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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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Journal : Science and Technology Indonesia

 1 
The Utilization of Modified Chitosan from Shrimp Shell As Photodegradation of Pesticides Paraquat Dichloride Risfidian Mohadi; Neza Rahayu Palapa; Rudi Hartono; Nurlisa Hidayati; Rozirwan
Science and Technology Indonesia Vol. 6 No. 3 (2021): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1287.395 KB) | DOI: 10.26554/sti.2021.6.3.204-208

Abstract

In this study, the chitosan modification of shrimp shell has been made by impregnated the chitosan from shrimp shell with Ti/ZrO2 and ZrO2 to formed composite of chitosan-Ti/ZrO2 and chitosan-ZrO2. These composites were made by immobilization technique and characterized by FTIR and SEM-EDX. The chitosan-Ti/ZrO2 and chitosan-ZrO2 composite were used as a catalyst to degrade the pesticide paraquat dichloride in the presence of UV light (????= 257 nm). The photodegradation process of paraquat dichloride takes place under 10 watts UV light irradiation and was measured using spectrophotometer UV. The maximum degradation percentage of pesticide paraquat dichloride photodegradation by chitosan-Ti/ZrO2 and chitosan-ZrO2 composites are 61.97% and 57.97% within 30 minutes irradiation time.
An Assessment of Pb and Cu in Waters, Sediments, and Mud Crabs (Scylla serrata) from Mangrove Ecosystem Near Tanjung Api-Api Port Area, South Sumatra, Indonesia Rozirwan; Aning Puji Saputri; Redho Yoga Nugroho; Nadila Nur Khotimah; Wike Ayu Eka Putri; Fauziyah; Anna Ida Sunaryo Purwiyanto
Science and Technology Indonesia Vol. 8 No. 4 (2023): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2023.8.4.675-683

Abstract

Heavy metal pollution from anthropogenic activities can harm aquatic ecosystems. This study aims to determine the concentration of heavy metals (Pb and Cu) in waters, sediments, and mud crabs (Scylla serrata), and to analyze the relationship between environmental parameters and S. serrata consumed by humans. Samples were taken in the mangrove ecosystem around the Tanjung Api-Api port area in South Sumatra, Indonesia. Pb and Cu analysis used the Atomic Absorption Spectrophotometer (AAS). Pb and Cu linkages in waters, sediments, and S. serrata analyzed by SigmaPlot V12.5 and Principal Component Analysis (PCA) analyzed by XLSTAT 2022. The limit consumption of S. serrata was calculated using MWI (Maximum Weekly Intake) and MIT (Maximum Intake Tolerance). Based on the results, the heavy metal Pb in water was 0.1055 – 0.1322 mg.L-1, and Cu was not detected. Furthermore, Pb in sediments ranged from 7.0104 - 11.8186 mg.kg-1, Cu 3.7127 - 4.5347 mg.kg-1, and Pb in S. serrata ranged from 0.0001 - 0.0021 mg.kg-1, and Cu ranged from 0.03 – 0.0791 mg.kg-1. The concentration of heavy metals in water, sediment, and S. serrata had not exceeded the specified quality standard, except for Pb in water. The principal component analysis obtained F1 (44.35%), F2 (27.53%) and F3 (17.83%) groups. Based on MWI and MIT value, it showed high quality which concluded S. serrata was still safe for human consumption.
Anti-Inflammatory Activity and Phytochemical Profile from the Leaves of the Mangrove Sonneratia caseolaris (L.) Engl. for Future Drug Discovery Rozirwan; Ade Siswanto; Nadila Nur Khotimah; Redho Yoga Nugroho; Wike Ayu Eka Putri; Fauziyah; Rezi Apri; Hartoni
Science and Technology Indonesia Vol. 9 No. 2 (2024): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.2.502-516

Abstract

The increasing demand for effective and natural anti-inflammatory agents prompts an investigation into the properties of Sonneratia caseolaris (L.) Engl., a plant traditionally used in medicine. This study aimed to explore the ability of S. caseolaris leaves extract to inhibit inflammation and accelerate wound healing. S. caseolaris leaves were collected from Tanjung Api-Api area, Banyuasin, South Sumatra. The method involved carrageenan induction in rat paws as an inflammatory model. The results showed that the most effective dose was found in the group with a dose of 150 mg/kg BW measured using a digital caliper and plethysmometer. The qualitative phytochemical test contain alkaloids, steroids, flavonoids, and phenols. The results GC-MS analysis were thought to contain aldehydes, glucosinolates, coumarins, esters, terpenoids, alcohols, lipids, tocopherols, and steroids. Due to their diverse range of mechanisms of action, coumarins show significant promise in mitigating inflammation and hold potential for treating inflammatory conditions. This study provides new insights related to the potential of S. caseolaris as a source of natural anti-inflammatory agents, supporting public comprehension regarding the utilization of traditional herbal remedies.
Copper and Lead Contamination in Sediment and Benthic Ecosystems of Sembilang National Park’s Coastal Region, South Sumatra Rozirwan; Ananta, Dio Alif; Khotimah, Nadila Nur; Putri, Wike Ayu Eka; Fauziyah; Dianysah, Gusti; Siregar, Yusni Ikhwan; Ramses; Isnaini; Melki; Aryawati, Riris; Agustriani, Fitri; Nugroho, Redho Yoga
Science and Technology Indonesia Vol. 10 No. 3 (2025): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.3.866-876

Abstract

Littoral zone often face environmental pressure due to anthropogenic activities, which can impact the quality of their ecosystem. This study analyzes the concentrations of copper (Cu) and lead (Pb) in sediments and benthic (Anadara granosa and Cerithidea cingulata). Sampling procedures were implemented during September 2022 across the aquatic habitats of Sembilang National Park, in South Sumatra Province, using the purposive sampling method. Sediment grain size and substrate type were analyzed using Shepard’s triangle. Metal detection using a spectrophotometric method based on atomic absorption. The results showed that the sediment fraction mostly consisted of clay, ranging from 92.03% to 94%. Cu concentrations in the sediment ranged from 5.01±0.017 to 5.71±0 mg/kg, while Pb concentrations ranged from 10.5±0.195 to 11.51±0.395 mg/kg. In the benthic, Cu concentrations ranged from 0.0037±0.00005773 to 0.0147±0.00000346 mg/kg, and Pb concentrations ranged from 0.0001±0.000227 to 0.005±0 mg/kg. According to the statistical evaluation testing via independent sample t-test showed that heavy metals differed significantly (p <0.05) between sediment and benthic compartments. These results show that the environmental quality in Sembilang National Park is still comparatively well maintained and within current quality requirements, despite certain activities that have the potential to pollute the environment. To guarantee the long-term viability of this area, it is advised that environmental quality be frequently monitored as a mitigation action.
Co-Authors . Chaidir ., Renaldi Ade Siswanto Adi Purwandana Alfiansyah, Yustian Rovi 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 Nurwijayanti 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