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Blood glucose levels in hyperglycemic white rats administered various preparations of bay leaves Zaenab, Siti; Nurwidodo, Nurwidodo
Jurnal Mangifera Edu Vol 10 No 1 (2025): Jurnal Mangifera Edu
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mangiferaedu.v10i1.230

Abstract

Elevated blood glucose levels, known as Hyperglycemia, are a key feature of diabetes mellitus (DM), which remains a primary global health challenge. The rising prevalence of type 2 diabetes and the side effects of synthetic drugs have led to interest in natural alternatives. Bay leaves (Syzygium polyanthum), commonly used in Indonesian cuisine, contain bioactive compounds such as flavonoids, tannins, and terpenoids that may have antidiabetic properties. This study examined the effect of bay leaves preparations—decoction, tea, and filtrate—on blood glucose levels in hyperglycemic white rats and identified the most effective form. A proper experimental design involved 25 male rats, divided into five groups: a negative control, a positive control (alloxan only), and three treatment groups (decoction, tea, and filtrate). Hyperglycemia was induced using alloxan (150 mg/kg BW), and treatments were given orally twice daily for 30 days. Blood glucose levels were measured before and after treatment using a GlucoDr glucometer. Data were analyzed using one-way ANOVA and the LSD test (α = 0.05). Significant differences were observed among groups (Fhit = 16.61 > Ftab = 2.87). The decoction group had the most considerable glucose reduction (112.4 mg/dL), closely followed by the negative control (118 mg/dL), while the tea and filtrate groups showed lesser effects. Decoction proved most effective, likely due to better compound extraction. These findings highlight the potential of bay leaves decoction as a natural remedy for hyperglycemia, warranting further clinical research.
Analisis Kontribusi Model Pembelajaran EMKONTAN terhadap Kreativitas dan Literasi Lingkungan dalam Memecahkan Masalah Lingkungan pada Siswa SMA Muhammadiyah 3 Batu Yuniarti, Fenti Nur; Nurwidodo, Nurwidodo; Hadi, Samsun
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October (In Progress)
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.633

Abstract

Education is crucial to shape the quality of superior and competitive human resources. challenges to the quality of education in Indonesia, especially related to the low creativity and environmental literacy of high school students, as well as the lack of participation in real environmental issues. The EMKONTAN learning model is proposed as an innovation to overcome these problems, because it integrates local environmental issues and encourages experience-based problem solving. This study investigates the impact of the EMKONTAN model on enhancing creativity and environmental literacy in solving ecological issues among 19 tenth-grade students at SMA Muhammadiyah 3 Batu, using a one-group pretest-posttest quasi-experimental design. Data were collected through creativity and environmental literacy tests, and observation. The data analysis with paired sample t-test showed a significant increase in both variables. The average creativity score increased from 36.00 (pre-test) to 39.42 (post-test), with a p value <0.001. Environmental literacy also increased significantly from 180.89 (pre-test) to 195.37 (post-test), with a p value <0.001. These findings indicate that the EMKONTAN learning model is effective in improving students' creative thinking skills and environmental literacy in solving environmental problems. This model encourages students to think critically, innovate, and understand environmental issues deeply through direct experience and reflection.