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All Journal Reaktor Eksergi: Chemical Engineering Journal JURNAL INTEGRASI PROSES Teknika: Jurnal Sains dan Teknologi Jurnal Ilmiah Universitas Batanghari Jambi JRST (Jurnal Riset Sains dan Teknologi) Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Abdimasku : Jurnal Pengabdian Masyarakat Jurnal Inovasi Pembangunan Jurnal Teknik Kimia dan Lingkungan Jurnal Pengabdian Masyarakat Bangsa Jurnal Teknologi Lingkungan Communication in Food Science and Technology Journal Of Chemical Process Engineering
Andri Sanjaya
Chemical Engineering Department, Institut Teknologi Sumatera, Jalan Terusan Ryacudu, Lampung Selatan 35365, Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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The Effect of Acidity Condition (pH) on The Color Change of Anthocyanin Compound from Butterfly Pea Flower Extract (Clitoria ternatea) Saputri, Desi Riana; Listyadevi, Yuniar Luthfia; Adiwibowo, Muhammad Triyogo; Damayanti, Damayanti; Auriani, Wika Atro; Fahni, Yunita; Sanjaya, Andri; Yusupandi, Fauzi; Yuniarti, Reni; Zega, Fidel Abdiman; Ikhlas, Fikri Rahmatul
Communication in Food Science and Technology Vol. 2 No. 2 (2023): Communication in Food Science and Technology
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Institut Teknologi Sumatera

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/cfst.v2i2.1570

Abstract

An Indonesian plant called the butterfly pea flower (Clitoria ternatea) is being cultivated to take advantage of the antioxidant properties of its anthocyanin concentration. Several solvents must be used to acquire anthocyanins from butterfly pea flower extract during the extraction procedure. Flowers have many various anthocyanin compositions and exhibit a range of colors. These color differences are utilized in food and beverages as natural colorants. The purpose of this study is to ascertain how the anthocyanin chemicals in butterfly pea flowers respond to acidic conditions in terms of color stability. The extraction was placed over the course of 18 hours with an ethanol solvent at a 60% concentration, and it was evaporated using a rotary evaporator at a temperature of 60°C. Anthocyanin extract of Butterfly pea flower was examined to investigate how pH changes affected color. The anthocyanin extract that had been obtained was subjected to acidity tests at pH 1 to 14. Anthocyanins become more stable in an acidic or low pH environment, giving an object its red color. While this continues, greater anthocyanin pH values will cause blue color fading. When anthocyanins have a high or low pH, it significantly affects food coloring.
Pengelolaan Sampah Plastik Menjadi Paving Block Sebagai Prospek Bisnis Masyarakat Desa Kota Agung, Pesawaran Achmad, Feerzet; Marlina, Titi; Mardiansyah, Rio; Sanjaya, Andri; Deviany, Deviany; Fahmi, Yunita; Suhartono, Suhartono
ABDIMASKU : JURNAL PENGABDIAN MASYARAKAT Vol 6, No 3 (2023): September 2023
Publisher : LPPM UNIVERSITAS DIAN NUSWANTORO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62411/ja.v6i3.1371

Abstract

Pelaksanaan pemberdayaan masyarakat melalui kegiatan pengelolaan sampah plastik menjadi produk berupa paving block, serta sebagai prospek bisnis dikalangan menengah kebawah. Tujuan utama dalam kegiatan ini yaitu masyarakat Desa Kota Agung, Kec. Tegineneng, Kab. Pesawaran, Lampung, dimana kegiatan ini dilakukan pada tanggal 24 januari 2023, yang dihadiri oleh 40 orang. Metode penyampaian yang dilakukan yaitu berupa penyuluhan mengenai sampah dan pendampingan cara pembuatan dengan memperlihatkan produk jadi dan melalui video sebagai media pembelajaran dalam pembuatan paving block dari sampah plastik. Selama pemaparan tentang proses pembuatan, respon masyarakat sangat antusias. Hal tersebut dilihat dari masyarakat yang banyak bertanya bahkan mencatat tentang cara pembuatan paving block dikarenakan proses pembuatan yang sangat mudah dan dapat mengurangi sampah yang ada disekitar untuk diolah menjadi produk yang bermanfaat dan bernilai jual.
Extraction of Avocado Seed Waste as a Potential Feedstock for Biodiesel Production Mustafa, Mustafa; Ladien, Ahmad Fatrijan; Andiani, Balqis Putri; Saputri, Desi Riana; Damayanti, Damayanti; Fahni, Yunita; Auriyani, Wika Atro; Said, Aja Avriana; Sanjaya, Andri
Eksergi Vol 21 No 3 (2024)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v21i3.13099

Abstract

The rising interest in sustainable energy sources has spotlighted biodiesel as a promising alternative to fossil fuels. Avocado seed waste, rich in vegetable oil, presents a potential feedstock for biodiesel production. However, optimizing the extraction process to maximize oil yield and quality is crucial. This study addresses the knowledge gap concerning the impact of drying time and solvent type on oil extraction efficiency from avocado seeds. Here, we show the effects of varying drying times (2, 3, and 4 hours) and using two solvents (96% ethanol and isopropyl alcohol) on the oil yield and quality using Soxhlet extraction. Results indicate increased drying time correlates with reduced moisture content, with values of 79.94%, 63.17%, and 47.39% for 2, 3, and 4 hours, respectively. Comparatively, isopropyl alcohol exhibited a higher fatty acid content (0.718%) than 96% ethanol. The density of oil extracted with 96% ethanol (1.34 g/ml) after 3 hours of drying surpassed that of isopropyl alcohol. These findings suggest that drying time and solvent type significantly influence the extraction efficiency and quality of oil from avocado seeds, highlighting their potential as a viable biodiesel feedstock.
Penurunan Kadar COD Air Limbah Domestik Menggunakan Fly Ash dengan Metode Adsorpsi Riztu, Sonia; Pradita, Natania Anggreani; Sufra, Rifqi; Adriansyah, Endi; P.T.Z, Luter evons; Suzana, Asih; Satria, Arysca Wisnu; Sanjaya, Andri
Jurnal Ilmiah Universitas Batanghari Jambi Vol 24, No 3 (2024): Oktober
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v24i3.5677

Abstract

Domestic wastewater was collected from a drainage system on Soekarno Hatta Street, Kalibalau Kencana, Kecepatan District, Bandar Lampung City, with a high Chemical Oxygen Demand (COD) content of 4,867 mg/L. If the wastewater is discharged directly into water bodies, it can reduce the availability of dissolved oxygen, potentially disrupting the survival of aquatic organisms. This research aims to determine the effect of contact time on the reduction of COD levels in domestic wastewater, the effect of fly ash adsorbent both activated and non-activated on the reduction of COD values, and its impact on other parameters according to domestic wastewater quality standards. Fly ash was activated using 6M NaOH and heated at 160°C for 1 hour. The adsorption process was carried out with varying contact times of 30, 60, 90, 120, and 150 minutes, using both activated and non-activated adsorbents with masses of 1.5 and 3 grams. The results of this study showed that the adsorption test with the activated adsorbent with masses of 1.5 and 3 grams reached optimum times of 90 and 60 minutes, respectively, with percentage reductions of 98.78% and 99.03%. In contrast, for the non-activated adsorbent with masses of 1.5 and 3 grams, optimum times occurred at 150 minutes, with percentage reductions of 95.64% and 90.79%, respectively.
Performance Test of Biogas Production from Tapioca Wastewater: Effect of HRT and Immobilized Media Sanjaya, Andri; Arhab, jabir Shoji; Salsabila, Dwinda; Damayanti, Damayanti; Fahni, Yunita; Deviany, Deviany; Agustryani, Putri; Auriyani, Wika Atro; Saputri, Desi Riana
Eksergi Vol 23 No 1 (2026)
Publisher : Prodi Teknik Kimia UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/eksergi.v23i1.16197

Abstract

Tapioca starch industry wastewater contains high concentrations of organic matter, offering potential for renewable energy generation via biogas production. This study evaluates the effects of hydraulic retention time (HRT) variation and Lampung natural zeolite as an immobilization medium on biogas production in an anaerobic reactor. Two reactor configurations were compared: one with zeolite as the microbial immobilization medium and a control reactor without any immobilization media. Zeolite improved the sCOD degradation efficiency up to 93% compared to the non-immobilized reactor. VFA conversion to methane remained more stable with zeolite, producing up to 520 mL of biogas at a 10-day HRT, with an average biogas yield of 61.97 mL/g dry substrate, much higher than 4.15 mL/g in the non-immobilized reactor. This research confirms the effectiveness of Lampung natural zeolite for enhancing microbial retention, accelerating methanogenesis, and improving overall anaerobic reactor performance. These results have substantial implications for developing efficient, sustainable, and environmentally friendly treatment technologies for tapioca starch wastewater, offering simultaneous solutions for pollution control and renewable energy generation.
Kinetic of Paper Waste Fed Batch Hydrolysis using Sulfuric Acid Catalyst : Kinetika Hidrolisis Limbah Kertas Secara Fed Batch Menggunakan Katalis Asam Sulfat Panjaitan, Jabosar Ronggur Hamonangan; Sinurat, Daniel Tumpal; Sihombing, Mai Melsi; Sanjaya, Andri; Sufra, Rifqi
JRST (Jurnal Riset Sains dan Teknologi) Volume 10 No. 1, March 2026: JRST
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/jrst.v10i1.28652

Abstract

Paper waste is a potential solid waste. Cellulose, which is the largest component of paper waste, consists of glucose monomers that can be obtained through the hydrolysis process. In this study, hydrolysis process and kinetic evaluation of paper waste in a fed batch method using sulfuric acid catalyst was investigated. The results showed that the highest conversion of paper waste hydrolysis was obtained when feeding the paper waste reactant in a fed batch of 2 grams with 90 minutes reaction time. Higher hydrolysis temperature and time produced higher conversion which the highest conversion was 19.083% at 90oC reaction temperature and 90 minutes of reaction. The activation energy produced in the fed batch hydrolysis process of paper waste using sulfuric acid was 422.526 kJ/mol. The application of fed batch hydrolysis method in this study affects the conversion and kinetics value of paper waste acid hydrolysis using sulfuric acid catalyst. The addition of reactants in a fed batch can increase the number of reactant particles and the potential for effective collisions, resulting in faster reaction rate.   ABSTRAK (Bahasa Indonesia) Limbah kertas merupakan limbah padat potensial yang cukup banyak mencemari lingkungan. Selulosa yang merupakan komponen terbesar limbah kertas terdiri dari monomer glukosa yang dapat diperoleh melalui proses hidrolisis. Pada penelitian ini akan diteliti proses hidrolisis dan evaluasi kinetika limbah kertas secara fed batch menggunakan katalis asam sulfat. Tahapan penelitian ini terdiri dari preparasi bahan baku, proses hidrolisis dan pengolahan data kinetika. Proses hidrolisis dilakukan secara fed batch pada berbagai variasi suhu (70, 80 dan 90 oC) dan variasi waktu reaksi (30, 60 dan 90 menit). Hasil penelitian menunjukkan bahwa konversi tertinggi hidrolisis limbah kertas diperoleh pada pengumpanan reaktan limbah kertas secara fed batch sebesar 2 gram dengan total waktu reaksi 90 menit. Semakin tinggi suhu dan waktu hidrolisis akan menghasilkan konversi yang semakin tinggi dimana konversi tertinggi diperoleh sebesar 19,083% pada suhu reaksi 90oC dan 90 menit reaksi. Energi aktivasi yang dihasilkan pada proses hidrolisis fed batch limbah kertas menggunakan asam sulfat yaitu 422.526 kJ/mol. Aplikasi metode fed batch hidrolisis pada penelitian ini mempengaruhi nilai konversi dan kinetika reaksi hidrolisis limbah kertas menggunakan katalis asam sulfat. Penambahan reaktan secara fed batch meningkatkan jumlah partikel reaktan dan potensi terjadinya tumbukan efektif sehingga mengakibatkan laju reaksi semakin meningkat
Co-Authors A'yuni, Dewi Qurrota Achmad, Feerzet Achmad, Feerzet Adimas Anugrah Rivandy Adiwibowo, Muhammad Triyogo Agriadi Dwi Nugroho Putro Agriadi Dwi Nugroho Putro Agus Slamet Riyadi Agustina, Berliana Putri Agustryani, Putri Akbar, Daffa Ahsanul Aldillah Herlambang Alfares, Nelson Alhanif, Misbahudin Alhuda, Alhuda Amedeo Cavendish Amelia, Devita Andiani, Balqis Putri Anugrah Ayub Waskito Arhab, Jabir Shoji Arifino Decika Rachman Athallah Satrionindya Herlambang Atro Auriyani, Wika Aulia, Siti Aisyah Rahimah Auriani, Wika Atro Auriyani, Wika Atro Auriyani, Wika Atro Auriyani, Wika Atro Auriyani, Wika Atro Azzaima Ayu Ulisya A’yuni , Dewi Qurrota Christian Surya Atmaja, Michael Cika Amalia Shabira Damayanti Damayanti Damayanti Damayanti Demi Dama Yanti Desi Riana Saputri Desi Riana Saputri Devia Gahana Cindi Alfian Deviany Deviany, Deviany Deviany, Deviany Deviany, Deviany Didik Supriyadi, Didik Dikri Uzlifah Janah Edwin Rizki Safitra Endi Adriansyah Fadhila, Syalsa Fahmi, Yunita Fahni, Yunita Fahni, Yunita Fahni, Yunita Fahni, Yunita Fahni, Yunita Feerzet Achmad Fidel Abdiman Zega Fikri Rahmatul Ikhlas Galeh Widharma Guita Normi Halizah, Nurul Hasna, Afifah Ibnu Maulana Hidayatullah Ihsan, Ahyatul Ikhlas, Fikri Rahmatul Imalia, Calaelma Logys Jabosar Ronggur Hamonangan Panjaitan Kodarif, Abdul Rozak Kurniawansyah, Arief Ladien, Ahmad Fatrijan Listyadevi, Yuniar Luthfia Listyadevi, Yuniar Luthfia Mahardika, Melbi Mardiansyah, Rio Marlina, Titi Mediana, Annisa Misbahudin Alhanif Muhammad Bagus Tri Jaya Saputra Muhammad Triyogo Adiwibowo Mustafa Mustafa Mustafa, Mustafa Mustafa, Mustafa Nugroho, Andreas Dwi Nurafinda, Meylani Dwi Nurul Mawaddah Nyoman Wiswa Kananda, I P.T.Z, Luter evons Pajrin, Alfina Pradita, Natania Anggreani Prayoga, Ageng Kaka Putra Hidayatulloh Putra, Muhammad Alparidi Pamungkas Putri, Amelia Syifa Divana Rahmawati, Disty Rahmiyati, Lutfia Ramadhan, Zulfikar Ratih Ainun Mardiyah Reni Yuniarti Riana Saputri, Desi Ridho Ramadhan Jakop Rifqi Sufra Riziq, Annisa Zahara Rizki Safitra, Edwin Riztu, Sonia Robianto, Bagus Safira Anggarini Safitra, Edwin Rizki Safitra, Edwin Rizki Said, Aja Avriana Salsabila, Dwinda Sanjaya, Bagus Gelorawan Saputri, Desi Riana Saputri, Desi Riana Saputri, Desi Riana Saputri, Desi Riana Saputri, Desi Riana Sari, Dewi Kurnia Satria , Arysca Wisnu Satria, Arysca Wisnu Shifa, Naufal Brain Sihombing, Mai Melsi Silvia, Putri Zulva Sinurat, Daniel Tumpal Suhartono Surya Ningrum, Riska Suzana, Asih Sweatenia, Elisabeth Grace Syahriantoro, Nur Alfi Taharuddin Taharuddin Tiara, Mega Turnip, Nina Juliana Roberta Valiendra, Dhanda Ahmad Veronika Viany Suswanto Wicaksono, Rihardian Maulana Wika Atro Auriyani Yuniar Luthfia Listyadevi Yuniarti, Reni Yuniarti, Reni Yunita Fahni Yusupandi, Fauzi Yusupandi, Fauzi Yusupandi, Fauzi Zega, Fidel Abdiman