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All Journal Reaktor JURNAL KIMIA SAINS DAN APLIKASI Jurnal Bahan Alam Terbarukan Seminar Nasional Teknik Kimia Kejuangan Elkawnie Indonesian Journal of Science and Technology Konversi Info-Teknik Buletin Profesi Insinyur International Journal of Advance Tropical Food (IJATF) Jurnal Teknik Kimia dan Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Sains Materi Indonesia JURNAL REKAYASA KIMIA & LINGKUNGAN
Iryanti Fatyasari Nata, Iryanti Fatyasari
Department Of Chemical Engineering, Faculty Of Engineering, University Of Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology

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Journal : Konversi

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Development of antioxidant-rich edible film using eggshell and tapioca flours with kelakai (Stenochlaena palustris) extract Ma'rifah, Yulia Nurul; Adawiyah, Mariatul; Ariwibowo, Sigit; Nata, Iryanti Fatyasari; Juwita, Rinna; Vo, Duc-Thang
Konversi Vol 14, No 1 (2025): APRIL 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v14i1.22280

Abstract

One of the major challenges in the food industry in the limited shelflife products. A promising approach to address this issue is the use of edible films-thin, consumable layers that protect food from environmental factors such as moisture, oxygen, and humidity. This study aimed to evaluate edible films based on varying ratios of chicken eggshell flour and tapioca flour, determine the optimum concentration of Kelakai (Stenochlaena palustris) extract as an antioxidant source, and assess the films’ physical, chemical, and application properties. Edible films were prepared using eggshell flour (0-30% w/w), tapioca flour (5 g), distilled water (93.5 mL), Kelakai extract (0-10% v/v), and glycerol (1.5 g). The mixture was heated to ±96°C at 1000 rpm for 40 minutes, cast into 20 × 10 cm molds, and dried at 50°C for 24 hours. The best formulation—10% eggshell flour with 5% Kelakai extract—produced a film with 0.174 mm thickness, 1.5 MPa tensile strength, 27.4% elongation, and water vapor transmission rate of 10.0278 g/m²·h. FT-IR analysis revealed C-H, O-H, and C=O functional groups. Antioxidant activity showed 5.19% scavenging activity after 10 minutes. The film successfully preserved sausage for 7 days, demonstrating its potential to extend shelf life and serve as an eco-friendly packaging alternative.
Valorization of cassava peel starch into functional liquid glucose via acid-catalyzed hydrolysis using sulfonated carbon catalyst and red ginger (Zingiber officinale var. rubrum) extract Wulandary, Indah Retno; Laila, Noor; Dewi, Yuniza Shentiya; Ma'rifah, Yulia Nurul; Nata, Iryanti Fatyasari; Hadtimin, Ahmad Farhan
Konversi Vol 14, No 2 (2025): OCTOBER 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v14i2.24329

Abstract

The growing gap between sugar consumption and domestic product in Indonesia Highlights the need for alternative sweeteners derived from renewable resources. This study investigates the synthesis of functional liquid glucose from cassava peel starch through hydrolysis catalyzed by sulfonated carbon derived from palm empty fruit bunches (TKS-SO3H) and the enhancement of its antioxidant properties by red ginger extract. The TKS-SO3H catalyst was prepared via carbonization at 350 C followed by sulfonation at 180 C, yielding an H+ ion concentration of 1.745 mmol/g. Hydrolysis was conducted at 100 C for 60 minutes with a catalyst loading of 5% (b/v) and starch concentration ranging from 2.5 to 7.5%. The optimum glucose concentration of 4.14 mg/mL was achieved at 5% starch concentration, demonstrating the effective catalytic performance of TKS-SO3H. subsequently, liquid glucose was combined with red ginger extract in various volume ratios (1:1-1:4 v/v) to assess antioxidant capacity using the DPPH radical scavenging assay. The formulation with a 1:4 glucose-to-ginger ratio exhibited the highest scavenging activity of 48.63% after 10 minutes, indicating a significant enhancement of functional properties. The findings suggest that cassava peel, an agricultural by-product, can be utilized as a sustainable feedstock to produce bifunctional liquid glucose using an environmentally benign heterogeneous catalyst, contributing to the development of value-added and health-oriented sweeteners.
Utilisation of palm oil fibre cake biomass for magnetic nanoparticle biocomposites as adsorbents in Sasirangan liquid waste treatment Ukhrawi, Syamsul Ma'arif Putra; Nata, Iryanti Fatyasari; Juwita, Rinna; Gazaly, Ahmad; Karima, Ismi Nur; Prasetya, Angga
Konversi Vol 14, No 2 (2025): OCTOBER 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v14i2.24322

Abstract

Palm kernel fibre (fibre cake) is a waste product from the palm oil industry that has potential as a source of natural fibre. This study aims to utilise fibre cake to produce magnetic nanoparticle biocomposites as adsorbents for reducing the lead (Pb2+) content and Total Suspended Solids (TSS) in Sasirangan liquid waste. The research produced two types of biocomposites: one without amino groups (FCB-M) and one with amino groups (FCB-MH). Observations from Scanning Electron Microscopy (SEM) showed that magnetic nanoparticles had formed on the surface of the fibre cake. Treatment of palm oil fibres with NaOH restructured amorphous cellulose into crystalline cellulose, as indicated by a 30.25% increase in the Crystalinity Index (CrI) based on X-Ray Diffraction (XRD) analysis. The Pb²⁺ content absorbed by FCB and FCB-NH₂ was 97.84 mg/g and 101.82 mg/g, respectively, for 3 hours at pH 8. The modification of amino groups on the surface of the biocomposite resulted in a 164.85% increase in adsorption. The effectiveness of TSS reduction at pH 8 was 65.8% and 62.9% for FCB-M and FCB-MH, respectively. 
Co-Authors Abdul Ghofur Aceng Lesti Adawiyah, Mariatul Agata Febby Ayuningtyas Agita Purnawilda Agus Mirwan Aladin Eko Purkuncoro Anis Artiyani Ariwibowo, Sigit Asnia, Mira Azzahra, Atina Sabila Chairul Irawan Choir Muizliana Choir Muizliana, Choir Denis Yanuardi Dewi, Heny Puspita Dewi, Yuniza Shentiya Dian Sylvana Ansari Dian Sylvana Ansari, Dian Sylvana Doni Rahmat Wicakso Edi Mikrianto Emil Zacky Effendi Fadhillah, Hilda Nur Fitri Halisyah Fitriannoor Fitriannoor Gazaly, Ahmad Gita Cristy Hadtimin, Ahmad Farhan Helda Niawati Helda Niawati, Helda Hendrawan, Rangga Dwi Herlina Herlina Herlina Herlina Hesti Wijayanti Hesti Wijayanti Hesti Wijayanti I Putu Andika Putra I Putu Andika Putra, I Putu Andika Jayanudin Jayanudin Jefri A. Simanjuntak Jefriadi Jefriadi Jody Hartoto Prayogo Jody Hartoto Prayogo, Jody Hartoto Karima, Ismi Nur Kiky Corneliasari Sembiring Laila, Noor Lalu Mustiadi Ma'rifah, Yulia Nurul Madani, Zikri Daffa Aulia Marisa, Rosmasari Masrurotul Ajiza Meda Nur Anisa Meilana Dharma Putra Mira Asnia Mira Pangesti, Mira Misnawati Misnawati Muhammad Daffa Salaahuddin Muhammad Jauhar Mahdi Muthia Elma Nanik Astuti Rahman Ni Kadek Devi Ananda Saraswati Noor Laila Nooryantini Nooryantini Nor Asiyah Norlina Norlina, Norlina Paskah Fransiska Afrida Simatupang Prasetya, Angga Primata Mardina Retno Febriyanti Ridhayanti Mu'minah Rinna Juwita Rinna Juwita Rinny Jelita Ristiarini, Susana Rita Khairina Rodiansono Rodiansono Rosmasari Marisa Selly Agustina Sunnardianto, Gagus Ketut Syamsul Ma"arif Putera Ukhrawi Sylvera Bella Priscilla Toni Arianto Toni Arianto, Toni Tri Dianpalupidewi Tun Sriana Tun Sriana Ukhrawi, Syamsul Ma'arif Putra Vo, Duc-Thang Wulandary, Indah Retno Yudhi Christian Hariady Yuli Ristianingsih Yulia Nurul Ma'rifah Yulian Firmana Arifin Yuniza Shentiya Dewi Yuniza Shentiya Dewi Zakaria Zakaria