Anny Sartika Daulay
Department of Pharmacy, Faculty of Pharmacy, Universitas Muslim Nusantara Al-Washliyah

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Journal : Indonesian Journal of Science and Pharmacy

Simultaneous Solubility Analysis of Paracetamol, Propyphenazone, and Caffeine Using Principal Component and Absorbance Ratio Regression Methods Hikmah Rosaldi; Ainil Fithri Pulungan; Ridwanto Ridwanto; Anny Sartika Daulay
Indonesian Journal of Science and Pharmacy Vol. 1 No. 2 (2023): Indonesian Journal of Science and Pharmacy
Publisher : Pustaka Media Publishing

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Abstract

Medicines can cause changes in the physiology or psychology of an organism when consumed. In general, medicines consist of several mixtures of active ingredients such as paracetamol (PCT), propifenazone (PRO), and caffeine (KAF), which are often found in several types of branded medicines that are claimed to be able to cure or treat. This research aims to obtain a type of solvent that has the smallest photometric error value and can completely dissolve the active ingredient mixture of PCT, PRO, and KAF. In general, organic solvents such as ethanol and methanol are very often used to dissolve compounds that mix with each other, but these solvents cannot always dissolve other active substances. Therefore, researchers carried out an analysis of several types of solvents that could dissolve the three active ingredients. Solvents that can dissolve perfectly without any specification stage must go through a solvent optimization process. The types of solvents that will be tested are methanol, HCl 0.1N, phosphate buffer pH 7.2, and the ratio of phosphate buffer: methanol (DM) (DM 9:1 pH 7.4), (DM 7:3 pH 7.8), (DM 5:5 pH 8.3), (DM 3:7 pH 8.9), and (DM 1:9 pH 9.6). The results of this research show that the solvent that has the smallest photometric error value and can completely dissolve the three active substances is the DM 7:3 pH 7.8 solvent with a total percentage of 0.0846%, which is the smallest value compared to other solvents that have been optimized.
Characterization and Phytochemical Screening Of Tampala Bajakah Wood (Spatholobus littoralis Hassk) Extract With Methanol and Ethyl Acetate Solvents Liya Alviana; Ridwanto Ridwanto; Anny Sartika Daulay; Zulmai Rani
Indonesian Journal of Science and Pharmacy Vol. 1 No. 3 (2024): Indonesian Journal of Science and Pharmacy
Publisher : Pustaka Media Publishing

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Abstract

One of the plants that contains secondary metabolite compounds is Bajakah Tampala wood (Spatholobus littoralis Hassk). The aim of this research is to determine the chemical compounds contained in methanol and ethyl acetate extracts. The stages of this research include processing plant materials, making methanol and ethyl acetate extracts, characterization examinations, and phytochemical screening. Bajakah Tampala wood extract was made using the maceration method using methanol and ethyl acetate. The extract obtained was concentrated using a rotary evaporator. The characterization of Bajakah Tampala sawdust showed that the water content test was 2%, the water soluble juice content test was 7.1%, the ethanol soluble juice content test was 12.05%, the total ash content test was 3.65%. , and testing the ash content that is insoluble in acid was 0.1%. Meanwhile, the results of the phytochemical screening of Bajakah Tampala wood showed that it contained chemical compounds such as alkaloids, flavonoids, saponins, tannins, and steroids and triterpenoids.
Isolation of Chitosan from Lake Toba Freshwater Lobster Shells (Cherax quadricarinatus) Novita Yulianti Sinaga; Ridwanto Ridwanto; Anny Sartika Daulay; Haris Munandar Nasution
Indonesian Journal of Science and Pharmacy Vol. 1 No. 3 (2024): Indonesian Journal of Science and Pharmacy
Publisher : Pustaka Media Publishing

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Abstract

Chitosan is an amine polysaccharide that is formed after chitin undergoes a deacetylation process. This compound has a significant role as a natural biopolymer which is polycationic. This research aims to make chitosan from freshwater lobster shells obtained from Lake Toba. The research method is experimental. Includes making chitosan from freshwater lobster shells. The process of making chitosan includes demineralization, deproteination and deacetylation stages. Chitosan was characterized by measuring water content, ash content, yield, solubility, and analysis using an FTIR spectrophotometer. Based on the results of research that has been carried out, it was found that the characteristics of chitosan have a yield value of 50.88%, water content 5.9%, ash content 0.67% and chitosan dissolves in glacial acetic acid. The results of the research show that chitosan has similar functional groups to standard chitosan and the degree of deacetylation is 80.25%. This research has met the chitosan standard (SNI 7949:2013) with a percentage of the degree of deacetylation of chitosan that meets the standard (>60%).
Antibacterial Activity Of Freshwater Lobster Shells (Cherax quadricarinatus) Against Escherichia coli Putri Hafizha; Ridwanto Ridwanto; Anny Sartika Daulay; Haris Munandar Nasution
Indonesian Journal of Science and Pharmacy Vol. 1 No. 3 (2024): Indonesian Journal of Science and Pharmacy
Publisher : Pustaka Media Publishing

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Abstract

People still do not utilize freshwater lobster (Cherax quadricarinatus) shells optimally, even though the chitin compound contained in this waste can be modified into chitosan through chemical reactions. Chitosan obtained from freshwater lobster shells can be used as an antibacterial. This study aims to test the antibacterial activity of chitosan from freshwater lobster shell waste against Escherichia coli bacteria. Making chitosan is carried out through three processes, namely, demineralization, deproteination, and deacetylation stages. Then, characterization of the chitosan is carried out, which includes water content, ash content, yield, and solubility. The research results showed that the chitosan obtained in this study was 43.96%, and the degree of deacetylation value of freshwater lobster shell chitosan was 75.11%. Chitosan with a concentration of 0.3, 0.5, 0.7, and 0.9% provides an inhibition zone of 13.5, 15.9, 16.8, and 17.2 mm, respectively, against Escherichia coli. Thus, a concentration of 0.9% chitosan from freshwater lobster shells has better antibacterial activity and is categorized as having strong inhibitory power.