Article Per Year (5 Year)
p-Index From 2021 - 2026
1.048
P-Index
This Author published in this journals
All Journal Jurnal Teknologi Pertanian REACTOR : Journal of Research On Chemistry And Engineering Journal of Industrial Community Empowerment SAINTI: Majalah Ilmiah Teknologi Industri
Melysa Putri
Politeknik ATI Padang
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering

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

Found 7 Documents
Search

 1 
Perbandingan Kandungan Selulosa dan Lignin dari Kayu Acacia crassicarpa dan Acacia mangium Melysa Putri; Shalsyabila Poeni
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.v1i1.3

Abstract

The development of the pulp & paper industries in Indonesia increase every year. To support the development of industries in Indonesia in order to be able to compete with similar industries from abroad, it is very important to pay attention to the quality of the paper produced. One way to determine the quality of the pulp & paper is by knowing the chemical composition and area where the wood grows. Important chemical compositions that can support the strength of wood and paper quality include cellulose and lignin. Therefore, this study was conducted to compare the levels of cellulose and lignin contained in Acacia crassicarpa wood from wetlands and Acacia mangium from dry land which is processed into pulp & paper with good quality. Determination of cellulose and lignin content in wood was carried out using the gravimetric method. Test results on Acacia crassicarpa wood species from wetlands obtained cellulose content of 55.48% and lignin 24.13%, while in Acacia mangium wood from dry land obtained cellulose content of 51.46% and lignin 27.66%. According to company standards that levels of cellulose and lignin in two different fields are obtained according to the standards set by the company. So for the results of testing Acacia crassicarpa wood from wetlands have the highest levels of cellulose with low levels of lignin
Pengaruh Penambahan Gliserin dan Polivinil Alkohol Terhadap Karakteristik Biofoam dari Kulit Singkong dan Daun Angsana Melysa Putri; Dwi Kemala Putri; Alvernia Putri
REACTOR: Journal of Research on Chemistry and Engineering Vol 2, No 1 (2021): Published in June 2021
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v2i1.19

Abstract

Styrofoam is a petroleum-based and synthetic polymer that is only used once. To reduce waste and environmental damage as well as health problems, this study aims to make biofoam from cassava peel and angsana leaves using a combination of extrusion and baking methods. In this study, glycerin and polyvinyl alcohol were also added with volume variations, 10: 30 (sample 1), 20 : 20 (sample 2), and 30: 10 (sample 3) mL to improve the physical properties of biofoam. The physical characteristics observed were color, water content using the gravimetric method, and water absorption capacity of ABNT NBR NM ISO 535. Sample 1 and sample 2 were lighter in color than sample 3. The lowest water content value was found in sample 2, while sample 2 was has the ability to absorb less water is sample 3.
Efek Variasi Penambahan Carbomer Terhadap Nilai pH, Viskositas dan Aktivitas Mikroba pada Sediaan Hand Sanitizer Melysa Putri; Hafnimardiyanti Hafnimardiyanti; Dian Savitri
REACTOR: Journal of Research on Chemistry and Engineering Vol 2, No 2 (2021): Published in December 2021
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v2i2.36

Abstract

Hand sanitizer is an antiseptic in gel form. The gel texture in hand sanitizers is caused by the carbomer which acts as a gelling agent. Therefore, this research was done to observe the effect of carbomer on the value of pH, viscosity, and microbial activity in hand sanitizers. As for testing pH using pH meters, testing viscosity was carried out using the viscometer method, while microbial activity was carried out using the Total Plate Number, Yeast Mold Number and microbial pathogen tests. Based on the data obtained, the carbomer greatly influences the increase in the viscosity of the hand sanitizer gel, the pH value was obtained at 6.0 - 7.06, while in the microbial activity test none of the microbes grew in each medium. Therefore, it can be concluded that the hand sanitizer with code P3 is the best sample
PEMBUATAN ALAT PENJERNIHAN MINYAK JELANTAH DENGAN OTOMASI LAJU ALIR Melysa Putri; Roswita; Faldi Lulrahman; Fardian
JURNAL TEKNOLOGI PERTANIAN Vol. 11 No. 1 (2022)
Publisher : Prodi Teknologi Pangan Fakultas Pertanian Universitas Islam Indragiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/jtp.v11i1.1949

Abstract

Used cooking oil is oil obtained from repeated frying, so it is not healthy for consumption. In addition, used cooking oil can also cause environmental pollution if discharged directly into the environment. To overcome this problem, a used cooking oil purification device with flow rate automation was made. This study aims to make the used cooking oil purification process more effective. This used cooking oil processing equipment consists of a holding tank, a flow rate control device, a flow rate reader, an adsorption column containing cotton, activated charcoal, and zeolite. Then, the performance of the tool was tested. Based on the research that has been done, used cooking oil which was initially reddish brown and smelled rancid after being processed, the color changed to brownish yellow and the smell was slightly rancid. Therefore, it can be concluded that the used cooking oil purification equipment with flow rate automation is effective for purifying used cooking oil.
Teknologi Tepat Guna Produksi Sabun Batang Dari Minyak Jelantah di Padang Pariaman Pevi Riani; Melysa Putri; Renny Futeri; M. Ikhlas Armin; Selfa Dewati Samah; Syafrinal Syafrinal; Hafnimardiyanti Hafnimardiyanti
Journal of Industrial Community Empowerment Vol 1, No 2 (2022): Published in October 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (539.507 KB)

Abstract

Ramuak cracker is one of the main product of Toboh Mandailing, Balai Baru, VII Koto Sungai Sariak, Padang Pariaman, West Sumatera. One of the obstacles faced by the cracker industry players is the amount of used cooking oil produced. Used cooking oil is leftover frying oil that has been repeatedly used. If it continues to be consumed, it will be harmful to health. If discharged into the environment, it will cause environmental pollution. Therefore, the Community Partnership Program Team of the Politeknik ATI Padang provided counseling about the dangers of used cooking oil and efforts to process used cooking oil into something useful, namely producing bar soap with used cooking oil as its raw material. The step of making bar soap from used cooking oil is to slowly dissolve the NaOH solution into 500 grams of used cooking oil, then stir using a stainless steel stirrer until evenly distributed and there are no more lumps. The next step is to add dyes and fragrances and stir again to form a soap mixture. Do the printing of the soap dough in the mold by coating it with parchment paper. Let stand for 24-48 hours until the saponification process is complete. PKM activities carried out well and smoothly and in accordance with the expected results. Each participant was able to make bar soap from used cooking oil very well. This activity is expected to provide insight, knowledge and input to partners regarding the process of making bar soap from used cooking oil so that it can be used for daily needs and can even be sold as an additional source of income for the community.
PENGARUH PH TERHADAP NILAI VOLATILE FATTY ACID (VFA) LATEKS PEKAT Syafrinal Syafrinal; Melysa Putri; Yosi Amelia Putri
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 (198.741 KB)

Abstract

One of the factors that affect the quality of concentrated latex is pH. The purpose of this study was to determine the effect of pH on the value of Volatile Fatty Acid (VFA) of concentrated latex. The method used is titration using Ba(OH)2 as the titrant and BTB as an indicator. The results showed that the pH of the initial concentrated latex pH 10 the VFA value was 0.0158%. Then on decreasing the pH at pH 9.50 the VFA value was 0.0219%, at pH 9 the VFA value was 0.0328% and at pH 8.5 the VFA value was 0.0522%. However, at pH 10.5 which the pH was increased from the initial conditions, the VFA value was 0.0129%. This shows that the lower the pH, the value of the Volatile Fatty Acid of concentrated latex increases, while if the pH is increased, the value of the Volatile Fatty Acid of concentrated latex decreases. A good pH condition for concentrated latex according to the American Society for Testing and Materials Standard (ASTM D.1076. Y80) with a maximum standard of 0.030% is at pH 9.5 - 10.5.
Density Effect of Calcium Carbonate Solution on Kernel Losses in Clay Bath Unit at PT Bina Pratama Sakato Jaya Addin Akbar; Khairul Akli; Dwi Kemala Putri; Melysa Putri; Syarie Hidayah
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 (86.422 KB)

Abstract

Clay Bath is a tool to separate palm shells from Kernels using a calcium carbonate solution. Kernel Losses in the Clay Bath unit are a problem that can be detrimental to CPO Processing Industry. The effect of the density of the calcium carbonate solution can reduce the Kernel Losses. In this study, variations in the density of calcium carbonate solution were made starting from 1.092; 1,112 ; 1.136 ; 1.142 ; 1.150 g/mL. Based on the results of the study, the lowest Kernel Losses were found at a density of 1.150 g/mL with 2.57%.
Co-Authors Addin Akbar Alvernia Putri Dian Savitri Dwi Kemala Putri Faldi Lulrahman Fardian Hafnimardiyanti Hafnimardiyanti Khairul Akli M. Ikhlas Armin Pevi Riani Renny Futeri Roswita Selfa Dewati Samah Shalsyabila Poeni Syafrinal Syarie Hidayah Yosi Amelia Putri