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All Journal VALENSI CHEMISTRY PROGRESS PROSIDING SEMINAR KIMIA Jurnal Kimia Mulawarman Science and Technology Indonesia Indonesian Journal of Chemistry Jurnal Riset Teknologi Industri JURNAL KIMIA SAINTEK DAN PENDIDIKAN Molekul: Jurnal Ilmiah Kimia Journal of Innovative and Creativity Jurnal Sains dan Kesehatan
Subur P Pasaribu
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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The Utilization of Chitosan from Maggot (Hermetia illucens) Exuvia as Edible Coating for Tomatoes (Lycopersicon esculentum) and Edible Film with the Addition of Honey as an Antibacterial Agent Daniel; Sitorus, Saibun; Pasaribu, Subur P.; Marliana, Eva; Hairani, Rita; Ruga, Ritbey; Purba, Ritson; Saleh, Chairul; Pratiwi, Djihan Ryn; Magdaleni, Agustina Rahayu; Masmur, Indra; Masmur, Hestina
Science and Technology Indonesia Vol. 10 No. 4 (2025): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.4.1232-1241

Abstract

The use of chitosan from maggot (Hermetia illucens) exuvia as an edible coating for tomatoes (Lycopersicon esculentum) and an edible film with honey added as an antibacterial agent was investigated. This study aimed to determine the yield of chitosan from black soldier fly (BSF, Hermetia illucens) maggot exuviae as an edible coating. The chitosan was produced from chitin by deacetylation, and its effect on the weight loss and vitamin C levels of tomatoes for 7 days after treatment was investigated. The chitosan coating was characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy. The antibacterial activity was evaluated using a disk diffusion method. The result showed that by deacetylation, conversion of chitin produced chitosan with a yield of 72% and a deacetylation degree of 75.05%. The chitosan coating significantly affected the weight loss of tomatoes, with the best concentration being 2%. However, the treatment did not significantly affect the decrease in vitamin C levels. The edible chitosan film from BSF maggot exuviae with added honey had a thickness, water content, and water vapor transmission rate of 0.156 mm, 16.9913%, and 30.45 g/m2/24 hours, respectively. SEM characterization showed a relatively dense surface structure, which was slightly smooth and porous. Regarding antibacterial activity, the edible chitosan film inhibited Staphylococcus aureus with an inhibition zone of 10.37 mm; however, Escherichia coli was not inhibited. These results suggest that chitosan from BSF maggot exuviae has potential as an effective edible coating for reducing weight loss in tomatoes despite showing limited antibacterial properties.
Penentuan Total Flavonoid Content (TFC) dan Aktivitas Antioksidan Tumbuhan Insulin (Smallanthus sonchifolius): Determination of Total Flavonoid Content (TFC) and Antioxidant Activity of Insulin Plants (Smallanthus sonchifolius) Erwin, Erwin; Febrianti, Irna; Pasaribu, Subur P.; Aziz, Abdul
Jurnal Sains dan Kesehatan Vol. 6 No. 4 (2024): J. Sains Kes.
Publisher : Fakultas Farmasi, Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25026/jsk.v6i4.2360

Abstract

Smallanthus sonchifolius or known by the local name Insulin or Yacon is a traditional medicinal plant commonly used to treat diabetes. Apart from being a diabetic drug, insulin also has the potential to have antioxidant, anticancer, and anti-melanogenic activities. The aim of the study was to determine total flavonoid content (TFC) and DPPH radical scavenging of Insulin bark and stem wood extracts using UV-Vis spectrometry. The calculation results show that the total flavonoid content equivalents to quercetin in Insulin bark and stem wood extracts is 29.2 and 210.2 mg QE/g extract, respectively, while the DPPH radical scavenging test results are 80.01 and 58.85 ppm, respectively. Both the TFC and the antioxidant properties of the stem wood extract were higher than that of the Insulin bark extract. Keywords:          Smallanthus sonchifolius, insulin, TFC, traditional medicine   Abstrak Smallanthus sonchifolius atau dikenal dengan nama lokal Insulin atau Yacon adalah tanaman obat tradisional yang biasa digunakan untuk pengobati penyakit diabetes. Selain sebagai obat diabetic, Insulin juga berpotensi memiliki aktivitas antioksidan, antikanker, dan anti-melanogenik. Tujuan penelitian adalah untuk menentukan total flavonoid content (TFC) dan peredaman radikal DPPH dari ekstrak kulit dan kayu batang Insulin menggunakan spektrometri UV-Vis. Hasil perhitungan menunjukkan total flavonoid content yang setara dengan quarcetin pada ekstrak kulit dan kayu batang Insulin adalah 29,2 dan 210,2 mg QE /g ekstrak, secara berturut-turut, sedangkan hasil uji peredaman radikal DPPH adalah 80,01 dan 58,85 ppm, secara berturut-turut. Baik TFC maupun sifat antioksidan ekstrak kayu batang lebih tinggi dibandingkan dengan ekstrak kulit batang Insulin. Kata Kunci:         Smallanthus sonchifolius, insulin, TFC, obat tradisional
Gas-Liquid Separator Modified on CV-AAS System for Determination of Total Hg in the Industrial Wastewater Samples Sujito, Sujito; Pasaribu, Subur P; Wirawan, Teguh; Panggabean, Aman Sentosa
Molekul Vol 17 No 3 (2022)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2022.17.3.5039

Abstract

The research about the utilization of modified gas-liquid separators in the determination of Hg ions by using the Cold Vapor Atomic Absorption Spectrophotometer (CV-AAS) method has been done. To optimize the measurement results, several parameters that affect the hydride generator have been studied. Some specified essential parameters are the type and concentration of acid, the level of SnCl2 as a reducing agent, sample volume and the analytical performance such as linearity (r), detection limit (LOD) and quantitation limit (LOQ), repeatability (% RSD), and accuracy have been studied. The results of the research showed the gas-liquid separator modified can be used instead of commercial gas- liquid separators. It was showed by the repeatability value as % RSD < 2/3 CV Horwitz values, the LOD was 0.2530 μg/mL, and the LOQ was 0.8432 μg/mL. The accuracy of this method was good shown by a recovery percentage of 101.6%. Based on the result of this research, the modified of gas-liquid separator can be used for the determination https://www.adenomyosisadviceassociation.org/hysterectomy of Hg ions by using the CV-AAS method with valid results
Sintesis dan Uji Antibakteri Hidrogel Berbasis Kitosan dari Keong Bakau (T. telescopium) Terikat Silang Glutaraldehida dan Tripolifosfat Septarini, Firda Nurlaili; Pasaribu, Subur P; Kartika, Rudi
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i3.4664

Abstract

Hidrogel berbasis kitosan telah berkembang sebagai biomaterial berpotensi tinggi untuk aplikasi medis, khususnya dalam penyembuhan luka. Penelitian ini bertujuan untuk mensintesis dan mengevaluasi hidrogel kitosan dari keong bakau (Telescopium telescopium) dengan crosslinker ganda glutaraldehida dan natrium tripolifosfat. Penelitian ini menggunakan metode eksperimental laboratorium dengan desain quasi-experimental. Populasi terdiri dari lima kombinasi rasio GA:STPP (4:1, 3:2, 1:1, 2:3, dan 1:4), dengan sampel berjumlah lima hidrogel diuji secara duplo menggunakan purposive sampling. Instrumen penelitian mencakup stopwatch untuk pengukuran gelling time dan jangka sorong digital untuk diameter zona hambat. Teknik analisis data menggunakan statistik deskriptif dan analisis komparatif dengan kategorisasi berdasarkan kriteria Valgas. Hasil penelitian menunjukkan bahwa rasio GA:STPP 1:4 dan 2:3 menghasilkan zona hambat sedang (6-8 mm) terhadap Staphylococcus aureus dan Escherichia coli, sementara peningkatan STPP mempercepat waktu gelasi dari 330 menjadi 55 menit. Kesimpulannya, hidrogel kitosan dengan sistem dual crosslinking GA-STPP berpotensi sebagai material plester luka antibakteri dengan keseimbangan optimal antara sifat mekanik, daya serap, dan aktivitas antimikroba untuk aplikasi medis berkelanjutan
Co-Authors Abdul Aziz Ade R. Fajaryantie Aman S. Panggabean Aman Sentosa Panggabean Andi Fatmawati Padri Hasanah Anggun Ridha Avitri Anggun Ridha Avitri Anwar, Adliah Arie Novadiana Arie Novadiana, Arie Az-zahraa, Mutiara Nur Bagus Muliawan Bohari Bohari Bohari Bohari Bonita Tahir Buchari Buchari Chairul Saleh Chairul Saleh Daniel Daniel Daniel Daniel T Daniel T, Daniel Djihan Ryn Pratiwi, Djihan Ryn Erwin - Erwin - Erwin Erwin Erwin Erwin Eva Marliana, Eva Fadilah Ramadhani Fahmi, Miraz’hul Farida Kristiana Febrianti, Irna Hairani, Rita Hairus Abdullah Hardy Shuwanto Ika Y. L. Sari Indra Masmur Irna Febrianti Jamaran Kaban Jenni Lie Josephine Josephine, Josephine Juntia Kirana Pratiwi Kasmirul Ramlan Sinaga Lianasari, Ika Yekti M. Bachri Amran Magdaleni, Agustina Rahayu Margaretta D. R. N. S Masmur, Hestina Mayang, Julia Agustin Mimpin Ginting Muhammad Robiansyah Nanang Tri Widodo Ningrum, Tika Setia Noviyanti Y Noviyanti Y, Noviyanti Nur, Nana Septiana Nurhasanah Nurhasanah Oktavia, Dwina Putri Putri Istiyanti Putri Istiyanti, Putri Putri, Amelia Rachmat, A. Khafifah Dwi Rico Ramadhan, Rico Ritson Purba, Ritson Rohmat Hidayat Rohmat Hidayat Rudi Kartika, Rudi Ruga, Ritbey Rumengan, Nur Khamillah Saibun Sitorus Septarini, Firda Nurlaili Shintia Alifah R Sujito Sujito Teguh Wirawan, Teguh Wahidatul Nuriah Winni Astuti Wirdhaningsih Wirdhaningsih Yusuf, Irfan Maulana Zia Rahmana Putra