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Efektivitas Fotodegradasi Lignin dari Limbah Ampas Sagu (Metroxylon sagu Rottb.) Menggunakan Katalis TiO₂: The Effectiveness of the Photodegradation of Lignin from Sago (Metroxylon sagu Rottb.) Waste Using TiO₂ Catalyst Muh. Natsir; Aden Mula Pratiwi; Thamrin Azis; Nohong; Imran; Wa Ode Harlis; Alimin; La Ode Kadidae; Ruslan; C Bijang; La Ode Abd Kadir; Laily Nurliana
KOVALEN: Jurnal Riset Kimia Vol. 8 No. 3 (2022): December Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2022.v8.i3.16149

Lignin degradation from sago (Metroxylon sagu Rottb.) waste has been carried out using a TiO2 catalyst. This research aims to determine the effectiveness of lignin degradation from sago waste using a TiO2 catalyst. Lignin from sago pulp was isolated using 10% NaOH and characterized using Fourier Transform Infra Red (FTIR) spectroscopy. The results of the characterization using FTIR show that the absorption at wave number 2937.59 cm-1 is the -C-H stretching vibration of the alkane functional groups, the absorption at wave number 2360.87 cm-1 is the vibration of the C≡C triple bond, the wave numbers 1795.73 cm-1 and 1637.56 cm-1 are associated with the stretching of the carbonyl group. The absorption at wave number 1427.32 cm-1 is a C-H vibration connected to an unsaturated bond in an aromatic ring. Absorptions at wave number 1105.21 cm-1, 1128.36 cm-1, 1153.43 cm-1 were the stretching vibration of -C-H on the guaiasil ring, and the absorption at wave number 1022.27 cm-1 was the stretching vibration of C-O-C ether. From this spectrum, it can be seen that lignin is not completely pure because it is probably still mixed with cellulose. The results of the effectiveness test of lignin degradation using a TiO2 catalyst with the help of UV light were able to degrade the lignin isolated by 31.43%, for 3 hours at a lignin concentration of 40 ppm.

Characterization of Methyl Ester Sulfonate (MES) from Mahagony (Swietenia macrophylla King) with Variations in H2SO4 Concentration and Sulfonation Duration Laily Nurliana; La Ode Kadidae; Sunarti Sunarti; Rustam Musta
ALCHEMY Jurnal Penelitian Kimia Vol 17, No 2 (2021): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.17.2.51613.192-201

Methyl ester sulfonate derived from mahogany (Swietenia macrophylla K.) oil has been characterized. The research began by synthesizing mahogany methyl ester (ME) in 4 stages: pressing, degumming, esterification, and transesterification. The next process was synthesizing methyl ester sulfonate (MES) also in four stages: sulfonation, bleaching, neutralization, and drying. The reactant for MES synthesis in this study was H2SO4 with a mole ratio of 1:6 and variations in the concentration of H2SO4 (70%, 75%, 80%, 85%, and 90%) as well as variations in the duration of sulfonation (45, 60, 75, 70, and 105 minutes) to determine the characteristics of the synthesized MES including density, acid number, and emulsion stability. The effect of the combination of treatment variations was analyzed using the two-way ANOVA test and the least significant difference (LSD) test. This research showed that MES from mahogany seed oil from a combination of variations in treatment has a density ranging from 0.91 to 0.97 g/mL where the LSD test at α = 0.05 produces three different MES density groups due to variations in the concentration of H2SO4 namely A (70 % and 75%), B (80% and 85%), and C (90%). The resulting MES acid numbers ranged from 4.69 ‒ 17.74 mgKOH/g sample with three different groups of MES acid numbers due to variations in the concentration of H2SO4, namely A (85 and 90%), B (75% and 80%), and C (70%). The stability of mahogany oil-based MES emulsion ranged from 0.000 ‒ 0.975 and two different MES emulsion stability groups were obtained due to variations in the concentration of H2SO4, namely A (80% and 85%) and B (70%, 75%, and 90%). FTIR spectrophotometer showed the presence of S=O groups at wavenumber 1172 cm-1 and S‒O groups at wavenumbers 972.12 cm-1 and 879.54 cm-1 proved that MES was successfully synthesized.

Chemical Characterization and Antibacterial Activities of Bio-oil from Durian Shell Pyrolysis Mashuni, Mashuni; Kadidae, La Ode; Jahiding, M; Hamid, Fitri Handayani; Kadir, Waris Abdul; Khaeri, Andi Muhammad Naufal
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.37674

Foodborne bacteria cause food spoilage, usually Staphylococcus aureus and Escherichia coli. Thus, synthetic preservatives are employed in food preservation to prevent food spoilage caused by microorganisms. Excessive use of synthetic preservatives can cause disease. Bio-oil has become a natural preservative because of its high phenolic content. However, bio-oil still requires purification because the initial bio-oil (grade 3) still contains carcinogenic compounds that are dangerous for consumption. Therefore, this study aims to determine the components of the bio-oil compound after purification and its effectiveness as an antibacterial. Durian shell (DS) is pyrolyzed in a heating reactor without oxygen at a temperature of 330–600ºC (flow rate 6ºC/minute) with a 2-3 cm material size. Furthermore, bio-oil purification includes stages of filtration using activated zeolite, fractional distillation at 70–200ºC (grade 2), and filtration using activated charcoal (grade 1). Bio-oil purification includes stages of filtration using active zeolite and activated charcoal (grade 2), and fractional distillation at a temperature of 150–200ºC (grade 1). Based on Gas Chromatography-Mass Spectrometry (GC-MS) analysis, grade 2 and grade 1 contain the major compounds 1,4-dimethyl-1h-imidazole and acetic acid. The research showed that bio-oil grades 1 and 2, when used at a 30% concentration, exhibit antibacterial strong effects against Staphylococcus aureus and Escherichia coli. These findings suggest that bio-oil grades 1 and 2 could be valuable natural preservatives.

PKM PENERAPAN TEKNOLOGI PIROLISIS UNTUK PRODUKSI BIOPESTISIDA DARI LIMBAH KULIT KAKAO Mashuni, Mashuni; Jahiding, M; Kadidae, La Ode; Handayani Hamid, Fitri
Science and Technology: Jurnal Pengabdian Masyarakat Vol. 1 No. 2 (2024): Juni
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/scitech.v1i2.33

Penerapan teknologi produksi biopestisida dari limbah kulit buah kakao (KBK) menggunakan metode pirolisis merupakan solusi inovatif dalam mengelola limbah pertanian menjadi produk bernilai tambah yang ramah lingkungan. Penelitian ini bertujuan untuk mengubah limbah KBK menjadi biopestisida melalui proses pirolisis. Tahapan pengabdian ini meluputi, sosialisasi, strategi pemecahan masalah, pengenalan prototipe pengolahan KBK, dan pelatihan. Partisipasi mitra yaitu kelompok tani dan PT. Hasfarm Niaga Nusantara yang dilaksanakan di Desa Ponanggo Jaya Kecamatan Lambandia Kabupaten Kolaka Timur Provinsi Sulawesi Tenggara. Hasil produksi biopestisida KBK menunjukkan kemampuan untuk menghambat pertumbuhan jamur pada benih tanaman kakao serta selama masa penyimpanan 6 hari benih kakao memiliki daya tumbuh sebesar 60%. Hasil evaluasi menunjukkan bahwa pengembangan teknologi pirolisis untuk produksi biopestisida dari limbah KBK memiliki potensi besar untuk memberikan manfaat yang signifikan bagi pertanian dan lingkungan. Diperlukan penelitian lebih lanjut dan kerjasama antara pemerintah, industri, dan petani untuk mengembangkan teknologi ini secara lebih luas dan efektif.

INISIASI PEMBERDAYAAN MASYARAKAT DESA WAUKUNI DALAM PEMBUATAN PUPUK ORGANIK DARI LIMBAH PERTANIAN Usman, Ida; Sudiana, I Nyoman; Kadidae, La Ode; Mukhsar, Mukhsar; Budiman, Herdi Budiman
Jurnal Pepadu Vol 6 No 2 (2025): Jurnal Pepadu
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v6i2.5887

Telah dilaksanakan kegiatan pengabdian kepada masyarakat yang terintegrasi KKN-Tematik Tahun 2024 di Desa Wakuni. Wilayah Desa Waukuni termasuk daerah yang cukup subur, sehingga sebahagian besar penduduknya berprofesi sebagai petani. Hasil survei menunjukkan bahwa petani di Desa Waukuni hanya mengandalkan kesuburan tanah atau berbantuan pupuk sintetis. Tujuan utama dari kegiatan ini adalah memberikan pengetahuan dan pengalaman baru kepada masyarakat bagaimana memanfaatkan limbah-limbah pertanian menjadi pupuk organik sebagai alternatif pengganti pupuk sintetis dan membantu mengembalikan tingkat kesuburan tanah. Program ini diharapkan dapat menarik minat masyarakat untuk membentuk kelompok-kelompok usaha pembuatan pupuk organik, yang secara langsung dapat meningkatkan pendapatan masyarakat. Adapun kegiatan pengabdian pada masyarakat ini meliputi survei lapangan untuk mendata potensi Desa Waukuni, pengumpulan bahan-bahan yang diperlukan, pelatihan pembuatan pupuk organik, dan diseminasi potensi kegiatan pemberdayaan. Dari hasil pelatihan pembuatan pupuk organik dan diseminasi potensi pemberdayaan masyarakat, peserta dari masyarakat memperlihatkan antusiasme yang tinggi dan keinginan yang besar untuk menindaklanjuti kegiatan pengabdian ini.

Pendampingan Program Pengembangan Edu-Ekowisata Mangrove Desa Tanjung Tiram Kabupaten Konawe Selatan Sulawesi Tenggara Jamili Jamili; Ida Usman; La Ode Kadidae; Suriana Suriana; La Ode Adi Parman Rudia; Nur Arfa Yanti
Jurnal Pengabdian UNDIKMA Vol. 4 No. 2 (2023): May
Publisher : LPPM Universitas Pendidikan Mandalika (UNDIKMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jpu.v4i2.6553

The service activity aims to provide an understanding to the youth organization regarding the potential of mangrove ecosystems to be developed as Edu-Ecotourism in Tanjung Tiram Village, North Moramo District, South Konawe Regency, Southeast Sulawesi. The method of implementing this service was carried out education, practice, and mentoring. A questionnaire and data analysis were carried out descriptively to evaluate the increase in understanding of youth organization. The results of this community service activity showed that the understanding of youth organizations in Tanjung Tiram village increased regarding the conservation of the mangrove ecosystem and its potential to be developed as an edu-ecotourism village and in practice-assistance activities, 11 types of mangrove ecosystem constituents were identified in Tanjung Tiram Village. With a good understanding of the community and the high diversity of mangroves, Tanjung Tiram Village could be developed into a mangrove Edu-Ecotourism Village.

INISIASI PEMBERDAYAAN MASYARAKAT DESA WAUKUNI DALAM PEMBUATAN PUPUK ORGANIK DARI LIMBAH PERTANIAN Usman, Ida; Sudiana, I Nyoman; Kadidae, La Ode; Mukhsar, Mukhsar; Budiman, Herdi Budiman
Jurnal Pepadu Vol 6 No 2 (2025): Jurnal Pepadu
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v6i2.5887

Telah dilaksanakan kegiatan pengabdian kepada masyarakat yang terintegrasi KKN-Tematik Tahun 2024 di Desa Wakuni. Wilayah Desa Waukuni termasuk daerah yang cukup subur, sehingga sebahagian besar penduduknya berprofesi sebagai petani. Hasil survei menunjukkan bahwa petani di Desa Waukuni hanya mengandalkan kesuburan tanah atau berbantuan pupuk sintetis. Tujuan utama dari kegiatan ini adalah memberikan pengetahuan dan pengalaman baru kepada masyarakat bagaimana memanfaatkan limbah-limbah pertanian menjadi pupuk organik sebagai alternatif pengganti pupuk sintetis dan membantu mengembalikan tingkat kesuburan tanah. Program ini diharapkan dapat menarik minat masyarakat untuk membentuk kelompok-kelompok usaha pembuatan pupuk organik, yang secara langsung dapat meningkatkan pendapatan masyarakat. Adapun kegiatan pengabdian pada masyarakat ini meliputi survei lapangan untuk mendata potensi Desa Waukuni, pengumpulan bahan-bahan yang diperlukan, pelatihan pembuatan pupuk organik, dan diseminasi potensi kegiatan pemberdayaan. Dari hasil pelatihan pembuatan pupuk organik dan diseminasi potensi pemberdayaan masyarakat, peserta dari masyarakat memperlihatkan antusiasme yang tinggi dan keinginan yang besar untuk menindaklanjuti kegiatan pengabdian ini.

Chemical Characterization and Antibacterial Activities of Bio-oil from Durian Shell Pyrolysis Mashuni, Mashuni; Kadidae, La Ode; Jahiding, M; Hamid, Fitri Handayani; Kadir, Waris Abdul; Khaeri, Andi Muhammad Naufal
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.37674

Foodborne bacteria cause food spoilage, usually Staphylococcus aureus and Escherichia coli. Thus, synthetic preservatives are employed in food preservation to prevent food spoilage caused by microorganisms. Excessive use of synthetic preservatives can cause disease. Bio-oil has become a natural preservative because of its high phenolic content. However, bio-oil still requires purification because the initial bio-oil (grade 3) still contains carcinogenic compounds that are dangerous for consumption. Therefore, this study aims to determine the components of the bio-oil compound after purification and its effectiveness as an antibacterial. Durian shell (DS) is pyrolyzed in a heating reactor without oxygen at a temperature of 330–600ºC (flow rate 6ºC/minute) with a 2-3 cm material size. Furthermore, bio-oil purification includes stages of filtration using activated zeolite, fractional distillation at 70–200ºC (grade 2), and filtration using activated charcoal (grade 1). Bio-oil purification includes stages of filtration using active zeolite and activated charcoal (grade 2), and fractional distillation at a temperature of 150–200ºC (grade 1). Based on Gas Chromatography-Mass Spectrometry (GC-MS) analysis, grade 2 and grade 1 contain the major compounds 1,4-dimethyl-1h-imidazole and acetic acid. The research showed that bio-oil grades 1 and 2, when used at a 30% concentration, exhibit antibacterial strong effects against Staphylococcus aureus and Escherichia coli. These findings suggest that bio-oil grades 1 and 2 could be valuable natural preservatives.

PENERAPAN TEKNOLOGI BUDIDAYA PEPAYA CALIFORNIA DI LAHAN PEKARANGAN DESA ABENGGI KECAMATAN LANDONO KABUPATEN KONAWE SELATAN SULAWESI TENGGARA Jamili, Jamili; Usman, Ida; Yanti, Nur Arfa; Kadidae, La Ode; Muksar, Muksar; Budiman, Herdi; Rudia, La Ode Adi Parman
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 4 (2023): December
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i4.19643

ABSTRAKDesa Abenggi merupakan salah satu desa di kecamatan Landono kabupaten Konawe Selatan yang dahulunya dikenal sebagai sentra pertanian, namun saat ini para petani di desa tersebut beralih menjadi pengrajin batu merah. Perkembangan usaha pembuatan batu merah di desa Abenggi menyebabkan luas lahan pertanian semakin sempit sehingga produktivitas dari sektor pertanian semakin menurun. Kegiatan pengabdian kepada masyarakat terintegrasi KKN-Tematik bertujuan untuk introduksi teknologi budidaya tanaman hortikultura dan memberdayakan masyarakat khususnya pemuda karang taruna untuk meningkatkan pengetahuan dan keterampilan dalam mengelola dan memanfaatkan lahan pekarangan menjadi lahan produktif melalui budidaya pepaya California. Metode yang digunakan adalah partisipasi aktif semua pihak yang terlibat dalam kegiatan ini melalui pelatihan dan pendampingan kepada masyarakat. Kegiatan diawali dengan penyuluhan mengenai teknik budidaya Pepaya Clifornia dan sharing pengalaman dengan kelompok petani lokal serta pelatihan penyiapan bibit unggul dan teknik penanaman pepaya California pada lahan pekarangan. Kegiatan pengabdian yang dilaksanakan dalam bentuk kolaborasi antara dosen dan mahasiswa KKN di desa Abenggi yang dilaksanakan selama satu bulan menunjukkan peningkatan pengetahuan dan kemampuan masyarakat dalam memanfaatkan lahan pekarangan yang tidak terpakai untuk budidaya pepaya California. Kata kunci: budidaya; pepaya california; lahan pekarangan; desa Abenggi ABSTRACTAbenggi Village is one of the villages in Landono subdistrict, South Konawe district, which was previously known as an agricultural center, but now the farmers in the village have turned into red stone craftsmen. The development of the red stone manufacturing business in Abenggi village has caused the area of agricultural land to become increasingly narrow so that the productivity of the agricultural sector continues to decline. The integrated KKN-Thematic community service activity aims to introduce horticultural plant cultivation technology and empower the community, especially youth organizations, to increase their knowledge and skills in managing and utilizing home garden land into productive land through cultivating California papaya. The method used is the active participation of all parties involved in this activity through training and assistance to the community. The activity began with counseling regarding California papaya cultivation techniques and sharing experiences with local farmer groups as well as training in preparing superior seeds and techniques for planting California papaya in home gardens. Service activities carried out in the form of collaboration between lecturers and KKN students in Abenggi village which were carried out for one month showed an increase in community knowledge and ability in utilizing unused home garden land for cultivating Californian papaya. Keywords: abenggi village; californian papaya; cultivating; home garden

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