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All Journal BERITA BIOLOGI Kurikula Jurnal Pendidikan
Purnama Dewi
PSIK FK UNUD
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Languange, Linguistic, Communication & Media Mathematics Other

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SEMI PURIFIKASI DAN UJI REAKSI TRANSGLUKOSILASI P-GLUKOSIDASE DARI ASPERGILLUS PULVERULENTUS Sulistyo, Joko; Soeka, Yati Sudaryati; Dewi, Purnama
BERITA BIOLOGI Vol 4, No 4 (1998)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i4.1263

Abstract

An extracellular p-glucosidase[EC 3.2.1.21]derived from Asvereillus vulverulentus were separated and partially purified by successive chromatographies and its some characterization and transglucosylation capacity were studied.The purification protocol included precipitation with ammonium sulphate,gel filtration,ion exchange chromatography and native polyacrylamide gel electrophoresis.The enzyme readily hydrolysed cellobiose to form transglucosylation products in the present of primary alcohol acceptors.This P-glucosidase was stable at temperatures up to 70 °C and from pH 2.5 to 8.5, while its highest activity was in the pH 4.5 at 65°C.
IMPLEMENTASI MODEL MIND MAPPING DALAM PEMBELAJARAN SEJARAH PADA PESERTA DIDIK KELAS X SMAN 3 PONTIANAK : Pembelajaran Sejarah, Model Mind Mapping Dewi, Purnama; Firmansyah, Andang; Firmansyah, Haris
Kurikula : Jurnal Pendidikan Vol 9 No 2 (2025): Kurikula: Jurnal Pendidikan Vol 9 No 2 Tahun 2025
Publisher : Fakultas Tarbiyah Institut Agama Islam Ngawi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56997/kurikula.v9i2.1884

Abstract

CT This research was conducted to investigate how the mind mapping model isapplied in history learning for tenth-grade students at SMAN 3 Pontianak. The type ofresearch used in this study is qualitative descriptive research. The informants in this study arehistory teachers, tenth-grade students, and the curriculum representative. Data collectiontechniques using observation, interviews, and documentation. Data analysis techniquesconsist of data collection, data reduction, data presentation, and conclusion drawing. Theresults of this study indicate that: First, the planning of history lessons conducted by theteacher includes the preparation of teaching materials in the form of teaching modules,teaching materials, and lesson content. Secondly, the implementation of history learningconsists of introductory, core, and closing activities. Learning activities using the mindmapping model have not been optimal, as they do not align with the teaching modulespreviously prepared by the teacher. Thirdly, the assessment of history learning in terms ofknowledge and skills is conducted through assigned tasks, while the attitude aspect isevaluated through attendance.
Co-Authors Andang Firmansyah Haris Firmansyah Joko Sulistyo Yati Sudaryati Soeka