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All Journal CHEMPUBLISH JOURNAL AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian REACTOR : Journal of Research On Chemistry And Engineering JURNAL KIMIA SAINTEK DAN PENDIDIKAN Journal of Industrial Community Empowerment SAINTI: Majalah Ilmiah Teknologi Industri Jurnal Pengabdian Cendikia Nusantara
Riani, Pevi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology

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Penentuan Kadar Kalium Sorbat dan Persen Recovery pada Selai dengan Metoda High Performance Liquid Chromatography Riani, Pevi; Fannin, Ulvie Ameinda
REACTOR: Journal of Research on Chemistry and Engineering Vol. 1 No. 2 (2020)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v1i2.7

Abstract

Fruit jam is one of the preserved products that have a soft texture that contains crushed fruit and is mixed with sugar with the addition or without the addition of water. Preservatives are added to prevent damage to jams. A preservative that is usually added to jam is potassium sorbate. Potassium sorbate is commonly used as a preservative because it dissolves more easily when added to food. This study aims to determine the levels of potassium sorbate in jam samples. Potassium sorbate was determined using High Performance Liquid Chromatography (HPLC). From the test results, it was found that potassium sorbate levels ranged from719, 65 mg/kg to 757,24 mg/kg. The results of this test will be compared with the standards set by the Food and Drug Supervisory Agency (BPOM) No. 36 of 2013 concerning the maximum limit for the use of preservative food additives, namely 500 mg/kg. From the test results, it can be seen that the potassium sorbate in all samples exceeds the quality standard set by the BPOM. Therefore, people must be more careful in choosing jam to consume daily. The test results have used the right method, namely by adjusting the stationary phase, mobile phase and the right wavelength so that the% recovery results are 103%.
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 Armin, M. Ikhlas Armin, Muhammad Ikhlas Dewati Samah, Selfa Fannin, Ulvie Ameinda Gusfiyesi Hafnimardiyanti Hafnimardiyanti Hafnimardiyanti Hazil Anwar, Hazil Hidayana, Hijratul Ikhlas Armin, Muhammad Nurmaliza Putri , Melysa Putri, Melysa Renny Futeri Selfa Dewati Samah Susanti, Arisa Syafrinal Syafrinal, Syafrinal