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All Journal Alchemy : Journal of Chemistry Jurnal Pendidikan IPA Indonesia
M. Rahman
Program Studi Magister Ilmu Fisika Jurusan Fisika Fakultas MIPA Universitas Brawijaya
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Materials Science & Nanotechnology

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Teachers’ Performance in Science Learning Management Integrated with Character Education Isdaryanti, B.; Rahman, M.; Sukestiyarno, Y. L.; Florentinus, T. S.; Widodo, W.
Jurnal Pendidikan IPA Indonesia Vol 7, No 1 (2018): March 2018
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v7i1.12887

Abstract

The research aims at revealing the performance of teachers in science learning management integrated with character education. This study employed qualitative research method. Based on the result of the t-test of the correlation coefficient, this study obtained t value 4,210 with significance 0,001. The significance value 0,001 < 0,05 showed that there is influence from teachers’ performance in arranging learning media integrated with character education to the teachers’ performance in science learning. The conclusion of research stated that the performance of science teachers in junior high schools in Semarang City in integrating character education is categorized into a very good category with average score 85,05.
ISOLASI ASAM-9Z,12Z,15Z-OKTADEKATRIENOAT DARI BIJI SELASIH (Ocimum basilicum) Fasya, Ahmad Ghanaim; Retnowati, Rurini; Rahman, M.; Duengo, Suleman; Warsito, Warsito
ALCHEMY ALCHEMY (Vol.2 No.1
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (783.743 KB) | DOI: 10.18860/al.v0i0.2300

Abstract

The α-linolenic acid (9,12,15-octadecatrieonic acid) is omega-3 fatty acid that more active than other fatty acids to inhibit cell membrane damages, formation and growth of brain functions, antiinflamatory and prevent several cronic deseases like lung desease and arthrytis. Some research explain that geometri of omega-3 fatty acids had effect on its bioactivity. This research purpose was to isolate α-linolenic acid with geometry Z,Z,Z (9Z,12Z,15Z-oktadekatrienoat).O. basilicum seeds oil was isolated from O. basilicum seeds using Soxhlet extraction with n-hexane, then hidrolized by 12 % solution of KOH in aquadest. The α-linolenic acid was separated from other fatty acids by urea inclusion methods. The optimum condition of urea inclusion was determined in various temperature     (+ 5, + 3, + 1, + (-1), + (-3), + (-5))0C and ratio of fatty acid : urea 1:1; 1:1,5; 1:2; 1:2,5; 1:3; 1:3,5; 1:4.From this research, extraction of O. basilicum seeds oil with n-hexane as solvent resulted clear yellow-brown oil with refractive indeks 1,466 and density 0,855 g/mL. Gas Chromatography (GC) analysis of fatty acids hidrolyzed from   O. basilicum oil showed peak at tR= 19,949 minutes with relative percentage 70,72 %. Base on Mass Spectrum (MS), the fragmentation of this compound, with  tR= 19,949 minutes, was identic with 9Z,12Z,15Z-oktadecatrienoic acid.Isolation of α-linolenic acid from other fatty acids using urea inclusion at temperature 0-2 0C dan rasio fatty acid: urea 1:1,5 showed nonadduct fraction contains compound with tR= 19,980 minutes and relative percentage 88,51 %. Base on Mass Spectrum (MS), the fragmentation of this compound, with tR= 19,980 minutes, was identic with 9Z,12Z,15Z-oktadecatrienoic acid.
Co-Authors Ahmad Ghanaim Fasya, Ahmad Ghanaim Florentinus, T. S. Isdaryanti, B. Rurini Retnowati Sukestiyarno Sukestiyarno Suleman Duengo W. Widodo Warsito Warsito