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All Journal Indonesian Journal of Pharmaceutical Science and Technology Chimica et Natura Acta Jurnal Pena Karakter : Jurnal Pendidikan Anak dan Karakter
Achmad Zainuddin
Universitas Jenderal Achmad Yani
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Education Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology

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RESOLUTION OF A RACEMIC ISOLEUCINE MIXTURE BY USING METHYL L-MANDELATE Maharani, Rani; Hidayat, Ace Tatang; Sumiarsa, Dadan; Zainuddin, Achmad; Hidayat, Ika Wiani
Chimica et Natura Acta Vol 4, No 3 (2016)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (237.517 KB) | DOI: 10.24198/cna.v4.n3.10991

Abstract

A methyl ester of L-mandelic acid was found to be an effective resolving agent for resolution of commercial DL-isoleucine. The resolution was based on Steglich esterification between methyl L-mandelate and Boc-DL-isoleucine. The two resolved isomers were easily separated by using a conventional flash-column chromatography, giving quantitatively good yields. Unfortunately, the methyl L-mandelate was found to be ineffective to resolve four stereoisomers of Fmoc- isoleucine.
Synthesis N1-Tersier-Butilteobromin from Teobromin and Tersier-Butylbromides Husein, Sri Gustini; Zainuddin, Achmad; Hoeruman, Sani
Indonesian Journal of Pharmaceutical Science and Technology Vol 5, No 3 (2018)
Publisher : Indonesian Journal of Pharmaceutical Science and Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.687 KB) | DOI: 10.15416/ijpst.v5i3.17931

Abstract

Xantine derivatives are known to have some pharmacological activity, such as a bronchodilator. The substitution on atoms N1 xantine can improve the activity and selectivity as a tracheaspasm. The purpose of this research was to investigate the influence of concentration sodium hydroxide in sodium acetate as solvent used on the production yield of N1-tert-butilteobromin. The result of the synthesis was isolated using chloroform and purified with the preparative thin layer chromatography. The molecule structure of N1-tert-butilteobromin was confirmed using ultraviolet and infrared spectrophotometry. The result showed that sodium hydroxide concentration could effect the results of yield. The yields of 4%, 8%, and 12% sodium hydroxide concentration were 3.7% (0.074 g), 7.2% (0.144 g), and 1.3% (0.026 g), respectively.Keywords: N1-tert-butylteobromin, sodium hydroxide, tert-butylbromide, theobromine
WORKSHOP PEMBUATAN CHIPS TULANG IKAN LELE UNTUK MENUMBUHKAN KARAKTER KEWIRAUSAHAN ANAK Zainuddin, Achmad; Kurnia, Adinda Salsabila; Sirojuddin , Ahmad; Hujairi, Ahmad Walid; Anastasia , Ajeng Kinanti; Izzah, Aizzatul; Aninda , Alfina Dea; Tsabitah, Almirah Inas; Wiyanto , Andiya Fansa Eravani; Puspita , Atika Aulia; Rosidah , Cholifah Tur
Jurnal Pena Karakter : Jurnal Pendidikan Anak dan Karakter Vol. 6 No. 2 (2024): Jurnal Pena Karakter: Jurnal Pendidikan Anak dan Karakter
Publisher : STKIP AL HIKMAH SURABAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62426/

Abstract

Workshop ini dilatarbelakangi oleh potensi desa Wadungasri yang memiliki pengolahan Dimsum dari daging ikan lele. Tujuan dari workshop ini adalah untuk menumbuhkan jiwa kewirausahaan pada siswa SD dalam mempersiapkan mereka untuk belajar menjadi calon wirausahawan masa depan yang kreatif dan inovatif serta mengimplementasikannya dalam kegiatan P5 di sekolah dan menanamkan karakter pada siswa. Selain itu siswa diajarkan untuk memanfaatkan potensi yang ada di sekitarnya melalui kegiatan ekonomi (produksi, distribusi dan konsumsi). Teknik pengumpulan data yang digunakan adalah deskriptif. Diharapkan hasil dari workshop ini dapat menanamkan nilai-nilai karakter pada anak yang tercermin dalam kemasan produk yaitu karakter positif saat makan
Co-Authors ?Ainiah, Izzatul Ace Tatang Hidayat Ade Kania Ningsih, Ade Kania Anastasia , Ajeng Kinanti Aninda , Alfina Dea Arif Rahman Hakim Cholifah Tur Rosidah Dadan Sumiarsa Euis Julaeha Faizal Hermanto Hoeruman, Sani Hujairi, Ahmad Walid Ika Wiani Izzah, Aizzatul Kurnia, Adinda Salsabila Lilis Siti Aisyah, Lilis Siti Puspita , Atika Aulia Rani Maharani Sabila, Peny Sirojuddin , Ahmad Sri Gustini Husein Tati Herlina Tri Reksa Saputra, Tri Reksa Tsabitah, Almirah Inas Unang Supratman Wiyanto , Andiya Fansa Eravani Yenny Febriani Yun, Yenny Febriani