Qhov txawv ntawm limonene thiab D limonene yog limonene yog cyclic monoterpene whereas D limonene yog D isomer ntawm limonene.
Limonene yog ib qho organic compound. Nws qhia stereoisomerism. Qhov no txhais tau tias muaj ob isomers ntawm limonene li L isomer thiab D isomer. Ntawm ob lub isomers no, D limonene yog cov isomer tshaj plaws thiab ntau tshaj.
Limonene yog dab tsi?
Limonene yog cyclic monoterpene muaj cov tshuaj formula C10H16. Nws tshwm sim raws li cov kua tsis muaj xim uas tuaj yeem categorized li aliphatic hydrocarbon. Cov tshuaj no yog cov khoom tseem ceeb hauv cov roj ntawm citrus txiv hmab txiv ntoo peels. Cov tshuaj no qhia stereoisomerism; muaj ob isomers li D limonene thiab L limonene. Ntawm ob lub isomers no, D limonene yog cov isomer feem ntau tshwm sim hauv qhov xwm txheej. Qhov no D isomer tuaj yeem pom nyob rau hauv txiv kab ntxwv raws li cov tshuaj tsw qab, yog li nws yog ib qho tseem ceeb ua tus neeg sawv cev hauv kev tsim khoom noj. Ntxiv mus, qhov sib xyaw no muaj txiaj ntsig zoo hauv cov tshuaj sib xyaw ua ke raws li tus neeg ua ntej.
YD isomer yog cov isomer ntau ntawm limonene. L isomer tsawg dua thiab peb tuaj yeem pom nws hauv cov roj mint. L limonene muaj cov ntxhiab tsw zoo li turpentine. Nws yog ib qho tsis hloov pauv monoterpene uas peb tuaj yeem pom hauv cov resins ntawm conifers.
Daim duab 01: Cov qauv tshuaj ntawm Limonene
Lub npe limonene los ntawm lo lus "txiv qaub". Limonene yog ib qho chiral compound. Lub hauv paus kev lag luam ntawm limonene yog citrus txiv hmab txiv ntoo uas muaj D limonene. Nws yog R isomer ntawm racemic sib tov ntawm limonene. Cov sib tov sib xyaw ntawm limonene yog hu ua dipentene. Muaj ob txoj hauv kev kom tau D limonene: centrifugal sib cais thiab chav distillation.
Thaum xav txog cov khoom ntawm limonene, nws yog qhov ruaj khov thiab peb tuaj yeem distil nws yam tsis muaj kev puas tsuaj. Txawm li cas los xij, limonene yooj yim tawg ntawm qhov kub thiab txias, tsim isoprene. Ntxiv mus, limonene yooj yim oxidizes nyob rau hauv cov huab cua moist ua carveol, carvone thiab limonene oxide. Nyob rau hauv lub xub ntiag ntawm leej faj, limonene raug dehydrogenation thiab tsim p-cymene.
D Limonene yog dab tsi?
D limonene yog D isomer ntawm limonene molecule. Nws yog feem ntau thiab ruaj khov isomer ntawm limonene. Qhov loj ntawm D limonene yog citrus txiv hmab txiv ntoo. Nws yog ib qho tseem ceeb thiab tseem ceeb ntawm cov ntxhiab tsw thiab cov resins uas yog cov yam ntxwv ntawm ntau cov ntoo coniferous thiab broadleaved ntoo.
D limonene tuaj yeem muab rho tawm los ntawm cov txiv hmab txiv ntoo citrus industrially ntawm kev sib cais centrifugal thiab chav distillation. D limonene tshwm sim raws li cov kua tsis muaj xim lossis daj daj uas muaj cov ntxhiab ntawm txiv kab ntxwv. Yog li ntawd, nws yog ib qho additive nyob rau hauv cov zaub mov kev lag luam raws li ib tug flavoring neeg sawv cev. Nws tseem yog ib qho tseem ceeb raws li kev noj haus ntxiv thiab ua cov tshuaj tsw qab hauv kev tsim khoom kom zoo nkauj. Tsis tas li ntawd, cov tshuaj no tseem ceeb hauv kev lag luam khoom noj thiab hauv kev tsim khoom ntawm qee cov tshuaj. D limonene muaj txiaj ntsig zoo li tshuaj tua kab botanical ib yam nkaus.
Qhov txawv ntawm Limonene thiab D Limonene yog dab tsi?
Limonene yog ib qho cyclic monoterpene compound. Nws qhia stereoisomerism; muaj ob isomers ntawm limonene li D isomer thiab L isomer. Qhov sib txawv tseem ceeb ntawm limonene thiab D limonene yog limonene yog cyclic monoterpene whereas D limonene yog D isomer ntawm limonene.
Hauv qab infographic teev ntau qhov sib txawv ntawm limonene thiab D limonene.
Summary – Limonene vs D Limonene
Limonene yog ib qho cyclic monoterpene compound. Nws qhia stereoisomerism; muaj ob isomers ntawm limonene li D isomer thiab L isomer. Qhov sib txawv tseem ceeb ntawm limonene thiab D limonene yog limonene yog cyclic monoterpene whereas D limonene yog D isomer ntawm limonene.
