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PENGARUH PENAMBAHAN GLISEROLTERHADAP SIFAT KEKUATAN TARIK DAN PEMANJANGAN SAAT PUTUS BIOPLASTIK DARI PATI UMBI TALAS Rinaldi Febrianto Sinaga; Gita Minawarisa Ginting; M. Hendra S Ginting; Rosdanelli Hasibuan
Jurnal Teknik Kimia USU Vol. 3 No. 2 (2014): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (479.926 KB) | DOI: 10.32734/jtk.v3i2.1608

Abstract

Bioplastics are a type of plastic made ​​from renewable biomass sources, such as vegetable oil, corn starch, pea starch, and microbiota. Starch from tubers of talas (Colocasia esculenta) as a potential raw material for bioplastics by using glycerol as plastizicer. The purposes of the research are to know effect of adding glycerol to the properties of tensile strength and elongation at break bioplastic from starch taro tubers. In this research, the manufacture of bioplastics using casting methode with variations of starch solution (0,2 w/v, 0,3 w/v, and 0,4 w/v). The next additions to vary the volume of glycerol (1 % v, 2 % v, and 3 % v) and heating temperature of gelatin formation (60oC, 70oC, and 80oC). The results showed that bioplastics made ​​from taro tuber starch has gelatinization temperature of 70oC. The addition of glycerol volume effect value of tensile strength and elongation at break of bioplastics. Increasing volume of glycerol will decrease tensile strength but increase elongation at break value. The best of bioplastics in this research is a variation of starch bioplastic 0,3 w/v, addition of 1 % v glycerol at a temperature of 70°C with a value of tensile strength is 18,4992 MPa and elongation at break value is 2,1290%.
PENGARUH RASIO EPOKSI/AMPAS TEBU DAN PERLAKUAN ALKALI PADA AMPAS TEBU TERHADAP KEKUATAN BENTUR KOMPOSIT PARTIKEL EPOKSI BERPENGISI SERAT AMPAS TEBU Akhmad Nadji Shabiri; Rizky Salaam Ritonga; M. Hendra S. Ginting
Jurnal Teknik Kimia USU Vol. 3 No. 3 (2014): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (603.417 KB) | DOI: 10.32734/jtk.v3i3.1638

Abstract

This study was aimed to determine the effect of alkali treatment and fiber composition on the impact strength properties of epoxy composites filled with bagasse fiber. Composites are made by hand lay-up method by mixing epoxy and bagasse fiber with variation of volume ratio between matrix and filler are 100/0, 70/30, 60/40, and 50/50 (v / v) and the concentration of NaOH slolution in the alkali treatment are 0% , 1%, 2%, and 3%. Mechanical propertie tested was impact strengthand analized by SEM analysis. The results obtained from this study was the maximum impact strength value obtained of the composite was on the composition 70:30 with 2% NaOH concentration was 8,005 kJ/m2.
Pemberdayaan Masyarakat Melalui Budidaya Maggot Dengan Sisa Sampah Organik Sebagai Alternatif Pakan Ikan Di Desa Sempajaya, Kecamatan Berastagi, Kabupaten Karo Rivaldi Sidabutar; Sheylin Wimora Lumban Tobing; Muhammad Hendra Sahputra Ginting; Mersi Suriani Sinaga; Mhd. Rivaldi Syahputra; Debora Kristina Simbolon; Juan Akmal Nasution; Muhammad Rizky Pulungan
ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Vol. 4 No. 3 (2023): Oktober
Publisher : CERED Indonesia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53695/jas.v4i3.976

Abstract

Pengabdian masyarakat merupakan suatu wujud gerakan dalam memberikan kontribusi kepada masyarakat agar memberikan solusi yang inovatif terhadap permasalahan yang ada di masyarakat setempat dan berguna bagi mereka. Sampah merupakan masalah yang selalu ada dalam kehidupan sehari hari baik di kota maupunn di desa. Rata-rata kota-kota besar di Indonesia menghasilkan puluhan ton sampah setiap harinya. Sampah yang dibuang di tempat sampah tanpa tindakan lebih lanjut atau ditumpuk begitu saja akan menyebabkan penumpukan dan mencemari lingkungan. Sampah digolongkan menjadi dua, yaitu sampah organik dan sampah anorganik. Sampah organik adalah sampah yang digolongkan dari bahan bahan organik seperti tumbuhan, sisa makanan, sampah buah buahan dan lain sebagainya. Umumnya masyarakat pedesaan memiliki sampah organik dari hasil perkebunan. Minimnya pengetahuan mengenai penanganan sampah organik menjadi salah satu faktor yang menyebabkan masalah ini terjadi. Oleh karena itu, diperlukan penyuluhan bagi masyarakat desa tentang alternatif pengolahan sampah organik yang ramah lingkungan dan memberikan berbagai keuntungan lainnya. Maggot merupakan larva pengurai sampah organik yang ramah lingkungan dan memberikan keuntungan berupa kasgot (bekas maggot) sebagai pupuk organik. Selain itu, larva ini juga dapat dijadikan sebagai pakan ikan yang baik karena maggot mengandung banyak lemak yang tinggi dan nutrisi lainnya yang baik bagi ikan. Penggunaan maggot sebagai pengurai sampah organik adalah salah satu alternatif yang inovatif untuk mengatasi permasahan sampah organic di desa binaan. Desa Sempajaya sendiri merupakan desa binaan yang telah dijadikan tempat untuk penyuluhan serta pengabdian dari Universitas Sumatera Utara kepada masyarakat karena masih ada beberapa hal yang perlu ditingkatkan, maka penyuluhan kembali dilakukan di desa ini.
Modification of Cyclone Separator Based on IOT Arduino Microcontroller with Activated Carbon from Cocoa Shell Waste as a Tool for Controlling Air Pollution Thoriq; Hendra Sahputra Ginting, Muhammad; Fiki Agustianda; Fauziah Khairunnisa; Izharul Haq; Siregar, Afrylian Fauzan; Nasution, Juan Akmal
DINAMIS Vol. 12 No. 1 (2024): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v12i1.15884

Abstract

Air pollution is the condition of air that is contaminated by the presence of materials, substances or polluting components. One of the causes of air pollution is the combustion or inseneration process because the residue of the process can be released into the air. Based on ISPU, there are five main pollutants, namely: carbon monoxide (CO), sulfur dioxide (SO2), nitrogen oxides (NOX), surface ozone (O3), and dust particles (PM10). This study was conducted to reduce the emission of gases. The use of modified cyclone with adsorbent pipe tube from cocoa husk can increase the efficiency of combustion results with adsorption pipe tube modified cyclone. From the results of the study it was found that emissions from incineration can be controlled with APPU in the form of a cyclone. The use of cyclone alone can reduce NOX and CO levels with a reduction in NOX emissions to 53% and CO to 96%. Both emission reductions are in line with the quality standards. However, the use of adsorption pipe tubes showed better efficiency and effectiveness.
Karakteristik dan Daya Hambat Mikroba Edible Film dengan Penambahan Filler Kulit Salak (Salacca zalacca) sebagai Pengemas Makanan Dalimunthe, Nisaul Fadilah; M. Thoriq Al Fath; S. Ginting, M. Hendra; Natasya, Tania; Pulungan, Khairunnisa Alifia
Jurnal Teknik Kimia USU Vol. 12 No. 1 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i1.10395

Abstract

An edible film serves to protect and improve food quality. One of the ingredients that can be used is pectin. However, edible films made from pectin have fragile mechanical properties, so snakefruit peel is added as a filler to improve mechanical properties. Edible films were prepared with concentrations from 0%, 2%, 3%, 4%, and 6% (wt), pectin, glycerol (C3H8O3), calcium hloride dihydrate (CaCl2.2H2O) and Tween 80. It was stirred with magnetic stirrer, printed and dried in an oven to test the properties. As a result, the addition of snakefruit peel affected the thickness, swelling, degradation and antimicrobial. The thickness obtained is between 0.024 mm - 0.0172 mm. The swelling results obtained ranged from 0.0409 - 0.0137. The best degradation results were obtained on day 5th, with varying concentrations of 6% snakefruit peel. The results of the study on antimicrobial activity showed that maximal inhibition with varying concentrations of 6% snakefruit peel with an inhibition zone of 20.8 mm.
Penentuan Kadar Flavonoid dan Kandungan Fitokimia Ekstrak Kulit Bawang Merah (Allium cepa L) dengan Berbantukan Microwave sebagai Potensi Bahan Aktif Tabir Surya Dalimunthe, Nisaul Fadilah; M. Thoriq Al Fath; Taslim; S. Ginting, M. Hendra; Farah Nurul Alifia; Berta, Grace Adela
Jurnal Teknik Kimia USU Vol. 13 No. 2 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i2.16318

Abstract

The skin serves as a protective barrier against dust and ultraviolet (UV) radiation. Excessive UV exposure is associated with accelerated skin aging, erythema, hyperpigmentation, and carcinogenesis. This study aimed to quantify flavonoid concentrations and characterize phytochemical constituents in shallot skin extracts for their potential as active ingredients in sunscreen formulations. Shallot skin was subjected to microwave assisted extraction using 70% ethanol as the solvent. Phytochemical screening revealed the presence of flavonoids, tannins, saponins, and alkaloids in the extract. Flavonoid content was determined via UV-Vis spectrophotometry, yielding 36.33 mgQE/g. The high flavonoid concentration observed in shallot skin extract suggests its potential efficacy as an active ingredient in sunscreen formulations.
BIOPLASTIK BERSUMBER BAHAN SELULOSA TANDAN KOSONG (TKKS) DAN PELEPAH KELAPA SAWIT (PKS) Brahmana, Yusuf; Ginting, Muhammad Hendra; Rangkuti, Ika Ucha Pradifta
Jurnal Agro Fabrica Vol. 3 No. 1 (2021): Juni 2021
Publisher : Institut Teknologi Sawit Indonesia (ITSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jaf.v3i1.171

Abstract

One of the environmental problems in Indonesia is plastic waste which is made from synthetic materials. This synthetic plastic waste is very difficult to decompose in the soil and takes 300-500 years to completely decompose. Therefore, bioplastic is an alternative to this problem. The purpose of this journal review is to calculate the cellulose potential of empty bunches (EFB) and oil palm midribs (PKS) through several processes, namely the delignification process and the bleaching process. ) 31.7%. So it can be said that empty fruit bunch cellulose (TKKS) and palm fronds (PKS) have enormous potential to meet the needs of bioplastic raw materials.
Pembuatan Bahan Bakar Alternatif Dari Sampah Sayuran Hasil Pertanian Menggunakan Alat Distilator di Desa Sampajaya, Kecamatan Berastagi, Kabupaten Karo: Indonesia Sidabutar, Rivaldi; Trisakti, Bambang; Irvan, Irvan; Al Fath, Muhammad Thoriq; Ginting, Muhammad Hendra Sahputra; Hanum, Farida; Taslim, Taslim; Sitepu, Rafael Aginta; Alamsyah, Vandria; Rasyid, Nashfin Nazli; Sinabang, Juwita Lestari
Jurnal Abdimas Madani dan Lestari (JAMALI) Volume 07, Issue 01, Maret 2025
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jamali.vol7.iss1.art19

Abstract

Unsold vegetable waste from agricultural produce often rots and ends up being discarded at landfills, increasing waste volume and potentially causing environmental problems. To address this issue, vegetable waste can be processed into useful and marketable products such as bioethanol. Bioethanol is a renewable energy source obtained through the fermentation of biomass, including vegetable waste such as potatoes, tomatoes, carrots, mustard greens, and cabbage. In this community service program, an e-Bio production unit with a processing capacity of 5 liters has been designed, utilizing vegetable waste as raw material. The unit consists of pre-treatment equipment, a fermenter, and a distillation unit. The pre-treatment equipment includes an initial cooking tank, a crusher, and a pressurized tank. The fermenter tank is equipped with two manual paddle-type agitators with a diameter of 30 cm. Meanwhile, the distillation tank is made of stainless steel and equipped with a heater to heat the fermented solution and a cooling water tank to cool the evaporated e-Bio. The unit achieves a distillation efficiency of 95% with a production rate of 0.475 L/hour, producing 0.95 liters of ethanol after two hours of operation. The goal of this program is to implement the e-Bio production unit by utilizing vegetable waste as raw material, increase community or farmer income through e-Bio sales, and reduce the environmental impact caused by vegetable waste disposal.
Penyediaan Biofilm Berbasis Pektin Kulit Buah Cempedak (Artocarpus champaden L.) Terisi Carboxymethyl Cellulose dengan Variasi Konsentrasi Gliserol Untuk Menurunkan Susut Bobot Buah Mangga Batu Bara, Fachreza Amri; Pratama, Muhammad A.; Ginting, Muhammad Hendra S.; Harahap, Hamidah; Dalimunthe, Nisaul Fadilah; Al Fath, Muhammad Thoriq
Jurnal Teknik Kimia USU Vol. 14 No. 1 (2025): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v14i1.18721

Abstract

Cempedak peel contains 38.85% pectin compounds and has the potential to become biofilm raw material. The characteristics of pectin-based biofilm can be improved by the addition of a glycerol plasticizer. This study aims to determine the effect of variations in glycerol concentration (0%; 3%; 5%; 7% and 9%) on biofilm charactersitics and biofilm application on the shelf life of mango fruit. Pectin was extracted using 5% citric acid at 85°C or 90 minutes. Biofilms were applied on mango fruit for 8 days. Analysis of pectin compounds showed a yield 22.09%; ash content 7.40%; equivalent weight 588.235 mg; methoxyl content 6.20%; galacturonic acid content 36.12%. Analysis of physical properties and biofilm application on mango fruit showed a density value of 2.833 g/mL; water solubility 79.41%; mango weight loss of 33.47%; and a deacrease in vitamin C of 5%. SEM-EDX analysis showed the pectin particles were homogeneous fine grains and dominated by the element of oxygen (O) 88.84%. FTIR analysis of cempedak fruit peel pectin and biofilm showed functional groups of O-H; C-H (methyl); C=O; C-O; C-C.
ECO-WAVE MAG: Inovasi Teknologi Pengeringan Maggot Berbasis Circular Economy pada Mitra (Black Soldier Fly) BSF Ratna Medan: Pengabdian Hasibuan, Gina Cynthia Raphita; Fath, Muhammad Thoriq Al; Sidabutar, Rivaldi; Ginting, Muhammad Hendra Sahputra; Angel, Angel; Nasution, Dea Amanda Sari; Catherine, Ester Sara; Nasution, Juan Akmal; Alamsyah, Vandria; Fajar, Muhammad
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 2 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 2 (October 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i2.3807

Abstract

The increase in organic waste generation in Indonesia is driving the need for more sustainable waste management innovations, including through the bioconversion of maggots as an alternative protein source. However, at a business scale like Ratna's Black Soldier Fly (BSF), the maggot drying process remains a major obstacle because conventional methods produce inconsistent quality, require long drying times, and are energy-intensive. A community service project titled ECO-WAVE MAG was introduced to address this issue by implementing a microwave dryer as an appropriate technology. Activities included field surveys, designing and modifying the drying system, technical testing on fresh maggots with a moisture content of around 70 percent, and providing training and operational assistance to partners. Test results showed that the microwave dryer was able to reduce drying time by up to 70 percent, produce a stable final moisture content of 8–10 percent, and maintain the homogeneity and nutritional quality of the dried maggots. This technology also proved to be more energy efficient and able to increase production capacity and product shelf life.