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All Journal Agrointek Jurnal Teknik Kimia Jurnal Teknologi Pertanian Jurnal Fisika Unand JURNAL INTEGRASI PROSES Journal of Natural Sciences and Mathematics Research Briliant: Jurnal Riset dan Konseptual Jurnal Penelitian Pendidikan IPA (JPPIPA) CHEESA: Chemical Engineering Research Articles Journal of Functional Food and Nutraceutical Journal of Applied Science, Engineering, Technology, and Education Nusantara Science and Technology Proceedings International Journal of Eco-Innovation in Science and Engineering (IJEISE) AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Serambi Engineering Indonesian Journal of Chemical Science
Sintha Soraya Santi
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Pembangunan Nasional “Veteran” Surabaya, East Java
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Other

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Journal : Serambi Engineering

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Pengaruh Ketebalan Membran Terhadap Sifat-Sifat Membran (Contact Angle, Porositas dan Selektivitas) Winandri, Kautsar Rahman; Anjuda, Adli Putra; Santi, Sintha Soraya
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Polymeric membranes are commonly used materials for gas separation. Blending polymers with inorganic fillers is the most efficient way to improve membrane performance. Fillers used to date include zeolite, silica, metal organic framework (MOF) and carbon molecular sieve (CMS). However, in practice, the fillers used in membrane production are considered to be expensive. Biochar is a carbon-rich solid material produced by the combustion of organic materials or biomass with little or no oxygen (pyrolysis). Biochar is also readily available and its cost is relatively affordable. Biochar has similarities to CMS in that both contain carbon, with the commercial biochar used in this study being 70% carbon. The thickness of a membrane can affect the selectivity value of the membrane due to differences in filtration thickness. The membranes made with biochar fillers and different membrane thicknesses were then tested to determine their properties. Based on the tests conducted, it was found that the membranes produced had a higher density as the membrane thickness increased. In addition, the membranes produced were also hydrophilic. The highest selectivity value was achieved by the membrane with a thickness of 500 µm.
Optimization of Edible Straw Characteristics from Kimpul Taro Starch and Patin Fish Skin Gelatin with Sorbitol Addition Tasya Vyra Putri Ariyani; Amalia Azzahroh; Sintha Soraya Santi
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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The pervasive contamination resulting from plastic straw usage has necessitated the development of a resolution to address this predicament. One potential avenue for exploration is the development of an environmentally sustainable edible straw. The objective of this study is to design and evaluate the optimal materials and characteristics of an edible straw that complies with the Japanese Industrial Standard, which serves as an international benchmark. The independent variables employed in this study encompass the ratio of kimpul taro starch and catfish skin gelatin, along with sorbitol. These variables were analyzed using Central Composite Design (CCD) and Response Surface Methodology (RSM), with the assistance of Design Expert 13 software. The edible straw was produced through a mixing and casting process, using a ratio of catfish skin gelatin to kimpul taro starch of 5:5; 4:6; 3:7; 2:8; 1:9, along with the addition of plasticizers at varying concentrations of 0%; 0.4%; 0.8%; 1.2%; and 1.6%. The characteristics that were the focus of the analysis included thickness, tensile strength, elongation, solubility, and biodegradation rate. The findings of this study suggest that the edible straw under consideration is in accordance with the Japanese Industrial Standard and is deemed safe for utilization and ingestion.
Sintesis dan Karakterisasi Katalis Aluminosilikat dari Kaolin Zafirah, Shakanti 'Aqilah; Windhy Mutiara Salsabillah; Sintha Soraya Santi; Nurul Widji Triana; Susilowati
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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This study aims to synthesize and characterize aluminosilicate catalysts derived from Indonesian kaolin through the hydrothermal method with variations in surfactant type and aging temperature. Kaolin served as the main source of silica and alumina, while CTABr (cationic) and PEG (non-ionic) acted as structure-directing agents that guided the formation of the catalyst pore framework. The synthesis was carried out at aging temperatures of 25°C, 40°C, 50°C, 65°C, and 70°C to investigate their effects on the functional groups and crystallinity of the catalysts. FTIR analysis revealed the presence of main Si–O–Si and Al–O–Si functional groups in all samples, with additional organic peaks attributed to the surfactants. Samples synthesized with CTABr showed sharper spectral peaks, indicating a more ordered structure. XRD analysis showed that the aluminosilicate catalyst synthesized with CTABr at 50°C exhibited the highest diffraction intensity (2615 cts), representing higher crystallinity compared to the PEG-based sample, which remained amorphous. SEM observations demonstrated that PEG produced smoother and more porous particle morphology, while CTABr resulted in agglomerated particles. Overall, the combination of CTABr surfactant and 50°C aging temperature yielded the best synthesis result with a stable semi-crystalline structure. This research highlights the great potential of local kaolin as a sustainable and efficient raw material for aluminosilicate catalyst production.
Co-Authors Amalia Azzahroh Andriani, Silvia Desy Anjuda, Adli Putra Ardya Pramesti Regita Cahyani Ari Suwito Putra Ramadhon Ariesta Artamevia, Nazwa Azzahra, Tsania Putri Bintang Arya Sena Cakradetha, Ivenda Sasquea Chamida, Rida Damayanti, Savira Farizqy Dyah Suci Perwitasari Erliyanti, Nove Kartika Erwan Adi Saputro Erwan Adi Saputro Febriansyah, Harris Foni Putri Sandi Hamzah Fansuri Haque, Annisa Mutiara Salma Hariyanto, Ayu Puspita Kandhi Hartono, Muhamad Dendy Ika Nawang Puspitawati Indah Dwi Asti Irawati , Febriana ISNI UTAMI Juventino, Syahdhan Adiyah Islami Kesuma, Destha A. Ketut Sumada Caecillia Pujiastuti Khonsa Rezkania, Gita Kindriari Nurma Wahyusi Kindriari Nurma Wahyusi Kusumawati, Yuly Milenia, Bella Mohd Hafiz Dzarfan Othman Muhammad Aji Pangestu Mutasim Billah Muthiah, Dewi Muzdalifah, Muzdalifah Nandini , Atika Nelvira Juanmara Ardyansa Novel Karaman Nugraha, Reva Edra Nur Aini Fauziyah Nuraffandy, Achmad Naufal Nurfita, Etti Nurhediana, Silvana Dwi Nurul Widji Triana Pangestu, Titan Obby Pasang, Tim Pasang, Timotius Pramuji, Faiq Hawaari Ahmad Prastica, Nita Purwanto Purwanto Puspitasari, Kurnia Putranto, Thomas T. Rachmad Ramadhan Yogaswara Rahmani, Tara Puri Ducha Ristikawati, Anita Rohman Rosida Rosida Rosida Rosida Rosida Rosida Rosida, Rosida - Salfana, Dian Rizka Sani Sania, Nabilla Silvana Dwi Nurherdiana Silvy Indah Safitri Sri Redjeki SRIE MULJANI Suprihatin Suriyanto Suriyanto, Suriyanto Susilowati sutiyono sutiyono Sutiyono, Sutiyono Syafsir Akhlus Tasya Vyra Putri Ariyani Trianna, Nurul Widji Utama, Shanita Agitiya Wahyudi, Bambang Wahyusi, Kindriari Nurma Winandri, Kautsar Rahman Windhy Mutiara Salsabillah Yahya A. Zafirah, Shakanti 'Aqilah