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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology Biotropika Jurnal Riset Industri Hasil Hutan Konversi Jurnal Fisika FLUX Indonesian Journal of Chemistry Jurnal Abdimas Madani dan Lestari (JAMALI) Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Bioscientiae, Jurnal ilmu ilmu Biologi JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT
Ahmad Budi Junaidi
Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Veterinary Other

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Synthesis of Chitosan-Coated Magnetic Microparticle Using Glutaraldehyde as Crosslinker and PEG as Spacer Arm and Its Application as Adsorbent of Peat Humic Acid Uripto Trisno Santoso; R. Rodiansono; Ahmad Budi Junaidi; Dewi Umaningrum
Journal of Wetlands Environmental Management Vol 3, No 1 (2015): January-June
Publisher : Center for Journal Management and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (627.398 KB) | DOI: 10.20527/jwem.v3i1.5

Abstract

A simple procedure for synthesis of chitosan-coated magnetic microparticle (CMMP) using glutaraldehydeas a cross-linker and polyethylene glycol (PEG) as a spacer arm has been developed. The functionalizedmicroparticle were prepared using an inexpensive, simple, rapid, one-pot process, based on the heating ofchitosan, PEG, and ferrous sulfate mixture at high pH. X-ray diffraction results indicated that the surfacemodifiedFe3O4 microparticle did not lead to phase change unlike the pure Fe3O4. Magnetic chitosanadsorbent has been evaluated for removal of peat humic acid from its aqueous solution.
Characteristics of Chitosan from Chitin Deacetylation Using Different NaOH Concentration and Evaluation of Its Solubility in Liquid Smoke Junaidi, Ahmad Budi; Hikmah, Nurul; Irawati, Utami; Hikmah, Nawwal; Rohman, Taufiqur
Jurnal Sains dan Terapan Kimia Vol 20, No 1 (2026)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v20i1.25118

Abstract

This research aimed to determine the effect of chitosan characteristics produced from the deacetylation of chitin with various concentrations of NaOH on its solubility in liquid smoke. Chitin produced from rajungan shell raw materials was deacetylated using 40% NaOH (K40%), 50% (K50%), and 60% (K60%). The resulting chitosan was then measured of its degree of deacetylation (DD), molecular weight (BM), and solubility in liquid smoke. The results showed that K40% had a DD of 56.99%, K50% had a DD of 72.86% and a BM of 149.1 kDa, also K60% had a DD of 82.87% and a BM of 102.6 kDa. The solubility of chitosan in 10% liquid smoke indicated that K40% was not dissolved, K50% was almost completely dissolved, and K60% was completely dissolved.
INHIBITORY EFFECT OF ULIN WOOD LIQUID SMOKE AND GOGO RICE ENDOPHYTIC FUNGI AGAINST PATHOGEN Pyricularia oryzae Imaningsih, Witiyasti; Mariana; Junaidi, Ahmad Budi; Adventaria, Della
BIOTROPIA Vol. 29 No. 1 (2022): BIOTROPIA Vol. 29 No. 1 April 2022
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2022.29.1.1568

Abstract

Diseases in rice plants (paddy) caused by microorganisms such as Pyricularia oryzae lead to a decrease in rice production. Therefore, it is essential to find out biological agents for protecting paddy and plants in general, against plant diseases. Liquid smoke and endophytic fungi have been known as biological agents to enhance the protection of plants against disease. The purpose of this study was to determine the ability of liquid smoke, endophytic fungi and the concentrations combinations to suppress the growth of P. oryzae. The results showed that liquid smoke concentrations of 0.17% to 1.75% and endophytic fungi filtrate of 2% to 10% showed significant ability against pathogen P. oryzae. However, the combination of liquid smoke and endophytic fungi filtrate at selected concentrations (0.17% liquid smoke combined with 2% endophytic fungi filtrate and 0.34% liquid smoke combined with 2% endophytic fungi filtrate) showed no significant inhibition percentage against  P. oryzae compared to control. In conclusion, this study showed that the respective applications of liquid smoke and endophytic fungi filtrate inhibit the growth of P. oryzae.
Penguatan Literasi Bahaya Zat Adiktif melalui Media Infografis pada Siswa SMA Negeri 2 Banjarbaru: Indonesia Rasjava, Achmad Ramadhanna'il; Junaidi, Ahmad Budi; Abdullah; Fitria, Rizki; Rahmad, Amalia Fateha; Uzma, Ni'matul
Jurnal Abdimas Madani dan Lestari (JAMALI) Volume 08, Issue 1, Maret 2026
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jamali.vol8.iss1.art19

Abstract

High school adolescents are a vulnerable group to exposure to addictive substances due to social and academic pressures, thus requiring literacy-based preventive interventions. This community service program aimed to strengthen students’ literacy regarding the hazards of addictive substances at SMA Negeri 2 Banjarbaru through a chemical literacy-based approach, delivered using educational infographics and participatory learning activities. The program was implemented in a single integrated session consisting of a pre-test, delivery of materials using infographic media accompanied by interactive mini quizzes via Quizizz, a question-and-answer session, and a post-test. A total of 36 students participated in the activity, comprising 12 representatives from each grade level (grades X, XI, and XII). Evaluation results showed an improvement in students’ understanding of addictive substances, as indicated by an increase in the average pre-test score of 66.4 (median 70.0 with score ranged from 30.0 to 100.0) to an average post-test score of 87.5 (median 90.0 with score ranged from 60.0 to 100.0), representing an increase of 21.1 points (31.8%). In addition to quantitative evaluation, brief non-formal interviews with students conducted during and after the activity indicated early signs of changes in students perspectives, particularly in their awareness of adopting healthier and non-addictive coping mechanisms when dealing with academic stress. These findings suggest that infographic-based educational approaches combined with interactive activities are effective in enhancing literacy on the hazards of addictive substances as a foundation for primary prevention among adolescents. To support program sustainability, the educational materials were provided to the school in both printed and digital formats for use in guidance and counseling services as well as school health programs.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Ghofur Abdul Ghofur Abdullah Abdullah Abdullah Abdullah Abdullah Adventaria, Della Ahmad Riadi Amelia Lestari Ari Wahyudi Arini Rahmadani Azidi Irwan Bambang Rusdiarso Bambang Rusdiarso Chatimatun Nisa Citra Ariyanti Dahlena Ariyani Dewi Umaningrum Dewi Umaningrum Doni Rahmat Wicakso Dwi Rasy Mujiyanti Evie Selvia Fatmawati Fatmawati Fitria, Rizki Gunawan Gunawan Hasanah Hasanah Hikmah, Nawwal Ikhsan Kamil Imam Kurniawan Imaningsih, Witiyasti Indriana Kartini Indriana Kartini Mariana Meirina Dwi Surianthy Noe Komari Noer Komari Nurul Hikmah Nurul Zanah Puput Nopitasari Radhina Oktari Rahmad, Amalia Fateha Rahmat Yunus Rahmat Yunus Randy Saputra Rasjava, Achmad Ramadhanna'il Rodiansono Rodiansono Sasi Gendro Sari Sri Hendriani Sunardi Sunardi Sunardi Sunardi sunardi sunardi Sunardi, Ph.D., Sunardi Taufiqur Rohman Uripto Trisno Santoso Uripto Trisno Santoso Utami Irawati Uzma, Ni'matul Witiyasti Imaningsih Wiwin Tyas Istikowati Zulfikurrahman Zulfikurrahman