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Nurmala Sari
Universitas Tjut Nyak Dhien, Medan, Sumatera Utara, Indonesia.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health

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Analisis Kadar Kafein Biji Kopi Arabika Dengan Variasi Temperatur Sangrai Yang Tumbuh Di Aek Sabaon Tapanuli Selatan Mey Linda Hasibuan; Sumardi Sumardi; Nilsya Febrika Zebua; Nurmala Sari
Journal of Pharmaceutical and Sciences JPS Volume 6 Nomor 2 (2023)
Publisher : Fakultas Farmasi Universitas Tjut Nyak Dhien

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.135 KB) | DOI: 10.36490/journal-jps.com.v6i2.116

Abstract

Roasting can change the physical properties and chemical properties of coffee beans such as the composition of the chemical compounds contained in them, namely caffeine compounds. Caffeine is one of the compounds contained in coffee beans. It is necessary to analyze the differences in the roasting profile in the roasting process of coffee beans to find out if there is a difference in caffeine levels in coffee based on variations in roasting temperature. This study was conducted to determine the caffeine content in arabica coffee grown in Aek Sabaon Village, Marancar District, South Tapanuli Regency with variations in roasting temperatures. The roasting method is carried out in a modern way using a coffee roasting device equipped with a thermometer. The extraction method used is liquid-liquid extraction using chloroform as the solvent. The determination of arabica coffee caffeine levels with variations in roasting temperatures was carried out using the UV-vis spectrophotometry method using HCl 0.1 N as solvent. The results showed caffeine content in arabica coffee samples with variations in roasting temperatures with temperatures of 180°C, 200°C and 210°C respectively; 11.23%, 11.30% and 13.92%. Statistically, the test using ANOVA showed a difference in caffeine levels in the variation in roasting temperature which was not very significant because the significance of p > 0.05 and in the t Test it met the requirements of the significance value p < 0.05 so that it showed a free variable positive and significant effect on the bound variable.
Formulasi sabun mandi esensial minyak nilam dengan pewarna kopigmentasi biji kesumba keling (Bixa orellana L.) dengan angkak merah Meutia Indriana; Nurmala Sari; Siti Muliani Julianty; Muzakkir Muzakkir; Yessi Febriani; Taufik Nurrahman; Salman Salman
Journal of Pharmaceutical and Sciences JPS Volume 7 Nomor 2 (2024)
Publisher : Fakultas Farmasi Universitas Tjut Nyak Dhien

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36490/journal-jps.com.v7i2.342

Abstract

Background; The skin is the outermost layer of the body that serves as a protective barrier against exposure to sunlight and is also where sweat is produced. Sweat can make the skin appear dull and sticky. Soap is a cosmetic product that is used for body cleansing. Annatto and red mold rice are used as natural colorants formulated in soap preparations, where the color produced by annatto and red mold rice is not stable. Therefore, a copigmentation method is needed to stabilize the colorant annatto with red mold rice. Method; This research use an experimental approach that initially involves the extraction of annatto seeds and red mold rice using 96% ethanol. Subsequently, the extracted compounds are formulated into soap preparations with variations in ratios of 1:1, 1:2, 2:1, and 2:2. To evaluate the quality of the soap preparations, various tests have been conducted, including homogeneity testing, pH testing, foam height testing, water content testing, and irritation testing. Result; The results showed that the copigmentation of annatto seeds with red mold rice in the form of ethanol extract could be formulated into a soap dosage form at a ratio of 2:1 (F4) is the best preparation, is a homogeneous preparation, has a pH of 9.4 , has a foam height of 8.3 cm, has a water content of 6.25%. All copigmented soap with ethanol extract of annatto seeds with red mold rice does not irritate the skin of the hands.
Co-Authors Meutia Indriana Mey Linda Hasibuan Muzakkir Muzakkir Nilsya Febrika Zebua, Nilsya Febrika Salman Salman Siti Muliani Julianty Sumardi Sumardi Taufik Nurrahman Yessi Febriani