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All Journal Journal on Education Bubungan Tinggi: Jurnal Pengabdian Masyarakat Community Development Journal: Jurnal Pengabdian Masyarakat BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Sangkalemo Bohr: Jurnal Cendekia Kimia NAWASENA: Journal of Community Service
Wahyu Nugroho
Dosen Program Studi Pendidikan Kimia, Fakultas Keguruan Dan Ilmu Pendidikan Universitas Palangka Raya
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Energy Engineering Health Professions Languange, Linguistic, Communication & Media Mathematics Public Health Social Sciences Other

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Journal : BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan

 1 
DEVELOPMENT TEACHING MATERIAL OF ELEMENT PERIODIC PROPERTIES AT BASIC CHEMISTRY I EDUCATION CHEMISTRY PROGRAM DEPARTMENT OF UPR Mulawi; Wahyu Nugroho
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 6 No. 1 (2018): Journal Balanga Edisi Januari-Juni 2018
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

Students' learning outcomes in the chemistry education course FKIP University of Palangka Raya, shows students tend to have difficulty in understanding the concept, especially the properties of the period keperiodikan. One of the causes of low learning outcomes is the availability of books used as a learning resource for students. Based on the observation result, chemical learning resources in basic chemistry lecture I still have deficiency, that is not based on REACT (relating, experimenting, applying, cooperating, transferring). Therefore, to increase students' interest and motivation, it is better to conceptualize the nature of the periodicity of the elements in the form of development of teaching materials. The research will be conducted on students who are taking Basic Chemistry course I in Chemistry Education Study Program PMIPA FKIP Universitas Palangka Raya, Central Kalimantan. The design of teaching materials development is designed with attention to several aspects such as, aspects of definition, design, development, and testing on students.
PHYTOCHEMISTRY SCREENING AND ANTIOXIDANT ACTIVITY ASSAY USING DDPH OF TAYA (Nauclea orientalis) ETHANOL LEAF EXTRACT Wahyu Nugroho; Denada A.C
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 6 No. 1 (2018): Journal Balanga Edisi Januari-Juni 2018
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

This study aims to perform phytochemical screening and antioxidant test on Taya ethanol leaf extract (Nauclea orientalis). The ethanol extract was obtained by extracting the leaves of Taya by 10 grams using 100 mL of ethanol, macerated for 3 × 24 hours at room temperature then sealed, then filtered to obtain the filtrate, then concentrated. The extract is then used to identify secondary metabolites of alkaloids, flavonoids, terpenoids, steroids, saponins and phenolics. The antioxidant activity of the ethanol extract was measured by DPPH. The results showed that Taya plant leaves contained a group of secondary metabolite compounds of alkaloids, terpenoids, flavonoids, saponins and phenolics, while for steroids were not identified. The results of antioxidant activity test extract showed that ethanol extract have antioxidant activity with IC50 value that is 352,251 ppm.
Co-Authors Adhy Putri Rilianti Andi Muh Akbar Saputra Ansori Rahman Ayuchecaria, Noverda Aziz Rizki Miftahul Ilmi Dedek Helida Pitra Denada A.C Diplan Elfrida Roulina Simanjuntak I Nyoman Sudyana Iqbal, Rendy Muhamad Joni Bungai Joupy G Z Mambu Laila Rachmawati Laila Rachmawati Lilis Rosmainar Lilis Rosmainar Tambunan M. MISBACHUL HUDA Mulawi Natasya V. Leuwol Noverda Ayuchecaria Ronal Manurung Saftia Aryzki Sapriline Sari Namarito Simarmata Siti Unvaresi Misonia Beladona Slamet Widodo Widya Permata Dilla Wulida Arina Najwa Zimon Pereiz