Qhov sib txawv tseem ceeb ntawm oleic acid thiab elaidic acid yog oleic acid tshwm sim nyob rau hauv cov kua theem, whereas elaidic acid tshwm sim nyob rau hauv cov khoom.
Oleic acid thiab elaidic acid yog cov organic tebchaw. Cov no yog cov acidic tebchaw uas muaj carboxylic acid pawg ntawm qhov kawg ntawm cov saw hlau. Ob qho no yog unsaturated fatty acids vim lawv muaj ob daim ntawv cog lus ntawm nruab nrab ntawm cov saw hlau. Oleic acid thiab elaidic acid yog cis-trans isomers ntawm ib leeg.
YOleic Acid yog dab tsi?
Oleic acid yog cis isomer ntawm fatty acid, muaj cov tshuaj formula C18H34O2 Nws yog cis isomer ntawm elaidic acid. Cov khoom no tshwm sim raws li cov kua roj oily uas tsis muaj xim thiab tsis muaj ntxhiab tsw. Txawm li cas los xij, kev lag luam muaj cov qauv ntawm oleic acid tuaj yeem ua daj. Peb tuaj yeem faib cov oleic acid ua monounsaturated omega-9 fatty acid. Cov molar loj ntawm cov tshuaj no yog 282.046 g / mol. Nws muaj qhov qis melting point (13 Celsius) thiab qhov sib piv ntawm qhov kub kub (360 Celsius). Cov khoom no yog insoluble nyob rau hauv dej, thiab nws yog soluble nyob rau hauv organic solvents xws li ethanol.
Lub npe ntawm cov tshuaj no los ntawm lo lus Latin "oleum", uas txhais tau tias roj lossis oily. Oleic acid yog qhov feem ntau tshwm sim ntawm fatty acid. Muaj ntsev thiab esters ntawm oleic acid npe hu ua oleates. Feem ntau, peb tuaj yeem pom oleic acid hauv nws daim ntawv ester es tsis yog hauv cov kab mob lom. Cov tshuaj no feem ntau tshwm sim hauv daim ntawv ntawm triglyceride. Cov tebchaw uas muaj oleic acid muaj xws li phospholipids hauv cell membranes, cholesterol esters, wax esters, thiab lwm yam.
Oleic acid cov ntaub ntawv los ntawm biosynthesis, uas koom nrog cov haujlwm enzymatic ntawm stearoyl-CoA9-desaturase ua rau stearoyl-CoA. Ntawm no, stearic acid yog dehydrogenated los ua monounsaturated derivative, oleic acid.
YElaidic Acid yog dab tsi?
Elaidic acid yog trans isomer ntawm fatty acid uas muaj cov tshuaj formula C18H34O2Nws yog trans isomer ntawm oleic acid. Nws yog monounsaturated fatty acid uas muaj pawg carboxylic acid. Nws tshwm sim raws li ib tug colourless, odorless oily khoom. Lub melting point ntawm cov compound no kuj siab heev (kwv yees li 45 Celsius).
Elaidic acid feem ntau paub vim tias nws yog cov roj trans loj uas peb tuaj yeem pom hauv cov roj zaub hydrogenated, yog li cov no yog cov roj trans rog uas ua lub luag haujlwm tseem ceeb hauv kev tsim kab mob plawv. Cov ntsev thiab esters ntawm elaidic acid yog sau npe ua elaidates.
Peb tuaj yeem pom elaidic acid nyob rau hauv kab hauv cov kua mis caprine thiab bovine. Nws kuj tshwm sim hauv qee cov nqaij. Tsis tas li ntawd, nws yog ib qho tseem ceeb hauv cov txiv hmab txiv ntoo Durian. Elaidic acid tau paub tias yuav pab tau rau hauv kev ua kom cov plasma cholesterylester hloov cov protein ua haujlwm. Qhov sib xyaw no tseem ceeb hauv kev txo qis HDL cholesterol.
Qhov txawv ntawm Oleic Acid thiab Elaidic Acid yog dab tsi?
Oleic acid thiab elaidic acid yog cis-trans isomers ntawm ib leeg. Qhov sib txawv tseem ceeb ntawm oleic acid thiab elaidic acid yog oleic acid tshwm sim nyob rau hauv cov kua theem, whereas elaidic acid tshwm sim nyob rau hauv cov khoom.
Ntxiv mus, oleic acid yog cis isomer ntawm elaidic acid. Cov ntsev thiab esters ntawm oleic acid yog hu ua oleates thaum cov ntsev thiab esters ntawm elaidic acid yog lub npe hu ua elaidates.
Hauv qab infographic qhia txog qhov sib txawv ntawm oleic acid thiab elaidic acid.
Summary – Oleic Acid vs Elaidic Acid
Oleic acid thiab elaidic acid yog cov organic tebchaw. Cov no yog cov acidic tebchaw uas muaj carboxylic acid pawg ntawm qhov kawg ntawm cov saw hlau. Oleic acid thiab elaidic acid yog cis-trans isomers ntawm ib leeg. Qhov sib txawv tseem ceeb ntawm oleic acid thiab elaidic acid yog oleic acid tshwm sim nyob rau hauv cov kua theem, whereas elaidic acid tshwm sim nyob rau hauv cov khoom.
