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All Journal Jurnal IPTEK Jurnal Kimia Riset Journal of Research and Technology Jurnal Chemurgy I-Com : Indonesian Community Journal Jurnal Teknik Kimia dan Lingkungan Journal of Science and Social Development

Medya Ayunda Fitri

Universitas Nahdlatul Ulama Sidoarjo

Author-ID : 757403

Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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Effect of Catalysts H2SO4 8% and Baggase Ratio on Yield of Furfural with Hydrolysis Method Using Microwaves Arief Adhiksana; Ayu Chandra Kartika Fitri; Vini Kumara Lalita Siniwi; Medya Ayunda Fitri
Jurnal Teknik Kimia dan Lingkungan Vol. 6 No. 1 (2022): April 2022
Publisher : Politeknik Negeri Malang

Ampas tebu mengandung pentosan sebesar 12,7%. Kandungan pentosan yang cukup tinggi dalam ampas tebu dapat digunakan sebagai bahan baku pembuatan furfural melalui proses hidrolisis. Penelitian ini bertujuan untuk menentukan pengaruh rasio ampas tebu dan katalis H2SO4 terhadap yield furfural yang didapat dari proses hidrolisis menggunakan microwave. Ampas tebu ditambahkan dengan H2SO4 8% sebagai katalisator dengan variasi rasio ampas tebu dan katalisator H2SO4 yaitu 1:20, 1:30, 1:40, 1:50, dan 1:60 pada temperatur microwave 100oC dan waktu reaksi 75 menit. Sampel dianalisa secara kualitatif dengan uji warna menggunakan anilin- asetat sebagai pereaksi. Setelah anilin-asetat ditambahkan ke sampel, warna sampel berubah dari kuning cerah menjadi merah sebagai tanda sampel mengandung furfural. Furfural yang dihasilkan dianalisa untuk mengetahui yield dari furfural dengan menggunakan Gas Chromatography (GC). Hasil penelitian menunjukkan yield furfural terbaik pada rasio ampas tebu dan katalisator H2SO4 1:30 yakni sebesar 0,28%. The sugar cane bagasse contains 12.7% pentosan. The relatively high pentosan content in the sugar cane bagasse can be used as the raw material of furfural production by utilizing the hydrolysis process. This research aims to determine the effects of ratio variations of bagasse and H2SO4 catalyst on the yield of furfural obtained from the hydrolysis process using a microwave. The sugar cane bagasse was added with H2SO4 8% as catalyst with a variations ratio of sugar cane bagasse and H2SO4 catalyst that is 1:20, 1:30, 1:40, 1:50, and 1:60 in a microwave with the reaction temperature of 100oC and reaction time of 75 minutes. The sample was analyzed qualitatively with a color test by using aniline-acetic as the reactant. After the aniline-acetic was added to the sample, the color of the sample changed from bright yellow to red as a sign that the sample contains furfural. The obtained furfural was analyzed to find out the yield of furfural by using Gas Chromatography (GC). The research product showed that the best yield of furfural on the ratio of bagasse and H2SO4 catalyst of 1:30 is 0.28%.

Penggunaan Tanah Vertisol Sebagai Bahan Baku Pembuatan Silika Medya Ayunda Fitri; Farikha Alfi Syahriyah; Yulia Tri Rahkadima
Jurnal Teknik Kimia dan Lingkungan Vol. 5 No. 1 (2021): April 2021
Publisher : Politeknik Negeri Malang

Silica is widely used in industry. The aim of this study was to determine the silica content in vertisol soil in Bringinbendo village. This research was started by soaking the soil in aquadest, then washed 3 times and dried it at 110 ° C for 24 hours. Furthermore, smoothed to 250 mesh size. The second stage is the synthesis of silica using the alkaline extraction method and the treatment of acids. 20 grams of soil powder were extracted in 100 ml NaOH (3, 5, dan 7M) while stirring and heated at 80 ° C. Next, 250 ml of aquadest was added and filtered using Whatman paper. The filtrate was titrated with 5M HCl while stirring until the pH reached 7. The suspension was maintained at room temperature for 24 hours, filtered, and 5 times with aquadest then dried. The results of the mass study were that the greatest silica was found in 7M NaOH concentration at 1 hour, namely 2.59 grams and vertisol soil in Bringinbendo Village had silica content in the medium category with a proportion of 77.7%.

Aplikasi Microwave Hydrodistillation pada Ekstraksi Biji Kapulaga Y. Tri Rahkadima; Anggun Fitria Laila Ningsih; Medya Ayunda Fitri
Jurnal Teknik Kimia dan Lingkungan Vol. 4 No. 2 (2020): October 2020
Publisher : Politeknik Negeri Malang

Minyak Atsiri dari kapulaga memiliki banyak manfaat dibidang industri maupun kesehatan. Metode alternatif diperlukan untuk mengoptimalkan kualitas dan kuantitas minyak atsiri yang dihasilkan karena metode konvensional memiliki banyak kelemahan. Penelitian ini bertujuan untuk membandingkan hasil minyak atsiri dari proses ekstraksi konvensional menggunakan soxhlet dan ekstraksi microwave hydrodistilation . Penelitian dilakukan dengan menggunakan serbuk biji kapulaga seberat 40 gram yang telah dipisahkan dari bahan impuritiesnya . Pada metode ekstraksi Soxhlet , n-heksan digunakan sebagai pelarut, sementara itu pada metode ekstraksi Microwave Hydrodistilation menggunakan aquadest sebagai pelarutnya. Hasil penelitian menunjukkan bahwa persen yield tertinggi diperoleh saat menggunakan metode ekstraksi soxhlet yaitu sebesar 3,608% dengan volume pelarut 250 ml , waktu ekstraksi 6 jam. Penggunaan aquades dalam metode microwave hydro-distilation tidak memberikan hasil yang maksimal jika dibandingkan metode konventional ekstraksi soxhlet dengan pelarut n-heksan. Essential oils from cardamom have many benefits in the field of industry and health. Alternative methods are needed to optimize the quality and quantity of essential oils produced because conventional methods have many disadvantages. This study aims to compare the results of essential oils from conventional extraction processes using Soxhlet and Microwave Hydrodistilation extraction. The study was conducted using cardamom seed powder weighing 40 grams which had been separated from the impurities. In the Soxhlet extraction method, n-hexane is used as a solvent, while in the Microwave Hydrodistilation extraction method uses aquadest as the solvent. The results showed that the highest percent yield was obtained when using the Soxhlet extraction method which was 3.608% with a volume of solvent of 250 ml, extraction time of 6 hours. The use of distilled water in the microwave hydro-distillation method does not give maximum results when compared to the conventional method of extracting Soxhlet with n-hexane solvent.

Co-Authors Abdul Gofur Ahmad Hamdani Muslim Akhmad Nafik Ali Altway Anggun Fitria Laila Ningsih Anggun Fitria Laila Ningsih Anis Febriati Ardhana Fitrianah Ardhana Rahmayanti Arief Adhiksana Arief Adhiksana Ayu Chandra Kartika Fitri Bahauddin Alqostolani Cindi Erlin Carlita Cindy Dwi Cahyani Dini Martha Anggraeni Farikha Alfi Syahriyah Farikha Alfi Syahriyah Farikha Alfi Syahriyah Intan Eka Wulandari Laily Noer Hamidah Listin Fitrianah Listin Fitrianah Luqman Hakim Luqman Hakim Luqman Hakim Luqman Hakim Mega Bilqis Suryawantiningtyas Mochamad Hanafi Muhammad Abdul Ghofir Muhammad Mansur Yafi Muhammad Naufal Ilhami Muhammad Yafi Qurrota A’yuni Rahmad Budianto Rina Sri Wulandari Siti Syefiana Fatmawati Sonhaji Arif Suhadi Suhadi Suhadi Susianto Susianto Trisna Kumala Dhaniswara Vini Kumara Lalita Siniwi Vini Kumara Lalita Siniwi Y. Tri Rahkadima Y. Tri Rahkadima Yulia Tri Rahkadima Yulia Tri rahkadima Zahrotul Azizah Zahrotul Azizah

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