhammad Dian Anggun Lestari Dianysah, Gusti Dietriech Geoffrey Bengen Dimas Arie Pratama Elisa Wildayana Fatimah Fatimah Fatmalina Febry Fauziyah Fauziyah FAUZIYAH Fauziyah Fauziyah Fauziyah Fauziyah Fauziyah Fauziyah Fery Pratama Firdaus, Mochamad Ramdhan Fitrah Amelia Fitrani Mirna Fitri Agustriani Fitri Agustriani Gaby Ananda Dejulien Gires Usup Gusri, Ariqoh Athallah Gusti Diansyah Gusti Diansyah Hanif Budi Prayitno Hartoni Hartoni Hartoni Hary Widjajanti Hasbi Nur Asshidiq Hefni Effendi Herpandi . Iskhaq Iskandar Ismarti, Ismarti Isnaini Isnaini . Isnaini Isnaini Judistira Siddik Khotimah, Nadila Nur Langgeng Priyanto Lestari, Ning Intan M. Hendri Mei Ida Susanti Meiyerani, Jeni Melki Melki Melki Melki Melki Melki Melki Mohamed, Che Abd Rahim Muhamad Nur Muhammad Delta Muhammad Hendri Muhammad Hendri Muhammad Hendri Muhammad Hendri Muhammad Hendri Muhammad Hendri Muhtadi Muhtadi Muhtadi Muhtadi Mukhlis, Daratil Khoiri Nadila Nur Khotimah Nadila Nur Khotimah Nadila Nur Khotimah Nadya Rahmania, Nadya Neviaty P. Zamani NEVIATY PUTRI ZAMANI Neza Rahayu Palapa Ningsih, Ellis Nurjuliasti Nita Puspita Sari Nuril Azhar Nurlisa Hidayati Nurul Fitriya Oksto Ridho Sianturi Purwiyanto, Anna IS Rahmad Purnama Rahmad Purnama, Rahmad Ramses Ramses Ramses Redho Yoga Nugroho Reftika Ramona Putri Renaldi . restu juniah, restu Rezi Apri Rezi Apri Rifka Rimbi Anggraini Rio Nopandri Rio Nopandri Riris Aryawati Risfidian Mohadi Riswani Riswani Rizky Okta Vianti Rizky Sepferizal Rudi Hartono Sarno Sarno Sepferizal, Rizky Sri Rahayu Sugeha, Hagi Yulia Syamdhora, Riki T. Zia Ulqodry Tengku Zia Ulqodry Tengku Zia Ulqodry Tengku Zia Ulqodry Tika Gustiana Ulqodry, T Zia Vianti, Rizky Okta Wahyudi Wahyudi Wijayanti, Lady Ayu Sri Wike Ayu Eka Putri Wike Ayu Eka Putri Winarta, Yoga Yossy Fitria Yundari, Yundari Yusni Ikhwan Siregar Zia Ulqodry, Tengku