Download - Mer
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GIZI YANG SEIMBANG
1.Karbohidrat2.Protein3.Lemak4.Air dan Mineral5.Vitamin
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KARBOHIDRAT
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Sumber
Mengapa karbohidrat penting ???
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Klasifikasi Karbohidrat
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n Category
3 Triose
4 Tetrose
5 Pentose
6 Hexose
7 Heptose
Mono-sakarida
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Terdapat dalam 2 bentuk Aldosa dan Ketosa
Di alam biasa terdapat dlm konformasi D
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Monosakarida yang paling umum adalah heksosa
Glukosa Galaktosa Manosa
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Proyeksi Haworth menunjukkan bentuk cincin dari gula dengan perbedaan pada posisi OH di C1 anomerik : α (OH di bawah struktur cincin) β (OH di atas struktur cincin).
O
H
HO
H
HO
H
OHOHH
H
OH
O
H
HO
H
HO
H
HOHH
OH
OH
-D-glukopiranosa -D-glukopiranosa
1
6
5
4
3 2
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Oligosakarida
Oligosakarida yg paling sederhana Disakarida
Dari kondensasi 2 molekul monosakaridasukrosa glukosa + fruktosalaktosa glukosa + galaktosamaltosa glukosa + glukosatrehalosa glukosa + glukosa
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Polisakarida
• amilum
• glikogen
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• dekstrin
• selulosa
• heparin
• pektin
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Protein
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Sumber
Apa fungsi protein ?
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Struktur Protein
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Asam Amino
• Asam amino standar
• Asam amino non standar
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Asam amino non standar
modifikasi serin modifikasi prolin
Selain itu....
Asam amino esensial
Asam amino non esensial
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Klasifikasi asam amino
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Protein dalam pertumbuhan sel
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LIPID
Klasifikasi :
•Berdasar struktur
•Berdasar fungsi
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3 golongan utama lipid
Lipid sederhana : lemak, minyak, waxLipid majemuk : lipoprotein, steroid, fosfolipidTurunan : asam lemak, gliserol
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• Asam lemak : jenuh dan tidak jenuh
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• Wax
• Fosfolipid
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•Lipoprotein• Steroid
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Air
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Mineral
Vitamin
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