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Irsan Irsan
Mahasiswa S2 Ilmu Perpustakaan UIN Alauddin
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Journal : Biosel: Biologi Science and Education

 1 
Bioakumulasi Logam Berat Merkuri (Hg) Pada Mangrove Jenis Rhizophora Mucronata Di Teluk Kayeli Kabupaten Buru Ismail, Irwan; Mangesa, Rosita; Irsan, Irsan
BIOSEL (Biology Science and Education): Jurnal Penelitian Science dan Pendidikan Vol 9, No 2 (2020): BIOSEL (Biology Science and Education): Jurnal Penelitian Science dan Pendidikan
Publisher : INSTITUT AGAMA ISLAM NEGERI AMBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (173.915 KB) | DOI: 10.33477/bs.v9i2.1630

Abstract

Kayeli Bay is a water in Buru Regency which has very important value in terms of ecological and economic functions. During its development, the ecosystem in Kayeli Bay bears the burden of pollution, especially heavy metal mercury as a result of the people's gold mining on Buru Island which uses Hg to get pure gold. Hg can accumulate in the environment, especially deposited in the sediments in Kayeli Bay waters. Mangrove plants that generally grow in estuary and coastal environments are a place for sediment accumulation. This plant has the ability to absorb and accumulate heavy metals, one of which is R. mucronata. This study aims to analyze the concentration of heavy metal Hg in mangroves of R. mucronata and sediments, and to analyze the bioaccumulation of heavy metal Hg in R. mucronata in Kayeli Bay, Buru Regency. Samples were taken from 3 stations, namely the Anahoni River Estuary (Station I), the Wailata River Estuary (II Station) and the Waeapo River Estuary (III Station). Each station has 2 sampling points (replicates). Determination of the concentration of Hg metal in the sample using the CV-AAS method. The average value of Hg concentration in the roots was higher than the bark and leaves of the mangrove R. mucronata, but the concentration was lower than the sediment and was still below the critical value of Hg for plants. The average value of sediment Hg concentration is still below the sediment quality standard. In this study, R. mucronata mangroves were excluder and phytostabilized, where there was a limitation on the absorption of heavy metal Hg from water and sediment and the most Hg accumulation was found in the roots. Keywords: Bioaccumulation, Mercury, Rhizophora mucronata, Kayeli Bay
Pemanfaatan Daun Cengkeh (Syzygium aromaticum L.) Dalam Proses Pembuatan Virgin Coconut Oil (VCO) Mangesa, Rosita; Irsan, Irsan
Biosel Biology Science and Education Vol. 9 No. 2 (2020): BIOSEL (Biology Science and Education: Jurnal Penelitian Science dan Pendidikan
Publisher : INSTITUT AGAMA ISLAM NEGERI AMBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (375.48 KB) | DOI: 10.33477/bs.v9i2.1634

Abstract

The clove leaves are part of the clove plant which rarely used, and if you look at them, the clove leaves have active compounds that can be functioned as antibacterials. Meanwhile, Virgin Coconut Oil or called VCO, is processed from coconut milk as the essential ingredient, and if it is not processed correctly, VCO will usually have a short shelf life or can be damaged quickly. This study aims to determine the quality of VCO by adding clove leaves in its processing. Based on the results of the study, it can be seen that the quality of VCO with the addition of clove leaves for the indicator of water content and the free fatty acid number is not following the Indonesian National Standard (SNI). In contrast, the indicator for the VCO peroxide number with a mixture of clove leaves has good quality according to the SNI standard. Based on the results of the study, it can be seen that the quality of VCO with the addition of 100 grams of clove leaves for indicators of water content and fatty acid numbers, namely 2.9% and 0.69%, is high or above the SNI standard limit. In comparison, the quality of VCO with the addition of 100 grams of clove leaves with indicators a peroxide value of 0.7 mg ek/ kg or less than 2 mg ek/kg has good quality based on Indonesian National Standard. Keywords: Quality, VCO
Bioakumulasi Logam Berat Merkuri (Hg) Pada Mangrove Jenis Rhizophora Mucronata Di Teluk Kayeli Kabupaten Buru Ismail, Irwan; Mangesa, Rosita; Irsan, Irsan
Biosel Biology Science and Education Vol. 9 No. 2 (2020): BIOSEL (Biology Science and Education: Jurnal Penelitian Science dan Pendidikan
Publisher : INSTITUT AGAMA ISLAM NEGERI AMBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (479.031 KB) | DOI: 10.33477/bs.v9i2.1637

Abstract

Kayeli Bay is a water in Buru Regency which has very important value in terms of ecological and economic functions. During its development, the ecosystem in Kayeli Bay bears the burden of pollution, especially heavy metal mercury as a result of the people's gold mining on Buru Island which uses Hg to get pure gold. Hg can accumulate in the environment, especially deposited in the sediments in Kayeli Bay waters. Mangrove plants that generally grow in estuary and coastal environments are a place for sediment accumulation. This plant has the ability to absorb and accumulate heavy metals, one of which is R. mucronata. This study aims to analyze the concentration of heavy metal Hg in mangroves of R. mucronata and sediments, and to analyze the bioaccumulation of heavy metal Hg in R. mucronata in Kayeli Bay, Buru Regency. Samples were taken from 3 stations, namely the Anahoni River Estuary (Station I), the Wailata River Estuary (II Station) and the Waeapo River Estuary (III Station). Each station has 2 sampling points (replicates). Determination of the concentration of Hg metal in the sample using the CV AAS method. The average value of Hg concentration in the roots was higher than the bark and leaves of the mangrove R. mucronata, but the concentration was lower than the sediment and was still below the critical value of Hg for plants. The average value of sediment Hg concentration is still below the sediment quality standard. In this study, R. mucronata mangroves were excluder and phytostabilized, where there was a limitation on the absorption of heavy metal Hg from water and sediment and the most Hg accumulation was found in the roots. Keywords: Bioaccumulation, Mercury, Rhizophora mucronata, Kayeli Bay
Co-Authors , Waliyul Maulana Siregar A. Tuhumurry, Harry Adrian Nugraha, Adrian Afriadi, Putra Akhmad Idris, Akhmad Alex Alex Ambarita, Dody Feliks Pandimun Andrias, Maria Yeti Angin, Laurensia Masri Parangin Annisa Nurlia Mamonto, Andi Anwar M Roem Apiek Gandamana Apriyanti, Sekar Arini, Wa Ode Lisa Aslati , Aslati Ayuni, Cindy Azhima, Ahmad Fauzan Azumardi, Andri Noor Banjar, Firman Bastian, Putri M A Berek, Yanuarius Tasik Charles Fransiscus Ambarita Dahlan, Rosmida R DEMMU KARO-KARO Elvi Mailani Elviana, Neneng EVA BETTY SIMANJUNTAK Fachmi Idris Fadila, Nurul Fahrur Rozi Faisal Faisal Fandizal, Muhammad Fauziah, Rezky Fesanrey, Wilda G, Andi Lely Nurmaya. Gani, Najamuddin Gawise, Gawise Gulo, Nurhayati Hamid Pelupessy, Iskandar Abd Handayani, Suci Sri Hatmi, Edizal Ibrahim Gultom Indri Seta Septadina Islamudin, Ayub Makrub Ismail, Irwan Ismar Hamid Jauhar, Ghufran Kabau, Widyawati Khairani, Carel Khairunnas Jamal Koto, Saifuddin Kurnia Katjong, Revie laili, yunial Laitupa, Jufri Pachri LALA JELITA ANANDA LAURENSIA MASRI PERANGINANGIN Lestari, Rizka Aulia Liberty, Iche Lubis, Joharis Lutur, Elen Marta M Zainul Arifin Mangesa, Rosita Mariana Mariana Massese, Mersi Mohammad Jamhari Moningka, Vincentius F D Mu'aziz, Farchan Muhammad Rifani, Muhammad Muhammad Zainul Arifin Muhsin Muhsin Munifah Munifah, Munifah Munir, Abd Mursito S. Bialangi Muslim Muslim Muslim, H. Mustakimah , Wafiq Mutiari, Yunial Laily Naeklan Simbolon Nasruddin Nasruddin Nasution, Marwah Sopiah Nasution, Nayla Rahmansyah Nasution, Yusra Nurlatu, Umiati Hasanah Nurlia Mamonto, Andi Annisa Nurliyantika, Rizka Nurmaya. G, Andi Lely NURMAYANI NURMAYANI Nurrahman, Muhammad Irfian pariyana, Pariyana Pasaribu, Zuani Jesica Perangin-angin, Laurensia M. Pratama, Muhammad Daffa Putra, Muhammad Rafi Rahman Upara, Abdul Rahmat Nur Ramadhan, Muhammad Syahri Riani, Nova RISMA SITOHANG Riwi, Fiselia Olivia ROBENHART TAMBA Rumakabis, Mega Utami Samosir, Dewi Haizah Samsia Umasugi, Samsia Sangur, Kristin Sani, Dhien Novita Saragih, Defica A. Sari, Liani Selamat Triono, Selamat SEMBIRING, MASTA MARSELINA Sergius Lay Setiawan, Malika Andini Sibagariang, Susy Alestriani Sihombing, Nurlia Silalahi, Elsi K. Simanihuruk , Lidia Simatupang, Asisi Febrina Sirait, Albert Pauli Siregar, Fatimah Zahra Siti Nuraisah, Siti Siti Zulaikha Sri Mustika Aulia Suarti, Suarti Subhan, Suhuf Sufinuran, Sufinuran Suwito Suwito Syamsurijal Syamsurijal, Syamsurijal T Teviana Tasya, Nurul Tuharea, Farida Tuhumury, Harry A. Ulfa, Haazimah Upara, Abdul Rahman Usman, Khairul Utama, Meria Uum Safari Widaty, Cucu Wildansyah lubis, Wildansyah Yeti Andrias, Maria Yuli Astuti Yunial Laili Mutiari Yusril Yusril Yusthinus T. Male ZAINUDDIN M Zainuddin, Zainuddin Zakariah, Muhammad Ikbal _, Kasmawati