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All Journal IJCER (International Journal of Chemistry Education Research) IJCR (Indonesian Journal of Chemical Research)
Aminati, Salmah
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Materials Science & Nanotechnology

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Enhancing Learning Interest in the Collaborative Learning Practitioner Lecture: Training on Determining the Viscosity of Palm Kernel Oil (PKO) Aminati, Salmah; Purwiandono, Gani
IJCER (International Journal of Chemistry Education Research) VOLUME 8, ISSUE 2, OCTOBER 2024
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol8.iss2.art10

Abstract

This study aims to determine the effects in physical chemistry class with the workshop sessions on measuring PKO viscosity by CV. Bina Agro Mandiri. The effects are evaluated through the enhancing of student's learning interest in the Physical Chemistry II class in Chemistry Program of the Islamic University of Indonesia, which presents a good avenue for this investigation. The study was conducted by classroom, practical and online action. The data were analyzed using a pie chart. Findings showed that the implementation of the practical was able to increase the student's learning interests. Through case analysis tasks, students participate significantly in the teaching-learning process.
Formulation of Sunscreen Body Lotion with A Combination of Chitosan and White Turmeric (Curcuma zedoaria Rosc.) Aminati, Salmah; Putri Arini, Regita; Dyah Nuraini, Herdita; Indah Fajarwati, Febi
INDONESIAN JOURNAL OF CHEMICAL RESEARCH Vol. 10 No. 2 (2025): Volume 10, ISSUE 2, 2025
Publisher : Chemistry Department, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol10.iss2.art5

Abstract

In this study, body lotion was made in four formula variations from white turmeric and chitosan as natural active ingredients. The objectives of this study were determine whether chitosan could be used as a good emulsifier in body lotion, to determine whether white turmeric could be used as a sunscreen in body lotion, and to determine the physical and chemical properties of body lotion resulting from the combination of chitosan and white turmeric. Characterized results of Chitosan using FTIR and obtained functional groups, namely O-H, C-H, C=O, N-H, and C-H with a %DD value 86,47%. White turmeric simplisia was characterized using FTIR and obtained functional groups O-H, C-H, and C=O, indicating the possible presence of chromophore groups in curcumin. A phytochemical screening test result showed that white turmeric contains alkaloids and flavonoids. There were four formulation variations, namely F0, F1, F2, and F3. Physical quality tests were conducted, including organoleptic, homogeneity, pH, stability, hedonic, irritation, and SPF tests. There were two body lotion formulas that met the requirement. In the hedonic test, F0 and F1 were preferred by the respondents. The maximum SPF value of the body lotion preparation in formula F3 was 20,00487, which falls into the ultra protection category.
Co-Authors Arini, Regita Putri Brilliany, Rhaina Annadroh Cahayaningsih, Ananda Capriyati Dini Aprilia , Segi Tasya Dyah Nuraini, Herdita Gani Purwiandono, Gani Indah Fajarwati, Febi Putri Arini, Regita Warahmah, Siti Aisyah Mawaddah