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All Journal PHI: Jurnal Pendidikan Matematika Hydrogen: Jurnal Kependidikan Kimia
Ulfa, Amanda
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Chemistry Education Mathematics

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Cytotoxic Activity of Gude Leaves (Cajanus cajan) using The Brine Shrimp Lethality Test (BSLT) Method Emelda, Andi; Hasnaeni, Hasnaeni; Ulfa, Amanda
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 2 (2024): April-May 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i2.11077

Abstract

Gude Leaves (Cajanus cajan) are a traditional medicinal plant for treating diarrhea. The ingredients contained in Gude leaves are flavonoids, such as kajanol, quarcetin and luteolin and also contain other secondary metabolites, tannins, saponins, alkaloids, terpenoids and phenols. Scientifically, Gude leaves have antimalarial, antidiabetic, anthelmintic, antioxidant, antibacterial and anticancer activity. This research aims to determine the toxicity of gude leaves (C. cajan) using the Brine Shrimp Lethality Test (BSLT) method. This research began by carrying out two extraction methods, namely maceration and UAE (Ultrasonic Assisted Extraction) on samples of gude leaves using 70% ethanol solvent. Then a phytochemical screening was carried out which showed that samples of gude leaves contained alkaloids, flavonoids, steroids, saponins and tannins. Experimentation the toxicity of gude leaf extract using maceration and UAE methods on Artemia Salina Leach larvae, each divided into 5 test groups, namely 4 treatment groups (concentrations of (250 ppm,  LC=23,33% & 33,33%) ; (500 ppm, LC= 56,67% & 60%); (750 ppm, LC= 70% & 73%); and (1000 ppm, LC= 80%) and 1 positive control group (sea water ). The research results can be seen through probit analysis by calculating the LC50 value. The LC50 value of gude leaf extract using the maceration method was 242.52 and the result of gude leaf extract using the UAE method was 394.16 (Toxic).  This research provides information regarding the toxic effects of gude leaf extract.
PENGGUNAAN MEDIA KUBUS DATA MATEMATIKA TERHADAP RESPONS DAN PENINGKATAN KEMAMPUAN MENYAJIKAN DATA DALAM BENTUK TABEL Ulfa, Amanda; Untari, Esti; Riana, Riana
PHI: Jurnal Pendidikan Matematika Vol 9, No 2 (2025): EDISI OKTOBER, 2025
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/phi.v9i2.528

Abstract

Pembelajaran matematika khususnya materi penyajian data seringkali dianggap peserta didik sekolah dasar abstrak dan sulit dipahami karena karakteristik peserta didik berada di tahap operasional konkret, ditambah dengan kurang menariknya media pembelajaran dan metode pembelajaran yang konvensional. Tujuan dari penelitian ini mengetahui penggunaan media kubus data matematika terhadap respons dan peningkatan kemampuan menyajikan data dalam bentuk tabel peserta didik kelas 3B SDN Bunulrejo 2 Kota Malang. Penelitian ini menerapkan konstruktivisme dengan media kubus data melalui tahapan penjelasan tujuan, pembagian kelompok dengan lembar kerja peserta didik, media konkret kubus data untuk memperoleh data sayur, buah, dan hewan, pencatatan hasil, presentasi tabel data, hingga refleksi pembelajaran. Pengumpulan data dilakukan dengan observasi sistematis, pre-test dan post-test sebagai evalusi hasil belajar, dan menggunakan analisis statistik deskriptif. Hasil yang diperoleh menunjukkan bahwa 85% peserta didik menunjukkan antusiasme tinggi, 85% berpartisipasi aktif dalam pembelajaran, 80% peserta didik dapat menjelaskan langkah-langkah penyajian data, serta terjadi peningkatan signifikan rata-rata nilai pre-test 57 menjadi rata-rata nilai post-test 86 atau naik 51%. Media kubus data terbukti mentransformasi konsep abstrak menjadi pengalaman nyata, meningkatkan keterampilan proses matematika, kemampuan kerja sama, dan komunikasi matematika peserta didik, sehingga berkontribusi dalam menciptakan pembelajaran matematika yang bermakna, interaktif, dan mengasyikkan berdasarkan karakteristik peserta didik sekolah dasar.
Cytotoxic Activity of Gude Leaves (Cajanus cajan) using The Brine Shrimp Lethality Test (BSLT) Method Emelda, Andi; Hasnaeni, Hasnaeni; Ulfa, Amanda
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 2 (2024): April-May 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i2.11077

Abstract

Gude Leaves (Cajanus cajan) are a traditional medicinal plant for treating diarrhea. The ingredients contained in Gude leaves are flavonoids, such as kajanol, quarcetin and luteolin and also contain other secondary metabolites, tannins, saponins, alkaloids, terpenoids and phenols. Scientifically, Gude leaves have antimalarial, antidiabetic, anthelmintic, antioxidant, antibacterial and anticancer activity. This research aims to determine the toxicity of gude leaves (C. cajan) using the Brine Shrimp Lethality Test (BSLT) method. This research began by carrying out two extraction methods, namely maceration and UAE (Ultrasonic Assisted Extraction) on samples of gude leaves using 70% ethanol solvent. Then a phytochemical screening was carried out which showed that samples of gude leaves contained alkaloids, flavonoids, steroids, saponins and tannins. Experimentation the toxicity of gude leaf extract using maceration and UAE methods on Artemia Salina Leach larvae, each divided into 5 test groups, namely 4 treatment groups (concentrations of (250 ppm,  LC=23,33% & 33,33%) ; (500 ppm, LC= 56,67% & 60%); (750 ppm, LC= 70% & 73%); and (1000 ppm, LC= 80%) and 1 positive control group (sea water ). The research results can be seen through probit analysis by calculating the LC50 value. The LC50 value of gude leaf extract using the maceration method was 242.52 and the result of gude leaf extract using the UAE method was 394.16 (Toxic).  This research provides information regarding the toxic effects of gude leaf extract.
Co-Authors Andi Emelda Esti Untari Hasnaeni hasnaeni, Hasnaeni Riana Riana, Riana