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All Journal International Journal of Public Health Science (IJPHS) Jurnal Teknoin Diponegoro Law Journal Lentera Hukum JURNAL LITIGASI (e-Journal) Jurnal Teknik Kimia Jurnal technoscientia Jurnal Teknologi Seminar Nasional Teknik Kimia Kejuangan Journal of Environmental Engineering and Sustainable Technology Brawijaya Law Journal : Journal of Legal Studies Journal of SouthEast Asian Human Rights Politik Indonesia: Indonesian Political Science Review Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Serambi Engineering International Journal of Community Service Learning Dharma Bakti Wiyata Dharma: Jurnal Penelitian dan Evaluasi Pendidikan International Journal of Marine Engineering Innovation and Research JURNAL TEKNOLOGI TECHNOSCIENTIA Prosiding SNAST ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Pancasila: Jurnal Keindonesiaan Jurnal Ilmiah Mahasiswa Manajemen, Bisnis dan Akuntansi Indonesia Law Review (ILREV) Jurnal Redoks : Jurnal Pendidikan Kimia dan Ilmu Kimia Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Kimia dan Rekayasa Jurnal Inovasi Proses Jurnal Hukum dan Pembangunan Jurnal Teknologi Jnanadharma Mores: Jurnal Pendidikan Hukum, Politik dan Kewarganegaran

Ani Purwanti

Institut Sains Dan Teknologi Akprind

Author-ID : 537980

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Social Sciences Transportation Other

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OPTIMASI KONDISI PROSES EKSTRAKSI MINYAK BIJI PEPAYA Yuniwati, Murni; Purwanti, Ani
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscentia Vol 1 No 1 Agustus 2008
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v1i1.382

The papaya (Carica papaya L.) is a member of the small class dycotyledoneae, family caricaceae, and genus cariaca. This plant is native to the Central America and West Indies. It grows well at the tropical region with elevation 600-700 m above the sea level. Today papaya seed is only throwed away as a waste product, whereas in fact the papaya seed contains fatty acids with higher economic value which is called papaya oil. Oil of papaya seed can be obtained from solid - liquid extraction method. In this investiga-tion, the extraction of papaya seed was carried out in the stirred reactor with ethanol as a solvent. Solvent-extracted oil was distilled to separate papaya seed oil from solvent. The variables of investigation were extraction temperature, stirring speed, ratio between sol-vent volume and mass of papaya seed, and size of papaya seed. The extracted oil was a-nalyzed by using gas chromatography to determine the fatty acid composition. The opti-mum condition of papaya seed extraction were obtained at extraction temperature 300C, stirring speed 397 rpm, ratio between solvent volume and mass of papaya seed at 25 : 1, and size of papaya seed (-14/+20) mesh or average diameter 0.08 cm. The correlation between mass transfer coefficient and these variables is shown in the dimensionless e-quation below : Sh = 8,89 (10)5 Re(0,7785). Sc 0,9411.With the average error is 0.9706%.

OPTIMASI KOEFISIEN TRANSFER MASSA PADA EKSTRAKSI MINYAK BIJI KETAPANG Purwanti, Ani; -, Sumarni; -, Sugiyanto
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 2 No 2 Februari 2010
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v2i2.433

Mass transfer between solid and liquid is commonly found in extraction process. Oil extraction from catappa seeds was carried out in the stirred flask using normal hexane as a solvent. The aim of this research is to show a dimensionless equation of a Sherwood number {/} as a function both of Reynolds number {/} and Schimdt number {/}. The experiment was conducted in the room temperature, around 290C, stirring speed 500 rpm, blade diameter 2 cm, and the ratio between the mass of catappa seeds and the volume of solvent was 20 gr/100mLâ€“20 gr/200 mL. The calculation error was 0.072%. Based on the research, it is found that Sh = 0,2166.106 . Re-1,506. Sc1,120.

OPTIMASI KONDISI PROSES PENGAMBILAN ASAM ALGINAT DARI ALGA COKLAT Purwanti, Ani
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v5i2.533

Seaweed is a marine product that has been widely used as a food ingredient. In addition, seaweed can also produces carrageenan and alginate which is an important compound in the industry. It is important to know the influential factors and the optimum process conditions to get the maximum alginate yield. In this study, it is to be obtained the optimum process conditions of taking alginate from brown algae (Sargassum cymosum). The seaweed powder was analyzed the water content and the ash content. To get alginate, this material is soaking in acid and to be extracted. It is continued with the process of gel formation and the process of conversion of alginic acid to sodium alginate to obtain dry Na-alginate. The variabel of the experiments are variation of the concen-tration and immersion time in hydrochloric acid solution, the variation of temperature, time, and concentration of sodium carbonate solution that used in the extraction process, the influence of the degree of acidity of the deposition process of alginic acid into alginic acid gel. The optimum conditions that obtained are the immersion time in 0.5M of hydro-chloric acid is 90 minutes, the extraction process conditions are 400C for 90 minutes with the sodium carbonate concentration 0.5 M. The solution acidity of the deposition rate is 3.

PENGARUH SUHU PROSES TERHADA P SINTESIS ALKYD RESIN DARI DAUN KEMANGI (OCIMUM BASILICUM) SEBAGAI BAKAL BINDER PEMBUATAN CAT Paparingan, Theodorus Cahyo; Pasaribu, Dony Syamsuddin Halomoan; Qoyyim, Fatah Ibnul; Purwanti, Ani
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 12 No 1 Agustus 2019
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v12i1.1825

Alkyd resin are an example of a polymer product formed by the condensation polymerization process. Alkyd has great value when modified with natural oils or synthesis (triglycerides). This study aims to determine the effect of temperature on the mechanical properties of alkyd resin. The research process consists of 4 stages: the extraction process, the distillation process, the alcoholysis reaction and the esterification reaction. The study began by extracting essential oils from dried basil leaves. Extraction is done using n-hexane solvent which will be removed in the distillation process. The alcoholysis begins by reacting basil essential oil with glycerin in a volume ratio of 1:5 at 180oC. Then the esterification step is carried out by mixing phthalic anhydride into a batch reactor with a molar ratio of glycerol:phthalic anhydride 3:2. Then analyze aspects of viscosity, acid numbers, iodic numbers, and colors. The results obtained in the analysis showed a process temperature of 180oC more effectively used for further research processes because of the compatibility of the results with the alkyd resin reference value. The results obtained are 189516 cP viscosity, acid number 6,83935 mg/g, iodic number 1,8935 mg/g, and a dark yellow color.

PEMISAHAN AMIL ALKOHOL DARI LIMBAH CAIR LUTTER WASHER Ani Purwanti
Teknoin Vol. 22 No. 1 (2016)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol22.iss1.art3

Fusel oil is a side product of ethanol manufacturing process through the fermentation of molasses. Sometimes, fusel oil is accidently mixed with liquid waste from the bottom of alcohol rectifying column. This mixture is called lutter washer. Fusel oil contains isoamyl alcohol, n-amyl alcohol, and other alcohols. Isoamyl alcohol is the raw material of organic ester. Further processing is required to increase the economic value of fusel oil, such as the separation of components by distillation. In this study, the composition of isoamyl alcohol and n-amyl alcohol in the residue in the distillation process as a function of distillation time in a packing column was evaluated. An artificial waste lutter washer was used as a raw materials in this experiment. The processes were conducted using a distillation column with a cylindrical dan spherical glass packing materials. Lutter washer was distilled with total reflux until the equilibrium temperature was reached, then the data of the experiment was taken during 180 minutes at the condition of reflux at 5/5 (5 minutes distillate was returned to the tower and 5 minutes distillate was collected). The composition of the distillation residue were evaluated at interval time of 30 minutes. The same processes were evaluated using different heights of packing materials. The data show that the highest composition of isoamyl alcohol and n-amyl alcohol are 21.99% and 3.70% of the 15 mL total residue, respectively. It is obtained in the distillation process that used the packing materials with ball shape, the column with 85 cm of height and 3.5 cm of diameter.

Evaluasi Proses Pengambilan Beta Karoten sebagai Sumber Zat Warna Alami dari Ubi Jalar Kuning Ani Purwanti; Maria Egenia Vivian Eksi Putri; Nadia Alviyati
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2020: PROSIDING SNTKK 2020
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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STUDI PROSES DEASETILASI PADA PEMBUATAN KITOSAN DARI LIMBAH UDANG Ani Purwanti; Sumarni -; Tetty Br. Sitohang; Novita Setyawati
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 3 No 2 Februari 2011
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Chitosan is derived from dry shrimp shell that has been demineralized, deprotei-nized, and deacetylized to remove the mineral, protein, and the acetyl group. Chitosan can be used as a food preservative. The aim of this study is to optain the effect of processing time, temperature, solvent volume, and concentration of NaOH in the deacetylation process.In this experiment, the shrimp shell powder had water content and ash content of 5.73% and 29%, respectively. Deproteinization process used a solution of NaOH 5%, processing temperature of 100ºC, and processing time about 2 hours. The process of demineralization used 1N HCl solution, temperature process of 80ºC, and processing time 1 hour. In the deacetylation with fixed variable at at 300 mL of solution of NaOH 40% as a solvent and temperature of 1100C, the relatively good condition of the process is obtained at the processing time of 3 hours. In the experiment with the volume of solvent as a variable, chitosan with optimum of ash content and solution viscosity is reached at the volume of solvent about 300mL. In the experiment with the process temperature are 100ºC and 140ºC, and with the dependent variable, i.e volume of solvent, processing temperature, and concentration of NaOH solution are 300mL, 3 hours, and 40%, respectively, the chitosan with good ash content and viscosity under 200 millipoise is obtained at a temperature of 110°C. In these experiments, chitosan with optimum ash content and viscosity of 1.06% and 175.36 millipoise, respectively, is obtained at processing time, solvent volume, processing temperature, and NaOH concentration at the value of 3 hours, 300 mL, 1100C, and 40%, respectively. The chitosan with optimum characteristics is applied as a coating of tomatoes and grapes. The results shows that the fruits which are dipped into the chitosan solution have a longer lifetime than fruits without preservatives or coated with 1% acetic acid solution.

PIROLISIS LIMBAH PANGKAL BAMBU MENJADI KARBON AKTIF DAN ASAP CAIR MENGGUNAKAN ZAT AKTIVATOR ASAM PHOSFAT Ani Purwanti; Sumarni -; Ade Alvian A
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 9 No 2 Februari 2017
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

An inefficient utilization of bamboo resulted in bamboo base as waste without economical value. Converted this bamboo waste becomes active carbon through pyrolysis will add more value of the product. This study aims to determine the parameters which influence the pyrolysis of bamboo waste, to determine the activity of the obtained active carbon and liquid smoke yield. The preparation of raw material was conducted by cutting the bamboo into the size of an average length of 4.33 cm, 1.43 cm wide, and 0.48 cm high, also analyzed the water content. Pyrolisis was done for 60 minutes in the range of temperature between 250°C to 450°C. Activation methods varied by soaking in diluted phosphoric acid solution (6-14%) prior to pyrolysis with variations in dipping time and temperature pyrolysis. Yield and reactifity of obtained active carbon and also yield of liquid smoke were analyzed. With 100 gram of raw material, 60 minutes of reaction time, and activation for 24 hr resulted in an optimum yield of active carbon 27,43% with reactivity 433,99 mg/g under 12% of phosphoric acid solution at 450°C, and the yield of liquid smoke was 54 mL. GC-MS results showed that acetic acid (30.33%) as a major component, while 2-propanone (14,34%), methanol (10,37%), 2-butanone (3,75%) acetaldehyde (3,59%), furfural (2,95%), corylon (2,21%), cyclopropyl carbinol (2,11%), phenol (2,1%), glycol (1,85%), dan carbonic acid (1,28%) as a minor component.

KINETIKA REAKSI PIROLISIS PLASTIK LOW DENSITY POLIETHYLENE (LDPE) Sumarni Sumarni; Ani Purwanti
Jurnal Teknologi Vol 1 No 2 (2008): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

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Proses pirolisis non katalisis pada penelitian ini menggunakan bahan baku berupa plastik poliethylene jenis LDPE (Low Density Polyethylene) yang berupa lembaran. Penelitian ini dilakukan untuk mempelajari kinetika reaksi pirolisis LDPE dengan metode pendekatan reaksi yang disederhanakan di mana reaksi pembentukan cairan sebagai reaksi utama. Reaktor yang digunakan berupa retort yang dilengkapi dengan termokopel dan regulator untuk menjaga kestabilan suhu operasi, serta pendingin yang berfungsi untuk mendinginkan gas hasil pirolisis. Kondisi operasi berlangsung pada tekanan atmosferis dengan variasi suhu berkisar antara 400oC – 600oC dengan pengamatan waktu operas yang dilakukan setiap interval waktu 10 menit. Pada suhu yang diinginkan tercapai, saat hasil distilat pertama kali keluar dianggap sebagai awal proses pirolisis (t = 0). Data percobaan diperoleh dengan mengambil hasil distilat dan mengamati volume hasil gas setiap interval waktu tertentu, serta menimbang padatan yang tertinggal dalam retort setelah pirolisis berakhir. Dari hasil pirolisis lembaran plastik polyethylene LDPE, diperoleh harga energi aktivasi pada konstanta kecepatan reaksi pirolisis keseluruhan (ko) sebesar 377,11 kJ/mol dan pada persamaan konstanta kecepatan pembentukan hasil cair (k2) sebesar 663,39 kJ/mol.

PEMANFAATAN METODA NEWTON-RAPHSON DALAM PERANCANGAN REAKTOR ALIR TANGKI BERPENGADUK Sumarni Sumarni; Ani Purwanti
Jurnal Teknologi Vol 2 No 2 (2009): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

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Perancangan reaktor alir tangki berpengaduk pada umumnya dimaksudkan untuk menentukan volume reaktor yang diperlukan agar reaksi yang terjadi dapat berlangsung sesuai dengan konversi yang diinginkan. Untuk proses yang berlangsung secara isotermal dan telah tercapai kondisi steady, yaitu tidak ada perubahan volume maupun konsentrasi terhadap waktu, dapat disusun neraca massa dan persamaan kecepatan reaksi maupun neraca panas pada reaktor tersebut. Untuk reaksi bolak-balik (reversible) misal reaksi isomerisasi normal-butana menjadi iso-butana, dengan mengetahui panas reaksi sebagai fungsi suhu dan konstanta kesetimbangan, dapat disusun persamaan yang menyatakan hubungan antara konversi (termodinamika) dengan suhu dan disusun neraca panas untuk mendapatkan persamaan yang menyatakan hubungan konversi dengan suhu. Dengan menyamakan konversi berdasar kesetimbangan (termodinamika) dengan konversi (neraca panas), maka besarnya konversi kesetimbangan maupun suhu operasi dapat ditentukan dengan metoda Newton-Raphson. Pada perancangan reaktor alir tangki berpengaduk dilakukan perhitungan optimasi jumlah reaktor yang diperlukan agar memberikan total harga reaktor relatif paling kecil. Untuk ini dihitung volume reaktor apabila reaksi dijalankan di dalam satu reaktor atau beberapa (dua, tiga, empat) reaktor yang disusun seri. Volume reaktor dapat dihitung apabila konversi keluar reaktor telah terhitung, dalam hal ini dapat digunakan metoda Newton-Raphson dengan bantuan program excel. Berdasar suhu umpan (T = 330 K), pada keadaan kesetimbangan reaksi isomerisasi normal-butana membentuk iso-butana diperoleh konversi terhadap normal-butana (xe) sebesar 72,62% dengan suhu kesetimbangan 360,99 K. Untuk mencapai konversi sebesar 67,8% pada kondisi isotermal (T = 330 K), dengan menganggap reaksi orde satu terhadap normal-butana (A) dan order satu terhadap iso-butana (B), dapat ditentukan volume masing-masing reaktor yaitu satu reaktor, V = 7.817,5 gallon, dua reaktor, V = 1.897,5 gallon, tiga reaktor, V = 1.016,0 gallon, empat reaktor, V = 569,5 gallon. Dengan memperhitungkan harga berdasarkan volume reaktor dan jumlah reaktor yang digunakan, dipilih jumlah reaktor yang digunakan sebanyak tiga buah reaktor, mengingat pada kondisi ini memberikan harga termurah. Kata kunci : volume reaktor, konversi, metoda Newton-Raphs

Co-Authors A Halim Abdul Aziz Abdullah Dedi R Achmad Fauzi Achmad Thesa Widhaswara Ade Alvian A Ahmad Daudsyah Imami Anak Agung Putu Susastriawan Arbintarso, Ellyawan Setyo Azizah, Rifka Noor Bagoes Widjanarko Budi Ispriyarso Busro, Ahmad Dion Awfa Edo Barlian Eka Sulistyaningsih Eka Sulistyaningsih Emy Setyaningsih Endri Santoso Fauziah, Muna Fitri Riyadi Fitria, Laili FX Adji Samekto FX. Adji Samekto I Wayan Koko Suryawan Ikhwali, Muhammad Faisi Imami, Ahmad Daudsyah Istiqomah Shariati Zamani Janter Pangaduan Simanjuntak Jarot Wijayanto Kadek Cahya Susila Wibawa Khasanah, Rahayu Laksmi Indreswari Lusi Ariani Maria Egenia Vivian Eksi Putri Mispiyanti, Mispiyanti Moh Salimi Muchlis Muchlis mUH. Afif Mahfud Muhammad Yusuf Muhammad Yusuf Mukasi Wahyu Kurniawati Muklis Muklis Murni Yuniwati, Murni Murniati, Yunita Nadia Alviyati Natalis, Aga Novita Setyawati Novrianty, Irma Nur Novilina Arifianingsih Nur Rochaeti, Nur Nur Rochaety, Nur Pangestu, Muhammad Puri Dwi Panjaitan, Nahesson Hotmarama Paparingan, Theodorus Cahyo Parjoko, Anom Pasaribu, Dony Syamsuddin Halomoan Permadi, Pongky Prabowo, Fajar Yulianto Pratama, Galuh Prasetio Prayoga, Yudi Prayogo, Wisnu Purnawan Purnawan Putri Lynna A. Luthan Putri, Fayreizqi Azellea Mashanda Qoyyim, Fatah Ibnul Rachmat Mulyana Rahayu Khasanah Ratna Hidayah Rian Adhivira Prabowo, Rian Adhivira Rifka Noor Azizah Rizki Putri Sekarini Rofifah, Salma Putri Salamor, Yonna Beatrix Septiariva, Iva Yenis Setiawan, Fajar Ahmad Siswandi Waluyo Sitepu Amrina Rosyada Sri Rahayu Gusmarwani, Sri Rahayu Sri Sunarsih Sri Sunarsih Subarkah Suci Musvita Ayu Sugiyanto - Sulistyaningsih, Eka Sumarni - Sumarni - Sumarni - Sumarni Sumarni Sumarni Sumarni Suparni Setyoawati Rahayu Suparni Setyowati Rahayu Suryawan, I Wayan Koko Teddy Asmara Tetty Br. Sitohang Tri Saptuti Susiani Triantono, Triantono Vemi Ridantam Wibowo, Ribut Hari Wijaningsih, Dyah Wisnu Prayogo Wisnu Prayogo Yuli Purwanto, Yuli Zahroh Shaluhiyah

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