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Arief Adhiksana
Politeknik Negeri Samarinda
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EFFECT OF MICROWAVE IRRADIATION TIME TO DEACETYLATION PROCESS OF CHITIN FROM SHRIMP SHELLS Arief Adhiksana; Wahyudi Wahyudi; Zainal Arifin; Muh Irwan
Jurnal Kimia Riset Vol. 8 No. 1 (2023): June
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v8i1.40222

Abstract

Microwaves have been used in various organic synthesis applications. The use of microwaves provides many advantages, including relatively short start-up and heating times, energy efficiency and process costs, easy and precise process control, selective heating, better final product quality, and improved dry material quality. Microwaves were used in this study to convert chitin into chitosan and to determine the effect of deacetylation time on the degree of deacetylation of chitosan, which was in accordance with the Indonesian National Standard (SNI 7949:2013). The chitin deacetylation process was carried out by varying the heating time to 5, 7, 11, and 15 minutes with a power of 350 W. Two grams of chitin were mixed with 40 mL of 70% NaOH solution in a beaker. The mixture was put in a microwave at a constant temperature of 70 °C. Chitosan was washed until neutral and then dried in an oven. The degree of deacetylation (DD) was analyzed using Fourier Transform Infrared (FTIR) spectroscopy. The results showed that A deacetylation degree of 79.96% was achieved at a reaction time of 15 min. The water content of chitosan was determined to be 9.15%.
Pelatihan Pengolahan Hasil Pirolisis dari Limbah Plastik Menjadi Bahan Bakar Minyak di Kelurahan Bukuan: Training on the Processing of Pyrolysis Products from Plastic Waste into Fuel Oil in Bukuan Ramli Thahir; Alwathan; Abdul Halim; Arief Adhiksana; Syahrir Jalil; Dyah Kusrihandayani; Abdul Rahman; Andari Awalia; Emy Agustina; Imam Cahyo Wicaksono; Muamar
Jurnal ETAM Vol. 3 No. 2 (2023): OCTOBER
Publisher : Politeknik Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46964/etam.v3i2.574

Abstract

Tujuan kegiatan ini adalah untuk memperkenalkan Pengabdian Penerapan Teknologi Tepat Guna (PPTTG) pengolah sampah plastik menjadi bahan bakar alternative dengan metode pirolisis. Produk yang diperoleh dapat dimanfaatkan sebagai bahan bakar alternative penyulingan minyak atsiri sehingga mempunyai nilai ekonomi. Pelatihan ini bekerja sama dengan Posyantek Patra Maju di Kelurahan Bukuan, Kecamatan Palaran Kota Samarinda. Target luaran yang diharapkan antara lain terbentuknya seorang kader baru yang peduli terhadap lingkungan dan mampu mengajak para masyarakat untuk dapat memanfaatkan sampah plastik tersebut, sehingga kesejahteraan keluarga dapat ditingkatkan. Hasil dari program pengabdian masyarakat yang telah dilakukan ini adalah sebagai berikut: aspek penerapan iptek produk pengolahan sampah plastik dipandang sangat efektif untuk membangun kepedulian masyarakat untuk senantiasa menjaga lingkungan, salah satu usahanya yakni pemanfaatan sampah plastik. Aspek manfaat yang dihasilkan dari program ini sangat besar yaitu meningkatkan kesadaran masyarakat untuk menjaga lingkungan agar bersih bebas sampah plastik, meningkatnya pengetahuan dan keterampilan masyarakat bidang pengolahan limbah sampah plastik yang sangat berdampak negatif menjadi bahan bakar alternative yang sangat bermanfaat serta menumbuhkan motivasi berwirausaha khususnya Posyantek Patra Maju, Kelurahan Bukuan, Kecamatan Palaran.
Analisa Kandungan Proksimat Biobriket Berbahan Baku Limbah Cangkang Sawit Di Kabupaten Paser Kalimantan Timur Vegatama, Meita Rezki; Megawati, Eka; Yuniarti, Yuniarti; Adhiksana, Arief
Jurnal Ilmiah Ecosystem Vol. 24 No. 1 (2024): Ecosystem Vol. 24 No 1, Januari - April Tahun 2024
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35965/eco.v24i1.4223

Abstract

Kebutuhan energi dalam bentuk bahan bakar di Indonesia saat ini terus meningkat seiring dengan terus bertambahnya kebutuhan tidak hanya di rumah tangga namun juga di dunia Industri. Kebutuhan bahan bakar ini tidak hanya pada bahan bakar minyak dan gas namun juga bahan bakar padat. Penelitian ini bertujuan untuk mengetahui analisa proksimat biobriket berbahan baku cangkang sawit yang ada di Kalimantan Timur. Metode yang digunakan dalam penelitian ini adalah penelitian eksperimen dengan variasi konsentrasi perekat yaitu 10% dan 5% dari bahan baku. Teknik analisis data kuantitif digunakan dalam penelitian ini, yaitu mengolah hasil penelitian yang didapat dan menginterpretasikan dalam bentuk angka dan grafik dari hasil penelitian yang diperoleh. Adapaun hasil yang diperoleh dari penelitian ini adalah terpenuhinya nilai kalor sesuai standar SNI dari kedua sampel yang digunakan yaitu 5102,07 kal/g pada sampel A1 dan pada sampel A2 sebesar 5329,84 kal/g. The need for energy in the form of fuel in Indonesia is currently continuing to increase along with the increasing demand not only in households but also in the industrial world. This fuel requirement is not only oil and gas but also solid fuel. This research aims to determine the proximate analysis of biobriquettes made from palm kernel shells in East Kalimantan. The method used in this research is experimental research with variations in adhesive concentration, namely 10% and 5% of the raw material. Quantitative data analysis techniques are used in this research, namely processing the research results obtained and interpreting the research results obtained in the form of numbers and graphs. The results obtained from this research are that the calorific value according to SNI standards for the two samples used is 5102.07 cal/g in sample A1 and in sample A2 it is 5329.84 cal/g
PENGARUH WAKTU DAN TEMPERATUR HIDROLISIS DALAM PROSES SINTESIS FURFURAL DARI SEKAM PADI DENGAN MENGGUNAKAN METODE HIDROLISIS DAN DEHIDRASI Cindi Amborowati; Uni Adriani; Indah Lukyta Aditya; Hanifati Feviasari; Tidar Kumala Hastin; Arief Adhiksana
Journal of Research and Technology Vol. 2 No. 2 (2016): JRT Volume 2 No 2 Des 2016
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (109.415 KB) | DOI: 10.55732/jrt.v2i2.227

Abstract

Rice fields in East Kalimantan is one of productive land. It looks from many piles of rice husk waste in rice milling. The rice husk waste has not been used much, so this research used the rice husk waste as raw material of furfural manufacturing. This research has three stages, there are raw material preparation, hydrolysis, and product analysis. At the preparation stage, rice husk is diminished to 100 mesh, then dried in oven. Hydrolysis process used sulfuric acid 1% as catalyst with the variation times were 10, 40, 70, 100, 130 (minutes) and temperature are 30, 50, 70, 90, 105 (°C). Then hydrolysis result was filtered and the filtrate was quantitatively analyzed by volumetric method. Highest result of time variation obtained was at 130 minutes with furfural concentration as much 8,182 mol/L, while highest result of temperature variation obtained was at 105 °C with furfural concentration as much 10,741 mol/L. Keywords: Sulfuric Acid, Furfural, Hydrolysis, Rice Husk.
PERBANDINGAN METODE KONVENSIONAL EKSTRAKSI PEKTIN DARI KULIT BUAH PISANG DENGAN METODE ULTRASONIK Adhiksana, Arief
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.276

Abstract

The Banana is the most widely produced fruit in Indonesia with waste of banana peel about 1/3 of the fruit. If the banana peel is not utilized in large quantities it will cause environmental problems and is a waste of resources because the waste can still be utilized. The Banana peel contains a variety of compounds such as pectin 10-21%. Based on its content, banana peels have potential as a source of pectin. Pectin can be utilized in various industries of making jelly, jam, gelling, thickener, stabilizer and emulsifier. The purpose of this study was to find the influence of ultrasonic and mass on pectin yield. This research was conducted by using ultrasonic method extraction using 0.05 N HCl solvent of 400 mL and extraction temperature of 60oC. variation of mass in this research are 5, 10, 20, 30 and 40 grams. The highest yield obtained in ultrasonic method is 20.0008 gram with yield of 25,59%. The conventional method only can reach 18,3%. Keywords: Conventional, Banana peel skin, Ultrasound, Yield of pectin.
PENGARUH JUMLAH PELARUT PADA PROSES EKSTRAKSI MINYAK KAYU CENGKEH MENGGUNAKAN MICROWAVE Adhiksana, Arief; Kusyanto
Journal of Research and Technology Vol. 1 No. 1 (2015): JRT Volume 1 No 1 Des 2015
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v1i1.328

Abstract

Clove oil is usually produced from the leaves and flowers, while the twigs cloves actually have potential to be exploited. One of the latest methods that can be used is the microwave assisted extraction. The advantages of microwaves is its ability to deliver energy directly to all material, so it can save time compared to conventional extraction methods. This research aims to study the effect of solvents on the extraction using microwaves. The solvent is water because the polar so very good at absorbing microwave. The variables studied were the weight (75-150 grams) and volume of solvent (400-500 ml) , while the microwave power of 264 W. The choice of wood clove oil yield was obtained of 3.89 % on the amount of solvent to 500 ml with weight is 150 grams.
EKSTRAKSI MINYAK ATSIRI LENGKUAS MERAH (ALPINIA PURPURATA) BERBANTUKAN GELOMBANG MIKRO: PENGARUH PERBANDINGAN BAHAN DAN PELARUT Adhiksana, Arief; Linthin, Agnesia Pulung; Wahyudi, Wahyudi; Rahayu, Ibnu Eka; Nadir, Mardhiyah; Irwan, Muh; Thahir, Ramli
Jurnal Teknik Kimia Vol 18, No 2 (2024): Jurnal Teknik Kimia
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v18i2.4419

Abstract

Minyak atsiri merupakan hasil ekstraksi alami tumbuhan yang dapat berasal dari berbagai bagianbagian tumbuhan. Salah satu tanaman penghasil minyak atsiri yaitu lengkuas merah. Lengkuas merah mengandung minyak atsiri yang terkandung dalam rimpang atau akarnya. Penelitian ini bertujuan untuk mengetahui pengaruh rasio bahan dengan pelarut air terhadap hasil rendemen minyak atsiri lengkuas merah dengan menggunakan metode ekstraksi microwave assisted extraction (MAE). Metode MAE memiliki kelebihan dibandingkan konvensional dalam mempercepat proses dan meningkatkan rendemen. Proses ekstraksi menggunakan 100 gram rimpang lengkuas merah kering yang ditambahkan pelarut air dengan variasi rasio bahan dengan pelarut 1:6, 1:7, 1:8, 1:9 dan 1:10 lalu diekstraksi selama 1 jam dengan daya microwave sebesar 180 Watt. Hasil ekstraksi minyak atsiri yang diperoleh dianalisa rendemen, berat jenis dan indeks biasnya. Hasil terbaik diperoleh pada variasi rasio bahan dengan pelarut air 1:9 yaitu rendemen minyak atsiri sebesar 0,3201%, berat jenis sebesar 0,9289 g/mL dan indeks bias sebesar 1,525. Hasil analisa GC-MS menunjukkan 15 senyawa kimia yang terkandung dalam minyak atsiri lengkuas merah dengan senyawa dominan antara lain metilcinnamate (68,13%), beta-granial (7,79%) dan eucalyptol (5,44%). DOI: https://doi.org/10.33005/jurnal_tekkim.v18i2.4419
Absorption Time and Temperature Effects on The Physical Chemical Properties of Refined Used Cooking Oil Using Bentonite and Carbon Bagasse Adsorbents: Pengaruh Temperature dan Waktu Absorpsi Terhadap Properti Fisik dan Kimia dari Minyak Goreng Bekas yang Dimurnikan Menggunakan Adsorben Bentonit dan Karbon Ampas Tebu Adhiksana, Arief; Febriyana, Qobid; Wahyudi, Wahyudi; Irwan, Muhammad; Tahir, Ramli; Fitriyana, Fitriyana; Kusyanto, Kusyanto; Oko, Syarifuddin
Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Vol. 8 No. 1 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rbaet.2024.008.01.01

Abstract

Bentonite and carbon bagasse adsorbents are used to study the effects of temperature and absorption time on the physico-chemical properties of refined used cooking oil. Any extended use of outdated cooking oil will have an impact on the body's health since it causes fat cells to accumulate in various vital organs. Used cooking oil can be cleaned by using adsorbents like bentonite, bagasse, and activated carbon. This study investigated the effects of temperature and adsorption period on the purification results of used cooking oil using activated carbon adsorbents comprised of bagasse and bentonite. In this study, a factorial group randomised design was used. First, there is a 1:1 adsorbent to substrate ratio. Secondly, there are four adsorption temperature levels: 30°C, 60°C, 90°C, and 120°C. The third factor is adsorption time, which are: 30, 60, 90, and 120 minutes. Counting the quantity of acids, peroxides, and free fatty acids was one method of data analysis. The best results are obtained when used cooking oil is refined using activated carbon, bagasse, and bentonite at 120°C for 90 minutes of adsorption. The result is an acid number of 0.913, a peroxide number of 2.532, and a free fatty acid content of 0.459%.
Effect of Mass Variation of Pepper Leaves on Essential Oil Extraction Via Microwave Assisted Extraction (MAE): Pengaruh Variasi Massa Daun Lada Pada Proses Ekstraksi Minyak Atsiri Via Microwave-Assisted Extraction (MAE) Hamzah Fansuri; Adhiksana, Arief
Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Vol. 8 No. 2 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rbaet.2024.008.02.06

Abstract

Microwave-Assisted Extraction (MAE) is one of the modern technologies that offer advantages in terms of time and efficiency compared to conventional methods. However, few studies still examine the effect of mass variation on the yield of essential oil produced through the MAE method. This study aims to evaluate the effect of variation in the mass of pepper leaves on the yield of essential oil obtained by the MAE method. This study also aims to determine the optimum mass that gives the highest yield. The extraction was carried out at a microwave power of 600 Watts, a temperature of 105 ºC for 2 hours, using water as a solvent for various pepper leaf masses. The effect of material mass variation on essential oil yield was analyzed and compared. The results showed that the essential oils obtained had a specific gravity of 0.8717, a refractive index of 1.485 Brix, and an acid number of 0.9211 mg/g, respectively. Furthermore, the results also obtained the optimum mass of pepper leaf material at 300 grams with a yield of 0.27%. We believe this study can be a reference for selecting the best mass of material from pepper leaves for essential oil production for further research.
PENGARUH WAKTU EKSTRAKSI DAN KECEPATAN PENGADUKAN TERHADAP PEMBUATAN NANOKALSIUM OKSIDA CANGKANG KERANG DARAH Kurnyawaty, Noorma; Adhyasta, Monica Putri; Kusyanto, Kusyanto; Adhiksana, Arief
Jurnal Teknik Kimia Vol 19, No 1 (2024): Jurnal Teknik Kimia (JUTEKK) Vol.19, No.1, 2024
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v19i1.4811

Abstract

Teknologi nano adalah suatu desain, karakterisasi, produksi dan penerapan struktur, perangkat dan sistem dengan mengontrol bentuk dan ukuran pada skala nanometer. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh waktu ekstraksi serta kecepatan pengadukan terhadap pembuatan nanokalsium oksida dari cangkang kerang darah yang meliputi analisa kadar air, yield, analisa kalsium serta analisa ukuran partikel. Proses pembuatan nanokalsium oksida ini dilakukan dengan menggunakan metode presipitasi dengan mereaksikan bubuk cangkang kerang darah dengan HCl konsentrasi 1 N selama waktu ekstraksi 1 jam, 1,5 jam, 2 jam, 2,5 jam dan 3 jam. Hasil reaksi kemudian di presipitasi menggunakan NaOH 3 N sebanyak 40 ml lalu diaduk dengan kecepatan 125 rpm dan 250 rpm. Hasil analisa FTIR menunjukkan bahwa CaO terbentuk pada kedua produk dengan bilangan gelombang 520 cm-1. Waktu ekstraksi dan kecepatan pengadukan optimal pada penelitian ini yaitu 1 jam dan 250 rpm dengan nilai yield yang dihasilkan sebesar 13,1691 % serta ukuran partikel analisa SEM yang dihasilkan sebesar 313,25 nm.
Co-Authors Abdul Halim Abdul Rahman Adhyasta, Monica Putri Aditya, Indah Lukyta Adriani, Uni Ali, Sudirman Alwathan Amborowati, Cindi Andari Awalia Andi Jumardi Andriani, Rina Ayu Chandra Kartika Fitri Cantika Nawang Wulan Cindi Amborowati Cindi Amborowati Dyah Kusrihandayani Emy Agustina Febriyana, Qobid Feviasari, Hanifati Fitriyana Fitriyana, Fitriyana Hamzah Fansuri Hanifati Feviasari Hanifati Feviasari Hastin, Tidar Kumala Hayati, Nuria Imam Cahyo Wicaksono Indah Lukyta Aditya Indah Lukyta Aditya Irwan Irwan Irwan, Muh karmila karmila Kurnyawaty, Noorma Kusyanto Kusyanto Linthin, Agnesia Pulung Marinda Rahim Medya Ayunda Fitri Megawati, Eka Mina Indriani Muamar Muh. Irwan Nadir, Mardhiyah Nurul Hidayatul Islamiyah Nurwijayanti Oko, Syarifuddin Rahayu, Ibnu Eka Ramli Thahir Regiyana, Yuan Rina Andriani Rohima Sera Afifah Surahman Surahman Syahrir Jalil Tahir, Ramli Tidar Kumala Hastin Tidar Kumala Hastin Uni Adriani Uni Adriani Vegatama, Meita Rezki Vini Kumara Lalita Siniwi Vini Kumara Lalita Siniwi Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi, Wahyudi Yuniarti Yuniarti Zainal Arifin