Article Per Year (5 Year)
p-Index From 2020 - 2025
1.383
P-Index
This Author published in this journals
All Journal Community Development Journal: Jurnal Pengabdian Masyarakat JURNAL KIMIA SAINTEK DAN PENDIDIKAN Jurnal ABDIMAS MUTIARA
Tarigan, Malemta
Unknown Affiliation
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Other

Published : 8 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 8 Documents
Search

 1 
PENGEMBANGAN USAHA KERANG BULU MENJADI SEDIAAN ABON DI DESA PEMATANG CENGAL KABUPATEN LANGKAT Sinaga, Lia Rosa Veronika; Tarigan, Malemta; Silalahi, Yosy Cinthya Eriwaty
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 6 (2023): Volume 4 Nomor 6 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i6.19630

Abstract

Pematang Cengal Village is located in Langkat Regency, North Sumatra, Indonesia. Because it is directly adjacent to the Palung Nipah river, the majority of the population are fishermen. Fur mussels are usually sold to clam collectors at relatively cheap prices. The purpose of this community service is to process feather clams into shredded shells so that they have a higher selling value compared to the sale of fresh shellfish. and has durable products with proper processing processes and can be simply done by the people of Pematang Cengal. When the activity was carried out, the people of Pematang Cengal were very happy with the new innovations to process shellfish into new products. So that fishermen's wives can fill their time to be more useful for their families, serving tastier and more nutritious dishes as well as shellfish products that are more durable in storage. If done simultaneously with other wives, it is hoped that it can be a business development for the community in Pematang Cengal to become one of the UMKM in Indonesia.
PEMBAGIAN MASKER DAN PENDIDIKAN KESEHATAN DI SEKOLAH DASAR TUNAS KARTIKA – 3 DESA LALANG Romatua Aruan, Dyna Grace; Siahaan, Maniur Arianto; Tarigan, Malemta
Jurnal Abdimas Mutiara Vol. 2 No. 2 (2021): JURNAL ABDIMAS MUTIARA
Publisher : Universitas Sari Mutiara Indonesia

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

Abstract

Kasus Covid-19 di Indonesia bertambah setiap hari. Munculnya Covid-19 mempunyai dampak bagi kesehatan cukup besar pada masyarakat. Virus ini penyebarannya bila bagian tubuh kita kontak langsung dengan orang yang mengidap virus ini termasuk barang-barang yang telah tercemar virus Covid-19. Tujuan dilaksanakan pendidikan kesehatan dan pembagian masker ini salah satu pencegahan agar mengurangi penularan karena wabah ini bukan sekedar pandemi biasa. Upaya pencegahan yaitu dengan menjaga jarak, memakai makser, dan mencuci tangan dengan sabun di air mengalir. Diharapkan dengan pengabdian masyarakat ini adalah mampu menekan atau memperkecil terjadinya penyebaran penularan virus covid-19 dengan cara memakai masker pada saat berkatifitas di luar rumah. Selain itu mengingatkan dan memberi informasi kepada kepala sekolah dan beberapa guru tentang pentingnya melakukan protokol kesehatan dan menerapkannya kepada peserta didik agar tidak tertular virus ini. Setiap orang harus memiliki komitmen yang teguh untuk setia selalu melindungi diri dan keluarga dengan mematuhi protokol kesehatan.
PELATIHAN PENGGUNAAN CHEMDRAW BAGI GURU SMA N 13 MEDAN Purwandari, Vivi; Harahap*, Mahyuni; Tarigan, Malemta
Jurnal Abdimas Mutiara Vol. 3 No. 1 (2022): JURNAL ABDIMAS MUTIARA (In Press)
Publisher : Universitas Sari Mutiara Indonesia

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

Abstract

Menggambar struktur suatu senyawa organik merupakan keahlian khusus yang harus dimiliki para ahli di bidang Ilmu Pengetahuan Alam (IPA) khususnya yang fokus pada bidang Kimia, Fisika, dan Biologi. Menggambar struktur secara manual menggunakan pulpen dan kertas memang mudah dan tidak menjadi masalah bagi sebagian besar guru IPA. Akan tetapi untuk menggambar struktur secara detail dan benar menggunakan sebuah komputer juga penting dan sangat diperlukan oleh untuk membuat soal dalam bentuk gambar dan reaksi, melakukan publikasi atau keperluan akademik lainnya. Berdasarkan uraikan di atas, maka perlu adanya suatu upaya untuk memberikan solusi alternatif yang mampu meningkatkan kemampuan para guru IPA untuk menggambar struktur kimia sederhana dan kompleks, dan menggambar peralatan laboratorium dengan menggunakan komputer dan software seperti ChemDraw. Selain itu diperlukan kegiatan pelatihan baik secara teori maupun praktek untuk meningkatkan keterampilan penggunaan software ChemDraw dan diharapkan akan mampu menciptakan suasana belajar yang lebih menyenangkan di dalam kelas dengan kehadiran software tersebut.
Pelatihan Pengolahan Limbah Biomassa Menjadi Biopestisida Di SMK Swasta Pertanian Paba-Binjai Purwandari, Vivi; Harahap, Mahyuni; Tarigan, Malemta
Jurnal Abdimas Mutiara Vol. 3 No. 2 (2022): JURNAL ABDIMAS MUTIARA (IN PRESS)
Publisher : Universitas Sari Mutiara Indonesia

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

Abstract

Kegiatan pengabdian masyarakat di SMKS Pertanian Panca Abdi Bangsa (PABA) Binjai bertujuan untuk memanfaatkan sampah tanaman, dan sampah lainnya yang ada di lingkungan SMKS Pertanian PABA. Sebelumnnya SMKS ini memiliki pengolahan sampah sendiri dengan membakar sampah di bak sampah. Kegiatan ini bertujuan untuk memanfaatkan sampah di sekitar sekolah menjadi biopestisida dengan cara mengkonversi sampah menjadi asap cair. Kegiatan dilakukan dengan cara memberikan informasi dan pengetahuan kepada guru, murid dan tenaga pendidik SMKS Pertanian PABA tentang proses pirolisis yang dapat mengkonversikan sampah menjadi karbon dan asap cair. Berdasarkan hasil pretest yang dilakukan terhadap peserta, diketahui bahwa Sebagian besar peserta tidak mengetahui mengenai pirolisis dan asap cair serta pemanfaatannya sebagai biopestisida. Penjelasan dilakukan menggunakan alat peraga yaitu reactor pirolisis. Hasil posttest menunjukkan seluruh peserta (100%) telah mengetahui dan mengerti Teknik pirolisis dalam membuat asap cair sebagai biopestisida. Berdasarkan data tersebut di atas, maka kegiatan pengabdian kepada masyarakat yang telah dilakukan di SMKS Pertanian PABA Binjai mengenai Pengolahan limbah biomasa menjadi biopestisida berhasil meningkatkan pemahaman masyarakat tentang informasi teknologi pirolisis yang telah diberikan.
PREPARASI FILM NANOKOMPOSIT POLIVINIL ALKOHOL (PVA)/NANOKARBON DARI CANGKANG BUAH SAWIT (NCCS) DENGAN METODE PENCAMPURAN LARUTAN Purwandari, Vivi; Tarigan, Malemta
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i1.2977

Abstract

Polyvinyl alcohol (PVA) has good compatibility when added as filler in the form of nanocarbon so that it can produce environmentally friendly nanocomposite products. Thus, the addition of nanocomposites to PVA-based films is expected to increase and improve the mechanical properties of the resulting PVA films. This study aims to utilize palm fruit shells as raw materials for nanocarbons and as fillers for nanocomposites, as well as to determine the mechanical properties and thermal strength of nanocarbon nanofibers in the PVA matrix. Composite films were made using the solution mixing method. The research was conducted by mixing PVA solution (3.5 g) with various concentrations of nanocarbon from palm fruit shells (NCCS) and 2 ml of glycerol and 1 g of PEG 400. Film characterization includes tensile test, scanning differential calorimetry (DSC), and conductivity test. Tensile test of PVA/NCCS nanocomposite resulted in tensile strength of 0.314 MPa and an elongation of 4.21925 %. The thermal test of PVA/NCCS nanocomposite with DSC yielded a melting point of around 146.06oC. Electrical conductivity of PVA/NCCS 107.1 (1.07 x 10-3) s/cm. PVA/NCCS nanocomposite based on conductivity scale including a semiconductor material.
MECHANICAL PROPERTIES OF CELLULOSE-BASED EXTRACTED FROM NATA DE COCO Pertiwi, Sherlyna; Tarigan, Malemta; Harahap, Mahyuni; Adiansyah
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 7 No. 1 (2023): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v7i1.3884

Abstract

Paper production is currently important for various community needs due to the use in daily life. The aim of this study is to produce paper cellulose-based extracted from Nata de Coco with the addition of polyvinyl alcohol (PVA) as an adhesive. The paper was produced by using pulp method followed by ultrasonication with variation of ultrasonication from 10 min, 20 min, to 30 min. The sample was characterized in terms of functional groups and mechanical properties. The results showed that the longer the ultrasonication time, the lower the mechanical value. The highest tensile test was obtained at 10 min of ultrasonication with the value of 5.036 MPa.
PROCESSING OF SAWDOW WASTE OF MAHONI AND JATI WOOD AS A MATERIAL GYPSUM CEILING FILLERS WITH POLIVINYL ADHESIVE ALCOHOL Zai, Liver; Halawa, Estetika Niat Iman; Tarigan, Malemta; Gultom, Erdiana; Purwandari, Vivi; Jiamin, Ong Amanda
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 7 No. 1 (2023): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v7i1.3986

Abstract

Along with the increase in population, the need for building materials, namely wood, will increase, thus triggering rampant illegal logging, which will cause floods, landslides, and global warming. One of the efforts made to reduce the use of wood is to make gypsum composite boards. This study aims to utilize mahogany wood waste and jati wood powder as gypsum board fillers. Research has been carried out on processing waste sawdust from mahogany and jati wood as a filling material for making gypsum ceilings with polyvinyl alcohol adhesive by mixing and compacting using a hot compressor at 70o C. Good quality with a density value of 0.82 g /cm3 and absorption capacity of 38.4% complied with SNI 03-2105-2006. Mechanical properties with variations in impact strength (95:5:10) of 19.014 J/m2, flexural strength of variation (95:5) of 395, 446 N/m2, and fracture strength of variation (95:5:5) of 1.7758 N/m2. A Gypsum board was obtained, which did not meet SNI 03-6384-2000 on the gypsum board specification for the results of testing for flexural strength and fracture strength.
PENGARUH KONSENTRASI PEREKAT AMILUM TERHADAP KARAKTERISTIK BRIKET BIOARANG BERASAL DARI HASIL PIROLISIS LIMBAH PADAT INDUSTRI KELAPA Lase, Winta; Purwandari, Vivi; Adiansyah; Tarigan, Malemta; Yiming, Zou
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 7 No. 1 (2023): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v7i1.4448

Abstract

This research is the manufacture of bio-charcoal briquettes derived from the results of pyrolysis of coconut industrial solid waste as well as an analysis of the effect of adhesive concentration on the research results of bio-charcoal briquettes. The purpose of this study was to determine the process of making bio-charcoal briquettes, the quality of the bio-charcoal briquettes and to determine the effect of the adhesive concentration used on the bio-charcoal briquettes as a result of the research. Research has been carried out on processing coconut shell and coconut coir waste with starch adhesive materials using the mixing and printing method with PVC pipes and drying in an oven with a temperature of 90–100 ºC ± 3 hours. Furthermore, the bio-charcoal briquettes were characterized based on the provisions of SNI No.01/6235/2000 which included moisture content, ash content, volatile matter content, bound carbon content, density, specific gravity, burning rate, compressive strength, calorific value with optimum values respectively 11 .46%, 3.81%, 17.60%, 77.26%, 1.2 gr/cm 3 , 1.2× 10 -6 Kg/m 2 .s 2 , 0.108 g/min, 80.680 % , 6,200 cal/g. Bio-charcoal briquettes were also tested for DTA and TGA for bio-charcoal briquettes using adhesive and without adhesive with successive values of -223.20 cal/g, -22.615%, -206.20 cal/g and -29.075%. The best quality bio-charcoal briquettes are found in briquettes with a mixture of 90% charcoal and 10% starch adhesive.
Co-Authors Adiansyah Dyna Grace Romatua Aruan Gultom, Erdiana Halawa, Estetika Niat Iman Harahap*, Mahyuni Harahap, Mahyuni Jiamin, Ong Amanda Lase, Winta Pertiwi, Sherlyna Purwandari, Vivi Siahaan, Maniur Arianto Sinaga, Lia Rosa Veronika Yiming, Zou Yosy Cinthya Eriwaty Silalahi Zai, Liver