Article Per Year (5 Year)
p-Index From 2019 - 2024
1.452
P-Index
This Author published in this journals
All Journal Agroteknika REACTOR : Journal of Research On Chemistry And Engineering Journal of Industrial Community Empowerment SAINTI: Majalah Ilmiah Teknologi Industri
Sri Elfina
Politeknik ATI Padang
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search

 1 
Sintesis Precipitate Calsium Carbonat Sebagai Filler Pada Plastik Ramah Lingkungan Sri Elfina; Novesar Jamarun; Syukri Arief; Akmal Djamaan
REACTOR: Journal of Research on Chemistry and Engineering Vol 1, No 1 (2020): Published in June 2020
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v1i1.4

Abstract

Batu kapur merupakan bahan tambang yang ketersediaannya sangat melimpah di Indonesia terutama daerah Sumatera Barat. Batu kapur disintesis untuk pembuatan filler Precipitate Calcium Carbonat. Hasil penelitian yang telah dilakukan terhadap filler Precipitate Calcium Carbonat dari batu kapur berdasarkan hasil analisis X-RD, FTIR dan SEM-EDX, dapat disimpulkan bahwa senyawa hasil sintesis dari CaO batu kapur adalah Precipitate Calcium Carbonat dengan jenis kristal aragonit dan kalsit. Sementara uji BET menunjukan luas permukaan spesifik filler Precipitate Calcium Carbonat dengan nilai 7,315 m2/g. Permukaan Plastik ramah lingkungan dengan penambahan filler Precipitate Calcium Carbonat dikarakterisasi menggunakan AFM didapatkan nilai Rq 0,43 µm.
Pelatihan Pembuatan Detergen Cair, Pelembut dan Pewangi Pakaian Serta Pemasarannya di Nagari Talang Dwimaryam Suciati; Elda Pelita; Sri Elfina; Fejri Subriadi; Hafnimardiyanti Hafnimardiyanti
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 (564.83 KB)

Abstract

Talang is a village in Gunung Talang District, Solok Regency, West Sumatera. Nagari Talang, which is located ± 15 km from the city of Solok and ± 50 km from the city of Padang, is the administrative center of Gunung Talang District. The livelihood of the population, in general, is farming, and a small part as traders (entrepreneurs) and government employees. With limited employment opportunities, it is very necessary to provide counseling and training to create jobs and advance industry in the trade sector in the Talang area by utilizing housewives to be able to have their income by producing superior products, namely liquid detergent, fabric softener, and deodorizer. These three products are the main products used in washing and ironing clothes. It is hoped that by producing these products, the community can be helped in terms of the economy, and in particular it can be used as a source of income for housewive organizations in opening laundry. In addition to making these products, the community service team also provides ideas and product marketing systems that can be developed in the Talang community.
PEMANFAATAN LIMBAH ORGANIK PASAR SEBAGAI BAHAN BAKU PELET DENGAN PRETREATMENT SECARA FERMENTASI ANAEROB Armen Armen; Sri Elfina; Haswan Haswan
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 19, No 2 (2022): VOL 19 NO 2 DESEMBER 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (151.762 KB)

Abstract

Processing market waste into feed can increase the added value of waste. Market waste consisting of vegetables and animals still contains nutrients that are beneficial for livestock and fish as an alternative or main feed. Utilization of market waste into fish pellets needs to be studied with a fermentation process with variations in fermentation time of 2-6 days, molasses content (5%, 10% and 15%) and animal and vegetable composition (1:1, 2:3 and 3:1) on crude protein and feed quality. The process of making feed by mixing market waste materials and a fermentation and flouring process will be carried out to obtain uniform pellets in printing. Protein test will be carried out using the Kjedhal method as crude protein content. Based on the results of buoyancy for more than 6 minutes, pellets with a composition of 50% fish offal had the best quality compared to other variations with a protein content of 32.48%.
PEMBUATAN DAN ANALISIS PRECIPITATE CALCIUM CARBONATE DARI BATU KAPUR DENGAN METODE KARBONASI Sri Elfina; Wiki Renedi
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 16, No 1 (2019): VOL 16 NO 1 JUNI 2019
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.118 KB)

Abstract

A lot of limestone encountered in Indonesia. Most of the limestone reserves in Indonesia are in West Sumatra. Limestone utilization in West Sumatra is currently only limited as the adhesive mortar or bleach on the walls, so that the low economic value. Therefore, the need for efforts to increase the value added products of limestone, which is to process it into products that are more efficient in the industry such as precipitate calcium carbonate (PCC) which has a high economic value. PCC is a limestone that has been processed in such a way so as to form small particles that homogeny and it’s easy to set up. Currently PCC can be synthesized via three methods, namely the method of Solvay, caustic soda, and carbonation. In this study, the method used is the manufacture of PCC carbonation method, i.e. by passing carbon dioxide gas into a suspension. PCC quality tested by several parameters, purity of CaO 37.75 %, Fe3 + impurity levels of 6.72 ppm and a water content of 2.29 %.
PENENTUAN KADAR BESI DAN SENG DENGAN MENGGUNAKAN METODA INDUCTIVELY COUPLED PLASMA- ATOMIC EMISSION SPECTROCOPY PADA AIR BAKU DI KOTA BATAM Dartini Dartini; Sri Elfina
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 16, No 1 (2019): VOL 16 NO 1 JUNI 2019
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (203.47 KB)

Abstract

Water is a natural resource needed to fulfill the livelihood of many people, so it needs to be protected so that it can be beneficial to the lives and lives of humans and other living things. Batam City is one of the cities in Riau Islands Province which has a type of soil that cannot store water properly so that it uses an artificial reservoir as a reservoir of rainwater. Due to waste from industrial, domestic and other activities that have a negative impact on water resources. Then testing the iron and zinc content of the reservoir water in the city of Batam was carried out. Metal Iron and Zinc are metals that are needed by organisms in relatively small amounts. Based on Government Regulation No. 82 of 2001 class 1, allowed Iron and Zinc levels of 0.3 mg/L and 0.05 mg/L. The method used in this test is Inductively Coupled Plasma - Atomic Emission Spectrocopy (ICP - AES), with the principle based on atomizing elements so that they emit light at certain wavelengths which can then be measured. From the test, it was found that the iron content in Duriangkang reservoir 0.2339 ppm, Sei Harapan reservoir 0.0299 ppm, Mukakuning reservoir 0.0292 ppm, Sei Nongsa reservoir 0.4168 ppm, Rempang reservoir 0.0001 ppm, Tembesi reservoir 0.0420 ppm, Sei Ladi reservoir 0.0588 ppm. Zinc content in Duriangkang reservoir is 0.0083 ppm, Sei Harapan reservoir is 0.0554 ppm, Mukakuning reservoir is 0.0083 ppm, Sei Nongsa reservoir is 0.0004 ppm, Rempang reservoir is 0.0083 ppm, Tembesi reservoir is 0.0083 ppm, Sei Ladi reservoir is 0.0211 ppm. This shows that the reservoir water has fulfilled the class 1 water quality requirements stipulated by Government Regulation No. 82 of 2001 except Sei Nongsa reservoir for the parameters of Iron (Fe) and Sei Harapan reservoir for Zinc (Zn) parameters.
Pemanfaatan Peluang Pasar Produk Lokal Dalam Rangka Meningkatkan Ekonomi Masyarakat di Kabupaten Agam Sumatera Barat Rita Youfa; Desniorita Desniorita; Radna Ningsih; Sri Elfina; Adlina Safitri Helmi; Oktrison Oktrison; Jerry Jerry
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.v2i1.192

Abstract

The partners involved in this PKM activity are farming communities in Nagari Matur Mudik, Nagari Lawang and Nagari Tigo Balai Kec. Thanks, Kab. Agam is located to the north of Padang City, West Sumatra Province, which is ± 94 km from the Padang ATI Polytechnic Campus. Most of the people of Nagari Matur Mudik, Kec. Thanks, Kab. Agam has a livelihood as a farmer. The Community Partnership Program aims to increase the economic value of agricultural commodities in Nagari Matur Mudik, Nagari Lawang and Nagari Tigo Balai, Matur District, Agam Regency. Sales of agricultural raw materials are considered to be still constrained in the distribution/sales process which is only limited to traditional markets. Efforts are being made through the processing of agricultural raw materials into delicious and nutritious products, as well as having competent selling points in the market. The methods used in this program are counseling and training methods. This program works with the PKK team and the farming community as partners in the center for processing agricultural products into food products for the trading community. The flow of activities includes the preparatory stage in the form of observations to related offices/agencies. Then the implementation stage, namely counseling and training for the community in Matur District, which is centered at the Nagari Matur Mudik Village office, Nagari Lawang and Nagari Tigo Balai. With direct participation by the community, it is hoped that new and creative ideas will emerge by the community in processing agricultural products so that this program can be sustainable as a concrete effort to continue to improve the economy of the local community.
Rancang Bangun dan Uji Kinerja Prototipe Mesin Pengolahan Saus Tomat dengan Penambahan Tepung Labu sebagai Pengental Saus Fatmir Edwar; Raimon Raimon; Effendi Effendi; Edi Syafri; Sri Elfina; Zefri Azharman
Agroteknika Vol 7 No 2 (2024): Juni 2024
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v7i2.248

Abstract

Tomat (Solanum lycopersicum L.), sebagai komoditas hortikultura, memiliki nilai gizi yang tinggi dan berbagai manfaat kesehatan. Namun, tomat rentan terhadap kerusakan dan fluktuasi harga. Salah satu alternatif yang dapat diambil adalah mengolah tomat menjadi saus. Dalam rangka meningkatkan produksi pengolahan saus tomat, diperlukan mesin pengolah tomat yang efisien. Penelitian ini bertujuan untuk merancang dan menguji kinerja prototipe mesin pengolah tomat menjadi saus tomat, serta menganalisis tekno ekonomi dari produksi saus yang dihasilkan. Prototipe mesin yang dibuat memiliki dimensi 50 x 40 x 120 cm dan dapat mengolah 5 kg tomat setiap prosesnya. Waktu optimal yang dihasilkan adalah 5 menit untuk setiap 5 kg produksi. Hasil uji kadar logam menunjukkan bahwa saus tomat yang dihasilkan memenuhi standar SNI 01-2896-1998. Dari analisis tekno ekonomi, Break Even Point (BEP) terletak pada tingkat produksi 17 kg saus tomat. Penelitian ini diharapkan dapat memberikan kontribusi positif dalam pengembangan agribisnis tomat dan industri pengolahan produk turunannya.
Co-Authors Adlina Safitri Helmi Akmal Djamaan Armen Armen Dartini Dartini Desniorita Desniorita Dwimaryam Suciati Edi Syafri Effendi Effendi Elda Pelita Fatmir Edwar Fejri Subriadi Hafnimardiyanti Hafnimardiyanti Haswan Haswan Jerry Jerry Novesar Jamarun Oktrison Oktrison Radna Ningsih Raimon Raimon Rita Youfa Wiki Renedi Yofita Sandra, S.Pd., M.Pd., Zico Farlin, Dr. Budiwirman, M.Pd., Zefri Azharman