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All Journal Jurnal SOLMA Indonesian Journal of Advocacy and Legal Services The Indonesian Journal of International Clinical Legal Education Semarang State University Undergraduate Law and Society Review Gemakes: Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Teknik Kimia dan Lingkungan Indonesian Journal of Advocacy and Legal Services Jurnal Cakrawala Akademika Journal of Green Science and Technology Preventia : The Indonesian Journal of Public Health
Ramadhani, Fauziah
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Telaah Determinan Kejadian Hipertensi di Desa Sukamakmur Kecamatan Binjai Kabupaten Langkat Hasibuan, Rapotan; Ramadhani, Fauziah; Nanda, Ajeng Husni; Dalimunthe, Dirayati Annisa; Nasution, Latifah Azmy; Syahfira, Ayunda; Safitri, Sintia; Ariska, Ayu; Adeliyani, Mega
Preventia: The Indonesian Journal of Public Health Vol. 5, No. 2
Publisher : citeus

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Arterial hypertension is highly prevalent in the elderly, adult andadolescent population. The results from a doctor's diagnosis in a population over 18 years of age in Indonesia found a hypertension prevalence rate of 8.4%. Sukamakmur is one of the villages in Binjai District, Langkat Regency, which has 59 people suffering from hypertension in 2019 and is one of the 3 biggest diseases in there. This study, therefore, aimed to determine the determinants of hypertension in Sukamakmur Village. This research was a quantitative analytic study with a cross sectional design with70 samples of 70 householders taken by purposive sampling. Univariate and bivariate (chi-square) statistical analyzes were performed by means of computerization. The findings of the study showed that the incidence of hypertension was 10%. However, there was no significant relationship between smoking habits (p=0.704, 95% CI=0.245-8.009), and age category (p=0.107, 95% CI=0.582-45.001) in the incidence of hypertension. People who experienced an increase in blood pressure were as many as 7 people (10%) and those who experienced an increase in blood sugar were as many as 3 people (4.3%). The results of this study were in accordance with village data which states that hypertension is higher than diabetes.
Optimization of Agitation Speed and Aeration Rate for Fungal Protein Production from Tofu Whey Using Aspergillus oryzae in a Stirred Tank Bioreactor Keryanti, Keryanti; Manfaati, Rintis; Fauzan, Rizky; Ramadhani, Fauziah; Krista, Gustin Mustika; Ferawati, Yohana Fransiska; Santoso, Budi
Jurnal Teknik Kimia dan Lingkungan Vol. 10 No. 1 (2026): April 2026
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v10i1.7813

Abstract

Fungal protein, derived from microbial biomass, offers a sustainable protein source and can be produced through fermentation. However, the utilization of tofu whey, an abundant agro-industrial by-product in Indonesia, as a substrate for fungal protein remains underexplored. This study optimizing both agitation speed and aeration rate for Aspergillus oryzae fermentation in a stirred-tank bioreactor. Fermentation was conducted in a 5 L stirred-tank bioreactor with a 3 L working volume for 48 hours at an initial pH of 5 and a temperature of 35℃. Agitation speeds of 150, 200, 250, and 300 rpm were tested at a constant aeration rate of 1.0 vvm to determine the optimum mixing condition. The agitation speed that yielded the highest dry cell weight was then used as the basis for further aeration experiments (0, 0.5, 1.0, and 1.5 vvm). The optimum conditions were obtained at 150 rpm and 1.0 vvm, resulting in a dry cell weight of 7.1 g/L and a protein content of 6.83% (w/w). These findings demonstrate the potential of valorizing tofu whey into fungal protein while highlighting the need for further multi-parameter optimization to enhance protein levels toward single-cell protein standards.
Natural Based Carbon Briquettes: The Effect of Coffee Ground Carbonization Temperatures as Renewable Energy Alternative Ramadhani, Fauziah; Sa’diyyah, Ghina Nabila Nur; Putri, Salsabila Azaliyah; Anggraeni, Danisa Dwi; Adhitasari, Alfiana; Saripudin, Saripudin
Journal of Green Science and Technology Vol 9 No 3 (2025): Journal of Green Science and Technology Vol. 9 No. 3 December 2025 Special Editio
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i3.10677

Abstract

Coffee consumption in Indonesia has been increasing over time. As a result of the high consumption and production, coffee waste often ends up in landfills. One potential solution to this problem is converting coffee waste into reusable products. Coffee grounds waste can be utilized as renewable energy in the form of briquettes. In this research, coffee grounds are used as briquette material. Briquettes are made by the carbonization method. Temperature plays a crucial role in determining the quality of briquette. This study aims to identify the optimum carbonization temperature, with variations of 350°C, 400°C, and 450°C. Each briquette sample was analyzed according to the Indonesian National Standard SNI 01-6235-2000. The results show that all carbonization temperatures produced briquettes with high calorific values (>5000 cal/g), that is 6981 cal/g at 350°C, 7037 cal/g at 400°C, and 7043 cal/g at 450°C. However, the resulting briquettes did not meet the standard criteria for density, fixed carbon, and volatile matter.
Co-Authors Adeliyani, Mega Adri, Khaeriyah Alfiana Adhitasari Anak Agung Gede Sugianthara Anggraeni, Danisa Dwi Aprila Niravita, Aprila Ariska, Ayu Asmila, Asmila Azzahra, Azzahra Dalimunthe, Dirayati Annisa Darwin Darwin Dika, Dika Dwi Budi Santoso Efrianti, Evi Eka Lestari Fauzan, Rizky Ferawati, Yohana Fransiska Hafid, Anggun Abdul Hairuddin Safaat Hasibuan, Dhandy Bintang Herick, Herick Keryanti, Keryanti Krista, Gustin Mustika Madaling, Madaling Manfaati, Rintis Maulana, Muhammad Reza Nanda, Ajeng Husni Nasution, Latifah Azmy Niswanda, Niswanda Nuril Huda Octaviana, Setyarini Nur P, Desy Purnamasari Padatau, Andini Dwi Pamantung, Jumardi Pinem, Adriel Ageva Andanov Putri, Fadhilah Rizky Aftriani Putri, Salsabila Azaliyah Rapotan Hasibuan Ridayati Ridayati Rizal Maulana, Rizal Sa’adah, Alfinur Insaniyati Umi Sabri, Ananta Suis Safitri, Sintia Saripudin Saripudin Sa’diyyah, Ghina Nabila Nur Sely Novita Sari sianturi, faldi daud suiyoso Sulton, Adam Syahfira, Ayunda Utama, Muhamad Adji Rahardian Yusrianti, Yusrianti