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Analisis Derajat Deasetilasi Kitosan dari Limbah Cangkang Rajungan dengan Penambahan Variasi NaBH4 dan Suhu Fatin, Ainiyyah; Salsabilla, Aina; Winarto, Adi Putra; Hakim, Muhammad Fahmi
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 20 (2024): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.14257788

Abstract

Indonesia has a large potential for marine products, namely blue swimming crab. In general, only the part of the crab is processed into food, so crabs have the potential to produce shell waste. So that the use of crab shell waste can be made into chitosan which is done using two approaches, namely providing quality standard values and high selling prices. In the manufacture of chitosan consists of 3 stages, namely (1) Deproteination stage using 3.5% NaOH at 80℃; (2) Demineralization step using 1 N HCl at 30℃; (3) Deacetylation step using 60% KOH solution with the addition of NaBH4 (0.50; 0.75; 1 gram) and temperature (100℃, 110℃, 120℃) with a stirring time of 2.5 hours. From the results of the research that has been done, the best degree of deacetylation was obtained when the addition of 0.75 gram NaBH4 was 73.65% at 120℃. The characteristics of chitosan in the yield with the best 4.25% at 100℃ with the addition of 1 gram of NaBH4. The water content with the best is 5.15% at 110℃ with the addition of 0.75 gram NaBH4. And the ash content with the best is 1.747% at 120℃ with the addition of 0.75 gram NaBH4
Analisis Derajat Deasetilasi Kitosan Dari Limbah Cangkang Rajungan Dengan Penambahan Variasi NaBH4 Dan Suhu Fatin, Ainiyyah; Salsabilla, Aina; Winarto, Adi Putra; Hakim, Muhammad Fahmi
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 20 (2024): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.14263826

Abstract

Indonesia has a large potential for marine products, namely blue swimming crab. In general, only the part of the crab is processed into food, so crabs have the potential to produce shell waste. So that the use of crab shell waste can be made into chitosan which is done using two approaches, namely providing quality standard values and high selling prices. In the manufacture of chitosan consists of 3 stages, namely (1) Deproteination stage using 3.5% NaOH at 80℃; (2) Demineralization step using 1 N HCl at 30℃; (3) Deacetylation step using 60% KOH solution with the addition of NaBH4 (0.50; 0.75; 1 gram) and temperature (100℃, 110℃, 120℃) with a stirring time of 2.5 hours. From the results of the research that has been done, the best degree of deacetylation was obtained when the addition of 0.75 gram NaBH4 was 73.65% at 120℃. The characteristics of chitosan in the yield with the best 4.25% at 100℃ with the addition of 1 gram of NaBH4. The water content with the best is 5.15% at 110℃ with the addition of 0.75 gram NaBH4. And the ash content with the best is 1.747% at 120℃ with the addition of 0.75 gram NaBH4.
Pengaruh Variasi Konsentrasi KOH dan Waktu Pengadukan Terhadap Nilai Derajat Deasetilasi dan Karakteristik Kitosan dari Cangkang Rajungan Salsabilla, Aina; Fahmi Hakim, Muhammad; winarto, Adi Putra; Fatin, Ainiyyah
Innovative: Journal Of Social Science Research Vol. 4 No. 1 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i1.8657

Abstract

TPI Pasir Putih, Cilamaya Kulon merupakan salah satu penghasil rajungan (Portunus pelagicus) terbanyak di Karawang. Umumnya, hanya bagian daging rajungan yang dimanfaatkan untuk dikonsumsi, sehingga rajungan dapat menghasilkan banyak limbah pada cangkangnya. Salah satu pemanfaatan dari limbah cangkang rajungan yaitu dapat dijadikan produk kitosan yang memiliki nilai jual tinggi. Tujuan dari penelitian ini adalah untuk mengidentifikasi pengaruh variasi konsentrasi larutan kalium hidroksida (KOH) dengan persentase 50%, 60% dan 70% serta waktu pengadukan selama 1, 2 dan 4 jam pada suhu konstan 110°C terhadap derajat deasetilasi kitosan dan karakteristik kitosan yang memenuhi standar mutu kitosan yang ditetapkan. Nilai derajat deasetilasi kitosan terendah pada konsentrasi larutan KOH 50% dan waktu pengadukan 1 jam sebesar 62,94% sedangkan yang tertinggi pada konsentrasi larutan KOH 70% dan waktu pengadukan 4 jam sebesar 80,46%. Hasil analisis karakteristik kitosan telah memenuhi syarat mutu kitosan SNI No.7949(2013) yaitu kadar air (1,42%-1,99%), kadar abu (1,45%-1,49%) dan derajat deasetilasi (76,25%-80,46%).
Boiler Performance with Variations in Fuel Mix Composition Feeding Winarto, Adi Putra; Sari, Dessy Agustina
TECHNO: JURNAL PENELITIAN Vol 13, No 1 (2024): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v13i1.6897

Abstract

PKS Kertajaya is a subsidiary of PTPN VIII, which focuses on the palm oil industry. a number of main processing and supporting equipment for this factory. One of the key aspects of the production process is the use of the boiler. This equipment produces steam, which is needed by various palm oil production processes and even factory utility areas. Therefore, the research study focused on the quantity of fuel used in producing the steam. The palm oil industry utilizes the solid waste from fresh fruit bunches, namely fibers and shells. The variable variation is in the percentage of the two fuels. From the estimation results using the direct method, it was found that the feeding conditions of 50:50, 60:40, and 70:30% were able to provide an increase in boiler efficiency values along with decreasing operational fuel costs. However, if you compare it with the quantity of fuel that has been applied by the industry, the percentage of 50:50% is the optimum condition, both in terms of boiler efficiency and economic value, which is one level higher than the current condition. This consideration is viewed from the estimation side as well as the amount of carbon content owned. Apart from that, the palm oil industry continues to maintain performance during routine maintenance of boiler equipment. Ingredients other than carbon are able to make short- to long-term contributions to producing steam. PKS Kertajaya merupakan anak perusahaan PTPN VIII yang berfokus di bidang industri kelapa sawit.  Dari sejumlah peralatan utama proses maupun pendukung pabrik ini. Ssalah satu aspek kunci proses produksinya berada pada penggunaan boiler. Peralatan ini menghasilkan uap air yang dibutuhkan ragam proses produksi minyak kelapa sawit bahkan area utilitas pabrik. Oleh karena itu, kajian penelitian difokuskan ke kuantitas bahan bakar yang digunakan dalam memproduksi steam tersebut. Pihak industri kelapa sawit memanfaatkan peran limbah padat dari tandan buah segar, yaitu serabut dan cangkang. Variasi variabel berada pada persentase kedua bahan bakar tersebut. Dari hasil estimasi melalui penggunaan metode langsung didapatkan bahwa kondisi pengumpanan 50:50, 60:40, dan 70:30% mampu memberikan peningkatan nilai efisiensi boiler dengan seiring menurunnya biaya operasional bahan bakar. Akan tetapi, jika membandingkan dengan kuantitas bahan bakar yang telah diterapkan pihak industri maka persentase 50:50% adalah kondisi optimum baik sisi efisiensi boiler dan nilai ekonomi yang lebih tinggi satu tingkat dari kondisi saat ini. Pertimbangan ini ditinjau dari sisi estimasi dan juga jumlah kandungan karbon yang dimiliki. Selain itu, pihak industri kelapa sawit tetap menjaga performa selama terutama pelaksanaan perawatan rutin peralatan boiler. Kandungan selain karbon mampu memberikan kontribusi baik jangka pendek hingga panjang dalam memproduksi uap air. Â