hoa hoc lipid

Bµi gi¶ng Ho¸ häc lipid TS. Phan H¶i Nam

Ho¸ häc Lipid ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

I. Acid bÐo * Kh¸i niÖm : AB lµ mono carboxylic (acid cã 1 -COOH) C«ng thøc chung: R-COOH   * Qui íc: R-CH 2 -CH 2 -COOH * AB tù nhiªn: + AB b·o hoµ (no): A.palmitic- 16C. Stearic- 18C. + AB cha b·o hoµ (ko no): 1- 5 liªn kÕt ®«i - 1 LK ®«i: a Palmitoleic – 16 : 1(9), Oleic- 18: 1 (9) - 2 lk ®«i: A.Linoleic- 18 : 2(9,12) –VD… - 3 lk ®«i: A. Linolenic – 18 : 3(9, 12, 15). - 4 lk ®«i: A. Arachidonic – 20 : 4(5, 8, 11, 14). - 5 lk ®«i: A.Clupandoic – 22 : 5(4, 7, 10, 13, 16). VD : CH 3 - (CH 2 ) 4 – CH = CH – CH 2 - CH=CH –(CH2) 7 - COOH

* Acid bÐo cÇn thiÕt vµ kh«ng cÇn thiÕt ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mét sè tÝnh chÊt cña acid bÐo (TK/SGK) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Lipid thuÇn ,[object Object],[object Object],[object Object],[object Object],CH 2 OH HOCH CH 2 OH R R R R 2 R 1 R 3 Chñ yÕu/TN + TÝnh chÊt : - AB quyÕt ®Þnh TC lý ho¸ TG: t o nãng ch¶y  cïng SL C, ®é dµi gèc AB, ngîc l¹i AB cha BH, nhiÒu LK = -> to NC thÊp . . - H×nh d¹ng TG  lo¹i AB: AB no -> TG/ r¾n (mì §V) AB ko no, nhiÒu LK = -> láng (DTV) - Thuû ph©n TG: = acid, kiÒm (XP), E-Lipase tôy -> Glycerol + 3AB TG thuÇn TG t¹p ,[object Object]

Lipid thuÇn ,[object Object],Vai trß :- Tham gia tæng hîp hormon steroid ë VTT, tuyÕn SD - Nguyªn liÖu tæng hîp acid mËt, MM -> TH lipid - Nguyªn liÖu tæng hîp tiÒn vitamin D 3, -> Vit D 3 - Tham gia cÊu t¹o mµng tÕ bµo - Lk =/ C 5 , C 6 ,[object Object],[object Object],- 3 vßng 6 c¹nh, 1 vßng 5 - OH/ C 3 -> Choles TD §Æc ®iÓm CT :

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Lipid t¹p

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Glycero phospholipid

C«ng thøc cÊu t¹o cña c¸c Glycero phospholipid

Sphingophospholipid (sphingomyelin) – CS.TK ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

hoa hoc lipid

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hoa hoc lipid