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All Journal Jurnal Teknik Kimia Jurnal Fisika Unand Majalah Ilmiah MOMENTUM AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Pengbdian Teknik Mesin Biomedical and Mechanical Engineering Journal Indonesian Journal of Chemical Science
L.Urip Widodo, Yohandrik Novel Karaman
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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PECTIN FROM PAPAYA PEEL Novel Karaman, Yohandrik, L.Urip Widodo,
Jurnal Teknik Kimia Vol 6, No 1 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v6i1.78

Abstract

Extraction from adhesive substance between tissue chell in the papaya peel wouldproduce a product called pectin. The aim of this research was to obtain pectin from papayapeel. Ten miligrams of papaya peel with the size of 40 mesh added with 200 ml of aquadesl,then add also HCl with various concentration: 0.01 N, 0.015 N, 0.02 N, 0.025 N, and 0.03N.The extraction was done at 80 0C temperature for: 1, 1.5, 2, 2.5 and 3 hours after that solutionextracted filtered to separate the concentrate and filtrate. The concentrate discharded and thefiltrate was pectin. Pectin filtrate then heated at temperature of 95 ° C while stirring intensivelyuntil the volume obtain half then the original volume. The filtrate cooled using acid alcohol,and stirred until evenly. After mixed evenly, filtrate left over fot about 10-14 hours. Theprecipate pectin then separated, washing with 95% neutral alcohol, and dried in an oven at 40oC for 6 hours. Dry pectin content weighed and analyzed the content of methoksil. The bestconditions result: the rendement of pectin obtained 9.2% and the content methoksil papaya peelwas 8.87% at 2 hours with the concentration of HCL 0.02 N.Keywords: extraction time, papaya peel, pectin
Pemanfaatan Limbah Organik Kopi Menuju Desa Mandiri Pangan dan Energi Novel Karaman; Tria Puspa Sari; Ndaru Adyono; Wahyu Dwi Lestari; Radissa Dzaky Issafira; Ahmad Khairul Faizin; Wiliandi Saputro
Abdi-mesin: Jurnal Pengabdian Masyarakat Teknik Mesin Vol. 1 No. 2 (2021): Abdi-Mesin
Publisher : Program Studi Teknik Mesin Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.069 KB)

Abstract

Abstrak Dusun Kuntul Desa Kalipucang Kecamatan Tutur Kabupaten Pasuruan merupakan salah satu daerah penghasil kopi. Kurangnya pengetahuan dan keterampilan masyarakat daerah tersebut untuk mengelolah limbah organik yang dihasilkan dari kopi. Penyuluhan dan sosialisai tentang pemanfaatan limbah organik kopi kepada komunitas masyarakat di daerah tersebut sangat bermanfaat bagi kemandirian desa di bidang pangan dan energi. Metode yang digunakan adalah penyuuhan dan sosialisasi secara langsung kepada komunitas masyarakat, selain itu juga memberikan demonstrasi tantang memodifikasi kompor dan cara pemurnian biogas. Biogas tersebut didapatkan dari proses pembusukan bahan-bahan organik yang dihasilkan dari limbah kopi. Oleh karena itu, masyarakat di daerah tersebut mendapatkan pengetahuan dan keterampilan tentangpengolahan limbah organik menjadi biogas dari kegiatan ini.
Analysis of effect Magnesium Ammonium Phospate (MAP) Concentration on Struvite Morphology in A Vertical Reactor Luluk Edahwati; Sutiyono; Atika Andini; Wahyu Dwi Lestari; Tria Puspa Sari; Ndaru Adyono; Novel Karaman
Biomedical and Mechanical Engineering Journal (BIOMEJ) Vol. 1 No. 1 (2021): BIOMEJ
Publisher : Mechanical Engineering Department at Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.606 KB)

Abstract

Struvite was a white crystal known as Magnesium Ammonium Phosphate Hexahydrate (MgNH4PO4.6H2O). In industry, struvite was found in the pipes crust which the hot fluid through passes. Struvite is often used as fertilizer because it contains phosphate content. The one of benefits of struvite crystals is slow release fertilizer, so it can be more durable, which is good for the growth of the plants. The Precipitation technology is currently one of the most widely applied technologies in struvite formation. The process of forming struvite is carried out by using a vertical reactor. The process started by mixing the equimolar solutions of MgCl2, NH4OH, and H3PO4 with a concentration ratio of 1: 1: 1 and 1: 1: 2. The process was carried out with the condition at the 30°C while the air inlet rate was 1.25 liters/min. The pH of the solution is pH 9 and controlled using NaOH solution. The process was carried out in the steady state condition. Then the solution was filtered and solid was dried at room temperature for 48 hours. From this study, the concentration ratio of 1:1:2 was obtained the best composition of struvite compared to the others ratio. The solid was analyzed by using the SEM-EDX instrument. The morphology of struvite was formed an irregular pyramid-like crystal or commonly referred to as an authorhombic shape.
SEM Analysis of UHMWPE for Biomedical Application Wahyu Dwi Lestari; Luluk Edahwati; Tria Puspa Sari; Ndaru Adyono; Novel Karaman
Biomedical and Mechanical Engineering Journal (BIOMEJ) Vol. 1 No. 1 (2021): BIOMEJ
Publisher : Mechanical Engineering Department at Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (306.617 KB)

Abstract

The objective of this study is to investigate the wear mechanism of UHMWPE acetabular liner. There were three samples of acetabular liner with variations without crosslink, with crosslink doses of 50 kGy and 100 kGy which were subjected to a wear testing process. The wear test was carried out using a Tribometer wear testing machine with a total of 30,000 cycles and a load of 800N. Microstructure analysis was performed using scanning electron microscopy (SEM). The results show that the surface of the UHMWPE acetabular liner with the crosslink treatment is smoother than the untreated one. This shows that UHMWPE with crosslink treatment has a lower wear rate, where the greater the crosslink dose the lower the wear rate. The wear mechanism that occurs in this study is the third body abrasion which leads to adhesive wear.
Edukasi Pandemi Covid-19 Sebagai Upaya Pencegahan dan Pemutusan Mata Rantai Penularan Covid – 19 di Desa Malangsari Kabupaten Nganjuk Novel Karaman; Mu'tasim Billah; Titi Susilowati; Silvana Dwi Nurherdiana; Galih Suci Widyanto; Rima Fitriasari
Abdi-mesin: Jurnal Pengabdian Masyarakat Teknik Mesin Vol. 1 No. 2 (2021): Abdi-Mesin
Publisher : Program Studi Teknik Mesin Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (539.209 KB)

Abstract

Corona virus Disease-2019 (COVID-19) merupakan penyakit menular yang disebabkan oleh virus bernama SARS – COV-2 atau yang dikenal dengan VIRUS CORONA. Virus Corona ini menyebabkan infeksi saluran nafas pada manusia mulai dari batuk pilek hingga yang lebih serius seperti Middle East Respiratory Syndrome (MERS) dan Severe Acute Respiratory Syndrome (SARS). Penyebaran virus COVID- 19 meningkat semakin cepat melalui tetesan air liur atau keluar dari hidung ketika orang yang terinfeksi batuk atau bersin. Namun demikian, masih sedikit pemahaman dan kesadaran masyarakat di Desa Malangsari, Kecamatan Tanjung Anom, Kabupaten Nganjuk yang mematuhi protokol kesehatan saat beraktivitas di luar rumah. Oleh karena itu, perlunya peningkatan pemahaman COVID-19 dan pentingnya mematuhi protokol kesehatan dalam upaya pencegahan dan pemutusan mata rantai penularan COVID-19. Kegiatan yang dilakukan dengan metode Edukasi COVID-19 kepada Masyarakat desa Malangsari melalui sosialisasi, penempelan pamflet di tempat umum, penerapan protokol kesehatan, dan media sosial. Dengan demikian, harapan Desa Malangsari terbebas dari virus corona dapat terwujud.
Energi Alternatif (Biogas) Pengganti Bahan Bakar Minyak Pada Masyarakat Pedesaan di Kabupaten Pamekasan Jawa Timur Novel Karaman; Luluk Edahwati; Ndaru Adyono; Tria Puspa Sari; Wahyu Dwi Lestari; Radissa Dzaky Issafira; Ahmad Khairul Faizin; Wiliandi Saputro
Abdi-mesin: Jurnal Pengabdian Masyarakat Teknik Mesin Vol. 2 No. 2 (2022): Abdimesin
Publisher : Program Studi Teknik Mesin Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/abdi-mesin.v2i2.70

Abstract

Abstrak-Teknologi biogas dari kotoran sapi merupakan salah satu alternatif sumber energi pengganti bahan bakar minyak pada masyarakat pedesaan sekaligus mengatasi masalah limbah organik di pedesaan sebagai sumber energi alternatif biogas. Biogas merupakan hasil proses pembusukan limbah organik secara anaerobic menjadi energi yang berfungsi sebagai pengganti bahan bakar minyak. Masyarakat desa Pancong Kecamatan Waru Timur di kabupaten Pamekasan sebagian besar mata pencaharian sebagai petani dan peternak. Khususnya petani/peternak di desa Pancong memiliki 2-3 sapi dan tidak menyadari bahwa kotoran sapi dapat menjadi bahan bakar alternatif (biogas). Metode menggunakan penyuluhan/pelatihan tentang pembuatan dan instalasi biogas sederhana, serta pendampingan dalam memproduksi biogas. Pelatihan diikuti oleh peternak/petani dan dilakukan di lokasi peternak desa Pancong kecamatan Waru Timur kabupaten Pamekasan. Perolehan produksi biogas dari kotoran sapi menghasilkan biogas yang terbentuk dialirkan ke penampung gas plastik. Gas terbentuk setelah diisi campuran kotoran sapi dan air (1:1), dan tercapai pada hari ke-6. Selanjutnya gas dapat dimanfaatkan sebagai bahan bakar. Setelah berproduksi perlu pengisian setiap hari. Biogas dapat digunakan untuk memasak sebagai kebutuhan sehari-hari dan produk samping (slurry) dapat dimanfaatkan untuk pupuk organik dan pakan ikan.
Analysis of effect Magnesium Ammonium Phospate (MAP) Concentration on Struvite Morphology in A Vertical Reactor Luluk Edahwati; Sutiyono; Atika Andini; Wahyu Dwi Lestari; Tria Puspa Sari; Ndaru Adyono; Novel Karaman
BIOMEJ Vol. 1 No. 1 (2021): BIOMEJ
Publisher : UPN 'Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Struvite was a white crystal known as Magnesium Ammonium Phosphate Hexahydrate (MgNH4PO4.6H2O). In industry, struvite was found in the pipes crust which the hot fluid through passes. Struvite is often used as fertilizer because it contains phosphate content. The one of benefits of struvite crystals is slow release fertilizer, so it can be more durable, which is good for the growth of the plants. The Precipitation technology is currently one of the most widely applied technologies in struvite formation. The process of forming struvite is carried out by using a vertical reactor. The process started by mixing the equimolar solutions of MgCl2, NH4OH, and H3PO4 with a concentration ratio of 1: 1: 1 and 1: 1: 2. Theprocess was carried out with the condition at the 30°C while the air inlet rate was 1.25 liters/min. The pH of the solution is pH 9 and controlled using NaOH solution. The process was carried out in the steady state condition. Then the solution was filtered and solid was dried at room temperature for 48 hours. From this study, the concentration ratio of 1:1:2 was obtained the best of struvite compared to the others ratio. The solid was analyzed by using the SEM-EDX instrument. The morphology of struvite was formed an irregular pyramid like crystal or commonly referred to as an authorhombic shape.
SEM Analysis of UHMWPE for Biomedical Application Wahyu Dwi Lestari; Luluk Edahwati; Tria Puspa Sari; Ndaru Adyono; Novel Karaman
BIOMEJ Vol. 1 No. 1 (2021): BIOMEJ
Publisher : UPN 'Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The objective of this study is to investigate the wear mechanism of UHMWPE acetabular liner. There were three samples of acetabular liner with variations without crosslink, with crosslink doses of 50 kGy and 100 kGy which were subjected to a wear testing process. The wear test was carried out using a Tribometer wear testing machine with a total of 30,000 cycles and a load of 800N. Microstructure analysis was performed using scanning electron microscopy (SEM). The results show that the surface of the UHMWPE acetabular liner with the crosslink treatment is smoother than the untreated one. This shows that UHMWPE with crosslink treatment has a lower wear rate, where the greater the crosslink dose the lower the wear rate. The wear mechanism that occurs in this study is the third body abrasion which leads to adhesive wear.
Perancangan Mesin Pengupas dan Pemarus Batang Ubi Kayu: Konsep Rancangan Mesin Novel Karaman; Ndaru Adyono; Tria Puspa Sari; Luluk Edahwati; Wahyu Dwi Lestari Edahwati
BIOMEJ Vol. 1 No. 1 (2021): BIOMEJ
Publisher : UPN 'Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Indonesia is the fifth largest cassava-producing country, where the national cassava production per year reaches 23 million tons. On the other hand, the organic waste in the form of cassava stems with the potential to use a large alpha-cellulose stem content. Alpha-cellulose is a much-needed biomass material in the field of industry and renewable energy sources. Highquality alpha-cellulose is produced from cassava stem fibers that have separated the outer shell. Research in the design of machines capable of processing stripping and sequencing cassava stems simultaneously has the potential to increase the productivity of making Alpha-cellulose raw materials for industrial needs. The prototype design peeling machine and a cassava rod pucker using the engine element approach is expected to produce an engine design that has the specification of a 0.5 HP 3-phase main drive motor with a 1400 rpm rotation consisting of 2 pulley transmissions and a gearbox ratio of 60.
Analysis of effect Magnesium Ammonium Phospate (MAP) Concentration on Struvite Morphology in A Vertical Reactor Edahwati, Luluk; Sutiyono; Andini, Atika; Dwi Lestari, Wahyu; Puspa Sari, Tria; Adyono, Ndaru; Karaman, Novel
BIOMEJ Vol. 1 No. 1 (2021): BIOMEJ
Publisher : UPN 'Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/biomej.v1i1.22

Abstract

Struvite was a white crystal known as Magnesium Ammonium Phosphate Hexahydrate (MgNH4PO4.6H2O). In industry, struvite was found in the pipes crust which the hot fluid through passes. Struvite is often used as fertilizer because it contains phosphate content. The one of benefits of struvite crystals is slow release fertilizer, so it can be more durable, which is good for the growth of the plants. The Precipitation technology is currently one of the most widely applied technologies in struvite formation. The process of forming struvite is carried out by using a vertical reactor. The process started by mixing the equimolar solutions of MgCl2, NH4OH, and H3PO4 with a concentration ratio of 1: 1: 1 and 1: 1: 2. Theprocess was carried out with the condition at the 30°C while the air inlet rate was 1.25 liters/min. The pH of the solution is pH 9 and controlled using NaOH solution. The process was carried out in the steady state condition. Then the solution was filtered and solid was dried at room temperature for 48 hours. From this study, the concentration ratio of 1:1:2 was obtained the best of struvite compared to the others ratio. The solid was analyzed by using the SEM-EDX instrument. The morphology of struvite was formed an irregular pyramid like crystal or commonly referred to as an authorhombic shape.
Co-Authors Ahmad Khairul Faizin Andini, Atika Atika Andini Billah, Mu’tasim DWI LESTARI, WAHYU Edahwati, Wahyu Dwi Lestari Edra Nugraha, Reva Faizin, Ahmad Khairul Fitriasari, Rima Galih Suci Widyanto Hidayat, Rifqi Rahman Husna Zaka Anshori Issafira, Radissa Dzaky Kamaliatul Fajria Lucky Indrati Utami Luluk edahwati Luluk Edahwati Mardianingrum, Putri Mu'tasim Billah Nana Dyah S Nana Dyah Siswati, Anwar Zain and Mohammad Ndaru Adyono Ndaru Adyono, Ndaru Puspa Sari, Tria Radissa Dzaky Issafira Radissa Dzaky Issafira Ridhwan Aprilian, Muhammad Rifaldi, Kornelius Rima Fitriasari Sani Sari, Tria Puspa Silvana Dwi Nurherdiana SRIE MULJANI Sutiyono Titi Susilowati Titi Susilowati Tria Puspa Sari Wahyu Dwi Lestari Wahyu Dwi Lestari Wahyu Dwi Lestari Edahwati Widayanto, Galih Suci Wiliandi Saputro Wiraya, Wira Arta