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Diterbitkan olehAldhy Rizqullah Telah diubah "9 tahun yang lalu
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Peranan lemak dan minyak terhadap kesehatan: biota laut.
Materi 5 Peranan lemak dan minyak terhadap kesehatan: biota laut. Fransiska Rungkat Zakaria
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Omega 6 Omega 3
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Body needs both omega 3 and 6
Linoleic linolenic
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Jenis Asam Lemak Minyak Kelapa Minyak Inti Sawit (%)a Sawit (%)b (%)b Asam Kaprat 4,9 – 9,5 Asam Kaprilat 5,5 – 9,5 - 3 – 4 Asam Kaproat 0,0 – 0,8 3 – 7 Asam Laurat 44,0 – 52,0 46 – 52 Asam Miristat 13,0 – 19,0 1,1 – 2,5 14 – 17 Asam Palmitat 7,5 – 10,5 40 – 46 6,5 – 9 Asam Palmitoleat 0,0 – 13,1 Asam Stearat 1,0 – 3,0 3,6 – 4,7 1 – 2,5 Asam Oleat 5,0 – 8,0 39 – 45 13 – 19 Asam Linoleat 1,5 – 2,5 7 – 11 0,5 - 2 Asam Arakhidonat 0,0 –0,4
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Review: lipid function
Concept: essential fatty acid = essential food lipid there are natural metabolism based on human evolution Any disturbances (or over capacity) in the metabolism can cause diseases food lipid: improve metabolism (functional food)
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Fat for energy too much food fat will be accumulated as body fat
(no good) Func fd Should improve Body Fat utilization
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Lemak tubuh/cadangan Sebagai sumber Energi: Dr adiposit Darah Hati/otot 1. b-oxydation Lalu acetyl CoA/citric acid cycle: Energi/glukosa/asam amino/ 2. Sintesis komponen lain Steroid, kolesterol,glikoprotein,
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Protein in lipid transport
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Cholesterol Transportation Food incresing HDL reduce body Cholesterol, But not too much Cholesterol is important
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LDL receptor protein is important in cholestrl Clearing. It can be protected by sufficient food antioxidants
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FA-CoA memasuki matrix mitokondria dgn bantuan carnitine dan enzimnya
Lalu mengalami b-oxydation: producing ATP
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Body can make its own carnitine
It is better to supply sufficient Food protein as the raw material
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Hibernasi: oksidasi lemak tubuh selama tidur berbulan-bulan (musim dingin)
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Oksidasi bentuk Cis bukan trans: Kesalahan metabolism Asam Lemak trans
Oxydasi pada ikatan rangkap Memerlukan Enzim ……. Oksidasi bentuk Cis bukan trans: Kesalahan metabolism Asam Lemak trans
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Too much body fat oxidation Produce ketone Bodies which Reduce body alkalinity
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It is important to provide
Essential fatty acid from food To synthesize lipid membrane
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All Cell membrane needs unsaturated lipid. Including cholesterol
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Fungsi struktural lipid
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Food must provide vitamins for optimal lipid metabolism
(utilizations)
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Research on functional food to improve enzyme
Activities in fal metabolism and utilizations
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One of the many proteins in fat utilization needs vitamins
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Body fat accumulation from Carbohydrate Over eating
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Food influencing this Hormons Influence body fat metabolism
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Our body needs Only linoleate And linolenate To produce all Kinds of fatty acids It needs For cell membrane
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All kinds of necessary Membrane lipid can then Be synthesize
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Membrane Lipid can be Destroyed, resulting bioactive Chemicals that can produce Inflamation, imune response Functional foods controlling These reactions, control Inflamation, vascular Endothelium cells
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Diiferent enzyme produce different bioactive chemicals,
Influence inflamation. This is non inflamation products
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Example of a compound controlling inflamation
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Functional foods help body making perfect cell membrane
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Choline: important compound
Of membrane lipid, can be synthesized with Serine and methionine
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Our body can produce palmitic acid. When needed. Take fat food containing Palmitic acid To produce nerve cell membrane
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Important lipid in nerve and
Brain cells
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Body makes cholesterol from acetyl
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Squalene is a step in body
cholesterol synthesis (long steps)
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Important enzyme in cholesterol synthesis Functional foods can control this step
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ACAT is important in cholestrl
Storage and distribution Functional foods controlling this enzyme Control body cholstr
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Lipid transportations
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Foods Influencing These Lipoproteins Influence.. …………..
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Lecithin is important Food containing lecithin…..
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LDL cholesterol in cell
Can be reduced by foods Containing compounds ……………
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Cholesterol is a precursor
For many hormones Body needs sufficient Cholesterol but not over
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Thank You!
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