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Penambahan Ekstrak Bawang Putih pada Edible coating Pati Singkong dan Tepung Cangkang Telur Terhadap Masa Simpan Cabai Merah Nurhalimah, Siti; Amanah, Lisania; Puspasari, Erna; Iznilillah, Wilna
JURNAL AGROINDUSTRI HALAL Vol. 11 No. 3 (2025): Jurnal Agroindustri Halal
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/jah.v11i3.16184

Abstract

Red chili is a horticultural product that has a short shelf life at room temperature, one of which is due to microbial contamination. This is because metabolic activities such as respiration still occur after the product is harvested. Therefore, the application of Edible Coating is an alternative to extend the shelf life of red chili. This study aims to study the effect of different concentrations of garlic extract on weight loss, TPC value, and sensory quality of red chili. Randomized Block Design (RAK) 1 factor for weight loss parameters, TPC value, sensory quality with four treatment levels consisting of A1 (0%), A2 (3%), A3 (6%), A4 (9%). The results showed that differences in garlic extract concentrations affected the weight loss values ​​around 8.52%-2.16%, the TPC values ​​ranging from 6.93 to 5.17 Log CFU/g, the sensory quality of red color, slightly complex and smooth texture, and non-rotten aroma in red chilies during a 9-day storage period at room temperature.
Synthesis of Fe₃O₄ using the Co-precipitation Method with Temperature and Time Treatment as Methylene Blue Adsorbent Kuntjahjono, Mayang Fauziah Putri; Lestari, Aura Puja; Nurhalimah, Siti; Sarweswara, Wikrama; Purba, Farelino Oktavianus; Kaunang, Andrew Miracle; Sasongko, Nugroho Adi; Rahmat Basuki
Sorption Studies Vol. 1 No. 2 (2025): Sorption Studies, December 2025
Publisher : Indonesian Scholar Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55749/ss.v1i2.94

Abstract

Magnetite nanoparticles (Fe₃O₄) possess unique magnetic properties and are widely applied in various fields such as biomedical technology, environmental remediation, and material separation. This study reports the synthesis of Fe₃O₄ using the co-precipitation method under varying conditions of temperature, reaction time, and atmospheric exposure (open vs. closed system). Ferric and ferrous salts were reacted with ammonium hydroxide under controlled heating at 70°C and 80°C for 60 minutes. The synthesized materials were evaluated through visual color inspection, qualitative magnetic response, yield efficiency, and magnetic load-bearing capacity. The results showed that a closed system at 80°C produced the most optimal Fe₃O₄, indicated by a deep black color, strong magnetic attraction (149.86 mN), and a yield of 92.5%. Comparatively, open systems led to partial oxidation of Fe², resulting in less magnetic phases like maghemite or hematite. The findings confirm that controlling synthesis parameters, especially atmospheric exposure and temperature, significantly influences the purity, particle uniformity, and magnetic strength of Fe₃O₄ nanoparticles, highlighting the importance of optimized synthesis for practical applications.
Co-Authors Abdullah, Muhammad Lutfi Adnandhika, Muhammad Faris Tsany Ahmad Mukri Aji Ahmad, Hishomudin Aisha, Puteri Salsabilla Akbar, Abdul Malik Alfi Mubarok, Muhammad Sa'dan Alfisyah, Mirna Febi Amalia , Lia Amanah, Lisania Amanda, Ressa AMINULLAH Anastasia Pudjitriherwanti Andrian, Dedek Andrian, Dedek Andrian Anggaraini, Dila Anggraini, Rofiyu Annisa Rahmi, Annisa Anwar, Muhammad Khoerul Aphafield, Tresna Ligar Apriani, Wilda Arabiah, Rabiatul Arbi Haza Nasution, Arbi Haza Arif Fahmi Arshyla Eliska Arsiyana, Marliza Artha, Dewi Juni assajjad, umar Asti Ratnasari, Asti Aulannisa, Fairuza Auri, Tiara Awwalullah, M. Shaffan AYU LESTARI Ayu Rakhma Wuryandini Azah, Istiani Nurul Bariqoh, Sirrie Bhisma Murti Dacara, Editha Dandi Bahtiar Deking, Sheva Agnes Destri, Yuhelva Dewi, Novia Putri Distya Riski Hapsari Dohardo, Aldi Dwi Sartika, Dwi Dwiansyah, Rafli Efendi, Rudi Eko Mujiyono Epa Paujiah, Epa Erna Puspasari Estin Nofiyanti Fadillah, Cindyo Daffa Fadillah, Masrianti Fakhirah, Nidya Faridah Handayasari Fatah, Eeb Saifullah Fauzi, Muhammad Rizki Fauziah, Siti Latifah Febiansyah, Navis Febriaeni, Riska Linda Febriana Hamdani, Dhea Febriani, Rindiana Febrianti, Ika Ajeng Febriyanti, Zahara Feriskinanti, Pamesti Ajeng Firmansyah, Efrin Fitrina Lestari Ginanjar, Heri Gunawan Gunawan Hadiansah, Hadiansah Harahap, Cory Harahap, Deswira Lianda Sari Harsanto, Prasetyo Hasanah, Aninda Putri Hastuti, Arti Hatmoko, Zulvan Dwi Heni Pujiastuti Hia, Siti Sadarwarni Hia, Yarman Hilyatin, Dewi Laela iin wahyuni Indah Resti Ayuni Suri Irli, Sosa Sonia Islami, Sadiyatul Ismail, Siti Hajar Izha, Salsabila Nurul Iznilillah, Wilna Jatmiko, Novi Satria Jufri, Soleman Juniarti, Nola Tri Jurna, Jurna Juwina, Siti nurul K Fadhilah, Nurhidayah Kaprawi, Moch Aripin Kasmanto Rinaldi, Kasmanto Kaunang, Andrew Miracle Kharisma, Kharisma Kharyani, R. Aldini Khoerunnisa, Nenden Kirana, Rosi Roro Kuntjahjono, Mayang Fauziah Putri Kurniawan, M. Fakih Lani Dasopang, Zahra Omas Lestari, Aura Puja Lilis Marina Angraini Loska, Febri Lubis, Fauziah Maghfira, Muthia Maratus Solikha Mardiana Mardiana Marhamah, Irma Siti Marjohan, Masno Martaviona, Jiza Matondang, Karimatunnisa Maulana I, Farhan Mellyanawaty, Melly Mudopar, Mudopar Muhammad Abdullah Muhammad Firdaus Muhammad Rifqi MUHAMMAD TAUFIK Mukhreza, Destila Munawar, Muhammad Rasyid Khair Muthi'uddin, Ahmad Muthiatulmillah, Siti Muyasar, Nur Alya Muzakir Nadhifah, Zahra Ariella Nanny Harmani Nasution, Ahyana Nasution, Kobul Arif Nasution, Latipah Nazlah N, Hanan Netriwati Nisa, Gina Sahadatun Noli Novidahlia Nopiyanti, Winda Nugroho Sasongko Jati, Nugroho Sasongko nur hafizah Nur Oktavia, Andini Nurma'ripat, Ikna Nurmasari, Nurmasari Nursyofia, Nasya Pamungkas, Wisnu Panehafo, Elina Amadhila Pauzi, Yoviar Prasetya, Hanung Purba, Farelino Oktavianus Puspahati, Shela Puspita, Reni Putra, Alfridho Pramandanu Putra, Bagja Rahma Putra, Fikri Haimal Putra, Husna Mahendra Putri Ishak, Shakila Qataria Putri Rahmawati Rachmadio, R Edy Rachmat, Aisyah Indriani Raharja, Mahardhika Cipta Rahmat Basuki Rahmat, Aisyah Indriani Rahmawati, Ade Siti Rahmawati, Agnia Ramadhan, M. Iqbal Ramadhanti, Fairuz Irdina Rasyidi, Muhammad Gafar Riadi, Rian Sugeng Riany, Meutia Risnawati Risnawati Riyan Hidayat Rizal, Nanda Rizaldi, Marini Putri Rizki Rochmadi, Tri Roehan, Herma Avita Rohmah, Ulya Shofirotur Rohmat, Satria Rizki Rosmiati*, Neni Rosmiati, Neni Rosy Hutami Rosyidah, Dania Meida Rumondasari, Aulia Saidah, Bulan Salsabila Nadhifa, Isad Samsuri, Mahmud Sanulqi, Ihsan sari, ambar wulan Sari, Syafira Permata Sarweswara, Wikrama Selvia, Devi Sela Eka Septiana, Tina Septiawan, Akbar Setiawan, Dadan Setyawan, Danang Aji Sintha Sih Dewanti Sintiya, Siska Siregar, Fauziah Sitepu, Sri Henny Romauli Siti Fauziah Siti Maisaroh Siti Nur Fatimah Siti Nurhaliza Siti Nurhidayah Siti Romlah Sri Rejeki Urip Sri Wahyuni Suci, Nabila Thalita Suherlan, Dimas Sukmadi, Dendi Sukmawati, Euis Sumarni Sumarni Sunawan Sunawan susi yanti Syafril Basri Syahyono, Syahyono Syifa N, Neng Tantri, Anisa Setia Taufik, Tata Muhammad Tiara Amanda Lestari Tri Cahyanto Tri Handayani Amaliah Triana Putri, Dian Utami, Wahyu Lestari Wahyuni, Reni Wijayanti, Ardhina Wilna Iznilillah Wiwin Handoko Yanuar Wicaksono Yudiwanti Wahyu E. Kusumo Yunus, Nur Rohim Yuriska, Yuriska Yusa, Ahmad Martin Zubaidah Amir MZ zulfitra, Zulfitra Zulkifli Ramadhan