• Dab tsi yogCaffeic Acid ?
Caffeic acid yog ib qho phenolic compound nrog cov tshuaj tiv thaiv antioxidant thiab tiv thaiv kab mob, pom nyob rau hauv ntau yam khoom noj thiab nroj tsuag. Nws cov txiaj ntsig kev noj qab haus huv muaj peev xwm thiab kev siv hauv cov khoom noj, tshuaj pleev ib ce, thiab cov tshuaj ntxiv ua rau nws yog ib qho tseem ceeb hauv kev noj haus thiab kev tshawb fawb txog kev noj qab haus huv.
Caffeic acid tuaj yeem tsim los ntawm cov nroj tsuag lossis tshuaj lom neeg. Hauv qab no yog ob txoj hauv kev los tsim caffeic acid:
Extraction los ntawm natural sources:
Caffeic acid muaj nyob rau hauv ntau yam nroj tsuag, xws li kas fes, txiv apples, thiab artichokes. Txoj hauv kev zoo tshaj plaws kom tau txais caffeic acid yog rho tawm los ntawm cov peev txheej ntuj no. Cov txheej txheem rho tawm yog siv cov kuab tshuaj xws li methanol lossis ethanol los cais cov caffeic acid los ntawm cov nroj tsuag. Tom qab ntawd cov extract yog purified kom tau txais caffeic acid.
Chemical synthesis:
Caffeic acid kuj tseem tuaj yeem raug tshuaj lom neeg los ntawm phenol lossis hloov phenols. Lub synthesis muaj reacting phenol los yog hloov phenols nrog carbon monoxide thiab ib tug palladium catalyst los tsim ib tug hydroxypropyl ketone nruab nrab, uas yog ntxiv reacted nrog ib tug tooj liab catalyst los tsim caffeic acid.
Txoj kev siv tshuaj lom neeg no tuaj yeem tsim cov caffeic acid hauv ntau qhov ntau thiab tuaj yeem ua kom zoo kom nce cov txiaj ntsig thiab purity ntawm cov khoom. Txawm li cas los xij, txoj kev rho tawm los ntawm cov peev txheej ntuj yog ntau tus phooj ywg ib puag ncig thiab tsim cov khoom lag luam ntau dua.
• Lub cev thiab tshuaj lom neeg ntawmCaffeic Acid
1. Lub cev muaj zog
Molecular Formula:C₉H₈O₄
Molecular Luj:Kwv yees li 180.16 g / mol
Qhov tsos:Caffeic acid feem ntau tshwm li yellowish mus rau xim av crystalline hmoov.
Solubility:Nws yog soluble hauv dej, ethanol, thiab methanol, tab sis tsawg soluble nyob rau hauv non-polar solvents xws li hexane.
Melting Point:Lub melting point ntawm caffeic acid yog nyob ib ncig ntawm 100-105 ° C (212-221 ° F).
2. Cov khoom siv tshuaj
Acidity:Caffeic acid yog cov kua qaub tsis muaj zog, nrog tus nqi pKa ntawm kwv yees li 4.5, qhia tias nws tuaj yeem pub cov protons hauv kev daws.
Reactivity:Nws tuaj yeem raug ntau yam tshuaj tiv thaiv, suav nrog:
Oxidation:Caffeic acid tuaj yeem oxidized los tsim lwm cov tshuaj, xws li quinones.
Esterification:Nws tuaj yeem cuam tshuam nrog cawv los ua esters.
Polymerization:Hauv qee qhov xwm txheej, caffeic acid tuaj yeem ua polymerize los tsim cov phenolic tebchaw loj dua.
3. Spectroscopic Properties
UV-Vis Absorption:Caffeic acid pom muaj zog nqus nyob rau hauv cheeb tsam UV, uas tuaj yeem siv rau nws qhov ntau npaum li cas hauv ntau cov qauv.
Infrared (IR) Spectrum:IR spectrum qhia txog cov yam ntxwv siab tshaj plaws sib xws rau hydroxyl (–OH) thiab carbonyl (C = O) cov pab pawg ua haujlwm.
• Extract qhov chaw ntawmCaffeic Acid
Caffeic acid tuaj yeem muab rho tawm los ntawm ntau qhov chaw ntuj, feem ntau cov nroj tsuag.
Kas fes taum:
Ib qho ntawm cov nplua nuj tshaj plaws ntawm caffeic acid, tshwj xeeb tshaj yog nyob rau hauv roasted kas fes.
Txiv hmab txiv ntoo:
Kua txiv: muaj caffeic acid nyob rau hauv daim tawv nqaij thiab nqaij.
Pears: Lwm cov txiv hmab txiv ntoo uas muaj cov ntsiab lus ntawm caffeic acid.
Berries: xws li blueberries thiab strawberries.
Zaub:
Carrots: muaj caffeic acid, tshwj xeeb tshaj yog nyob rau hauv daim tawv nqaij.
Qos yaj ywm: tshwj xeeb tshaj yog nyob rau hauv daim tawv nqaij thiab peels.
Tshuaj ntsuab thiab txuj lom:
Thyme: Muaj ntau theem ntawm caffeic acid.
Sage: Lwm cov tshuaj ntsuab nplua nuj nyob hauv caffeic acid.
Whole Grains:
Oats: muaj caffeic acid, pab txhawb rau nws cov txiaj ntsig kev noj qab haus huv.
Lwm qhov chaw:
Red Wine: Muaj caffeic acid vim muaj cov phenolic tebchaw hauv cov txiv hmab txiv ntoo.
Zib ntab: Qee hom zib ntab kuj muaj caffeic acid.
• Cov txiaj ntsig yog dab tsiCaffeic Acid ?
1. Antioxidant Properties
◊ Dawb Radical Scavenging:Caffeic acid pab neutralize dawb radicals, uas yuav txo tau oxidative kev nyuaj siab thiab txo cov kev pheej hmoo ntawm cov kab mob.
2. Anti-inflammatory teebmeem
◊ Txo qhov mob:Nws tuaj yeem pab txo qhov mob hauv lub cev, uas cuam tshuam rau ntau yam mob xws li mob caj dab, kab mob plawv, thiab qee yam qog noj ntshav.
3. Muaj peev xwm tiv thaiv mob qog noj ntshav
◊ Inhibition ntawm Cancer Cell Loj hlob:Qee cov kev tshawb fawb qhia tias caffeic acid tuaj yeem cuam tshuam kev loj hlob ntawm cov qog nqaij hlav cancer thiab ua rau apoptosis (programmed cell tuag) hauv qee hom mob qog noj ntshav.
4. Kev txhawb nqa kev noj qab haus huv plawv
◊ Kev tswj cov roj (cholesterol) siab:Caffeic acid tuaj yeem pab txo qis LDL cov roj cholesterol thiab txhim kho lub plawv tag nrho.
◊ Kev tswj ntshav siab:Nws tuaj yeem pab txhawb kev tswj ntshav siab, txhawb kev ua haujlwm ntawm lub plawv zoo dua.
5. Cov nyhuv Neuroprotective
◊ Cognitive Health:Caffeic acid tau kawm txog nws lub peev xwm los tiv thaiv cov kab mob neurodegenerative, xws li Alzheimer's thiab Parkinson's, los ntawm kev txo qis oxidative kev nyuaj siab hauv lub hlwb.
6. Kev noj qab haus huv ntawm daim tawv nqaij
◊ Anti-aging Properties:Vim nws cov tshuaj tiv thaiv antioxidant thiab tiv thaiv kab mob, caffeic acid feem ntau suav nrog hauv cov khoom siv tawv nqaij los pab tiv thaiv daim tawv nqaij los ntawm kev puas tsuaj thiab txhawb kev hluas.
7. Digestive Health
◊ Gut Health:Caffeic acid tuaj yeem txhawb kev noj qab haus huv ntawm plab los ntawm kev txhawb nqa kev loj hlob ntawm cov kab mob plab uas muaj txiaj ntsig zoo thiab txo qhov mob hauv plab hnyuv.
• Dab tsi yog Daim Ntawv Thov NtawmCaffeic Acid ?
Caffeic acid muaj ntau yam kev siv thoob plaws ntau qhov chaw, suav nrog zaub mov, tshuaj, tshuaj pleev ib ce, thiab kev ua liaj ua teb. Nov yog qee qhov kev siv tseem ceeb:
1. Kev lag luam zaub mov
◊ Natural Preservative: Caffeic acid yog siv los ua cov tshuaj tua kab mob ntuj tsim kom ntev lub neej ntawm cov khoom noj los ntawm kev tiv thaiv oxidation.
◊ Flavoring Agent: Nws tuaj yeem txhim kho qhov tsw profile ntawm qee yam khoom noj thiab dej haus, tshwj xeeb hauv kas fes thiab tshuaj yej.
2. Pharmaceuticals
◊ Nutraceuticals: Caffeic acid muaj nyob rau hauv cov khoom noj khoom haus rau nws cov txiaj ntsig kev noj qab haus huv, xws li tshuaj tua kab mob antioxidant thiab tiv thaiv kab mob.
◊ Kev Tshawb Fawb Kev Kho Mob: Nws tab tom kawm txog nws lub luag haujlwm tseem ceeb hauv kev tiv thaiv thiab kho ntau yam kab mob, suav nrog mob qog noj ntshav thiab kab mob neurodegenerative.
3. Tshuaj pleev ib ce thiab tawv nqaij
◊ Anti-aging Products: Vim nws cov khoom antioxidant, caffeic acid feem ntau muab tso rau hauv cov tshuaj pleev ib ce los tiv thaiv daim tawv nqaij los ntawm kev puas tsuaj oxidative thiab txhawb kev hluas.
◊ Anti-inflammatory Formulations: Nws yog siv rau hauv cov khoom siv los txo cov tawv nqaij mob thiab khaus khaus.
4. Kev ua liaj ua teb
◊ Plant Growth Promoter: Caffeic acid tuaj yeem siv los ua tus tswj kev loj hlob ntawm ntuj tsim los txhim kho cov nroj tsuag kev loj hlob thiab tiv thaiv kev ntxhov siab.
◊ Kev Txhim Kho Kab Tsuag: Kev tshawb fawb txuas ntxiv mus rau nws txoj kev siv tshuaj tua kab hauv ntuj vim nws cov khoom siv tshuaj tua kab mob.
5. Kev Tshawb Fawb thiab Kev Txhim Kho
◊ Biochemical Studies: Caffeic acid nquag siv hauv kev tshawb fawb hauv chav kuaj los kawm txog nws cov teebmeem ntawm ntau yam txheej txheem lom neeg thiab nws cov kev siv tshuaj kho mob.
Cov lus nug ntsig txog koj tuaj yeem txaus siab rau:
♦ Cov kev mob tshwm sim yog dab tsicaffeic acid ?
Caffeic acid feem ntau suav hais tias muaj kev nyab xeeb thaum noj cov nyiaj nruab nrab los ntawm cov khoom noj. Txawm li cas los xij, zoo li txhua qhov sib xyaw, nws yuav muaj peev xwm tshwm sim, tshwj xeeb tshaj yog thaum noj cov koob tshuaj ntau lossis ua cov tshuaj ntxiv. Nov yog qee qhov teebmeem tshwm sim:
Teeb meem digestinal:
Qee tus neeg yuav muaj mob plab, xeev siab, lossis raws plab thaum noj caffeic acid ntau.
Kev tsis haum:
Txawm hais tias tsis tshua muaj, qee tus neeg yuav muaj kev fab tshuaj rau caffeic acid lossis cov nroj tsuag uas muaj nws, ua rau muaj cov tsos mob xws li khaus, pob khaus, lossis o.
Kev sib cuam tshuam nrog cov tshuaj:
Caffeic acid tuaj yeem cuam tshuam nrog qee yam tshuaj, tshwj xeeb yog cov uas cuam tshuam rau daim siab enzymes. Qhov no tuaj yeem hloov qhov ua tau zoo ntawm cov tshuaj.
Hormonal teebmeem:
Muaj qee qhov pov thawj tias caffeic acid tuaj yeem cuam tshuam cov qib tshuaj hormones, uas tuaj yeem ua rau muaj kev txhawj xeeb rau cov tib neeg uas muaj cov tshuaj hormones.
Oxidative Stress:
Thaum caffeic acid yog ib qho antioxidant, kev noj ntau dhau yuav ua rau muaj kev ntxhov siab oxidative hauv qee kis, tshwj xeeb tshaj yog tias nws cuam tshuam qhov sib npaug ntawm lwm cov antioxidants hauv lub cev.
♦ Ibcaffeic acidtib yam li caffeine?
Caffeic acid thiab caffeine tsis zoo ib yam; lawv yog cov sib txuas sib txawv nrog cov qauv tshuaj sib txawv, cov khoom, thiab kev ua haujlwm.
TSEEM CEEB:
1.Chemical Structure:
Caffeic Acid:Ib qho phenolic compound nrog cov tshuaj formula C9H8O4. Nws yog hydroxycinnamic acid.
Caffeine:Ib qho stimulant uas muaj nyob rau hauv chav kawm xanthine, nrog rau cov tshuaj formula C8H10N4O2. Nws yog methylxanthine.
2.Qhov chaw:
Caffeic Acid:Pom muaj nyob rau hauv ntau yam nroj tsuag, txiv hmab txiv ntoo, thiab zaub, tshwj xeeb tshaj yog nyob rau hauv kas fes, txiv hmab txiv ntoo, thiab tej yam tshuaj ntsuab.
Caffeine:Feem ntau pom muaj nyob rau hauv kas fes taum, tshuaj yej nplooj, taum cacao, thiab qee cov dej qab zib.
3.Biological Effects:
Caffeic Acid:Paub txog nws cov tshuaj tua kab mob antioxidant, tiv thaiv kab mob, thiab cov txiaj ntsig kev noj qab haus huv, suav nrog kev txhawb nqa kev noj qab haus huv thiab kev noj qab haus huv ntawm daim tawv nqaij.
Caffeine:Lub hauv paus paj hlwb stimulant uas tuaj yeem ua rau muaj kev ceeb toom, txo qis qaug zog, thiab txhim kho kev xav.
4.Siv:
Caffeic Acid:Siv nyob rau hauv cov zaub mov raws li ib tug preservative, nyob rau hauv cov tshuaj pleev ib ce rau cov tawv nqaij noj qab haus huv, thiab nyob rau hauv kev tshawb fawb rau nws cov peev xwm kho mob.
Caffeine:Feem ntau siv rau hauv cov dej haus rau nws cov teebmeem stimulating thiab kuj yog siv nyob rau hauv ib co tshuaj rau mob nyem thiab ceeb toom.
Post lub sij hawm: Oct-09-2024
