penjelasan praktikum ddt
TRANSCRIPT
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1. Gambaran koloni 2. Gram: Morfologi & sifat Gram 3. Mobility (pergerakan): medium semi-solid4. Reaksi Biokimia 5. Identifi kasi Makromoleul: - Deteksi Ag miroba - Deteksi Ab - Deteksi DNA/RNA
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D. MACAM-MACAM MEDIUM
A. BIAKAN BAKTERI 1. Koloni Bakteri Gram positif 2. Koloni Bakteri Gram negatif
C. TES-TES BIOKIMIA
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A. BIAKAN BAKTERISasaran Pembelajaran1. Menyebutkan ciri-ciri dan
kandungan medium2. Menyebutkan ciri-ciri koloni 3. Menggambarkan morfologi dari
koloni
Dikerjakan1. Mengamati medium2. Mengamati sifat-sifat koloni3. Mengambarkan koloni
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Koloni terpisah, perhatikan penampilan koloni
Lempeng Agar Nutrien
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1. Tepi dan bentuk2. Besar 3. Elevasi4. Kejernihan5. Warna : pigmen, rx kimia6. Hemolisis : α, ß, & γ
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Warna Koloni : perubahan warna pH indikator
warna merah tidak berwarna
Koloni pada McConkey Agar
Fermentasi Laktose + Fermentasi Laktose -
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McConkey Agar Agar Nutrisi Laktose Bile → pertumbuhan Gr + terhambat Neutral red (indikator)
Laktose difermentasi → Koloni merah Laktose tidak difermentasi → koloni tdk berwarna
McConkey Agar → medium selektif differensial
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Warna koloni : pigmen
Lempeng Agar Nutrien
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Hemolisis ß hemodigesti & non-hemolisis
Lempeng Agar Darah
Medium Dasar + eritrosit domba
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mampu mengambarkan ciri-ciri medium serta ciri-ciri dan gambar koloni dua species jamur pada medium Sabouraud
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Candida albicans
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Candida albicans
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Aspergillus niger
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Aspergillus plavus
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Penicillim notatum
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Penicillim chrysogenum
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1. Metabolisme KH - Tes peragian gula-gula, Tes VP-MR2. Metabolisme protein - Tes indol, pembentukan H2S3. Metabolisme lemak (jarang)4. Penggunaan zat tertentu - Tes citrat: penggunaan citrat sebagai sumber
energi5. Dihasilkannya zat tertentu - Tes katalase, tes koagulase
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MEDIUM SIMUntuk :1.Motility Test
2. Indol Test
Metabolisme protein
Lar. Kovacs
Cincin merah
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TES INDOL
Reagens Kovacs
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glukosa laktosa
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METHYL RED TEST
VOGES-PRPODKAUER TEST
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Peragian gula-gula, pemecahan protein
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MANNITOL TEST
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Pemakaian Citrat sbgi sumber E
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COAGULASE TEST
Plasma + suspensi bakteri
Bakteri menghasilkan koagulase
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CATALASE TEST
+
-
Suspensi BakteriDitetesiH2O2 3% Katalase
+
Katalase
H2O2
H2O + O2
-
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DNAse TEST