YTriglycerides vs Phospholipids
Lipids yog carbon-muaj cov organic tebchaw thiab suav tias yog macronutrient hauv cov zaub mov. Cov tshuaj no tsis yaj hauv dej (hydrophobic), tab sis yaj hauv cov rog (lipophilic). Yog li, lipids tau zom, thauj thiab nqus tau zoo sib txawv thaum piv rau lwm cov macronutrients xws li carbohydrates thiab cov protein. Tsis tas li ntawd, lipids yields calorie ntau ntau, piv rau lwm lub zog. Feem ntau lipids tau txais los ntawm cov tsiaj txhu thiab cov zaub mov cog. Tsis tas li ntawd, cov khoom uas tsis yog-lipid molecules xws li carbohydrates thiab cov proteins kuj tuaj yeem hloov mus rau lipids hauv lub cev. Cov lipids hloov pauv no feem ntau khaws cia hauv cov ntaub so ntswg adipose rau tom qab siv los ua lub zog. Raws li cov qauv molecular, lipids tuaj yeem muab faib ua peb hom; triglycerides, phospholipids, thiab sterols. Txhua hom plays lub luag haujlwm sib txawv hauv lub cev. Triglycerides thiab phospholipids ua rau feem ntau thaum sterols muaj nyob rau hauv cov khoom me me hauv lub cev.
YTriglycerides yog dab tsi?
Triglycerides yog cov rog yooj yim thiab ua rau feem ntau ntawm lipids pom hauv lub cev thiab hauv cov zaub mov. Feem ntau, 98% ntawm cov khoom noj muaj roj yog triglycerides; yog li lawv muab ntau qhov tsw thiab kev ntxhib los mos hauv cov khoom noj. Lawv raug suav hais tias yog lub zog tshwj xeeb thiab khaws cia hauv cov hlwb adipocyte nyob rau hauv cov ntaub so ntswg adipose.
Triglyceride molecule yog tsim los ntawm glycerol; uas ua rau 'glycerol qaum', thiab peb fatty acids. Lub 'glycerol caj qaum' ntawm triglyceride molecule yog ib txwm nyob tas mus li, tab sis cov roj ntsha uas txuas rau 'cov pob txha' yuav txawv. Thaum lub sij hawm zom cov triglycerides, fatty acids yog cleaved los ntawm glycerol qaum, ua rau cov fatty acids dawb, uas yog ces muaj nyob rau hauv lub cev siv. Thaum peb cov fatty acids tau sib cais, qhov seem glycerol qaum yog muaj rau kev tsim lub zog.
Lub luag haujlwm tseem ceeb ntawm triglycerides yog ua lub zog thiab ntau lub zog cia, muab kev tiv thaiv rau lub cev tseem ceeb, thiab ua lub thermal thiab hluav taws xob insulator hauv lub cev.
Phospholipids yog dab tsi?
Tsis zoo li cov triglycerides, phospholipids muaj nyob hauv cov khoom noj tshwj xeeb xws li qe qe, daim siab, taum pauv, thiab txiv laum huab xeeb. Phospholipids tsis yog qhov tseem ceeb ntawm kev noj haus vim tias lub cev tuaj yeem ua rau lawv thaum xav tau. Lawv muaj tib lub glycerol qaum li triglycerides tab sis tsuas muaj ob fatty acids es tsis yog peb. Li no qhov chaw tsis muaj nyob rau ntawm glycerol yog txuas nrog ib pab pawg phosphate, uas ua rau hydrophilic, polar taub hau. Cov qauv tshwj xeeb no tso cai rau phospholipids yaj hauv dej thiab rog. Ntawm no, cov tsis-polar hydrophobic tail (fatty acids) tuaj yeem txuas cov roj-soluble tshuaj thaum lub taub hau polar hydrophilic tuaj yeem txuas cov dej-soluble tshuaj los yog polar molecules. Phospholipids yog ib qho tseem ceeb ntawm cov cell membrane. Tsis tas li ntawd, lawv ua raws li emulsifier (bile), thiab tseem muab kev thauj mus los hauv lub cev (raws li lipid particle carriers).
Qhov txawv ntawm Triglycerides thiab Phospholipids yog dab tsi?
• Triglycerides muaj ntau dua li phospholipids.
• Triglycerides tsuas yog soluble hauv roj xwb, hos phospholipids soluble hauv dej thiab rog.
• Triglyceride molecule muaj peb fatty acid chains, whereas phospholipid molecule muaj ob fatty acids ntxiv rau ib pawg phosphate.
Nyeem ntxiv:
1. Qhov txawv ntawm Cholesterol thiab Triglycerides
2. Qhov txawv ntawm Trans Fat thiab Saturated Fat
