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Nanik Astuti Rahman
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INDONESIA
Jurnal ATMOSPHERE
Published by Institut Teknologi Nasional Malang
ISSN : -     EISSN : 27472272     DOI : https://doi.org/10.36040/atmosphere.v5i1
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology
Journal Atmosphere is an engineering journal focused on process engineering that covers heat and mass transfer, advanced materials, chemical reaction engineering, waste processing and management, biomass energy and renewable energy, thermodynamics, biochemistry, electrochemists, process planning and control, mixing and separation processes.
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 51 Documents
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PENGARUH VARIASI JENIS LIMBAH SAYURAN (KUBIS, SAWI, SELADA) DAN KADAR EM4 PADA PEMBUATAN PUPUK KOMPOS DENGAN PROSES FERMENTASI anita; Setyawati, Harimbi; Sari, Sanny Andjar; Nathania, Devona; Zahwa, Nadila
jurnal ATMOSPHERE Vol. 2 No. 2 (2021): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v2i2.4102

Abstract

Traditional markets produce solid vegetable waste every day, including cabbage, mustard greens and lettuce as well as other vegetables in large quantities. Therefore, a proper technology needs to be applied to deal with the solid vegetable waste. The technology is the recycling technology, that is converting vegetable waste into compost which has more selling value and high use value as natural plant fertilizer without any chemicals. This study aims to determine the effect of various types of vegetable waste and levels of EM4 on composting by the fermentation process. The variables used were EM4 levels 2%, 3%, 4%, 5%, and 6% and the types of the solid vegetable waste used were cabbage, mustard, and lettuce vegetable waste. These materials were put into polybags. The anaerobic fermentation was carried out for 14 days, which every two days was checked for the temperature and pH level. The best analysis results for nitrogen content were obtained in the variety of mustard solid waste with a concentration of EM4 6%, which was 1.06%. The highest phosphorus content was found in the variety of cabbage solid waste with 5% EM4 concentration, which was 0.3%. while the highest potassium content was found in the variety of cabbage solid waste with EM4 concentration of 4%, which was 2.12%
PENGARUH VARIASI SUHU DAN WAKTU PENGERINGAN PADA PEMBUATAN ENZIM PAPAIN DARI EKSTRAK DAUN PEPAYA Nilna, Faidliyah Nilna Minah; Muyassaroh; Azizah, Wasiatul; Sabrina, Mala
jurnal ATMOSPHERE Vol. 2 No. 2 (2021): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v2i2.4287

Abstract

Papaya leaves have long been known as leaves that contain meat tenderizers. Papaya leaves can soften the meat because it contains papain which is one of the protease enzymes. In the fresh papaya leaves there is sap which contains 5.3% papain. Meat tenderizer in powder form is more practical and more durable. One of the papain enzyme powder drying methods that is considered appropriate to be applied in the ginger powder production process is the foam mat drying method. This study aims to examine the foam drying process on papain enzyme activity using tween 80 (foam agent) and maltodextrin as filler to help maintain foam consistency. The drying process was carried out by varying the drying temperature (50oC, 55oC, 60oC, 65oC, and 75oC) and drying time (2 hours, 3 hours, 4 hours, 5 hours and 6 hours). The results of the analysis showed that the highest enzyme activity reached 408.7 U/mL for drying at an operating temperature of 60oC with a time of 2 hours..
OPTIMASI PELARUT EKSTRAKSI ANTOSIANIN DARI UBI JALAR UNGU (Ipomoea batatas L. Poir) UNTUK DETEKSI BORAKS DALAM MAKANAN Zuri Rismiarti
jurnal ATMOSPHERE Vol. 3 No. 1 (2022): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v3i1.4298

Abstract

Ekstrak antosianin dari ubi jalar ungu (Ipomoea batatas L. Poir) dapat dimanfaatkan untuk deteksi boraks dalam makanan. Dengan memanfaatkan ekstraks antosianin dari ubi jalar ungu maka pemakaian reagen kimia untuk deteksi boraks dalam sampel makanan dapat diminimilisir. Perbedaan dalam penggunaan pelarut dan perbandingan pelarut akan menghasilkan konsentrasi ekstrak antosianin yang berbeda. Oleh sebab itu dilakukan maserasi dengan menggunakan 2 pelarut yang berbeda. Maserasi 1 dilakukan dengan menggunakan pelarut dengan perbandingan 25:1:5 (etanol: asam asetat glasial: aquades) jumlahnya 100 mL. Untuk maserasi 2 dilakukan dengan pelarut HCl 1,5M yang dibuat dalam etanol pada volume 100 mL. Maserasi dilakukan selama 24 jam. Kemudian untuk menganalisa kadar antosianin masing-masing pelarut dilakukan dengan menggunakan metode antosianin monomerik melalui spektrofotometri (mg/L).Berdasarkan penelitian yang dilakukan diperoleh kadar antosianin tertinggi dari ekstraksi ubu jalar ungu sebesar 11, 910 mg/L dalam 10 gram ubi jalar ungu basah dengan menggunakan maserasi 2.
KARAKTERISTIK BIOMASSA DAUN BUNGA SEPATU MENJADI BAHAN BAKAR STERNO GEL Dewi, Rini Kartika; Muyassaroh; Jimmy
jurnal ATMOSPHERE Vol. 2 No. 2 (2021): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v2i2.4301

Abstract

Sterno gel of hibiscus leaves (Hibiscus rosa-sinensis L.) is an alternative energy source that can be used as fuel because it has non-volatile characteristics, during the combustion process it does not smoke, does not have soot and does not produce harmful and carcinogenic gas emissions and does not have any harmful gases. the impact of emissions on the environment, Inside the hibiscus leaf contains saponins, -sitosterol, stigmasterol, taraxeryl acetate and 3-cyclopropane and their derivatives which will dissolve in both water and ethanol and will form colloids in water. With this composition, the researchers used hibiscus leaf biomass as fuel for sterno gel, where in this study the variables were filtrate mass of hibiscus leaf :10,1 20, 30, 40,50,60 and 70 grams and mass of carbopol :1, 1.5, 2 and 2.5 grams. From the research, it was found that the best burning time was 60 grams of hibiscus filtrate mass and 2.5 grams of carbopol mass, which was 25.02 minutes with the resulting gas emission values ​​of NOx: 4 ppm, SO2: 3 ppm and H2S: 2 ppm. While the calorific value is 3500 calories.
PROSES MICROWAVE ASSISTED EXTRACTION (MAE) RIMPANG JAHE MERAH DENGAN VARIASI PERLAKUAN BAHAN DAN DAYA OPERASI Muyassaroh
jurnal ATMOSPHERE Vol. 2 No. 2 (2021): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v2i2.4313

Abstract

Minyak jahe diketahui memiliki berbagai fungsi dan mempunyai nilai jual yang cukup tinggi. Permasalahan utama yang dihadapi industri minyak jahe di Indonesia adalah bahwa minyak jahe dari Indonesia tidak dapat memenuhi persyaratan karakteristik mutu yang ditentukan pada standar internasional yakni putar optik yang bernilai negatif akibat dari rendahnya kadar zingiberene minyak jahe. Kecilnya komposisi zingiberene pada minyak jahe Indonesia dikarenakan pada proses destilasi konvensional, zingiberene mengalami degradasi thermal. Alternatif proses produksi minyak jahe yang ditawarkan adalah proses produksi minyak jahe menggunakan teknologi Microwave Assisted Extraction (MAE). Penelitian ini bertujuan menentukan kondisi optimum proses ekstraksi minyak jahe menggunakan teknologi MAE. Variabel pada penelitian ini meliputi daya dan perlakuan bahan. Hasil penelitian menunjukkan bahwa hasil terbaik diperoleh pada ekstraksi daya 300 Watt yaitu rendemen 2,01 % dan kadar Zingiberene 6,72 % sesuai dengan SNI 06-1312-1998. Minyak jahe hasil ekstraksi menggunakan proses MAE memiliki kadar Zingiberene yang lebih besar dari kadar Zingiberene yang dihasilkan dari proses ekstraksi dengan pemanasan konvesional.
REVIEW: TEKNOLOGI PEMBUATAN SORBITOL DARI TEPUNG TAPIOKA Defri, Ifwarisan; Irfansyah, Aditya; Sudarsono, Sukma; SAPUTRO, ERWAN
jurnal ATMOSPHERE Vol. 2 No. 2 (2021): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v2i2.4314

Abstract

Sugar alcohol or sorbitol is a derivative product of carbohydrates, namely glucose through the hydrogenation process with hydrogen gas. The glucose used comes from flour, because the carbohydrate content in tapioca flour is considered the highest compared to other flour ingredients. Before the hydrogenation process is carried out, tapioca flour is enzymatically hydrolyzed so that the starch is broken down into glucose. The process of making sorbitol can be done in two ways, namely the electrolysis reduction process and the hydrogenation process with the help of a nickel catalyst. This literature study aims to determine the technology for making sorbitol and its advantages and disadvantages, both in terms of product and process, so that it can be used as a reference in selecting processes in sorbitol manufacturing plants. The catalytic hydrogenation process has advantages, namely the resulting yield is greater and the operating costs are relatively cheaper. The catalytic hydrogenation process also has several disadvantages, namely that it requires good safety handling because it requires high pressure in the process.
PENGARUH PENGERINGAN TERHADAP KADAR TANIN TEH HERBAL DAUN BELIMBING WULUH (AVERRHOA BILIMBI) Azkia Azhara Assya; Owin Ikhlas; Novy Pralisa Putri; Niawanti, Helda
jurnal ATMOSPHERE Vol. 3 No. 1 (2022): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v3i1.4654

Abstract

Herbal tea is a beverage product that people widely consume to improve health. Herbal teas are processed from various types of plants that contain bioactive compounds. One of the plants that contain bioactive compounds is Averrhoa bilimbi. The drying process is influenced by several parameters, including time and airflow velocity. This study aims to determine the effect of these two parameters on the drying process using a tray dryer on reducing the moisture content and tannin content of herbal tea. Averrhoa bilimbi leaves were dried at 65 ° C, drying times of 60, 90, 120 minutes, and airflow velocities of 6.8, 9.3, and 10 km/hour. The highest air content decreasing was 68%, and the highest tannin content was 1,871 ± 0.283%, which was obtained at an airflow velocity of 6.8 km/hour and a time of 120 minutes. The results showed that the drying time of 120 minutes did not damage the bioactive tannin compounds, and the decrease in air content in the results of drying could increase the levels of tannins extracted when the leaves were brewed into a drink that could be consumed.
PENGARUH VARIASI KONSENTRASI EM4 DAN JENIS LIMBAH KULIT BUAH PADA PEMBUATAN PUPUK ORGANIK CAIR (POC) anita; Harimbi Setyawati; Sanny Anjarsari; Lalu Topan Sulistiyono; Josephine Vania Wisnurusnadia
jurnal ATMOSPHERE Vol. 3 No. 1 (2022): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v3i1.4708

Abstract

Industri makanan berbahan dasar buah-buahan seperti pisang juga nanas ,menghasilkan bahan buangan atau limbah diantaranya berupa kulit dalam jumlah yang banyak. Limbah kulit buah tersebut dapat dimanfaatkan lebih lanjut diantaranya dengan proses daur ulang, menjadi pupuk organik cair (POC). Pupuk Organik Cair (POC) merupakan produk yang berasal dari pembusukan bahan-bahan organik yang berfungsi mengatasi kekurangan unsur hara pada tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh variasi konsentrasi EM4 , sebesar 5%, 10%,15%,20%,25% dan jenis limbah kulit buah diantaranya kulit pisang, kulit nanas, dan campuran kulit pisang dan kulit nanas terhadap kualitas Pupuk Organik Cair (POC) dengan proses Fermentasi. Hasil terbaik untuk kandungan Nitrogen didapatkan pada kulit.nanas sebesar 0,07% dengan konsentrasi EM4 15% , dan untuk hasil kandungan Phospor tertinggi didapat pada kulit .pisang dan kulit nanas sebesar 0,03% dengan konsentrasi EM4 20% , sedangkan kandungan Kalium terbaik didapatkan pada kulit.pisang sebesar 0,38% dengan konsentrasi EM4 20%.
DEKOMPOSER ALAMI BERBAHAN LIMBAH SAYUR DENGAN PENAMBAHAN WHEY KEJU SEBAGAI SUMBER PROTEIN anita; Rizky Meidiana Faradila; Muhammad Rio Hendratama; Nanik Astuti Rahman
jurnal ATMOSPHERE Vol. 3 No. 1 (2022): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v3i1.4800

Abstract

Uncontrolled accumulation of vegetable waste can have a negative impact that will affect various aspects of life, either directly or indirectly. Many studies have used vegetable waste as a raw material for making fertilizers by adding EM4 as a source of decomposing microorganisms. EM4 as a source of microorganisms can be replaced with local microorganisms from a mixture of cabbage waste, cheese whey, molasses, rice bran, and coconut water. For this reason, this study uses vegetable waste, namely cabbage with variations in fermentation time and the ratio of cabbage waste and whey cheese as a natural decomposer from a mixture of vegetable waste and cheese whey which is processed by fermentation so that it can be used as a source of microorganisms in the manufacture of liquid organic fertilizer (POC). This study aims to study the effect of fermentation time and the effect of the ratio on the process of making natural decomposers from cabbage vegetable waste and cheese whey. This study uses a ratio of 30:70; 20:80; 10:90; 0:100 on a mixture of cheese whey and cabbage vegetable waste (WLs) with fermentation times of 7, 14, and 21 days. From the analysis of nitrogen levels, the highest yield was found at a ratio of WLs 20:80 of 1.54 with a fermentation time of 14 days, while analysis of phosphorus levels obtained the highest results with a ratio of WLs 10:90 of 0.77 at a fermentation time of 21 days. potassium obtained the highest yield with a ratio of WLs 30:70 of 0.41 at 21 days of fermentation. While the results of identification and analysis of the number of microorganisms showed that the manufacture of a natural decomposer solution with a fermentation time of 7 days contained 1 type of isolated lactic acid bacteria, namely Bacillus subtilis, and there were no pathogenic bacteria such as E. coli and salmonella. WL variable. 20:80, which is 15 × 104 colonies/100 mL.
PERANCANGAN PRODUK HANDBODY LOTION JERUK NIPIS Marcelino Andrianto Sukardjono; Viktor Manuel Subagio; Siswi Astuti; anita
jurnal ATMOSPHERE Vol. 3 No. 1 (2022): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v3i1.4805

Abstract

To soften and keep the skin from drying out, you can use cosmetic products in the form of body lotion. In addition to moisturizing, the skin needs antioxidants to ward off free radicals which in this study used lime. The purpose of this research is to design a cosmetic product that can provide health benefits for the body, especially for skin health by formulating hand body lotion using lime as raw material and describing the manufacturing process and the planned supply chain. This Handbody Lotion product with herbal raw materials using citrus fruit extract will be represented by the Citrely brand (read: sitrilai) which stands for Citrus and Lovely. The calculation of the break-even point was reached when producing 260,000 bottles (packages) with a BEP percentage of 57.023%. Calculation of POT after tax is obtained, the capital will return in a period of 5.72 years.

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