Article Per Year (5 Year)
p-Index From 2021 - 2026
1.756
P-Index
This Author published in this journals
All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Riset Kimia CHEMPUBLISH JOURNAL REACTOR : Journal of Research On Chemistry And Engineering Journal of Industrial Community Empowerment SAINTI: Majalah Ilmiah Teknologi Industri Jurnal Pengabdian Cendikia Nusantara
Selfa Dewati Samah
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Medicine & Pharmacology

Published : 12 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 12 Documents
Search

 1   2 
Karakterisasi Kimia CMC (Carboxymethyl Cellulose) Umbi Ganyong Samah, Selfa Dewati; Futeri, Renny; Putri, Gustiarini Rika; Armin, M. Ikhlas
REACTOR: Journal of Research on Chemistry and Engineering Vol. 3 No. 2 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v3i2.61

Abstract

Carboxymethyl Cellulose (CMC) a compound made from starch of tubers ganyong flour with added methanol, propanol and water. Four process involving alkalization process, karboksimetilasi, neutralization in the process of making the CMC. Carboxymethylization process involving alkazation process neutralization in the proess of making the CMC. Alkazation is reaction between cellulose and soda solution (alkaline) to become alkaline cellulose (cellulose is soluble in soda solution). Carboxymethylization is rection between alkaline cellulose and sodium chloro acetate compound to form sodium Carboxymethyl Cellulose (Na.CMC) which froms a viscous solution. Neutralization is solution neutralization process and the last prcess is the manufacture of CMC. Two processes were first made is Alkazation and Carboxymethylization by reacting 22 g NaOH and 20 g ClCH2COONa respectively. Acetic acid is added is used in the neutralization process, during the heating process in the oven. The overall results for each degree of substitution; pH; viscosity; water content; NaCl concentration; purity; Redemen of cellulose: Rendemen of CMC ganyong; 0.81; 8; 7 cP; 5% 2.01%; 97.99%; 2%; 98.5% respectively. CMC ganyong from the research that has been tested by FTIR spectra test results CMC ganyong can be seen in the picture there are similarities peaks that appears indicating CMC canna generated in this study have the same chemical molecules CMC commercially for food chemical codex is at 732 cm-1 while the peak of commercial CMC 725 cm-1 is carboxyl group and -CH. Based on the research results obtained, it can be concluded that the CMC is of good quality as a filler to make chemical bond stronger.
Verification of The Method for Determining Calcium Content in Animal Feed Syafrinal, Syafrinal; Hafnimardiyanti; Samah, Selfa Dewati; Riani, Pevi; Futeri, Renny; Nurmaliza
Chempublish Journal Vol. 9 No. 2 (2025): Chempublish Journal (July - December)
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v9i2.48076

Abstract

Calcium is one of the essential macromineral elements in animal feed. To ensure that animal feed meets nutritional and safety standards, accurate and validated analytical methods are needed to determine calcium levels, specifically using the ICP-OES (Inductively Coupled Plasma Optical Emission Spectroscopy) technique, which is known for its high sensitivity, enabling the rapid and precise detection of calcium elements at low concentrations. This study aims to verify the method for analyzing calcium content in animal feed, referring to method verification parameters, including linearity, accuracy, precision (repeatability test), limit of detection (LoD), method detection limit (MDL), and limit of Quantitation (LOQ). The verification process was conducted using calcium standard solutions at various concentrations and analysis of animal feed samples according to SNI 3148.2:2009 using Inductively Coupled Plasma (ICP-OES) with a linearity test parameter coefficient of correlation (r) value of 0.9991, precision with a % RSD value of 2.18%, accuracy (recovery) reaches 90-99%, with a detection limit (LoD) of 0.0745 mg/L and a Limit of Quantitation (LoQ) of 0.9060 mg/L, all of which meet the acceptance criteria set by AOAC. These results prove that the ICP-OES technique is suitable for use as a test method for determining the calcium content in animal feed, can be adopted as a standardized routine procedure.
Co-Authors Akli, Khairul Armin, M. Ikhlas Elisma, Netri Enny Nurmalasari Fatmawati, Fatmawati Febrian, Aby Gustiarini Rika Putri Hafnimardiyanti Hafnimardiyanti Hafnimardiyanti Hazil Anwar, Hazil Januarti, Ria Maryam Maryam Novesar Jamarun Nurmaliza Putri , Melysa Putri, Melysa Renny Futeri Riani, Pevi Santia, Anisa Dwi Syafrinal Syafrinal, Syafrinal Syukri Arief Ulia, Hasnah