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TEKNOLOGI PENANGKAPAN KARBON DENGAN MIKROALGA: PELUANG DAN TANTANGAN DALAM MITIGASI PERUBAHAN IKLIM Prayitno, Joko; admirasari, Rahmania; Sudinda, Teddy; Winanti, Widiatmini
Jurnal Rekayasa Lingkungan Vol. 14 No. 2 (2021): JURNAL REKAYASA LINGKUNGAN
Publisher : BPPT

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Abstract

Teknologi penangkapan karbon dengan mikroalga (CCS Mikroalga) merupakan salah satu teknologi mitigasi yang memiliki potensi digunakan dalam upaya penurunan emisi GRK. Teknologi CCS mikroalga bekerja dengan cara menangkap karbon yang dihasilkan dari suatu proses industri kemudian disimpan dan dimanfaatkan untuk proses produksi lain.Teknologi CCS mikroalga terdiri dari dua jenis yaitu fotobioreaktor dan kolam terbuka (open pond). Tulisan ini membahas sejauh mana kontribusi teknologi CCS menggunakan mikroalga dalam upaya penurunan emisi karbon, prospek aplikasinya di masa depan dan kendala dalam aplikasinya. Dalam tulisan ini dijelaskan tentang konsep dan jenis-jenis teknologi CCS menggunakan mikroalga, potensi serapan karbon dari masing-masing teknologi, dan kendala dalam aplikasinya, dan beberapa alternatif untuk meningkatkan peran teknologi ini pada tataran nasional. kata kunci : penangkapan karbon, mikroalga, fotobioreaktor, kolam kultur, serapan CO2.
KAJIAN LINGKUNGAN PENGEMBANGAN PRODUKSI GARAM INDUSTRI DI INDONESIA Dewanti, Dian Purwitasari; Arifudin; Adhi, Rizky Pratama; Saraswati, adinda Arimbi; Sumbogo, Sri Djangkung; Prayitno, Joko; Susanto, Arif Dwi
Jurnal Rekayasa Lingkungan Vol. 14 No. 2 (2021): JURNAL REKAYASA LINGKUNGAN
Publisher : BPPT

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Abstract

Garam industri sangat dibutuhkan sebagai bahan baku di indutri farmasi, kimia, tekstil, makanan, danla in-lain. Berdasarkan data tahun 2019, Indonesia masih mengimpor garam industri sebesar 2 juta ton per tahun. Sentra produksi garam di Indonesia yang sebagian besar merupakan garam rakyat dengan kadar NaCl di bawah standar kebutuhan industri. Oleh karenanya, diperlukan sebuah pengembangan produksi garam industri dari garam rakyat dengan kualitas akhir yang memenuhi standar kebutuhan industri. Terdapat berbagai teknologi untuk mendapatkan garam industri dari garam rakyat diantaranya adalah dengan pemurnian menggunakan air tua yaitu larutan garam murni jenuh yang akan mengikat pengotor dalam kristal garam sehingga akan didapatkan garam dengan kemurnian tinggi yang memenuhi Standar Nasional Indonesia (SNI). Dalam pelaksanaannya, proses produksi garam industri tersebut akan berpotensi menyebabkan perubahan suatu lingkungan di sekitarnya sehingga perlu dilakukan sebuah studi untuk menganalisis dampak lingkungan yang mungkin ditimbulkan dari proses produksi tersebut. Paper ini akan menjelaskan hal-hal yang berpotensi menimbulkan dampak terhadap lingkungan dari sebuah proses pemurnian garam rakyat menjadi garam industri. Analisis mencakup potensi dampak lingkungan yang ditimbulkan oleh limbah dan produk samping yang berupa padatan, cairan, dan gas.
Effects of Nitrate and Salinity on Fatty Acid Composition of Marine Tetraselmis sp.: Potential as Biodiesel Noriko, Nita; Prayitno, Joko; Anggraini, Bunga
Makara Journal of Science Vol. 19, No. 1
Publisher : UI Scholars Hub

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Abstract

Identifying sources of renewable energy is extremely important. The potential of Tetraselmis sp. in biodiesel production was investigated using a completely randomized design with four treatments. Tetraselmis sp. was cultured on media containing different concentrations of nitrate there are 2 mM and 15 Mm and s 25 ‰ and 35 ‰ salinity. The treatments namely are (N2S25), (N2S35), N15S25) and (N15S35). Analysis of the fatty acid content using gas chromatography-mass spectrometry (GC-MS). The results showed that the highest growth occurred in culture that contained 15 mM of nitrate and 35 ‰ salinity. The lowest growth occurred in culture containing 2 mM of nitrate and 25‰ of salinity. The highest lipid content was found in cultures containing 2 mM of nitrate and 25‰ salinity, it is 34.83%. Seven fatty acids were detected in culture containing 2 mM of nitrate and 25‰ salinity namely myristic acid (4.02%), palmitic acid (40.59%), palmitoleic acid (29.06%), stearic acid (0.95%), oleic acid (12.52%), gamma-linolenic acid (2.56%), and arachidonic acid (9.38%). Four fatty acids palmitoleic acid (8.99%), palmitic acid (37.34%), oleic acid(44.89%), and stearic acid (8.78%) were detected in 2 mM of nitrate with 35‰ salinity. The fatty acids have potential to be used as raw material for biodiesel production.
Komunikasi Sosial Dalam Menjaga Kerukunan Umat Beragama di Kelurahan Cakranegara Selatan Baru Wanesari, Sayu Ketut; Prayitno, Joko; Widaswara, Rieka Yulita
Samvada : Jurnal Riset Komunikasi, Media, dan Public Relation Vol 2 No 2 (2023): Samvada November 2023
Publisher : IAHN Gde Pudja Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53977/jsv.v2i2.1315

Abstract

Community and religious leaders have a role in maintaining religious harmony in the midst of irregularities that occurred in several neighborhoods in Cakranegara Selatan Baru Village. The aim of the study was to find out the Forms of Communication, Communication Processes and the Impact of Communication of Community Leaders and Religious Leaders in maintaining religious harmony in Cakranegara Selatan Baru Village. The theory used in this research is Laswell's communication theory. The research methodology uses descriptive qualitative methods, with data collection techniques of observation, interviews, and documentation. The results of this study consist of three important points, namely as follows: Forms of communication of community and religious leaders in the North and South Abian Tubuh Sub-District of Cakranegara Selatan Baru, namely interpersonal and group communication. Interpersonal communication is carried out to solve problems faced by the community in the form of disputes, drug arrest cases, fights, so that troubled people get solutions to the problems they face. Both group communication is carried out in coaching and directing activities to the community to be able to tolerate and respect each other to create harmony. The communication process of community and religious leaders consists of five important elements based on the assumptions of Lasswell's communication theory, namely the existence of a communicator consisting of the Head of the neighborhood, Head of RT, Stakeholder and Ustaz. Messages that contain guidance and solutions to the community. Media used orally and in writing. The communicant is the community as the recipient of the guided message. Then the feedback or effect is expected to change people's attitudes and behavior. The impact of the communication of community and religious leaders is the creation of harmonious relationships and an attitude of tolerance that is applied in social life so that harmony can be achieved.
KOMUNIKASI PARIWISATA DI KAWASAN PURA SURANADI DALAM MENDUKUNG SURANADI SEBAGAI DESA WISATA BUDAYA Prayitno, Joko; Mahyuni, Mahyuni
Samvada : Jurnal Riset Komunikasi, Media, dan Public Relation Vol 3 No 1 (2024): Samvada Mei 2024
Publisher : IAHN Gde Pudja Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53977/jsv.v3i1.1800

Abstract

West Lombok Regency has designated Suranadi as a cultural tourism village. One of the tourist attractions in Suranadi village is Suranadi temple. The arrival of tourists to this place causes social interaction between tourism components so that tourism communication occurs. From the researcher's observations, tourist visits not only carry out rituals but tourists also enjoy traditional culinary delights with objectives, reasons and basic argumentative factors. Relics of tradition and culture are still preserved today, including: Pujawali ceremony, ngelungsur tirtha tradition, and sacred bathing tradition. Tourism communication occurs in the form of communication: intrapersonal, interpersonal, group and mass. The impacts of tourism communication include: introducing Suranadi cultural; growing tourist interest in coming to Suranadi Village; guarantee the development of sustainable tourism, as well as the preservation of traditions and culture of Suranadi village. Based on observations, literature studies, and interviews with a number of residents, traders, and temple managers, the findings confirm that tourism communication can support the development of Suranadi as a cultural tourism village.
ANALISIS FITOKIMIA, AKTIVITAS ANTIOKSIDAN DAN ANTIBAKTERI DAUN ANDONG (Cordyline fruticosa) Andani, Lowisesi; Sari, Nur Maulida; Salusu, Heriad Daud; Yusdiansyah; Wartomo; Prayitno, Joko; Aryani, Farida
PERENNIAL Vol 18 No 2 (2022): Vol. 18 No. 2, Oktober 2022
Publisher : Forestry Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v18i2.22466

Abstract

The Andong Merah plant (Cordyline fruticosa) is known to have natural antibacterial properties, which can inhibit the growth of cancer and tumors. Several studies that have been carried out previously showed the potential of red Andong Merah plant extracts for health, especially in the Andong Merah leaves with many active compounds. This study explored the potential of Andong Merah leaves for their phytochemical analysis, antioxidant and antibacterial activity. Andong Merah leaves were macerated using n-hexane, ethyl acetate, and ethanol solvent to yield the crude extracts. The phytochemical analysis was evaluated by the Harborne and Kokate method. Antioxidant activity was evaluated by DPPH radical scavenging assay. Antibacterial activity was examined using the agar well diffusion method against Propionibacterium acnes, Streptococcus mutans, and Streptococcus sobrinus. The results showed that the Andong Merah leaves extract contains alkaloids, flavonoids, tannins, steroids, and saponins. The antioxidant activity test showed that the n-hexane and ethyl acetate of Andong Merah leaves extracts displayed the ability to inhibit DPPH free radical by 74% and 75% at 200 ppm concentration, while ethanol extracts by 79% at 100 ppm concentration. The antibacterial activity showed that the ethanol extract of Andong Merah leaves displayed the ability to inhibit the Propionibacterium acnes growth with 12 mm inhibition activity at 400 µg. The ethanol and ethyl acetate of Andong Merah leaves extract can inhibit the Streptococcus mutans growth with 9 mm at 400 µg. Antibacterial activity of n-hexane, ethyl acetate, and ethanol extract of Andong Merah leaves display the ability to inhibit the Streptococcus sobrinus growth with 10 mm at 400 µg concentration. Based on the results, Andong Merah leaves (Cordyline fruticosa) display potential as a natural antioxidant and antibacterial agent.
Phytochemical and Antioxidant Activity of Blumea balsamifera and Cordyline fruticosa Based on Ethnopharmacology Knowledge of Muara Tae Tribe, East Kalimantan Sari, Nur Maulida; Aryani, Farida; Wartomo, Wartomo; Hernandi, Muhammad Fikri; Rositah, Erna; Prayitno, Joko
Biology, Medicine, & Natural Product Chemistry Vol 12, No 1 (2023)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2023.121.273-280

Abstract

Plant use as traditional medicine is still widely practiced in Indonesia. Muara Tae tribe people, West Kutai regency are one of the regions that still rely on Blumea balsamifera and Cordyline fruticosa plants as traditional medicine. This study aims to determine the potential of Blumea balsamifera and Cordyline fruticosa leaves as medicinal plants with phytochemicals and antioxidants. Phytochemical analysis was tested using Harborne and Kokate methods. Antioxidant activity was evaluated by DPPH radical scavenging assay with slight modification. The results of the phytochemical analysis showed that the extracts of n-hexane, ethyl acetate, and ethanol from the leaves of Blumea balsamifera and Cordyline fruticosa contained alkaloids, tannins, and triterpenoids. Antioxidant activity of Blumea balsamifera leaves extract showed that the n-hexane extract display an ability to inhibit DPPH free radical by 50% at 100 ppm concentration, while ethyl acetate and ethanol extracts display an ability by 77% and 81% at 50 ppm concentration. IC50 value of ethyl acetate and ethanol extracts of Blumea balsamifera leaves sequentially were 23.68 µg/mL and 17.59 µg/mL. Antioxidant activity of Cordyline fruticosa leaves extract showed that the n-hexane and ethyl acetate extract display an ability to inhibit DPPH free radical by 45% and 56% at 100 ppm concentration, while ethanol extracts display an ability by 76% at 50 ppm concentration. IC50 value of ethyl acetate and ethanol extracts of Cordyline fruticosa leaves sequentially were 73.72 µg/mL and 20.17 µg/mL. Based on the results, Blumea balsamifera and Cordyline fruticosa leaves extracts had the potential to develop as natural antioxidants.
The Existence of Batu Bolong Temple in Supporting West Batu Layar as A Marine Tourism Village On Lombok Island, Indonesia Prayitno, Joko
Jurnal Penelitian Agama Hindu Vol 8 No 4 (2024)
Publisher : Jayapangus Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37329/jpah.v8i4.3472

Abstract

Batu Bolong Temple is a Hindu tourist destination in Batulayar Barat Village, Lombok, Indonesia. Batu Bolong Temple is located in a fairly well-known coastal tourist area on Lombok Island, namely the Senggigi Beach area. The dynamics of the development of Batu Bolong Temple gradually influenced and developed following the conditions of tourism development on Lombok Island. This study aims to examine the existence of Batu Bolong Temple in supporting Batu Layar Barat as a marine tourism village on Lombok Island. This study uses a qualitative method, with interview techniques with several people, tourists, traders, and temple managers, as well as conducting direct observations at the location and literature studies. The study results show that this temple is not only used by Hindus but is also visited by tourists with basic purposes, reasons, and argument factors. The tourist attraction of Batu Bolong Temple is in the form of interesting tourist objects and attractions for tourists to enjoy. The temple manager carries out good management in maintaining the existence of Batu Bolong Temple. Batu Bolong Temple is relevant in supporting Batulayar Barat as a marine tourism village in terms of location, promotion, price, supporting facilities, transportation facilities, infrastructure, and management. Based on the results of the analysis and discussion of the findings, it is confirmed that the existence of Batu Bolong Temple can support the development of Batu Layar as a marine tourism village.
Penguatan Ekonomi Lokal melalui Produk Inovatif Perikanan: Abon Ikan dan Nugget Ikan Guspiandra, Nori; Agustavira, Delvia; Nofirsa, Corry; Tuswanto, Amri Romadon; Zabel, Ryolando; Prayitno, Joko; Sitepu, Clarisa Natalie Br; Sidauruk, Santhy Wisuda
Jurnal Pengabdian Nasional (JPN) Indonesia Vol. 6 No. 1 (2025): Januari
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) STMIK Indonesia Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jpni.v6i1.1093

Abstract

PKK empowerment program in Pambang Pesisir Village through training in the production of fish floss and nuggets. Using an interactive approach, 15 PKK women participated in a 3-hour hands-on demonstration. Activities included visual counseling (30 minutes), a Q&A session (15 minutes), a product-making demonstration (90 minutes), and independent practice (45 minutes). The results showed a significant increase in participants’ understanding and skills, measured through pre- and post-training questionnaires. The participant satisfaction rate reached 95%, with 80% of them interested in developing businesses based on the products learned. The program successfully introduced high-value fish processing alternatives, opening opportunities for income diversification in coastal communities.The training increased participants' awareness of the potential of local marine resources. Further analysis showed a 40% improvement in participants' knowledge of the nutritional value of processed fish products. Additionally, 70% of participants reported increased confidence in their entrepreneurial abilities. The program also strengthened collaboration among PKK members, with 60% expressing interest in forming joint business groups. The potential economic impact is estimated to increase household income by up to 25% in the medium term. Recommendations for program sustainability include establishing production cooperatives, advanced training in small business management, and developing local marketing networks. The study concludes that empowerment programs based on practical skills can serve as effective catalysts for the economic development of coastal communities.
Peningkatan Kesadaran Hukum Masyarakat dalam Mendukung Kesehatan Publik melalui Edukasi Hak atas Pelayanan Kesehatan dan Pencegahan Penyakit Menular di Kartasura Kuncoro, Aditya Bagus; Prayitno, Joko
Social Engagement: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 3 (2025): Juni 2025
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Internasional Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37253/se.v3i3.10485

Abstract

Kegiatan Pengabdian kepada Masyarakat ini bertujuan untuk meningkatkan literasi hukum dan kesehatan masyarakat di wilayah Kartasura, terutama dalam menghadapi tantangan ketimpangan akses dan rendahnya kesadaran terhadap hak-hak kesehatan. Melalui kolaborasi antara Universitas Duta Bangsa Surakarta dan Universitas Veteran Bangun Nusantara, program ini melibatkan penyuluhan hukum dan sosialisasi kesehatan kepada warga dengan pendekatan partisipatif dan edukatif. Sebanyak 50 peserta hadir dan berinteraksi langsung dengan dua narasumber ahli. Hasil kegiatan menunjukkan bahwa 70% peserta mengalami peningkatan pemahaman mengenai prosedur hukum dan hak kesehatan dasar, serta mulai tergerak untuk membentuk forum advokasi lokal. Perubahan sosial positif ini ditandai dengan munculnya inisiatif pelaporan pelanggaran hak kesehatan secara mandiri dan tumbuhnya kesadaran hukum kolektif. Temuan ini menunjukkan pentingnya integrasi antara aspek hukum dan kesehatan dalam pemberdayaan masyarakat. Diperlukan tindak lanjut berupa pendampingan reguler dan perluasan program ke wilayah lain untuk menciptakan keberlanjutan.