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All Journal Current Biochemistry ANWARUL: Jurnal Pendidikan dan Dakwah
Mustika Weni
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Religion Biochemistry, Genetics & Molecular Biology Education Social Sciences Other

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Toxicity Test of Roots, Stems and Leaves of Lemongrass (Cymbopogon nardus) Waras Nurcholis; Mustika Weni; Rizki Fitria; Najmah; Kornelia Rosvita Manek; Baharuddin Yusuf Habibie
Current Biochemistry Vol. 6 No. 2 (2019)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.6.2.6

Abstract

Lemongrass traditionally can be used as a mixture of water bath for rheumatic patients, antiseptic medicine, headache reducer, unbend the leech bite and overcome insect bite, but, the bioactivity potential of citronella lemongrass still remains unknown. The content of citronella lemongrass is known to have secondary metabolites such as flavanoid, phenolic, and terpenoid. The aim of this study is to determine the LC50 value (Lethality Concentration 50) in the root, stem, and leaves part of citronella lemongrass. Citronella lemongrass is extracted with maceration method using 96% ethanol solvent. Rendement value of leaf extract is greater than the value of stem and root extract, which is equal to 8.69% for stem extract, 3.73% for root extract and 9.70% for leaves extract. A toxicity test was performed by using the BSLT method, shrimp larvae were inserted into the test solution with each different solution concentration. LC50 values were obtained based on the calculation of percent mortality of shrimp larvae by using probit analysis. LC50 ethanol extract 96% of citronella lemongrass leaf is 67.841 μg/ml, citronella lemongrass stem is 31.604 μg/ml and citronella lemongrass root is 10.489 μg/ml. LC50 value shows that ethanol extract 96% of root, stem, and leaf of citronella lemongrass have no bioactivity potential due to the value of LC50 is greater than 1000 μg/ml. Keywords: BSLT, Cymbopogon nardus, cytotoxicity, LC50
Pemanfaatan Teknologi Media Pembelajaran oleh Guru di SDIT Bunayya pada Masa Pandemi Covid-19 Endah Nirmalasari; Mustika Weni; Nadya Ramadhinia; Rosa Amelia
ANWARUL Vol 2 No 1 (2022): ANWARUL: Jurnal Pendidikan dan Dakwah
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.395 KB) | DOI: 10.58578/anwarul.v2i1.202

Abstract

This study aims to determine the use of online learning technology during the Covid-19 virus pandemic which has spread throughout the world, especially Indonesia using the google classroom, YouTube, WAG, Edmodo, Zoom, and Googlemeet platforms. The research we conducted used a qualitative approach by collecting data with several methods that we did in writing this article. We use the interview method, literature study and literature, then the results show that technology has many roles and benefits in the world of education, especially during distance learning in the midst of the Covid-19 pandemic. By conducting interviews with teachers and students, it can be concluded that the learning media technology that is widely used by elementary schools is WAG and also google classroom.
Co-Authors Baharuddin Yusuf Habibie Endah Nirmalasari Kornelia Rosvita Manek Nadya Ramadhinia Najmah Rizki Fitria Rosa Amelia Waras Nurcholis