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All Journal Jurnal Inovasi Teknik Kimia Edukimia Hydrogen: Jurnal Kependidikan Kimia
Syahputri, Salsabila Dia
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Chemical Engineering, Chemistry & Bioengineering Chemistry Education Other

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Kajian Literatur Jenis Asesmen dalam Pembelajaran Kimia Ramadani, Pino; Hilalliyah, Nur; Maulina, Tiara; Syahputri, Salsabila Dia; Ridwansyah, Muhammad; Rahmadani, Agung
Edukimia Vol 7, No 1 (2025): Edukimia - Vol. 07, Issue 01
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ekj.v7.i1.a569

Abstract

Pembelajaran kimia di sekolah sering kali menggunakan teknik asesmen yang kurang tepat untuk mengukur hasil belajar. Pendidik memerlukan asesmen yang tepat untuk mengevaluasi hasil belajar peserta didik yang ingin diukur. Tujuan kajian literatur ini untuk mengidentifikasi jenis-jenis asesmen dalam pembelajaran kimia. Metode yang digunakan ialah narrative literature review. Terdapat 6 jenis asesmen yang dapat digunakan dalam mengevaluasi hasil belajar dalam pembelajaran kimia. Jenis asesmen tersebut yakni asesmen formatif, sumatif, diagnostik, autentik, teman sejawat, dan diri. Setiap asesmen dapat mengukur hasil belajar yang berbeda-beda. Penggunaan teknik asesmen yang tepat dapat membantu pendidik dalam mengevaluasi kelebihan dan kekurangan selama proses pembelajaran kimia sehingga ketercapaian tujuan pembelajaran kimia dapat dievaluasi
Literature Review: Alkaloid Compounds in Medicinal Plants: Mechanisms and Anti-Diabetic Potential Rahmadhani, Ade Novira; Rismawati, Lia; Nurramadhani, Aisyah Zahra; Syahputri, Salsabila Dia; Saputri, Rindiani Dwi; Usman, Usman
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 3 (2025): June 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i3.16012

Abstract

Alkaloids are a group of chemical compounds found in nature with the most basic nitrogen atoms. As many as 20% of plant species contain alkaloid compounds, one of which is flowering plants. Plants that contain alkaloid compounds have the potential to be antidiabetic agents. This literature review research uses the narrative literature review method. Using keywords from the range of 2014-2024, a total of 25 articles were obtained. Diabetes is a common metabolic disease caused by insulin deficiency. The plants that contain bioactive alkaloid compounds are Catharanthus roseus, Portulaca oleracea L. (PO), Momordica charantia (Bitter Melon), Uncaria Nervosa Elmer (Bajakah), Peperomia Pelucida (Water Pepper), Mulberry, Ageratum conyzoides L (Ageratum), Syzygium sp (Red Pakoba Fruit), Sansevieria trifasciata (Mother-in-law's Tongue), Triumfetta cordifolia, Phrynium Capitatum (Rice Leaf), and Annona Muricata L. (Soursop Leaf), which have been proven to contain alkaloid activity compounds that can be used as anti-diabetic agents. Alkaloid compounds play an essential role in diabetes management through various mechanisms that regulate blood glucose levels.
PEMANFAATAN KARBON SISA HASIL PEMBENTUKAN KRISTAL LIMBAH TULANG IKAN TENGGIRI (SCOMBEROMORUS COMMERSON LACEPEDE) DAN IKAN BELIDA (CHITALA LOPIS) UNTUK MENGADSORPSI ZAT WARNA SINTETIK CONGO RED Ramadani, Pino; Fransiska, Firnanda Zuni; Putri, Aisyah Adinda; Maharani, Tiara; Syahputri, Salsabila Dia; Rahmadani, Fitri Nur; Wirhanuddin, Wirhanuddin; Nurhadi, Mukhamad
Jurnal Inovasi Teknik Kimia Vol. 10 No. 3 (2025): July | INTEKA - Jurnal Inovasi Teknik Kimia
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v10i3.13027

Abstract

To date, industrial wastewater treatment efforts have largely relied on conventional methods that are sensitive to environmental changes and less effective in degrading complex dyes such as Congo Red. One promising alternative approach is adsorption using biomass-based activated carbon, including waste derived from fish bones. This study aims to investigate the properties, surface characteristics, and adsorption mechanism of residual carbon obtained from crystal formation processes using waste bones of mackerel and featherback fish for Congo Red removal. The methodology involved carbonization at 500 °C, followed by sulfonation with concentrated H₂SO₄, and adsorption experiments with varying carbon particle size, contact time, and initial Congo Red concentration. The results demonstrate that fish bone waste carbon is highly effective in adsorbing Congo Red, with removal efficiency increasing with contact time and reaching equilibrium within 10 minutes at 99.8%. The optimum particle size was 200 mesh, and the maximum adsorption capacity was observed at Congo Red concentrations below 600 mg L⁻¹. Isotherm analysis revealed that the adsorption process follows the Langmuir model, with a maximum adsorption capacity of 16,666.6 mg g⁻¹. Meanwhile, kinetic data indicated that the adsorption behavior conforms to a pseudo-second-order model, with a rate constant of 666.6 g mg⁻¹ h⁻¹ at 25 °C.
Co-Authors Fitri Nur Rahmadani Fransiska, Firnanda Zuni Hilalliyah, Nur Maulina, Tiara Muhammad Ridwansyah Mukhamad Nurhadi, Mukhamad Nurramadhani, Aisyah Zahra Putri, Aisyah Adinda Rahmadani, Agung Rahmadhani, Ade Novira Ramadani, Pino Rismawati, Lia Saputri, Rindiani Dwi Tiara Maharani, Tiara Usman Usman Wirhanuddin, Wirhanuddin