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All Journal Jurnal Kartika Kimia Jurnal Abdimas Kartika Wijayakusuma

Jasmansyah Jasmansyah

Jurusan Kimia, Fakultas Sains dan Informatika, Universitas Jenderal Achmad Yani

Author-ID : 4042371

Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Social Sciences Other

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Articles

Activated Carbon from Cassava Peel as Adsorbent of Lead Metal (Pb2+) in the Water Anggi Suprabawati; Neng Wiwi Holiyah; Jasmansyah Jasmansyah
Jurnal Kartika Kimia Vol 1 No 1 (2018): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Cassava peels contained carbon elements about 59.31%, it became the base of using cassava peels as activated carbon. One of utilization of activated carbon was adsorption metal lead. Production of activated carbon was conducted in 3 steps were dehydration, carbonation and activation. Study had been conducted by comparing characteristic of activated carbon without activator and activated carbon with variation of KOH concentration as activator were 0.2 M; 0.4 M and 0.6 M so that could be known the optimal KOH concentration. Characteristic testing was conducted for water content, ash content, adsorption of iodium and adsorption of methylene blue also adsorption of lead metal. Measuring of adsorption metal lead was done by Atomic Absorption Spectroscopy. Experiment result shows activated carbon with KOH 0.4 M has best characteristic by water content 3.79%, ash content 8.09%, adsorption of iodium 863 mg/g and adsorption of methylene blue 3116 mg/g also adsorption of metal lead 98%.

Antibacterial Activity of Ethyl Acetate Extract of Red Ginger (Zingiber officinale Roscoe var. Sunti) Against Bacteria of Staphylococcus aureus and Escherichia coli Sari Purbaya; Lilis Siti Aisyah; Jasmansyah Jasmansyah; Wenny Eliza Arianti
Jurnal Kartika Kimia Vol 1 No 1 (2018): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Red ginger rhizome (Zingiber officinale Roscoe var. Sunti) is one of the herbs that is widely used as traditional medicine. The present study was to determine the secondary metabolites contained in red ginger rhizome plants and antibacterial activity against Staphylococcus aureus and Escherichia coli bacteria. A total of 483.2 grams of red ginger powder was extracted by maceration method obtained from ethyl acetate extract 15.85 g. Antibacterial activity of red ginger extract against S. aureus and E. coli using microdilution method showed that ethyl acetate extract could inhibit S. aureus growth by MIC (Minimum Inhibitory Concentration) 6.3% and MBC (Minimum Bactericidal Concentration) 25% and extract Ethyl acetate red ginger rhizome can Minimum MIC (E. Inhibition Concentration) E. coli with a minimum inhibitory concentration of 25% and MBC (Minimum Bactericidal Concentration) 50%. The results showed that the red ginger rhizome ethyl acetate extract was the most influential and had more potential to inhibit the growth of Gram positive bacteria compared to inhibition of Gram negative.

Pengembangan Pembelajaran Jarak Jauh Bidang Kimia : Pemanfaatan Teknologi Informasi dalam Pembelajaran Kimia Yenny Febriani Yun; Sari Purbaya; Abdi Wadud Safi'i; Dewi Meliati Agustini; Rahmaniar Mulyani; Anggi Suprabawati; Hernandi Sujono; Lilis Siti Aisyah; Valentina Adimurti Kusumaningtyas; Arie Hardian; Jasmansyah Jasmansyah; Senadi Budiman; Trisna Yuliana; Anceu Murniati; Muljadji Agma
Jurnal Abdimas Kartika Wijayakusuma Vol 2 No 1 (2021): Jurnal Abdimas Kartika Wijayakusuma
Publisher : LPPM Universitas Jenderal Achmad Yani

Abstrak: Perkembangan metode pembelajaran saat ini terus berkembang seiring berkembangnya ilmu pengetahuan dan teknologi. Termasuk dalam situasi pandemi seperti ini, diperlukan media pembelajaran yang memadai agar tujuan belajar mengajar tercapai. Namun sampai saat ini media pembelajaran interaktif belum berkembang dengan optimal di Indonesia, meliputi tingkat pemahaman dan tingkat keterampilan guru dan dosen yang masih rendah. Maka upaya yang dilakukan untuk mengatasi situasi permasalahan tersebut di atas yaitu dengan memberikan beberapa materi yang terkait dengan upaya mengembangkan media pembelajaran interaktif agar pembelajaran yang diberikan meningkatkan minat dan kualitas belajar siswa. Bentuk kegiatan yang cocok yaitu webinar series dan workshop pelatihan pembuatan media pembelajaran secara interaktif. Pendekatan yang dilakukan melalui kegiatan webinar tentang literasi sains kimia dan workshop on line tentang kimia komputasi. Hasil kegiatannya yaitu untuk meningkatkan pemahaman masyarakat tentang pemanfaatan teknologi dan pengembangan media pembelajaran interaktif maka diperlukan suatu kegiatan berbentuk webinar yang bermanfaat bagi mereka dan menjelaskan bagaimana mengembangkan dan membuat media pembelajaran yang mudah dan dapat diterima oleh siswa dan mahasiswa, sedangkan untuk meningkatkan keterampilan diperlukan kegiatan workshop/pelatihan dalam rangka meningkatkan pembuatan media belajar yang atraktif. Kata kunci: metode pembelajaran, situasi pandemi, webinar series, workshop pelatihan, dosen, guru

Co-Authors Abdi Wadud Safi'i Anceu Murniati Anggi Suprabawati Arie Hardian Dewi Meliati Agustini Hernandi Sujono Lilis Siti Aisyah Muljadji Agma Neng Wiwi Holiyah Rahmaniar Mulyani Sari Purbaya Senadi Budiman Trisna Yuliana Valentina Adimurti Kusumaningtyas Wenny Eliza Arianti Yenny Febriani Yun

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