Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Jurnal Pendidikan Indonesia Gemilang Sciences of Pharmacy
Widyastuti, Lina
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Education Health Professions Mathematics Medicine & Pharmacology Public Health Social Sciences Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Formulation and Stability Evaluation of Red Dragon Fruit (Hylocereus polyrhizus) Extract Gel Febrianti, Novi; Widyastuti, Lina; Saputri, Septiana; Irham, Lalu Muhammad
Sciences of Pharmacy Volume 4 Issue 4
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/sciphar0404379

Abstract

Red dragon fruit (Hylocereus polyrhizus) is known for its strong antioxidant properties and potential anti-aging effects. To enhance its benefits and improve usability, this fruit extract was formulated into a gel preparation. This study aimed to determine the optimal proportions of Carbopol 940 and triethanolamine (TEA) to obtain a gel with desirable physical characteristics. The flesh of red dragon fruit was juiced and concentrated to produce an 8% extract. Three formulations were prepared with varying ratios of Carbopol 940 to TEA: 0.5%:0.3% (F1), 1.2%:0.7% (F2), and 2%:1.2% (F3). The gels were evaluated for physical properties, antioxidant activity, and antibacterial activity. The most promising formula was subjected to stability testing for three cycles under different temperature conditions: cold (3°C), room temperature (27°C), and climatic chamber (40°C, 75% RH). Results showed that formula F2 exhibited a characteristic red color, clear appearance, distinctive oleum rosae aroma, moderately thick and homogeneous consistency, viscosity of 3112.47 ± 177.90 cps, spreading diameter of 5.20 ± 0.20 cm, adhesion time of 18.45 ± 0.89 s, and pH of 5.33 ± 0.02. No significant changes were observed after the stability testing (p > 0.05), indicating that the formulation remained stable under all temperature conditions. F2 also showed higher antioxidant activity than F1 and better antibacterial properties than F3. Its stability and bioactivity support its potential as a promising natural cosmeceutical formulation.
The Effect of the Discovery Learning Model through the Aptitude Treatment Interaction (ATI) on Student Learning Outcomes on the Human Motion System Concept Widyastuti, Lina; Usman, Usman; Rifqiawati, Ika
Jurnal Pendidikan Indonesia Gemilang Vol 2, No 2 (2022)
Publisher : Gemilang Maju Publikasi Ilmiah (GMPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53889/jpig.v2i2.139

Abstract

This study aimed to determine the effect of the Discovery Learning model through the Aptitude Treatment Interaction on students' cognitive abilities in the concept of the human motion system. The method used in this research is quasi-experimental with a pretest-posttest control group design. The population in this research is all students in grade XI MIPA SMAN A Serang City in the 2021/2022 academic year. The sample of this research is class XI MIPA 1 as the experimental class and class XI MIPA 2 as the control class. The sampling technique used in this research was purposive sampling. Data collection technique used posttest to measure student cognitive abilities taken at the beginning and the end of learning. Learning outcomes showed that the average value of students' cognitive skills in experimental class is 84, an excellent category. In contrast, the average value in the control class produces a score of 74 in the superb category. To prove the hypothesis, the writer counted the significance by using a t-test (t-test) of the Independent Simple T-test, the student's cognitive learning outcomes are 0,002, so it can be concluded that there is an effect of the discovery learning model through the Aptitude Treatment Interaction (ATI) approach on student learning outcomes on the concept of motion systems in humans.
Co-Authors Ika Rifqiawati, Ika Lalu Muhammad Irham Novi Febrianti Saputri, Septiana Usman Usman