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Syahrani, Achmad
Departemen Ilmu Kefarmasian, Fakultas Farmasi, Universitas Airlangga, Jawa Timur, Indonesia
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Journal : JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA

 1 
Optimasi Kondisi Sintesis Asam 4-Benzoiloksisinamat Menggunakan Iradiasi Gelombang Mikro Ilham Bagus Sagitaras; Achmad Syahrani; Juni Ekowati
JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA Vol. 6 No. 1 (2019): JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.163 KB) | DOI: 10.20473/jfiki.v6i12019.37-43

Abstract

Pendahuluan: Salah satu usaha meningkatkan aktivitas asam p-kumarat adalah meningkatkan sifat lipofiliknya. Reaksi benzoilasi gugus fenol asam p-kumarat merupakan salah satu strategi meningkatkan sifat lipofilik. Iradiasi microwave merupakan salah satu alternative metode untuk meningkatkan efisiensi dalam reaksi organik. Selain memiliki kelebihan mempercepat reaksi kimia, penggunaan iradiasi gelombang mikro juga dapat menyebabkan kerusakan struktur kimia produk maupun terjadinya reaksi samping lainnya. Tujuan: Mendapatkan kondisi optimum reaksi sintesis asam 4-benzoiloksisinamat. Metode: asam 4-benzoiloksisinamat disintesis dengan cara mereaksikan asam p-kumarat, benzoil klorida dan piridin sebagai katalis. Reaksi benzoilasi dilakukan dengan iradiasi gelombang mikro pada daya 180, 270, dan 360 Watt. Karakterisasi asam 4-benzoiloksisinamat dilakukan menggunakan alat  spektrometer UV-Vis, FT-IR dan 1H–NMR. Hasil: Persentase hasil yang diperoleh pada daya 180, 270, dan 360 Watt berturut-turut adalah sebagai berikut 49,3%, 58,5%, and 47,7%. Terdapat perbedaan yang signifikan persentase hasil yang diperoleh pada daya 270 Watt dengan persentase hasil pada daya 180 Watt dan 360 Watt, tetapi tidak ada perbedaan bermakna persentase hasil pada daya 180 Watt dan 360 Watt. Persentase hasil terbesar diperoleh selama enam puluh detik pada daya 270 Watt, yaitu 61,4%. Jika reaksi dilakukan lebih dari enam puluh detik, terjadi kerusakan struktur senyawa target. Kesimpulan: Kondisi optimum sintesis asam 4-benzoiloksisinamat menggunakan iradiasi gelombang mikro adalah selama enam puluh detik pada daya 270 Watt.
Fibrinolytic Protease Production: Impact of Initial pH and Temperature in Solid-State Fermentation by Rhizopus microsporus var. oligosporus FNCC 6010 Rebhika Lusiana; Achmad Toto Poernomo; Achmad Syahrani
JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA Vol. 10 No. 3 (2023): JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jfiki.v10i32023.290-299

Abstract

Background: Fibrinolytic enzyme is one of the cardiovascular disease therapies. Rhizopus microsporus var. oligosporus is microorganism that has been evaluated to produce fibrinolytic protease by fermentation. This study conducted fermentation of helianthi annui semen (sunflower seed) by Rhizopus microsporus var. oligosporus to produce fibrinolytic enzyme. Objective: This study aims to determine the effect of Initial pH and incubation temperature and its optimization in the production of fibrinolytic protease by Rhizopus microsporus var. oligosporus FNCC 6010 in solid-state fermentation on helianthi annui semen (sunflower seed) substrate.  Optimum condition was determined by maximum protease and fibrinolytic activity. Method: A crude enzyme of protease fibrinolytic was obtained from the supernatant extract of fermented sunflower seed. Protease activity was measured by the skimmed milk agar (SMA) plate method, and fibrinolytic activity was determined by the fibrin agar plate method. Result: It was found that the starting pH affects both the proteolytic and fibrinolytic activity of enzymes that are produced in fermentation. The starting pH of 5.0 showed higher fibrinolytic and proteolytic activity values compared to the starting pH of 7.0. The incubation temperature 33±1 °C had the higher activity compared to 28±1 °C or 37±1 °C. Conclusion: Initial pH and incubation temperature affect the proteolytic and fibrinolytic activity of crude enzyme extracted from fermented sunflower seed by Rhizopus microsporus var. oligosporus. The optimum condition for producing fibrinolytic protease in the state fermentation method was an initial pH of 5.0 and an incubation temperature of 33±1°C.
Co-Authors Achmad Toto Poernomo AFAF BAKTIR Amelia Lorensia Andang Miatmoko Aty Widyawaruyanti Bambang Tri Purwanto Hadi Poerwono I GUST MADE SANJAYA Ilham Bagus Sagitaras Isnaeni Juni Ekowati Kholis Amalia Nofianti Lailatul Nuraini Marcellino Rudyanto Marthy Meliana Ariyanti Jalmav Noor Erma Nasution Rebhika Lusiana Rebhika Lusiana Retno Widyowati Riesta Primaharinastiti Siswandono, Siswandono Suciati Suciati Sugijanto Suyanto Suyanto Suzana Titik Taufikurohmah Tristiana Erawati Wiwied Ekasari