Qhov sib txawv tseem ceeb ntawm xanthophyll thiab carotene yog xanthophyll yog chav kawm ntawm carotenoid pigments uas muaj oxygen atoms nyob rau hauv daim ntawv ntawm hydroxyl lossis epoxide, thaum carotene yog chav kawm ntawm carotenoid pigments uas yog hydrocarbon thiab tsis muaj oxygen atoms..
Carotenoids yog cov xim cog uas muab cov xim liab, daj, thiab txiv kab ntxwv rau ntau cov txiv hmab txiv ntoo thiab zaub. Cov pigments no ua haujlwm tseem ceeb hauv kev noj qab haus huv ntawm cov nroj tsuag. Cov neeg uas haus cov zaub mov uas muaj carotenoids tau txais kev tiv thaiv kev noj qab haus huv ib yam nkaus. Muaj ntau tshaj 600 hom carotenoids. Cov carotenoids tau muab faib ua ob pawg: xanthophyll thiab carotene.
Xanthophyll yog dab tsi?
Xanthophyll yog ib qho ntawm ob chav loj ntawm carotenoid pigments. Tsis zoo li carotene, xanthophyll muaj oxygen atom nyob rau hauv daim ntawv ntawm hydroxyl lossis epoxide. Xanthophylls yog cov xim daj daj uas tshwm sim hauv qhov xwm txheej. Cov pigments no tau txais lub npe no vim lawv tsim cov kab daj nyob rau hauv chromatography ntawm nplooj pigments. Lub xub ntiag ntawm oxygen atoms hauv xanthophylls ua rau lawv ntau dua polar tshaj carotene. Qhov polarity no ua rau lawv sib cais los ntawm carotene hauv ntau hom chromatography.
Daim duab 01: Xanthophyll
Xanthophylls pom muaj ntau dua hauv cov nplooj ntawm cov nroj tsuag ntsuab feem ntau. Nyob rau hauv cov nroj tsuag ntsuab no, lawv pab hloov lub teeb lub zog thiab ua ib tug tsis yog-photochemical quenching tus neeg saib xyuas nrog triplet chlorophyll. Lawv kuj muaj nyob rau hauv cov tsiaj lub cev. Cov pigments hauv chav kawm no suav nrog lutein, zeaxanthin, neoxanthin, violaxanthin, flavoxanthin, thiab α- thiab β- cryptoxanthin. Tsis tas li ntawd, cov khoom noj uas muaj xanthophylls muaj xws li papaya, txiv duaj, prunes, squash, kale, spinach, parsley, thiab pistachios.
YCarotene yog dab tsi?
Carotene yog chav kawm ntawm carotenoid pigments uas yog hydrocarbons. Tsis zoo li xanthophyll, carotene tsis muaj oxygen atoms. Raws li txoj cai, carotene yog unsaturated hydrocarbon tshuaj nrog molecular mis ntawm C40Hx. Carotene yog cov xim cog qoob loo. Feem ntau, lawv tsis tuaj yeem tsim los ntawm cov tsiaj. Txawm li cas los xij, qhov tshwj xeeb yog qee qhov aphids thiab kab laug sab mites tau txais cov carotene synthesizing noob los ntawm fungi.
Daim duab 02: Carotene
Carotenes pab cov nroj tsuag hauv photosynthesis los ntawm kev xa lub teeb lub zog lawv nqus mus rau chlorophyll molecules. Ntxiv mus, carotene nqus ultraviolet, violet, thiab xiav lub teeb. Lawv kuj tuaj yeem tawg cov txiv kab ntxwv lossis lub teeb liab thiab lub teeb daj. Tsis tas li ntawd, lawv kuj tiv thaiv cov ntaub so ntswg. Lub β-carotene yog tawg mus rau retinol, uas yog ib daim ntawv ntawm vitamin A nyob rau hauv lub mucosa ntawm tib neeg cov hnyuv. β-carotene khaws cia hauv tib neeg lub siab thiab lub cev rog. Tsis tas li ntawd, carotene kuj tseem siv los ua zaub mov ntxiv rau cov khoom siv xim xws li kua txiv hmab txiv ntoo, khoom qab zib, khoom qab zib, butter, thiab margarine. Qhov chaw ntawm carotene muaj xws li carrots, wolfberries, cantaloupe, mangoes, liab tswb ntawv, papaya, spinach, kale, qos yaj ywm qab zib, txiv lws suav, dandelion ntsuab, broccoli, collard ntsuab, lub caij ntuj no squash, taub dag, thiab cassava.
Dab tsi zoo sib xws ntawm Xanthophyll thiab Carotene?
- Xanthophyll thiab carotene yog ob chav loj ntawm carotenoids.
- Ob leeg yog xim pigments.
- Ob leeg pom dav dav.
- Lawv ua lub luag haujlwm tseem ceeb hauv cov nroj tsuag thiab tsiaj txhu.
- Lawv muaj kev lag luam siv ib yam nkaus.
Qhov txawv ntawm Xanthophyll thiab Carotene yog dab tsi?
Xanthophyll yog ib chav kawm ntawm carotenoid pigments uas muaj hydroxyl lossis epoxide pawg, thaum carotene yog chav kawm ntawm carotenoid pigments uas yog hydrocarbon tsis muaj oxygen atom. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm xanthophyll thiab carotene. Tsis tas li ntawd, xanthophyll tsuas yog muab cov xim daj, thaum carotene tsuas yog muab cov xim txiv kab ntxwv.
Cov duab hauv qab no nthuav tawm qhov sib txawv ntawm xanthophyll thiab carotene hauv daim ntawv teev npe rau kev sib piv ntawm ib sab.
Summary – Xanthophyll vs Carotene
Xanthophyll thiab carotene yog ob chav loj ntawm carotenoid pigments. Ob leeg yog cog pigments. Xanthophylls muaj oxygen atom nyob rau hauv daim ntawv ntawm hydroxyl los yog epoxide, thaum carotene tsis muaj oxygen atom. Carotene yog hydrocarbons. Xanthophylls yog xim daj xim, thaum carotene yog xim txiv kab ntxwv xim. Yog li, qhov no qhia txog qhov sib txawv ntawm xanthophyll thiab carotene.
