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All Journal Jurnal Ilmiah Farmasi BERKALA SAINSTEK Naturalis : Jurnal Penelitian Pengelolaan Sumberdaya Alam dan Lingkungan Jurnal Riset Kimia Jurnal Kelautan Tropis BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks Indonesian Journal of Pure and Applied Chemistry Jurnal Laut Khatulistiwa IJPD (International Journal Of Public Devotion) Journal of Community Development Bakti Budaya: Jurnal Pengabdian kepada Masyarakat Literasi: Jurnal Pengabdian Masyarakat dan Inovasi Jurnal Sosial dan Sains Jurnal Indonesia Mengabdi (JIM) Oseanologia
Prayitno, Dwi Imam
Jurusan Ilmu Kelautan, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Tanjungpura
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Thermostability and Photostability of Shrimp Waste Oil Based on Sun Protection Factor Value, Erythema Transmission, Pigmentation Transmission and Free Fatty Acid Content Agustiawan, Deri; Rahmalia, Winda; Alimuddin, Andi Hairil; Prayitno, Dwi Imam; Sayekti, Endah
Jurnal Kelautan Tropis Vol 27, No 2 (2024): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v27i2.22775

Abstract

The high production of shrimp is accompanied by an increase in by-products (cephalothorax, carapace, and tail), which are discarded as waste. Therefore, a solution is needed to convert shrimp waste into economic value products like shrimp waste oil (SWO). SWO contains fatty acids and astaxanthin, which have antioxidant activity to scavenge free radicals, so it can prevent skin damage such as wrinkles and dryness. Due to its fatty acids and astaxanthin content, SWO can be applied as a sunscreen. However, heating and irradiation can degrade bioactive compounds that are beneficial for health. Thermostability and photostability tests are needed to determine the best storage conditions for SWO based on sun protector factor (SPF) values, erythema transmission (%Te), pigmentation transmission (%Tp), and free fatty acid (FFA) content. The yield of SWO obtained was 2.569% from 100 grams of dry shrimp waste weight. Analysis by using FTIR showed the presence of astaxanthin content in SWO, while GC-MS showed that the SWO contains up to 32.66% of hexanoic acid. SWO thermostability and photostability tests showed a decrease in SPF values and an increase in %Te and %Tp as heating and irradiation time increased. This is due to the photobleaching effect. There was no significant change in the FFA value, indicating that SWO is quite resistant to heating and irradiation.
Aktivitas Antioksidan Ekstrak Astaxanthin dari Limbah Kulit dan Kepala Udang Dogol (Metapenaeus ensis) Rahmalia, Winda; Adhitiyawarman, Adhitiyawarman; Prayitno, Dwi Imam; Lubis, Yosef Novem Batistuta
Jurnal Kelautan Tropis Vol 27, No 2 (2024): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v27i2.22706

Abstract

Astaxanthin is a carotenoid derivative compound with various benefits, one of which is as an antioxidant, making astaxanthin applicable in drugs and cosmetics. Astaxanthin is discoverable in various sources, with shrimp as its main source. This study aims to determine the antioxidant activity of astaxanthin extracted from shrimp shell and head wastes. Extraction was carried out using the soxhletation method, followed by saponification to obtain free astaxanthin. Astaxanthin in extract before and after saponification were identified using thin-layer chromatography (TLC) and UV-Vis spectrophotometry. Antioxidant activity assay was carried out in five variations of sample concentrations using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. Extraction of shrimp shell and head wastes resulted in an oil yield percentage of 1.02 and 3.05 % of dry mass in 60 g of shrimp shells, respectively. Identification results showed astaxanthin content in extracts after saponification were higher than that before saponification. There are three thin layer chromatography (TLC) separation spots and two UV-Vis absorption peaks in extracts before and after saponification. Antioxidant activity assay results (IC50) of shrimp shell extract before and after saponification showed antioxidant activity of 572.0 and 186.6 mg/L, respectively. Astaxanthin merupakan senyawa turunan karotenoid dengan beragam manfaat, salah satunya sebagai antioksidan, sehingga membuat astaxanthin dapat diaplikasikan dalam obat-obatan dan kosmetik. Astaxanthin dapat ditemukan dalam berbagai sumber, dengan sumber utama adalah udang. Penelitian ini bertujuan untuk menentukan aktivitas antioksidan astaxanthin yang diekstraksi dari limbah kulit dan kepala udang. Ekstraksi dilakukan dengan metode soxhletasi, dilanjutkan dengan saponifikasi untuk mendapatkan astaxanthin bebas. Hasil ekstraksi dan saponifikasi diidentifikasi astaxanthinnya menggunakan kromatografi lapis tipis (KLT) dan spektrofotometri UV-Vis. Uji aktivitas antioksidan dilakukan pada lima variasi konsentrasi sampel menggunakan metode 2,2-difenil-1-pikrilhidrazil (DPPH). Ekstraksi limbah kulit dan kepala udang menghasilkan rendemen masing-masing sebesar 3,05 dan 1,02% massa kering dari 60 g kulit udang. Hasil identifikasi menunjukkan kadar astaxanthin dari ekstrak setelah saponifikasi lebih tinggi daripada sebelum saponifikasi. Terdapat tiga spot pemisahan kromatografi lapis tipis (KLT) serta dua puncak serapan UV-Vis pada ekstrak sebelum dan setelah saponifikasi. Hasil uji aktivitas antioksidan (IC50) kulit udang sebelum dan setelah saponifikasi masing-masing adalah 572,000 dan 186,583 mg/L.
Edukasi dan Giat Literasi Kelautan untuk Meningkatkan Kesadaran Lingkungan di Kalangan Siswa SMA Kabupaten Mempawah Apriansyah; Mega Sari Juane Sofiana; Kushadiwijayanto, Arie Antasari; Nurrahman, Yusuf Arief; Safitri, Ikha; Warsidah; Idiawati, Nora; Sukal Minsas; Helena, Shifa; Nurdiansyah, Syarif Irwan; Prayitno, Dwi Imam; Nuraya, Tia; Harianto; Darma, Surya
Journal of Community Development Vol. 6 No. 1 (2025): August
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/comdev.v6i1.1622

Abstract

The research aims to enhance marine literacy and raise awareness among high school students in Mempawah Regency about vital role of mangrove ecosystems in maintaining coastal environmental balance. Limited student understanding has contributed to low participation in conservation efforts. A participatory educational approach was implemented through material presentation, interactive discussion, and marine equipment demonstrations. Questionnaire results indicated that over 90% of participants reported an increased understanding, with most expressing motivation to engage in mangrove conservation activities. These findings highlight the effectiveness of participatory methods in fostering marine literacy and environmental awareness. The program’s success is expected to serve as a sustainable model for environmental education in schools and can be expanded to promote ecological consciousness at the community level.
ISOLASI DAN KARAKTERISASI SENYAWA STEROID FRAKSI n-HEKSANA TERIPANG HITAM (Holothuria atra) ASAL PERAIRAN LEMUKUTAN KALIMANTAN BARAT Abrori, Sayyidus Dzaki; Sapar, Ajuk; Gusrizal, Gusrizal; Harlia, Harlia; Prayitno, Dwi Imam
Indonesian Journal of Pure and Applied Chemistry Vol 8, No 1 (2025)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v8i1.88526

Abstract

Black sea cucumber Holothuria atra is a marine organism from the family Holothuriidae, a source for developing raw pharmaceutical materials, and is abundant in the waters of Lemukutan Island. This study aims to identify steroid compounds from the n-hexane fraction of the black sea cucumber (H. atra) from Lemukutan waters using FTIR and ¹H-NMR instruments. The steps involved in this study include extraction (maceration and partition), phytochemical tests, fractionation (column chromatography), purification, and molecular structure identification. Phytochemical analysis of the n-hexane fraction of H. atra sea cucumber revealed the presence of secondary metabolites belonging to the groups of steroids, alkaloids, phenolics, terpenoids, and saponins. The result of the isolation was a relatively pure isolate with a weight of 0.0303 grams, yellowish white in color, and suspected to be a steroid compound. The results of the n-hexane fraction identification using FTIR showed the presence of several functional groups found in steroid compounds, such as aliphatic C-H bonds, olefinic =C-H bonds, C-O group, C=O group, C=C bond, and OH (hydroxyl) group. The results of the isolate identification using the ¹H-NMR instrument (500 MHz, CDCl₃) showed chemical shift similarities to the β-sitosterol compound from two different references.
Pemberdayaan Masyarakat dan Mahasiswa dalam Pembersihan Pantai Pulau Kabung Selatan Aritonang, Anthoni B; Helena, Shifa; Prayitno, Dwi Imam; Idiawati, Nora; Nurdiansyah, Sy. Irwan; Risko, Risko
Bakti Budaya: Jurnal Pengabdian kepada masyarakat Vol 4 No 2 (2021): 2021: Edisi 2
Publisher : Faculty of Cultural Sciences, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (918.807 KB) | DOI: 10.22146/bakti.1773

Abstract

Kabung Island, which is located in the Bengkayang Regency Government area, is one of 226 small islands in West Kalimantan. Busy visits to the island during the school holidays and weekends have resulted in a large distribution of garbage in the waters and coasts of the island, and if it is not addressed promptly, it can cause global water problems. The Lecturer Team of the Department of Marine Affairs at the University of Tanjungpura as the implementation team of PKM activities to clean the beaches of Kabung Island, together with all the islanders and students of the Department of Marine Affairs, dive in cleaning the beaches and waters close to residential areas, sorting and collecting garbage, then burning and stockpiling it so that it does not get worse. accumulate and more and more enter the water bodies and can reduce the quality of the waters on the island. As many as 25 students were directly involved in the activity, and 20 residents from the island were directly involved in beach cleaning activities. From this activity, which is centered on the island of South Kabung, 100 kg of garbage has been collected consisting of plastic materials in the form of used drink bottles, stereoforms, pampers, and some trash carried from the middle of the sea, which may be carried away from the mainland coast. This activity is very necessary and is expected to continue as an annual routine activity of the Department of Marine Affairs, as a participation in preserving the sea and maintaining good water quality so that the diversity of species and population of a marine biota is not affected by the presence of these wastes. ===== Pulau Kabung yang berada dalam wilayah Pemerintahan Kabupaten Bengkayang merupakan salah satu dari 226 pulau kecil yang berada di Kalimantan Barat. Kunjungan yang ramai ke pulau tersebut pada musim liburan sekolah dan weekend, menyebabkan banyaknya sebaran sampah yang terdapat di perairan dan pesisir pulau tersebut, dan jika tidak diatasi dengan segera dapat menimbulkan masalah perairan secara global. Tim Dosen Jurusan Kelautan Universitas Tanjungpura sebagai tim pelaksana kegiatan PKM pembersihan pantai pulau Kabung, bersama dengan segenap masyarakat pulau tersebut dan mahasiswa Jurusan Kelautan, terjun membersihkan pantai dan perairan yang dekat dengan permukiman penduduk, memilah dan mengumpulkan sampah, kemudian membakar dan menimbunnya agar tidak semakin menumpuk dan semakin banyak yang masuk dalam badan perairan dan dapat menurunkan kualitas perairan di pulau tesebut. Sebanyak 25 orang mahasiswa terjun langsung dalam kegiatan dan 20 warga masyarakat dari pulau tersebut terlibat langsung dalam kegiatan pembersihan pantai. Dari kegiatan tersebut, yang dipusatkan pulau Kabung Selatan, terkumpul sampah sebesar 100 kg yang terdiri atas bahan plastik berupa botol bekas minuman, styrofoam, popok, dan beberapa sampah bawaan dari tengah laut, yang mungkin terbawa arus dari pesisir daratan. Kegiatan ini sangat perlu dan diharapkan berlanjut sebagai kegiatan rutin tahunan dari Jurusan Kelautan, sebagai peran serta dalam melestarikan laut dan menjaga kualitas perairan tetap baik sehingga keanekaragaman jenis dan populasi suatu biota laut tidak terpengaruh oleh keberadaan sampah-sampah tersebut.
PRODUKTIVITAS PRIMER PERAIRAN TELUK CINA DI PULAU LEMUKUTAN, KALIMANTAN BARAT Rofi'ah, Khairunnisa; Nurrahman, Yusuf Arief; Prayitno, Dwi Imam
Jurnal Laut Khatulistiwa Vol 5, No 2 (2022): July
Publisher : Dept. Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/lkuntan.v5i2.54567

Abstract

Penelitian ini dilakukan dengan tujuan untuk mengetahui nilai produktivitas primer perairan Teluk Cina di Pulau Lemukutan dan parameter fisika-kimia perairan Teluk Cina di Pulau Lemukutan. Penelitian dilaksanakan pada bulan Maret 2022. Penentuan titik stasiun menggunakan metode Purposive Sampling. Pengukuran produktivitas primer, DO, suhu, intensitas cahaya, kecerahan, kecepatan arus, pH, dan salinitas dilakukan secara in situ pada stasiun pengambilan sampel. Pengamatan fitoplankton dilakukan secara ex situ di Laboratorium. Dilakukan pengukuran pada tanggal 15 Maret 2022 dan didapatlah nilai produktivitas primer perairan Teluk Cina berkisar antara 656,25 - 1125 mg C/m3/hari. Produktivitas perairan Teluk Cina tergolong kesuburan sedang (mesotrofik) hingga sangat subur (eutrofik). Kelimpahan fitoplankton perairan Teluk Cina berkisar antara 4082,4-4774,464 ind/L dan menandakan perairan mesotrofik atau kesuburan sedang. Nilai parameter fisika kimia di perairan Teluk Cina tergolong tinggi dan optimum bagi perairan tersebut.
Analisis Garam dari Daun Mangrove Rhizophora stylosa dan Rhizophora mucronata Enjella, Enjella; Prayitno, Dwi Imam; Minsas, Sukal
Jurnal Laut Khatulistiwa Vol 7, No 2 (2024): July
Publisher : Dept. Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/lkuntan.v7i2.70660

Abstract

Rhizophora sp. merupakan jenis mangrove yang akan menyimpan kelebihan garam dalam daun terutama pada daun yang tua selanjutnya untuk mengatasi kelebihan garam tersebut mangrove akan menggugurkan daun tuanya. Dalam penelitian ini dilakukan ekstraksi garam dari daun tua mangrove, metode yang digunakan dalam penelitian ini adalah eksperimen dengan 3 kali ulangan dan melalui 5 tahap, yaitu 1) pengambilan dan preparasi bahan baku, 2) pembuatan tepung daun mangrove, 3) ekstraksi dan pembuatan garam daun mangrove, 4) perhitungan rendemen serta 5) menganalisa kandungan mineral garam menggunakan alat WDXRF (Wavelength Dispersive X-ray Fluorescence). Analisis yang dilakukan pada penelitian ini adalah rendemen dan kandungan mineral. Hasil penelitian menunjukkan adanya perlakuan yang berbeda antara rasio tepung daun mangrove dan akuades sehingga berpengaruh terhadap rendemen. Adapun tujuan dari penelitian ini adalah untuk mengetahui hasil rendemen dan kandungan mineral yang diperoleh dari garam daun mangrove Rhizophora stylosa dan Rhizophora mucronata. Hasil yang diperoleh dari penelitian ini adalah daun R.stylosa yang sudah berumur tua memiliki kandungan mineral Mg (0,468%), Si (0,163%), P (0,0870%), S (0,358%), Cl (8,04%), K (0,903%), Ca (2,94%), Mn (0,163%), Fe (0,0060%), Br (0,0567), Sr (0,0311%) sedangkan pada daun R.mucronata memiliki kandungan mineral Mg (0,675%), Si (0,253%), P (0,119%), S (0,788%), Cl (6,66%), K (1,36%), Ca (1,51%), Mn (0,162%), Fe (0,0096%), Br (0,0491), Sr (0,0098%).
Perbandingan Pemberian Plester Luka Ekstrak Etanol 96% (Sargassum polycstum) dan (Padina australis) terhadap Lama Penyembuhan Luka Sayat pada Mencit (Mus musculus) Lia Sihotang, Nesya; Idiawati, Nora; Imam Prayitno, Dwi
Jurnal sosial dan sains Vol. 4 No. 6 (2024): Jurnal Sosial dan Sains
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsosains.v4i6.1362

Abstract

Latar Belakang: Sargassum dan Padina mengandung senyawa bioaktif yang potensial untuk dikembangkan dalam industri farmasi. Ekstrak etanol Sargassum dan Padina mengandung metabolit sekunder yang memiliki efek sebagai antiseptik, antibiotik, antioksidan, antiinflamasi, antibakteri, antivirus dan astringent yang berguna dalam proses penyembuhan luka. Tujuan: Penelitian ini bertujuan untuk membandingkan efektivitas plester luka ekstrak etanol Sargassum polycystum dan Padina australis  terhadap waktu penutupan luka sayat pada mencit (Mus musculus) Metode: Penelitian ini merupakan penelitian eksperimen jenis post-test only controlled group design untuk membandingkan efektivitas plester luka ekstrak etanol Sargassum polycstum dan Padina australis pada lama penyembuhan luka sayat pada mencit (Mus musculus). Hasil: Hasil penelitian menunjukkan rata-rata kecepatan penyembuhan luka sayat, plester luka ekstrak Padina australis memiliki waktu tercepat yaitu 6,6 hari diikuti dengan plester luka ekstrak Sargassum polycstum 7,8 hari dan kontrol 12 hari. Kesimpulan: Pemberian ekstrak etanol Sargassum polycstum dan Padina australis dapat dijadikan sebagai salah satu alternatif pada penyembuhan luka.
INVENTARISASI AIR SUMUR SEBAGAI SUMBER AIR BERSIH DI DESA SUNGAI NIBUNG, KABUPATEN KUBU RAYA Sofiana, Mega Sari Juane; Warsidah, Warsidah; Kushadiwijayanto, Arie Antasari; Apriansyah, Apriansyah; Safitri, Ikha; Rudiyanto, Rudiyanto; Nurrahman, Yusuf Arief; Minsas, Sukal; Idiawati, Nora; Helena, Shifa; Nurdiansyah, Sy. Irwan; Prayitno, Dwi Imam; Harianto, Harianto; Darma, Surya
Jurnal Indonesia Mengabdi Vol. 4 No. 3 (2025): Jurnal Indonesia Mengabdi (JIM)
Publisher : Tahta Media Grup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55080/jim.v4i3.1623

Abstract

A common problem faced by coastal communities is the lack of clean water. This issue also occurs in the coastal area of Sungai Nibung Village, Teluk Pakedai District, Kubu Raya Regency. The community relies on dug well water; however, this water is yellowish, murky, and has an iron odor. This activity, in Community Service (PKM), aims to collect data on the condition of water and existing clean water fasilities and infrastructure, and offer treatment solutions that consider the current situation. The method was carried out through field surveys, raw water sampling, simple water testing (pH, salinity, and coagulation-flocculation tests), and observation of clean water supporting facilities. High levels of in the water can be reduced through coagulation-flocculation using soda ash and PAC to precipitate the iron. If the sedimentation stage is skipped, the workload of the filters in te available facilities becomes heavier. One applicable solution for the community is to add aeration and sedimentation tanks to oxidize and precipitate the iron.
Co-Authors . Apriansyah A. Kushadiwijayanto, Arie A.Nurrahman, Yusuf Abdurahman, Uray Muchlis Abrori, Sayyidus Dzaki Adhitiyawarman, Adhitiyawarman Agustiawan, Deri Ajuk Sapar Andi Hairil Alimuddin Anisya Anisya Apriansyah Arie Antasarie Kushadiwijayanto Arie K Kushadiwijayanto Aritonang, Anthoni Batahan BAMBANG SUJATMIKO Endah Sayekti Enjella, Enjella Fuadah, Aisah Samrotul Gusrizal Gusrizal Harianto Harianto Harianto Harlia, Harlia Helena, Shifa Idawati, Nora Ikha Safitri Irwan Nurdiansyah, Sy. Junaidi, Levy Kalija, Tedi Ahmad Kushadiwijayanto, Arie Antasari Lia Sihotang, Nesya Lubis, Yosef Novem Batistuta Mauludia Mauludia Mega Sari Juane Sofiana Minsas, Sukal Muhammad Fajri Muhardi Muhardi Muliadi Muliadi Muliadi Nesya Lia Sihotang Nona Shalgie One Nora Idiawati Nora Idiawati Nora Idiawati Nora Idiawati Nurdiansyah, Sy. Irwan Nurdiansyah, Syarif Irwan Permana, Gusti Irsan Risko, Risko Rofi'ah, Khairunnisa Rudiyanto Rudiyanto, Rudiyanto S.J Sofiana, Mega Samira Samira Selviana, Alya Septiani Siti Nani Nurbaeti Sukal Minsas Sukal Minsas Sukal Minsas Supriwanti, Supriwanti Surya Darma Sy Irwan Nurdiansyah Sy. Irwan Nurdiansyah Thamrin Usman Tia Nuraya Warsidah Warsidah Warsidah, Warsidah Wenti Yuliana Winda Rahmalia Winda Rahmalia Yusuf Arief Nurrahman Yusuf Nurrahman `B Aritonang, Anthoni