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All Journal Jurnal S1 Agroteknologi Al-Kimia Jurnal Distilasi JMM (Jurnal Masyarakat Mandiri) Jurnal Insan Farmasi Indonesia Jurnal Kaharati JIO: Jurnal Inovasi Olahraga
Ahmad Irawan, Ahmad
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Physics Public Health Social Sciences Other

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Pengaruh pemberian bahan organik terhadap perubahan sifat kimia Andisol, pertumbuhan dan produksi gandum (Triticum eastivum L.) Irawan, Ahmad; Jufri, Yadi; Zuraida, Zuraida
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Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (476.7 KB)

Abstract

The study is look at the effect of various doses of the chemical properties of organic materials Andisol, growth and production of wheat. This study was conducted in March to June 2013 in the village Tunyang, Timang Gajah, Bener Meriah province of Aceh and continued in Soil Chemistry Laboratory Faculty of Agriculture, Unsyiah, Darussalam Banda Aceh. This experiment used a randomized block design (RBD) with 10 treatments and 3 replications. experiments conducted in this study were: control, manure 10 tons ha-1, manure 20 tons ha-1, manure 30 tons ha-1, compost 10 tons ha-1, compost 20 tons ha-1, compost 30 tons ha-1, 10 tons of manure ha-1 + compost 10 tons ha-1, manure 20 tons ha-1+ compost 10 tons ha-1, 20 tons of manure ha-1+ compost 20 tons ha-1. These results indicate that increase of organic material does not change the status of pH, C-organic, N-total and P-total planted wheat Andisol. increase of organic materials can improve status P-available and P-retention in Andisol. Highest result the addition of organic material encountered increase manure 30 tons ha-1.
GREEN SYNTHESIS NANOPARTIKEL GRAPHENE DENGAN AGEN PEREDUKSI URIN MANUSIA DAN APLIKASINYA SEBAGAI ADITIF BIONANOLUBRICANT BERBASIS CPO (CRUDE PALM OIL) Irawan, Ahmad; Robiah, Robiah
Jurnal Distilasi Vol 2, No 2 (2017): Jurnal Distilasi
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jd.v2i2.1201

Abstract

Graphene is a nanomaterial that has been widely applied to various fields because of the uniqueness of the material, therefore this material is very interesting to be developed as an additive in lubricant. This study aims to determine the optimum additive weight ratio and obtain optimum operating conditions in the graphene dispersion process in base oil. This research is divided into 2 stages: preliminary research and main research. The preliminary study aims to transform the chemical structure of crude palm oil (CPO) through a three-stage reaction into a polyol as a base oil. The main research is the process of making bionanolubricant. Graphene is synthesized using a combination technique with a human urine as reducing agent. The formulations are known by varying the weight of the additive and the time of the dispersion. Variation of additive weight was 0% (A1), 0.25% (B1), 0.5% (C1), 1% (D1) while for dispersion time variation ranged from 0 min (A2), 60 min (B2), 90 minutes (C2) and, 120 minutes (D2). Based on the SEM-EDX test results, the SEM image formed graphene and spectrum layers on EDX show that the oxide in graphene has been successfully reduced. Bionanolubricant was tested for quality with 7 parameters. The composition of base oil formula 250 gr and graphene nanoparticles 0.5% w / w is the optimum additive weight ratio for C1 sample code whereas the economical dispersion time is 60 minutes. The result of the viscosity index test is 121,72, its pour point is 10,4oC, flash point equal to 228oC with lubrication capability tested through four ball tester got scar diameter equal to 0,87 mm. This Bionanolubricant belongs to the SAE 250 class and is classified as a GL-4 lubricant based on the quality level of API (American Petroleum Institute) performance test.
Analisis Kepuasan Konsumen Terhadap Atribut Buah Cempedak (Studi Kasus Kabupaten Kapuas, Kabupaten Pulang Pisau, Kabupaten Kotawaringin Barat) Erni Dwi Puji Setyowati; Andanu, Odi; Sundari, Utari Yolla; Irawan, Ahmad
Jurnal Penelitian UPR Vol. 4 No. 1 (2024): Jurnal Penelitian UPR: Kaharati
Publisher : LPPM Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52850/jptupr.v4i1.14469

Abstract

Cempedak (Artocarpus champeden) adalah tumbuhan asli Indonesia yang juga ditemukan di Malaysia dan Papua Nugini. Tanaman ini dapat ditemui di banyak wilayah Indonesia, termasuk Sumatera, Kalimantan, Sulawesi, Maluku, dan Jawa. Meskipun informasi detail tentang produksi cempedak dan nangka di Indonesia terbatas, pada tahun 2014, Badan Pusat Statistik (BPS) mencatat produksi keduanya mencapai 223.253 kuintal. Untuk mengembangkan cempedak lebih lanjut, penting untuk memahami preferensi pelanggan terhadap karakteristik buah ini. Evaluasi tingkat kepuasan pelanggan terhadap atribut buah cempedak juga krusial dalam menentukan area yang perlu ditingkatkan. Penelitian ini bertujuan untuk mengidentifikasi karakteristik pembeli buah cempedak di Kabupaten Kapuas, Pulang Pisau, dan Kotawaringin Barat serta mengevaluasi tingkat kepuasan mereka terhadap atribut buah. Metode deskriptif kualitatif digunakan dengan menggunakan sampel 90 responden dari ketiga kabupaten tersebut, yang dipilih dengan metode accidental sampling. Kesimpulan dari penelitian ini menunjukkan bahwa ada kesamaan dalam karakteristik responden berdasarkan usia dan perbedaan dalam tingkat pendidikan serta pendapatan di antara ketiga kabupaten. Hasil juga menunjukkan bahwa secara umum, kepuasan konsumen terhadap buah cempedak di ketiga kabupaten tersebut dapat dikategorikan sebagai puas. Saran dari penelitian ini termasuk perluasan usaha untuk mempertahankan kualitas atribut seperti rasa, bentuk, dan ukuran buah cempedak oleh petani, serta perlunya pemerintah daerah melakukan penelitian lebih lanjut untuk menghasilkan varietas cempedak yang sesuai dengan harapan konsumen.
ISOLASI BAKTERI ENDOFIT DARI TUMBUHAN KELAKAI (Stenochlaena palustris (Burm) Bedd). Oksal, Efriyana; Ngazizah, Febri Nur; chuchita; Irawan, Ahmad; Pereiz, Zimon
Jurnal Insan Farmasi Indonesia Vol 7 No 3 (2024): Jurnal Insan Farmasi Indonesia
Publisher : Sekolah Tinggi Ilmu Kesehatan ISFI Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36387/8x82wj94

Abstract

Kelakai (Stenochlaena palustris) is a type of medicinal fern used by the Dayak ethnic community in traditional medicine. The diverse bioactivity of kelakai is closely related to its high antioxidant content. The phytochemical compounds found in kelakai, such as phenols, flavonoids, anthocyanins, hydroxycinnamic acid, proanthocyanidins, tannins, alkaloids, saponins, carotenoids, and terpenoids, are believed to be produced by the endophytic microbes present in kelakai. Endophytic bacteria can be isolated from the plant, such as leaves, stems, bark, and roots. This research aims to isolate and identify endophytic bacteria from S. palustris. The method used is direct planting. The samples used are the leaves and stems of S. palustris. The results of the research conducted revealed six isolates of endophytic bacteria found in the leaves and stems, namely D1, D2, B1, B2, B3, and B4, which exhibit different colony morphology on the surface and color, while having similar shapes and edges. The results of the Gram staining test on the endophytic bacteria showed negative results and they are rod-shaped. In this study, endophytic bacteria S. palustris were successfully obtained from leaves and stems, which can be further analyzed for their activity.
Pengaruh Latihan Drill Terhadap Hasil Pukulan Netting Pada Pemainan Bulutangkis Atlet Setia Jaya Badminton Club Irawan, Ahmad
Jurnal Inovasi Olahraga Vol. 2 No. 01 (2023): Februari
Publisher : Pusat Pengembangan Olahraga Universitas Pahlawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53905/jiojurnal.v2i01.3

Abstract

Penelitian ini dilakukan untuk mengetahui ada tidaknya pengaruh latihan drill pukulan netting terhadap hasil netting permainan bulutangkis pada atlet Setia Jaya Badminton Club. Penelitian berjenis eksperimen. Dengan populasi sebanyak 16 orang. Teknik pengambilan sampel dalam penelitian ini menggunakan teknik total sampling,sampel dalam penelitian ini berjumlah 16 orang. Menggunakan tes kemampuan pukulan netting. sebagai teknik pengumpulan data. Teknik analisis data menggunakan rumus uji-t. Berdasarkan hasil penelitian ada pengaruh yang signifikan pada latihan drill terhadap hasil netting pada atlet Setia Jaya Club, hasil tes pengukuran kemampuan pukulan netting dala permainan bulu tangkis pada saat pretest mempunyai rata-rata sebesar 17.56 , kemudian rata-rata hasil posttest meningkat sebesar 23.69, setelah diberikan latihan drill selama 14 kali pertemuan dengan dengan kenaikan persentase sebesar 6.13. Hasil dari T-test dengan nilai thitung 20.532 dan ttabel 2.131 (df 15;0,05) dengan nilai singnifikan 0,000 (2-tailed) lebih kecil dari 0.05, artinya ada pengaruh yang signifikan pada latihan drill terhadap hasil pukulan netting pada permainan bulu tangkis atlet Setia Jaya Badminton Club.
The Potential of Jackfruit Wood as Activated Carbon for Adsorption of Heavy Metal Mercury (Hg) through Pyrolysis Method Zimon Pereiz; Chuchita; Oksal, Efriyana; Maya Sylvani, Miranti; Irawan, Ahmad; Pebriyanto, Yunus; Hairiah, Rusliananur; Eka Jaya Prastiti, Arini; Berlisnora Dasilva, Caroline; Anatasya, Violina; Prisnanda, Risky
Al-Kimia Vol 13 No 1 (2025): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

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Abstract

Water pollution caused by heavy metal mercury is a serious problem today. This study aims to utilise jackfruit wood waste as a natural adsorbent in overcoming the problem of water pollution due to heavy metal mercury. The methods in this research include jackfruit wood preparation, hydrochar synthesis through pyrolysis, hydrochar activation, wastewater preparation, batch adsorbent optimum conditions, and dynamic adsorption process (Fixed-Bed Column). The results showed that the optimum adsorption condition was reached at 0.4 M HCl concentration, pH 3 and 80minutes contact time. The study also showed that the adsorption kinetics followed a second-order pseudo model with a rate constant of 1.712 x 10-2 g/mg.min. The research data also showed conformity with the Langmuir isotherm model, with an adsorption capacity of 63.036 mg/g. The results of this study prove that jackfruit wood waste is effectively used as raw material for making activated carbon for wastewater treatment applications in removing heavy metal mercury.
SOSIALISASI INOVASI BERBAHAN LOKAL JAJANAN RIMBANG SEHAT BERGIZI UNTUK MENCEGAH STUNTING Chuchita, Chuchita; Irawan, Ahmad; Sylvani, Miranti Maya; Hutapea, Sonia Tri Mart Grasella; Pereiz, Zimon; Oksal, Efriyana
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 6 (2025): Desember
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i6.34819

Abstract

Abstrak: Di Indonesia, stunting masih menjadi masalah serius. Salah satu wilayah di Indonesia dengan prevalensi tinggi stunting adalah Provinsi Kalimantan Tengah, khususnya Kecamatan Bukit Batu dengan angka 27,4%. Kecamatan Bukit Batu kaya akan sumber daya alam, salah satunya sayuran lokal bernama terong asam (rimbang), yang kaya vitamin dan dapat membantu mencegah stunting. Namun, pemanfaatannya masih minim karena kurangnya pengetahuan. Tujuan dari pengabdian ini adalah meningkatkan dan memberi pengetahuan dalam rangka pencegahan stunting di kecamatan Bukit Batu. Metode yang dilakukan yaitu dengan cara memberikan sosialisasi terkait inovasi berbahan lokal rimbang sebagai bahan jajanan pencegah stunting, dengan melibatkan seluruh orang tua di posyandu Kecamatan Bukit Batu dengan total peserta 30 dari 32 orang yang terdiri dari ibu yang memiliki balita, ibu hamil, dan kader kesehatan. Hasil evaluasi di lakukan dengan metode pre-test dan post-test yang diisi oleh peserta kegiatan dalam bentuk kuisioner. Hasil evaluasi dari kegiatan ini telah mencapai seluruh indikator keberhasilan yaitu kehadiran peserta ≥80% dari seluruh undangan yang disebar dan pengetahuan peserta mengalami peningkatan berdasarkan hasil pre-test (71,25%) dan post-test (88,28%) yang telah dilakukan sebelumnya.Abstract: In Indonesia, stunting remains a serious problem. One region in Indonesia with a high prevalence of stunting is Central Kalimantan Province, particularly Bukit Batu District, with a rate of 27.4%. Bukit Batu District is rich in natural resources, one of which is a local vegetable called sour eggplant (rimbang), which is rich in vitamins and can help prevent stunting. However, its utilization remains minimal due to a lack of knowledge. The goal of this community service is to increase and provide knowledge for stunting prevention in Bukit Batu District. The method used was to provide outreach regarding the innovation of local ingredients such as rimbang as a stunting-preventing snack. This involved all parents at the Bukit Batu District Integrated Health Post (Posyandu), with a total of 30 out of 32 participants, consisting of mothers with toddlers, pregnant women, and health cadres. The evaluation results were carried out using pre-test and post-test methods which were filled out by activity participants in the form of a questionnaire. The evaluation results of this activity achieved all indicators of success, with attendance exceeding 80% of all invitations distributed, and participants' knowledge increased based on the results of the pre-test (71.25%) and post-test (88.28%).
Co-Authors Anatasya, Violina Berlisnora Dasilva, Caroline Chuchita Chuchita, Chuchita Defilia Anogra Riani DEWI, MIRNA WATI Eka Jaya Prastiti, Arini Erni Dwi Puji Setyowati Hairiah, Rusliananur Hutapea, Sonia Tri Mart Grasella Kalalinggi, Septaria Yolan Maya Sylvani, Miranti Ngazizah, Febri Nur Odi Andanu Oksal, Efriyana Pebriyanto, Yunus Prisnanda, Risky Robiah Robiah Sundari, Utari Yolla Sylvani, Miranti Maya Yadi Jufri Zimon Pereiz Zuraida Zuraida