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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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OPTIMASI WAKTU DAN KONSENTRASI PELARUT BASA DALAM PROSES HIDROLISIS GELATIN DARI TULANG CEKER AYAM KAMPUNG Bintang Arya Sena; Indah Dwi Asti; Nur Aini Fauziyah; Sintha Soraya Santi
JURNAL INTEGRASI PROSES Vol 13, No 2 (2024)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v13i2.28267

Abstract

Limbah pangan termasuk limbah yang mudah terurai dengan bantuan mikroorganisme. Sebagian besar limbah pangan skala rumah tangga yang dihasilkan belum mendapatkan perlakuan pengolahan limbah dengan baik yang menyebabkan dampak yang merugikan bagi lingkungan. Pengolahan limbah pangan menjadi produk bernilai mutu tinggi salah satunya dengan mengolah menjadi gelatin. Limbah yang memiliki kandungan kolagen yang tinggi merupakan bahan baku untuk menghasilkan gelatin. Salah satu bahan yang dapat digunakan yaitu tulang ceker ayam kampung yang mengandung protein yang tinggi. Proses untuk mengolah tulang ceker ayam kampung menjadi gelatin melalui proses ekstraksi dan hidrolisis kolagen. Tujuan dari penelitian ini adalah untuk mengetahui titik optimum konsentrasi pelarut basa dan lama waktu perendaman dalam proses hidrolisis pada tulang ceker ayam kampung terhadap gelatin yang dihasilkan. Titik optimum dapat diketahui berdasarkan hasil yield yang diperoleh dari setiap variabel. Penentuan titik optimum ini dengan menggunakan metode response surface method (RSM) yang diperoleh berdasarkan hasil yield tertinggi. Kandungan gelatin pada sampel dianalisis menggunakan FTIR. Kondisi optimal dari proses hidrolisis gelatin dari tulang ceker ayam kampung menggunakan metode RSM, yaitu pada rasio waktu perendaman 3,1121 jam dan konsentrasi pelarut 1,1151 M dihasilkan sebesar 0,4156 gram.
Bioethanol Generation Through the Fermentation Process of Pineapple and Black Grape Utilizing Saccharomyces cerevisiae and Saccharomyces bayanus Ika Nawang Puspitawati; Sintha Soraya Santi; Kindriari Nurma Wahyusi; Sani
Nusantara Science and Technology Proceedings 4th International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3609

Abstract

Bioethanol is an alcohol molecule that is derived through the process of fermentation using microorganisms. Fermentation is a biological process in which microbes metabolize fermentable sugars as a source of nourishment, resulting in the production of ethyl alcohol and various other byproducts. These microbes commonly metabolize 6-carbon carbohydrates, with glucose being one of the most prevalent examples. Hence, biomass materials rich in glucose or glucose precursors are the most readily convertible to bioethanol. The examination of bioethanols employing Saccharomyces bayanus demonstrated notable disparities in the obtained alcohol concentration. The utilization of Saccharomyces bayanus yeast, in the absence of sugar supplementation, for the conversion of grape into bioethanol, yielded a modest alcohol concentration of merely 14%. In the context of bioethanol production, pineapple was utilized as a substrate, wherein 4 grams of Saccharomyces bayanus yeast and an additional 70 grams of sugar were introduced as a nutritional supply to support yeast growth and metabolism. The present fermentation procedure resulted in an alcohol concentration of around 21%.
Sintesis dan Karakterisasi Kalsium Fosfat dari Cangkang Bekicot dengan Metode Presipitasi Pangestu, Titan Obby; Damayanti, Savira Farizqy; Santi, Sintha Soraya; Muljani, Srie
CHEESA: Chemical Engineering Research Articles Vol. 4 No. 2 (2021)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v4i2.8931.82-90

Abstract

Cangkang bekicot memiliki potensi sebagai bahan baku sintesis kalsium fosfat karena kandungan kalsium yang sangat tinggi, yaitu sekitar 99 %. Kalsium fosfat dapat diaplikasikan sebagai biomaterial karena sifatnya yang sama dengan jaringan penyusun tulang. Pada saat ini kebutuhan akan biomaterial sangat tinggi dan telah memberi dampak yang cukup besar terutama dalam bidang kedokteran ortopedi. Penelitian ini bertujuan untuk mengkaji karakteristik kalsium fosfat dengan menggunakan bahan baku cangkang bekicot. Penelitian ini dilakukan dengan metode presipitasi dengan variasi pH dan suhu sintering. Cangkang bekicot di kalsinasi pada suhu 900 oC lalu di campurkan dengan larutan asam fosfat sesuai dengan rasio molar Ca/P 1,67. Pengendapan kalsium fosfat dilakukan saat proses presipitasi dengan penambahan NaOH untuk mengatur pH pada rentang 11 dan 12. Selanjutnya dilakukan proses sintering pada suhu 600, 700, 800, dan 900 oC. Karakterisasi kalsium fosfat yang dihasilkan menggunakan XRF, XRD, dan SEM. Hasil penelitian menunjukkan perolehan hidroksiapatit (Hap) mencapai 100% pada pH 12, dan suhu 600 oC dengan struktur kristal amorf.
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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Abstract

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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Abstract

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.
PENGARUH WAKTU SAKARIFIKASI DAN KECEPATAN PENGADUKAN PADA HIDROLISIS ENZIMATIK PATI SUWEG TERHADAP KADAR GLUKOSA DAN KADAR AIR DALAM GLUKOSA CAIR Puspitasari, Kurnia; Andriani, Silvia Desy; Wahyusi, Kindriari Nurma; Sutiyono, Sutiyono; Santi, Sintha Soraya
JURNAL INTEGRASI PROSES Vol 14, No 1 (2025)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v14i1.32750

Abstract

Kebutuhan gula nasional yang tinggi tidak sebanding dengan produksi dalam negeri mendorong eksplorasi bahan baku alternatif untuk produksi glukosa cair. Umbi suweg (Amorphophallus campanulatus) sebagai tanaman lokal dengan kadar pati tinggi, memiliki potensi besar untuk dimanfaatkan sebagai bahan baku pembuatan glukosa cair. Penelitian ini bertujuan untuk mengetahui pengaruh variasi waktu sakarifikasi (2-6 jam) dan kecepatan pengadukan (200-400 rpm) terhadap kadar glukosa dan kadar air dalam glukosa cair dari hidrolisis pati umbi suweg menggunakan metode enzimatis. Proses hidrolisis diawali dengan pembuatan pati dari umbi suweg, dilanjutkan likuifikasi dengan enzim α-amilase, dan sakarifikasi menggunakan enzim glukoamilase. Hasil menunjukkan bahwa peningkatan waktu sakarifikasi dan kecepatan pengadukan berbanding lurus dengan kadar glukosa yang dihasilkan dan menurunkan kadar air. Kadar glukosa tertinggi tercapai pada kondisi 6 jam dan kecepatan 400 rpm dengan nilai sebesar 27,5 °Brix. Namun, nilai ini belum memenuhi standar SNI yakni sebesar 70 °Brix. Kadar air yang dihasilkan berada dalam kisaran 7,229-18,139%, yang masih memenuhi batas maksimal menurut SNI 01-2978-1991. Penelitian ini menunjukkan bahwa umbi suweg memiliki potensi sebagai bahan baku alternatif dalam produksi glukosa cair, di mana waktu sakarifikasi serta kecepatan pengadukan merupakan faktor signifikan dalam meningkatkan hasil glukosa. Penelitian lanjutan disarankan untuk memperpanjang waktu sakarifikasi agar mencapai kadar glukosa yang sesuai standar. 
OPTIMASI PROSES ADSORPSI PENURUNAN ANGKA ASAM BIO-OIL HASIL PIROLISIS BATANG TEMBAKAU MENGGUNAKAN RESPONSE SURFACE METHODOLOGY (RSM) Haque, Annisa Mutiara Salma; Ristikawati, Anita; Santi, Sintha Soraya
JURNAL INTEGRASI PROSES Vol 14, No 1 (2025)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v14i1.31711

Abstract

Limbah tembakau, khususnya batang tembakau, masih kurang dimanfaatkan meskipun Indonesia merupakan salah satu produsen tembakau terbesar. Penelitian ini bertujuan untuk mengoptimalkan kualitas bio-oil yang berasal dari pirolisis limbah tembakau dengan menurunkan bilangan asam melalui adsorpsi menggunakan karbon aktif. Keasaman yang tinggi dari bio-oil berdampak negatif pada stabilitas, korosivitas, dan efisiensi energi, sehingga membatasi aplikasi langsung sebagai bahan bakar. Proses percobaan melibatkan pirolisis pada suhu 400°C, diikuti dengan adsorpsi dengan karbon aktif pada berbagai massa dan waktu kontak. Hasil penelitian menunjukkan bahwa peningkatan massa adsorben dan waktu adsorpsi secara signifikan menurunkan bilangan asam bio-oil. Berdasarkan optimasi menggunakan RSM, kondisi terbaik diperoleh pada massa adsorben 14,964 g dan waktu adsorpsi 148,562 menit, dengan bilangan asam minimum sebesar 0,600 mg KOH/g. Karakterisasi tambahan, termasuk analisis proksimat dan pengukuran titik nyala, mengkonfirmasi peningkatan sifat bahan bakar. Temuan ini menggarisbawahi efektivitas adsorpsi karbon aktif sebagai metode yang hemat biaya dan terukur untuk meningkatkan kualitas bio-oil, mendorong penggunaan praktisnya dalam aplikasi energi terbarukan.
Synthesis of Sodium Hydroxide from Traditional Salt through Electrolysis Process Ariesta Artamevia, Nazwa; Khonsa Rezkania, Gita; Redjeki, Sri; Triana, Nurul Widji; Santi, Sintha Soraya
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 9 No. 2 (2025)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v9i2.746

Abstract

Indonesia is expected to compete with other countries in the industrial sector, which plays a crucial role in the economic growth of a nation for its development. In several industries in Indonesia, NaOH plays a critical role in the production process, serving both as a primary component and as a supporting component. In the chemical industry, the chlor-alkali process is a crucial electrolytic technique utilized. The products generated from this process include Cl2, H2, and NaOH. This research utilizes traditional salt as a raw material for the production of NaOH, considering that traditional salt has a high NaCl content and also contains H2O, which is expected to yield NaOH with optimal concentration. This study aims to produce technical-grade NaOH that complies with the Indonesian National Standard (SNI) by examining the effects of electrical voltage and electrolysis time on the NaOH produced through the electrolysis process. The stages of this research include the preparation of a salt solution, the electrolysis process, and product analysis. The study was conducted with an NaCl concentration of 86.72% at electrical voltages of 5, 7.5, 10, 12.5, and 15 volts during the electrolysis process. Additionally, the electrolysis durations used were 100, 150, 200, 250, and 300 minutes. The weight of NaOH produced at an electrical voltage of 12.5 volts and a time of 100 minutes was 1.081 grams of NaOH. Contribution to Sustainable Development Goals (SDGs):SDG 9: Industry, Innovation, and Infrastructure SDG 12: Responsible Consumption and ProductionSDG 8: Decent Work and Economic Growth)SDG 13: Climate Action
Kajian Pengaruh PH dan Berat Kertas Terhadap Sintesis dan Karakteristik Silika Fiber dari Limbah Kertas HVS dan Kardus dengan Metode Sol Gel Ardya Pramesti Regita Cahyani; Foni Putri Sandi; Sintha Soraya Santi
Jurnal Fisika Unand Vol 14 No 5 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.5.428-434.2025

Abstract

The conversion of paper waste into silica fiber represents a strategic effort to reduce environmental pollution while adding value to HVS and cardboard waste. This study aims to examine the effect of pH and paper waste weight variations on the synthesis process and the characteristics of silica fiber produced using the sol-gel method. HVS and cardboard waste were used as cellulose sources, combined with sodium silicate and methanol. The variables tested included pH (3–7) and paper weight (8, 10, and 12 grams). Characterization involved density analysis, functional group identification using FTIR, and thermal stability assessment via TGA. The optimum condition for HVS waste was achieved at pH 5 with 8 grams, yielding a density of 1.8946 g/cm³, while for cardboard it was at pH 5 with 12 grams, yielding a density of 2.0228 g/cm³. Silanol and siloxane groups were identified in the FTIR spectra, and TGA results indicated good thermal stability at high temperatures. It can be concluded that variations in pH and paper waste weight significantly affect the formation and properties of the resulting silica fiber.
Effect of Additional Cellulose Bacterial from Nata De Soya and Chitosan in Bioplastic Manufacturing Nelvira Juanmara Ardyansa; Ari Suwito Putra Ramadhon; Sintha Soraya Santi
Journal of Applied Science, Engineering, Technology, and Education Vol. 4 No. 2 (2022)
Publisher : PT Mattawang Mediatama Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (441.879 KB) | DOI: 10.35877/454RI.asci1133

Abstract

Plastics are synthetic polymers from petroleum or petrochemicals that are difficult to biodegrade by bacteria and microbes. Non-biodegradable plastics cause the accumulation of large amounts of plastic waste Solutions that can reduce plastic waste by making plastics that are easily biodegradable. In this study, tofu liquid waste is used as a basic material for the manufacture of bioplastics. Tofu liquid waste is waste generated from tofu production. This study aims to determine the effect of adding bacterial cellulose and chitosan on the manufacture of bioplastics from liquid waste tofu (whey) in terms of tensile strength, elongation, water solubility, and functional groups (FTIR) in accordance with PET plastic standards (Polyethylene terephthalate). The research procedure on the effect of adding bacterial cellulose and chitosan on the bioplastic fabrication of Nata De Soya. First, from tofu liquid waste, Acetobacter Xylinum starter was added and then fermented for 10-12 days to become Nata De Soya. After that it was neutralized with aquadest, removed the water by pressing, and dried to become bacterial cellulose. The process of making bioplastic with the addition of chitosan (grams) 2,3; 3.1; 3.9; 4.7 and 5.5 and bacterial cellulose (grams) 0.5 ;1.5; 3.9; 7; and 11. In the manufacture of bioplastics with the addition of Bacterial Cellulose and chitosan, it is appropriate, namely the tensile strength obtained will increase and the solubility in water decreases. From the results of our research, the best results were obtained in the addition of S5K5 with a tensile strength value of 9.665 MPa, an elongation value of 31.3%, and a solubility value in water of 17.9%. It has a higher tensile strength, smaller elongation and lower water solubility. The effect of the addition of chitosan on the tensile strength value can increase the tensile strength (Tensile Strength Value), the addition of bacterial bacterial cellulose and chitosan can affect the elongation of bioplastics getting smaller and the effect of chitosan can reduce solubility in water. It is good but still far from the standard PET (Polyethylene Terefelat) which is 60-80 Mpa.
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