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All Journal Jurnal Pengabdian Kepada Masyarakat MEMBANGUN NEGERI Amalee: Indonesian Journal of Community Research & Engagement IJCR (Indonesian Journal of Chemical Research)
Anggelinus Nadut
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Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology Public Health Social Sciences Other

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Pelatihan Pembuatan Keripik Singkong Dua Model Kepada Pemuda Desa Atakore Kecamatan Atadei Kabupaten Lembata dengan Memanfaatkan Uap Panas Bumi Karun Tukan, Gerardus Diri; Maximus Markus Taek; Anggelinus Nadut; Cerry Julianus Pana Tukan; Agustina Emiliana Sawo; Virji Emanuela Lema Tukan
Jurnal Pengabdian Kepada Masyarakat MEMBANGUN NEGERI Vol. 8 No. 1 (2024): Jurnal Pengabdian Pada Masyarakat Membangun Negeri
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35326/pkm.v8i1.4904

Abstract

Desa Atakore, yang terletak di Kecamatan Atadei, Kabupaten Lembata, memiliki potensi alam panas bumi yang dikenal sebagai "Dapur Alam Karun". Masyarakat Desa Atakore dan desa-desa sekitarnya telah memanfaatkan potensi ini sejak lama untuk mengukus makanan seperti jagung muda, singkong, dan kacang tanah dalam jumlah terbatas untuk dikonsumsi sendiri. Setelah dikukus dalam jumlah besar, tidak tahan simpan sehingga menjadi makanan ternak. Melihat potensi yang belum dimanfaatkan, pemuda desa Atakore dilatih untuk membuat keripik singkong dua model. Ini dilakukan agar produk yang dihasilkan dapat tahan simpan dan dapat dipasarkan secara luas. Bahan yang digunakan yaitu singkong mentah sedangkan peralatan yaitu pisau, parut manual, piring stanless stell dan karung plastik. Keripik singkong model A yakni dari singkong kukusan di dalam lubang panas bumi yang kemudian diiris tipis dan dijemur hingga kering. Keripik kering digoreng dan diberi perasa. Keripik singkong model B yaitu dari singkong segar yang diparut kemudian ditempelkan pada bagian dalam piring stanless stell dan dikukus di permukaan lubang dapur alam hingga menjadi masak, kemudian dikeringkan dan digoerng serta diberi perasa. Hasil kegiatan yaitu dihasilkannya keripik model A dan model B. Para peserta kegiatan menyatakan memperoleh pengetahuan baru tentang inovasi memanfaatkan potensi panas bumi Karun untuk menghasilkan produk yang dapat bernilai bisnis, dan tidak hanya untuk konsumsi sendiri atau sebagai makanan ternak
Elimination Of Manganese Interference With EDTA Masking In Determination of Nickel and Lead In Pyrolusite Using Atomic Absorption Spectrophotometry Landi Pote, Lodowik; Anggelinus Nadut
INDONESIAN JOURNAL OF CHEMICAL RESEARCH Vol. 8 No. 2 (2023): Volume 8, ISSUE 2,2023
Publisher : Chemistry Department, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol8.iss2.art4

Abstract

ABSTRACT Research has been carried out on the elimination of manganese interference with EDTA masking in the determination of nickel and lead in pyrolusite using Atomic Absorption Spectrophotometry (AAS) with an air-acetylene flame. Dissolution of pyrolusite samples was carried out by wet digestion using aqueous regia and HF solutions with a ratio of 3:4 (v/v). Interference studies were carried out on the absorbance of nickel and lead with the addition of manganese with varying concentrations of 100-5000 μg/mL measured at a wavelength of 232.0 nm and a gap width of 0.2 nm for nickel and a wavelength of 283.3 nm and a gap width of 0.7 nm for lead. The analysis results show that manganese at a concentration of 100-5000 μg/mL can interfere with the absorbance of nickel and lead, where the absorbance of nickel and lead increases. Recovery results (Recovery) of nickel, lead and manganese with masking 0.10 M EDTA and extracting nickel, lead and manganese into chloroform with sodium diethyl dithiocarbamate complexing at pH 2 obtained nickel (85.39%), lead (92.63%) and manganese (0.00%). nickel and lead pyrolusite samples before extraction with an average nickel and lead content of 1817.82 ± 9.42 μg/g and 122.81 ± 7.60 μg/g. The nickel and lead content after manganese interference was removed by EDTA 0 masking .1 M at pH 2 and complexed with DDC in chloroform obtained an average content of 1571.32 ± 7.54 μg/g for nickel and 87.65 ± 7.53 μg for lead. Key words: Atomic Absorption Spectrophotometry, Interference, masking EDTA, Extraction, Nickel and Lead.
Kinetic and Optimization Study of Green Extraction of Bioactives from Anredera Cordifolia Leaves Latumakulita, Gertreda; Lodowik Landi Pote; Anggelinus Nadut; Juliano M.P. Umbu Jima Kadebu; Amandha V.D. Tukan
Amalee: Indonesian Journal of Community Research and Engagement Vol. 6 No. 2 (2025): Amalee: Indonesian Journal of Community Research and Engagement
Publisher : LP2M INSURI Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/amalee.v6i2.8119

Abstract

The sustainable extraction of bioactive compounds from medicinal plants supports environmentally responsible practices in the pharmaceutical and nutraceutical industries. This study investigates the extraction behavior of Anredera cordifolia leaves using green solvents, with a focus on process optimization and kinetic modeling. A factorial design was used to evaluate the effects of temperature (25–60°C), solvent type (ethanol, methanol, water), pH (4, 7, 9), and time (10–90 minutes). Total phenolic content (TPC) and antioxidant activity were measured via spectrophotometry. Kinetic analysis revealed that the pseudo-second-order model provided the best fit to the data (R² > 0.98), indicating chemisorption as the dominant mechanism. Response Surface Methodology (RSM) identified optimal conditions at 59°C, 70% ethanol, pH 7, and 65 minutes, yielding 213.2 mg GAE/g DW TPC and 91.8% antioxidant activity. Compared to conventional methods, this approach improved yield by 21% and reduced solvent use by 30%. These results demonstrate the value of combining kinetic modeling with statistical optimization to create efficient, scalable, and low-impact extraction protocols. Importantly, the findings offer practical relevance for advancing Indonesia’s herbal industry and supporting the development of sustainable biotechnology in tropical regions.
Co-Authors Agustina Emiliana Sawo Amandha V.D. Tukan Cerry Julianus Pana Tukan Gerardus Diri Tukan Gertreda Latumakulita Juliano M.P. Umbu Jima Kadebu Landi Pote, Lodowik Lodowik Landi Pote Maximus Markus Taek Virji Emanuela Lema Tukan