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All Journal Jurnal Sains dan Seni ITS Konversi Jurnal Abdi Masyarakat (JAM) Jurnal Riset Teknologi Pencegahan Pencemaran Industri REACTOR : Journal of Research On Chemistry And Engineering Journal of Industrial Community Empowerment Jurnal Teknologi Kimia Mineral
Dennis Farina Nury
Program Studi Teknik Kimia, Institut Teknologi Sumatera
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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The Effect of Binahong (Anredera cordifolia (Ten.) Steenis) Medicinal Plant Extract Addition on Glucose Detection Dennis Farina Nury; Tri Widjaja; Fredy Kurniawan
Jurnal Sains dan Seni ITS Vol 8, No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.728 KB) | DOI: 10.12962/j23373520.v8i2.49944

Abstract

The potential of binahong (Anredera cordifolia (Ten.) Steenis) medicinal plant extract as glucose biosensor have been analyzed using cyclic voltammetry (CV) method. Glucose biosensor was prepared by modified electropolymerization technique of polypyrrole (PPy) to the active materials, such as binahong (Anredera cordifolia (Ten.) Steenis on the surface of gold electrode. Modified pyrrole polymerization was conducted at potential -1.3 to +1.3 V using voltammetry method with sweep rate 50mV/s for 30 cycles at pH 6.8. The performance of the modified sensor was tested in samples: glucose, urea, ascorbic acid and uric acid at the same concentration 10 mM, respectively. All samples were analysed using cyclic voltammetry method from -1.3 to +1.3 V with sweep rate of 50 mV/s in 0.1 M phosphate buffer at neutral condition (pH 7) room temperature. The best response of polypyrrole-binahong (Anredera cordifolia (Ten.) Steenis)-modified gold electrode was obtained during glucose measurement. No response detected from urea, ascorbic acid and uric acid. The result was proved that the modified electrode has a good potential for selective electrochemical sensor in determination of glucose.
Pemisahan Butanol dari Campuran ABE Menggunakan Software Aspen Plus: Pengaruh Refluks Rasio terhadap Kandungan Butanol Dennis Farina Nury; Pramahadi Febriyanto; Lisa Anggraini Ismi; Rahmat Taufik Hidayah
REACTOR: Journal of Research on Chemistry and Engineering Vol 3, No 1 (2022): Published in June 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v3i1.43

Abstract

Production of acetone-butanol-ethanol (ABE) through the fermentation process is one alternative that needs to be developed. Less economical in the ABE fermentation process is the difficulty of the separation process from the fermentation product and the by-products of the reaction. Among the separation process methods, such as extraction, distillation, adsorption, and gas stripping, the distillation method is still the most widely used method in the ABE separation process. The purpose of this study was to provide recommendations for predicting good ABE separation and producing optimum operating conditions to produce high % butanol content. Which is then simulated using Aspen Plus V11 software. This study varied the reflux ratio in the distillation column and the decanter operating temperature. The results showed that butanol purity reached 90.33% in the radfrac 1 column operated at a pressure of 1.3 atm with a reflux ratio of 5, the location of the 7th feed stage and the number of stages 11. Then proceed to the purification stage in the radfrac column 2 which is operated at a pressure of 2 atm with a reflux ratio of 5, the location of the 4th stage feed and the number of stages 5. The decrease in the reflux ratio of the radfrac column causes a decrease in the butanol content at the bottom so that the purity of butanol also decreases and decreases % recovery or recovery of butanol. This is also followed by the location of the feed stage, which is getting higher, and the number of stages is increasing.
Pengaruh Kondisi Temperatur Pirolisis Tandan Kosong Kelapa Sawit Terhadap Komposisi Produk Tar Dennis Farina Nury; Muhammad Zulfikar Luthfi; Siti Zullaikah
REACTOR: Journal of Research on Chemistry and Engineering Vol 3, No 1 (2022): Published in June 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v3i1.47

Abstract

Oil palm empty fruit bunch (EFB) is one of the biomass wastes that have a great potential of a bioenergy resource due to its natural properties, such as high calorific value. The conversion of EFB biomass into valuable biofuels can achieved through biochemical and thermochemical processes. Tar (bio-oil), the liquid product from the pyrolysis is one of the most attractive biofuels. The study aims to determine the effect of temperature process of pyrolysis EFB on its tar production under droptube reactor. The results showed that maximum tar yield was 43,80% obtained at 500 °C. The EFB tar produced at 500 °C was also determined to have a higher of phenol compound at 51,9%. The high phenolic content indicates its potential to be used for the production of renewable phenolic resins. Hence, the present work of pyrolysis of EFB presents itself as a promising method to produce phenol rich tar (bio-oil) from biomass waste.
Trauma Healing Bagi Anak-Anak SDN 4 Sipa Rayo Jorong Bunga Tanjuang Terdampak Korban Gempa Pasaman Feerzet Achmad; Melani Putri; Agnesia Putri Rini; Dennis Farina Nury; Suhartono Suhartono; Suharto Suharto
Jurnal Abdi Masyarakat (JAM) Vol 8, No 1 (2022): JAM (Jurnal Abdi Masyarakat)-September
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jam.v8i1.15949

Abstract

Bencana gempa bumi yang menimpa Kabupaten Pasaman Barat mengakibatkan banyak kerugian yang dapat dirasakan secara fisik maupun non fisik. Kerugian berupa non fisik yang terjadi adanya trauma yang dimiliki terutama terjadi pada anak-anak pasca bencana gempa. korban yang selamat dan luka mengalami kerugian non fisik berupa trauma sehingga terganggu secara mental serta psikologis. Traumatik yang terjadi pada korban bencana gempa ini, bukanlah masalah yang dapat dibiarkan berlarut-larut. Korban bencana harus melakukan pemulihan trauma atau trauma healing, agar korban dapat melanjutkan kehidupan secara normal sebagaimana mestinya sebelum adanya bencana yang terjadi. Tujuan KKN Tematik ini dilakukan untuk menciptakan suasana yang lebih ceria dan dukungan secara psikis sehingga dapat memulihkan trauma yang terjadi setelah bencana gempa bumi. Metode KKN yang dilakukan ialah dengan mewujudkan bentuk nyata untuk pemulihan trauma melalui permainan (play therapy) dan dance therapy agar dari kegiatan ini diharapkan menghilangkan rasa takut yang terjadi serta meminimalisir kesedihan atas trauma yang dialami, agar anak-anak dapat kembali dalam keadaan ceria dan bahagia.
Penyuluhan dan Pembuatan Sabun Cair Berbasis Minyak Goreng Bekas di Desa Trisnomaju, Kabupaten Pesawaran, Lampung Selatan Dennis Farina Nury; Wika Atro Auriyani; Feerzet Achmad; Muhammad Zulfikar Luthfi
Journal of Industrial Community Empowerment Vol 1, No 1 (2022): Published in April 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (729.693 KB)

Abstract

Due to the many uses of cooking oil for household needs, it generates a huge residue called waste cooking oil or jelantah. Waste cooking oil can cause health and environmental problems. The conversion of waste cooking oil will help to reduce environmental damage. One of the conversion is making the waste cooking oil into valuable product as liquid soap. Liquid soap is made from Potassium hydroxide (KOH) reaction that produces salt (soap), water and glycerin. The saponification process was produced liquid soap using hydrolysis of waste cooking oil into fatty acids and glycerol in the KOH to hydrolyze. The waste cooking oil (jelantah) can ben converted into liquid soap by using the mixture of waste cooking oil, KOH solution, water and scent oil. This study aimed to educate the housewives about the problems of using waste cooking oil repeatly and to make liquid soap with a short training in Desa Trisnomaju, Kabupaten Pesawaran, Lampung Selatan. This activity consists of discussions, demonstrations and hands-on practice liquid soap. The results showed the the housewives were verry happy and enthusiastic during training. It can be concluded that the housewives are good and focus in making liquid soap, were increased in survey score from pretest to post test, 59,72% to 81,67%, respectively.
Implementasi Pupuk Cair Organik Masaro Terhadap Produktivitas Jagung Manis di Sabah Balau Dennis Farina Nury; Arysca Wisnu Satria; Deviany Deviany; Mustafa Mustafa; Akhmad Zainal Abidin
Journal of Industrial Community Empowerment Vol 2, No 1 (2023): Published in April 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/jice.v2i1.150

Abstract

This community service activity aims to increase corn production in Sabah Balau using POCI (Special Liquid Organic Fertilizer) products from Masaro. POCI is used as an organic fertilizer and its farming produces a higher production number, higher quality product, faster production rate while its production cost is lower. On the other hand, the problem of Indonesia is that national agriculture is stuck in inorganic chemical fertilization that has an impact on accelerating the degradation of agricultural land fertility. This matter can occur due to various problems, especially the culture of using chemical fertilizers that have been going on for too long. The activities carried out include socializing about recycling organic waste with POCI Masaro, conducting outreach activities about the benefits of POCI Masaro and practicing composting for corns. The results showed the enthusiasm of the community in participating to make POCI Masaro and demonstration plots. The output of this activity: Increased corn production, increased of knowledge and skills of community in making and applying POCI Masaro on plant and motivation of farmers to independently develop alternative organic fertilizers that are in accordance with farmers' needs.
Biosynthesis of silver nanoparticles (AgNP) using leaves extract of Jatropha Curcas L. Dennis Farina Nury; Pramahadi Febriyanto; Amalia Sekar Arum; Sherina Mayastuti; Muhammad Zulfikar Luthfi
Konversi Vol 12, No 2 (2023): OKTOBER 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v12i2.16610

Abstract

Due to the increased demand for ecologically friendly material synthesis techniques, biosynthesis of nanoparticles has drawn a lot of attention. It has been claimed that an environmentally benign method for producing silver nanoparticles (AgNPs) efficiently can be achieved utilizing leaves extract of the multifunctional plant Jatropha curcas. Maximum absorption were obtained from different types of solvents, in distilled water resulted at wavelength 428-434, meanwhile in ethanol 96% solvent, maximum absorption was obtained at wavelength 338-340 nm by using UV-Vis spectrophotometer, respectively. The results of FTIR formed on silver nanoparticles are O-H functional groups with distilled water and O-H functional groups, and C-O with 96% ethanol solvent. The particle sizes formed in distilled water and 96% ethanol solvents were 104.6 nm and 110.7 nm respectively with PI values of 0.341 and 0.644. Based on the results, (AgNPs) passes the nanoparticle range caused by agglomeration. It can be interpreted that the results of this synthesis are fine particles.
Pengolahan Kelapa Menjadi Virgin Coconut Oil (VCO) dengan Metode Fermentasi Sederhana Dennis Farina Nury; Yunita Fahni; Reni Yuniarti; Feerzet Achmad; Deviany Deviany; Yeni Variyana
Journal of Industrial Community Empowerment Vol 2, No 2 (2023): Published in October 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/jice.v2i2.215

Abstract

Coconut plant is frequently referred to as the plant of life since every part of it may be utilized and turned into a product. One of the commercial processed product by coconut is virgin coconut oil (VCO), which has many benefits to health properties. VCO is extracted from coconut milk from coconut fresh. The introduction of virgin oil (VCO) to partners aimed about VCO's advantages and development of appropriate technology that can be applied to local communities in Negeri Katon, Lampung Selatan. This community service activity program introduced fermentation method using yeast to convert coconut milk into VCO. The activity were conducted in three steps: i.e presentation of VCO process production and discussion, demonstration of making VCO together, and evaluation based on pre and post-test form results. Several analysis have been conducted including the percentage yield, density, viscosity and pH of the VCO. The evaluation of this activity was obtained from pre and post-test results. The results of the pre-test showed that among 50% the people of Negeri Katon really needs to the activity of making VCO by fermentation together. Based on the highest post-test result of 91%, it can be concluded that the VCO-making activities are very useful. Further development of activities, such as intensive practice in making VCO and training in packaging and selling VCO is very needed. Based on the results obtained, it can be concluded that the activity of making VCO by fermentation for the community of Negeri Katon is very necessary to be carried out in terms of utilizing coconut into VCO and creating business opportunities for the future.
APLIKASI EKSTRAK PUPA BLACK SOLDIER FLY (BSF) SEBAGAI SUMBER PRODUKSI KITIN Dennis Farina Nury; Putri Jesika Adelia; Khofifah Anggitiya Ningrum; Muhammad Zulfikar Luthfi
JURNAL TEKNOLOGI KIMIA MINERAL Vol 2 No 2 (2023): JURNAL TEKNOLOGI KIMIA MINERAL
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat Politeknik ATI Makassaar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61844/jtkm.v2i2.519

Abstract

Kitin merupakan polimer karbohidrat alami kedua yang paling melimpah setelah selulosa serta dianggap sebagai sumber biologis bahan bakar nabati dan senyawa fungsional bernilai tambah tinggi lainnya yang dapat menggantikan sumber energi kimia. Teknologi pembiakan massal Black Soldier Fly (BSF) menjadi semakin populer di seluruh dunia. Karena kemampuannya untuk mengubah limbah organik menjadi biomassa larva dengan cepat, BSF telah menjadi salah satu sumber potensi untuk produksi kitin. Kitin dari pupa BSF dapat diekstraksi dengan proses kimia sederhana menggunakan tahapan demineralisasi, deproteinasi dan penghilangan pigmen. Penelitian ini menggunakan 2 variasi pelarut (asam dan basa) pada tahapan deproteinasi dan demineralisasi. Variasi 1 dihasilkan rendemen kitin sebesar 19.87 % dengan deproteinasi menggunakan 3 M NaOH 5% (v/v) selama 6 jam dan demineralisasi menggunakan 1 M HCl 1% (v/v) selama 1 jam. Variasi 2 dihasilkan rendemen kitin sebesar 10.62% dengan deproteinasi menggunakan HCl 2 M 1% (v/v) selama 6 jam dan demineralisasi menggunakan 2 M NaOH 5% (v/v) selama 36 jam. Pada tahapan penghilangan pigmen, sampel dari deproteinasi direndam dalam larutan KMnO4 1% selama 1 jam dan kelebihan KMnO4 dihilangkan dengan K2C2O4 4%. Karakterisasi kitin menggunakan FTIR menunjukkan sampel pupa BSF adalah bentuk α dengan perolehan amida yaitu sebesar 3399 cm-1, dan ikatan antara NH dan gugus karbonil 1573 cm-1.  Dapat disimpulkan bahwa BSF menjadi potensi sumber kitin di masa mendatang.
Removal of Ammonium and Phosphate from Synthetic Wastewater of Complex Fertilizer Industry Through Struvite Crystallization Process Muhammad Zulfikar Luthfi; Tjandra Setiadi; Dennis Farina Nury; Choerudin Choerudin
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 14 No. 2 (2023)
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2023.v14.no2.p23-32

Abstract

The complex fertilizer industry produces wastewater which contributes to the pollution of water bodies because it contains high levels of phosphate and ammonium concentrations and high TKN (Total Kjeldahl Nitrogen) which contains organic nitrogen. The organic nitrogen contained in the complex fertilizer wastewater is urea so it can be hydrolyzed to ammonium using the urease enzyme. The ammonium formed from the hydrolysis of urea will then react with magnesium and phosphate to form struvite, a crystal of Magnesium Ammonium Phosphate (MAP). The purpose of this study was to determine the effect of aeration and the enzyme urease in the removal of ammonium and phosphate in complex fertilizer synthetic wastewater through struvite precipitation. Struvite precipitation was carried out in a batch reactor which had a working volume of 0.5 L with variations in aeration rate, aeration time, and the addition of urease enzyme from Jack bean peas (Canavalia ensiformis). Residual ammonium and phosphate levels were analyzed and struvite crystal formation (MAP) was determined using Scanning Electron Microscope (SEM) and X-ray diffraction (XRD). The results showed that the aeration reactor was able to form struvite crystals and remove the ammonium and phosphate content in the synthetic wastewater of complex fertilizers. The removal of ammonium with a molar ratio of [Mg2+] : [NH4+] : [PO43-] 1:2:1 reached 61-77% at high aeration rates because a lot of ammonium was released into the air. The phosphate removal reached 99%. The urease enzyme was proven to be able to hydrolyze urea into ammonium and increase the pH value and affect the shape of the resulting struvite crystals. The precipitate product obtained was struvite crystals which were confirmed by analysis using SEM-EDX and XRD.
Co-Authors Agnesia Putri Rini Akhmad Zainal Abidin Amalia Sekar Arum Choerudin Choerudin Deviany Feerzet Achmad Fredy Kurniawan Khofifah Anggitiya Ningrum Lisa Anggraini Ismi Melani Putri Muhammad Zulfikar Luthfi Muhammad Zulfikar Luthfi Mustafa Mustafa Pramahadi Febriyanto Putri Jesika Adelia Rahmat Taufik Hidayah Reni Yuniarti Satria, Arysca Wisnu Sherina Mayastuti Siti Zullaikah Suharto Suharto Suhartono Suhartono Tjandra Setiadi Tri Widjaja Variyana, Yeni Wika Atro Auriyani Yunita Fahni