Qhov sib txawv tseem ceeb ntawm myristic thiab stearic acid yog tias myristic acid tuaj yeem nce qib LDL roj cholesterol, qhov stearic acid tuaj yeem txo qis LDL cov roj cholesterol.
LDL cholesterol yog "phem" cov roj cholesterol uas tuaj yeem nkag mus rau hauv cov phab ntsa ntawm cov hlab ntsha. Nws tuaj yeem ua rau muaj ntau yam kev txhawj xeeb txog kev noj qab haus huv. Myristic acid thiab stearic acid yog ob txoj hlua ntev saturated fatty acids uas tuaj yeem cuam tshuam rau qib LDL hauv lub cev.
Myristic Acid yog dab tsi?
Myristic acid yog ib hom saturated fatty acid uas muaj cov tshuaj formula CH3(CH2)12COOH. Cov ntsev thiab esters ntawm cov kua qaub no feem ntau hu ua myristates lossis tetradecanoates. Lub npe myristate acid tau muab los ntawm lub npe binomial rau nutmeg (Myristica fragrans) hauv xyoo 1841.
Daim duab 01: Cov Qauv Tshuaj ntawm Myristic Acid
Cov molar loj ntawm cov tshuaj no yog 228.37 g / mol. Nws zoo nkaus li cov kua dawb lossis xim tsis muaj xim. Qhov ceev ntawm myristic acid tuaj yeem muab tau li 1.03 g / cm 3ntawm qhov kub qis. Lub melting point ntawm no compound yog 54.4 degrees Celsius, thiab lub boiling point yuav muab li 326.2 degrees Celsius. Nws muaj cov dej tsis zoo hauv dej, tab sis nws yog soluble hauv cawv, acetate, benzene, haloalkanes, thiab phenyls. Nws cov qauv siv lead ua yog monoclinic.
Thaum xav txog kev siv cov tshuaj no, nws feem ntau tau ntxiv rau N-terminus glycerin hauv receptor-associated kinases kom xa cov membrane localization ntawm cov enzyme. Nws muaj qhov txaus hydrophobicity txaus los ua rau hauv cov roj acyl core ntawm phospholipid bilayer ntawm plasm membrane ntawm eukaryotic cell.
Stearic Acid yog dab tsi?
Stearic acid yog cov roj saturated fatty acid uas muaj cov tshuaj formula C17H35CO2 H. Nws muaj cov saw hlau nrog 18 carbon atoms. Lub npe IUPAC ntawm cov tshuaj no yog octadecanoic acid. Cov kua qaub no zoo li cov khoom siv dawb. Cov ntsev thiab lwm yam derivatives ntawm stearic acid yog hu ua stearates. Cov kua qaub no muaj cov ntxhiab tsw ntxhiab tsw.
Peb tuaj yeem tau txais stearic acid los ntawm saponification ntawm cov rog thiab roj. Cov triglycerides nyob rau hauv cov rog thiab roj tau saponification nyob rau hauv lub xub ntiag ntawm dej kub. Lub resulting compound sib tov yuav tsum tau distilled kom tau ntshiab acid. Txawm li cas los xij, cov khoom lag luam muaj stearic acid yog qhov sib xyaw ntawm stearic acid thiab palmitic acid.
Daim duab 02: Crystallized Stearic Acid
Thaum xav txog kev siv cov tshuaj stearic acid, nws yog ib qho tseem ceeb raws li ib tug surfactant thiab ua ib tug softening neeg sawv cev vim muaj ib tug polar taub hau pab pawg neeg uas tau mus txuas rau hlau cations. Nws kuj muaj cov saw hlau uas tsis muaj polar, uas ua rau nws muaj peev xwm yaj hauv cov kuab tshuaj organic.
Qhov txawv ntawm Myristic thiab Stearic Acid yog dab tsi?
Ob qho tib si myristic acid thiab stearic acid yog cov saw ntev ntev saturated fatty acids. Myristic acid yog ib hom saturated fatty acid uas muaj cov tshuaj formula CH3(CH2)12COOH. Stearic acid yog saturated fatty acid uas muaj cov tshuaj formula C17H35CO2H. Qhov sib txawv tseem ceeb ntawm myristic thiab stearic acid yog tias myristic acid tuaj yeem nce LDL roj cholesterol, thaum stearic acid tuaj yeem txo LDL cholesterol. Ob leeg no muaj ntau yam siv hauv kev lag luam sib txawv.
Cov hauv qab no qhia txog qhov sib txawv ntawm myristic thiab stearic acid hauv daim ntawv tabular rau kev sib piv ntawm ib sab.
Summary – Myristic vs Stearic Acid
Myristic acid yog ib hom saturated fatty acid uas muaj cov tshuaj formula CH3(CH2)12 COOH. Stearic acid yog saturated fatty acid uas muaj cov tshuaj formula C17H35CO2H. Qhov sib txawv tseem ceeb ntawm myristic thiab stearic acid yog tias myristic acid nce qib LDL roj cholesterol, thaum stearic acid txo qis LDL cholesterol.
