Tshem tawm esculin los ntawmnees chestnut extract hmoovyog ib kauj ruam tseem ceeb hauv kev tsim cov khoom muaj kev nyab xeeb, tsim qauv, thiab cov khoom lag luam muaj txiaj ntsig zoo, tshwj xeeb yog cov uas npaj rau kev noj zaub mov, tshuaj, lossis tshuaj pleev ib ce. Esculin, ib tug coumarin glycoside ib txwm muaj nyob rau hauv nees chestnut (Aesculus hippocastanum), yog txuam nrog tej zaum toxicity thaum noj ntau npaum li cas. Yog li ntawd, nws qhov kev tshem tawm lossis txo qis yog qhov tseem ceeb los xyuas kom meej cov khoom muaj kev nyab xeeb thiab kev tswj hwm, tshwj xeeb tshaj yog vim qhov xav tau cov khoom xyaw hauv cov txiv ntseej txiv ntoo extract hmoov feem ntau yog aescin (tseem sau escin), uas muab cov hlab ntsha thiab tiv thaiv - cov txiaj ntsig zoo. Yog li, yuav ua li cas tshem tawm esculin los ntawm nees chestnut extract?
Yuav Ua Li Cas Tshem Tawm Esculin Los Ntawm Nees Chestnut Extract?
Tshem tawm esculin los ntawm nees txiv ntseej extract hmoov koom nrog ntau -theem purification txheej txheem es tsis yog ib kauj ruam. Nws pib nrog raw khoom pretreatment, ua raws li thawj extraction kom tau cov crude extract. Esculin tom qab ntawd txo los ntawm cov kua - kua muab faib, qhov sib txawv polarity cais nws los ntawm aescin. Kev ua kom huv ntxiv tuaj yeem ua tiav siv cov khoom siv adsorption los yog chromatography, nrog rau kev xaiv recrystallization lossis membrane pom kom siab dua purity. Cov txheej txheem xaus nrog kev ziab thiab kev tsim qauv kom ntseeg tau zoo ib yam. Txhua theem yog ua tib zoo tsim los txo qis cov ntsiab lus esculin thaum khaws cov txiaj ntsig aescin, ua kom muaj kev nyab xeeb thiab siv tau zoo.
Raw Khoom Pretreatment
Kev tsim cov qib siab -zoo nees chestnut extract hmoov pib nrog ceev faj xaiv cov noob zoo. Thaum pib, cov noob raug ntxuav kom huv si kom tshem tawm cov plua plav, khib nyiab, thiab lwm yam impurities. Tom qab ntawd lawv qhuav nyob rau hauv kev tswj qhov kub thiab av noo los khaws cov tshuaj nquag thiab tiv thaiv kev loj hlob ntawm microbial. Thaum qhuav, cov noob tau muab tso rau hauv cov hmoov zoo, uas ua rau thaj chaw saum npoo thiab txhim kho kev ua kom zoo. Hauv qee cov txheej txheem, cov kauj ruam defatting yog suav nrog, qhov uas tsis yog - cov kuab tshuaj polar xws li hexane lossis roj av ether yog siv los tshem tawm lipophilic tshuaj xws li roj thiab waxes. Qhov no pretreatment tsis tsuas yog txo cov pliaj impurities tab sis kuj optimizes lub extraction ntawm lub hom phiaj active tivthaiv, aescin, nyob rau hauv cov kauj ruam tom ntej. High-kev kho kom zoo ua kom paub tseeb tias qhov kawg nees txiv ntseej extract muaj kev nyab xeeb, muaj zog, thiab ua haujlwm zoo.
Cov kuab tshuaj Extraction
Thawj kauj ruam hauv kev ua cov txiv ntoo txiv ntoo extract hmoov siv 50-70% aqueous ethanol ua cov kuab tshuaj. Cov kuab tshuaj no yog qhov zoo dua vim tias nws muaj txiaj ntsig zoo yaj aescin, cov khoom siv nquag, thaum tseem rho tawm esculin, uas yuav tsum tau muab tshem tawm hauv cov kauj ruam tom ntej. Kev rho tawm yog ua raws li kev tswj xyuas kom zoo, feem ntau ntawm 50-70℃nrog kev ntxhov siab tas mus li los xyuas kom meej qhov siab tshaj plaws. Thaum cov extraction tiav lawm, qhov sib tov yog lim kom cais cov ntaub ntawv insoluble, uas ua rau ib tug crude extract uas muaj ob qho tib si aescin thiab esculin, npaj rau kev lim dej ntxiv kom txo tau cov khoom tsis zoo.
Kua-Kua faib
Kua-kua extraction yog ib txoj hauv kev zoo los tshem tawm esculin los ntawm kev siv qhov sib txawv polarity. Esculin yog dej ntau heev -soluble, thaum aescin tsawg dua polar thiab yaj hauv cov kuab tshuaj organic. Hauv kev xyaum, cov txiv maj phaub roj yog diluted nrog dej thiab muab rho tawm siv cov kuab tshuaj xws li ethyl acetate lossis n-butanol. Thaum lub sij hawm tus txheej txheem no, esculin nyob twj ywm feem ntau nyob rau hauv lub aqueous theem, thiab aescin migrate mus rau hauv lub organic theem. Sib cais cov organic txheej zoo txo cov ntsiab lus esculin, ua kom cov extract nrog aescin kom muaj kev nyab xeeb dua, siab dua - cov qauv zoo.
Adsorption Resin Purification
Macroporous adsorption resins feem ntau yog ua haujlwm rau kev lag luam - nplai purification ntawm nees chestnut extract hmoov. Cov resins muaj xws li AB-8, D101, thiab HPD series, uas ua haujlwm los ntawm kev xaiv adsorbing compounds raws li lawv cov polarity thiab molecular loj. Nyob rau hauv kev xyaum, cov crude extract yog loaded mus rau hauv resin kem, ces ntxuav nrog dej kom tshem tawm hydrophilic impurities xws li esculin. Tom qab ntawd, ethanol yog siv los elute thiab rov qab lub hom phiaj compound, aescin. Txoj kev no yog qhov ua tau zoo, tus nqi - ua tau zoo, thiab ua kom muaj zog, ua rau nws zoo tagnrho rau cov khoom loj -. Guanjie Biotech siv cov txheej txheem no los xyuas kom meej tias lawv cov noob txiv ntoo hauv cov txiv ntoo yog cov purity siab, tsim qauv, thiab ua tau raws li cov qauv zoo.
Kem Chromatography
Rau cov ntawv thov uas xav tau siab -purity horse chestnut extract, kem chromatography yog ib txoj hauv kev zoo. Cov hom muaj xws li silica gel chromatography thiab thim rov qab -theem C18 chromatography. Nyob rau hauv cov txheej txheem no, cov extract yog siv rau hauv kem, thiab cov tebchaw sib cais siv cov kuab tshuaj gradients xws li methanol - dej sib tov. Esculin thiab aescin cais raws li lawv qhov sib txawv affinities rau lub sijhawm nyob ruaj khov, tso cai rau kev tshem tawm ntawm esculin. Txawm hais tias muaj txiaj ntsig zoo, kab chromatography yog kim dua thiab feem ntau yog tshwj tseg rau cov kws tshuaj - qib rho tawm ntau dua li qhov loj - teev ntau lawm, ua rau nws tsim nyog rau tshwj xeeb, siab - cov qauv zoo.
Membrane Filtration Technology
Niaj hnub nimno nees txiv ntseej extract hmoov ntau lawm txais cov txheej txheem pom cov tshuab, suav nrog ultrafiltration (UF) thiab nanofiltration (NF), kom tshem tawm cov tsis xav tau cov tshuaj xws li esculin. Cov txheej txheem no muab cov txiaj ntsig tseem ceeb: lawv tshem tawm qhov xav tau ntawm cov kuab tshuaj lom neeg, muaj zog- ua haujlwm tau zoo, thiab tso cai rau kev ua haujlwm tsis tu ncua. Cov txheej txheem ua haujlwm los ntawm kev sib cais cov molecules raws li qhov loj me thiab qhov hnyav ntawm molecular -esculin, ua me dua thiab ntau lub ncov qaumteb qabteb, raug xaiv tshem tawm thaum khaws cov khoom siv loj dua li aescin. Cov kuab tshuaj no -dawb, meej txoj hauv kev sib haum nrog cov qauv kev rho tawm ntsuab thiab tshwj xeeb tshaj yog tsim rau kev tsim cov khoom siab tshaj -purity extracts, ua tau raws li cov qauv kev nyab xeeb thiab cov qauv zoo.
Recrystalization
Recrystallization yog qee zaum ua haujlwm raws li qhov kawg polishing kauj ruam los ua kom cov purity ntawm ntshiab nees chestnut extract hmoov. Nyob rau hauv cov txheej txheem no, cov purified extract yog yaj nyob rau hauv ib tug tsim nyog hnyav, thiab tswj txias cia aescin crystallize. Esculin, ua ntau dua soluble, nyob twj ywm hauv cov tshuaj thiab raug tshem tawm. Cov txheej txheem no ua rau muaj txiaj ntsig zoo rau cov ntsiab lus aescin, ua kom muaj siab -purity extract, txawm hais tias nws yuav txo qis tag nrho cov txiaj ntsig vim qee qhov poob ntawm cov khoom thaum lub sij hawm crystallization.
Enzymatic degradation (txoj kev Emerging)
Cov kev tshawb fawb tsis ntev los no tau tshawb xyuas siv cov enzymes los txo cov ntsiab lus esculin los ntawm kev hloov nws mus rau hauv cov khoom sib xyaw kom zoo. Tshwj xeeb, -glucosidase tuaj yeem hydrolyze esculin rau hauv esculetin thiab qabzib. Txoj hauv kev no muab cov hom phiaj thiab ib puag ncig zoo rau lwm txoj hauv kev tshuaj. Txawm li cas los xij, txawm hais tias nws muaj peev xwm, kev degradation enzymatic tseem tsis tau siv dav hauv kev lag luam - nplai bulk horse chestnut extract hmoov ntau lawm vim yog cov nqi siab, kev nyuaj, thiab cov teeb meem hauv kev ntsuas cov txheej txheem kom zoo.
Kev Tswj Xyuas Zoo thiab Kev Xeem
Tom qab ua kom huv si, kev tswj xyuas nruj yog qhov tseem ceeb kom muaj kev nyab xeeb thiab sib xws. Cov txheej txheem tshuaj ntsuam xyuas muaj xws li High-Performance Liquid Chromatography (HPLC), UV-Vis spectrophotometric, thiab nyias-Txheej Chromatography (TLC). Ntawm cov no, HPLC yog txoj kev nyiam rau kev ntsuas cov ntsiab lus aescin thiab kuaj cov esculin seem. Siab -zoo nees txiv ntseej extract hmoov feem ntau ua tau raws li cov lus qhia nruj, nrog rau qib aescin tus qauv ntawm 16-20% thiab esculin txo qis rau cov lej lossis qis dua qhov txwv tsis pub muaj. Cov txheej txheem kev sim nruj no tau lees paub tias cov khoom kawg yog ob qho tib si nyab xeeb thiab siv tau zoo rau cov neeg siv khoom.
Vim li cas tshem tawmEsculinYog Tsim nyog?
Los ntawm ob qho tib si toxicological thiab kev tswj xyuas, kev tshem tawm ntawm esculin los ntawm ntuj nees chestnut extract hmoov yog qhov tseem ceeb los xyuas kom meej cov khoom muaj kev nyab xeeb thiab ua raws. Raw horse chestnut noob ib txwm muaj ntau yam bioactive tebchaw, suav nrog esculin thiab fraxin, uas tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv yog tias noj tsis ua haujlwm. Esculin, tshwj xeeb tshaj yog, suav tias yog qhov tsis xav tau vim nws muaj peev xwm toxicity thiab nws cov kev faib tawm hauv coumarin derivatives, uas raug tswj hwm nruj hauv ntau lub khw hauv ntiaj teb.
• Kev Nyab Xeeb Thiab Kev Cai Lij Choj
Ib qho ntawm cov laj thawj tseem ceeb rau kev tshem tawm esculin yog ua kom tau raws li kev nyab xeeb thiab kev tswj hwm. Cov tub ceev xwm thoob plaws Tebchaws Europe, Tebchaws Meskas, thiab Asia tswj hwm kev txwv rau coumarin-cov khoom sib txuas hauv cov khoom noj, tshuaj noj, thiab cov khoom siv tshuaj. Kev txo qis cov ntsiab lus esculin tsis txaus tuaj yeem ua rau tsis ua raws li -, txwv kev nkag mus rau hauv kev lag luam, thiab ua rau muaj kev pheej hmoo rau cov neeg siv khoom.
• Product Standardization
Lwm qhov tseem ceeb tshaj plaws yog cov khoom tsim qauv. High-zoo nees chestnut extract hmoov yog feem ntau standardized kom muaj 16–20% aescin, lub ntsiab active compound lub luag hauj lwm rau vascular thiab los tiv thaiv- inflammatory pab. Ua kom tiav qhov kev qhia tshwj xeeb no yuav tsum tau tshem tawm cov khoom tsis yog - cov hom phiaj xws li esculin, kom ntseeg tau cov khoom lag luam zoo ib yam thiab txhim khu kev qha.
• Txhim kho cov yam ntxwv ntawm kev xav
Tsis tas li ntawd, tshem tawm esculin ho txhim kho qhov kev xav ntawm cov extract. Esculin pab txhawb lub suab iab, uas tuaj yeem cuam tshuam tsis zoo rau palatability ntawm cov khoom tiav, tshwj xeeb tshaj yog nyob rau hauv cov khoom noj khoom haus thiab cov tshuaj noj hauv qhov ncauj.
• Zuag qhia tag nrho Purity Thiab Functional Performance
Thaum kawg, txo esculin txhim kho tag nrho purity thiab kev ua haujlwm ntawm cov extract. Los ntawm kev tshem tawm cov khoom tsis tsim nyog lossis muaj peev xwm cuam tshuam, cov neeg tsim khoom tuaj yeem txhim kho bioavailability thiab kev ua tau zoo ntawm aescin, ua rau muaj txiaj ntsig zoo dua thiab siab dua - cov khoom muaj txiaj ntsig zoo rau ntau yam kev siv.
Xaus
Tshem tawm esculin los ntawm nees chestnut extract hmoov yog ib qho kev xav tau tab sis cov txheej txheem tseem ceeb. Nws muaj kev sib xyaw ua ke ntawm cov kuab tshuaj rho tawm, theem sib cais, adsorption, thiab cov txheej txheem purification siab heev. Lub hom phiaj yog los tsim ib qho siab -purity extract nplua nuj nyob rau hauv aescin thaum txo cov khoom uas muaj teeb meem xws li esculin.
Ntawm ntau txoj hauv kev, kua-kua extraction thiab macroporous resin adsorption yog qhov siv dav tshaj plaws vim lawv qhov sib npaug ntawm kev ua tau zoo, scalability, thiab tus nqi-effectiveness. Cov txheej txheem Advanced xws li membrane filtration thiab chromatography ntxiv txhim khu purity rau cov ntawv tshwj xeeb.
Guanjie Biotech ua lub luag haujlwm tseem ceeb hauv kev lag luam no los ntawm kev siv cov thev naus laus zis thev naus laus zis thiab kev tswj hwm nruj. Raws li tus kws tshaj lij nees chestnut extract tsum, peb xyuas kom meej tias peb cov nees chestnut extract hmoov cov khoom ua tau raws li cov qauv kev nyab xeeb thoob ntiaj teb thaum xa cov potency thiab kev ua tau zoo. Txais tos nug nrog peb ntawminfo@gybiotech.com.
Thaum kawg, kev tshem tawm ntawm esculin tsis yog ib qho kev xav tau nkaus xwb tab sis yog ib qho tseem ceeb hauv kev hloov cov khoom siv raw khoom mus rau hauv kev nyab xeeb, ua tau zoo, thiab kev ua lag luam - cov khoom npaj txhij.
Cov ntaub ntawv
[1] Hostettmann, K., & Marston, A. (1995). Saponins. Cambridge University Press. pp. 225–230. - Sib tham txog tshuaj muaj zog thiab kev rho tawm ntawm saponins, suav nrog aescin los ntawm nees txiv ntseej.
[2] Högger, P., & Suter, A. (2001). Pharmacokinetics thiab metabolism ntawm aescin. Planta Medica, 67(6), 544–548. - Muab kev nkag siab rau hauv bioactive compounds thiab xav tau kev tshem tawm esculin hauv cov extracts.
[3] European Medicines Agency (EMA). (2017). Daim ntawv ntsuam xyuas ntawm Aesculus hippocastanum L., noob extract. EMA/HMPC/1234. - Kev tswj cov txheej txheem ntawm coumarin glycosides, suav nrog esculin.
[4] Li, J., Zhang, H., Chen, Y. (2010). Optimization ntawm macroporous resin purification ntawm aescin los ntawm nees chestnut noob. Phau ntawv Journal of Chromatography B, 878(28), 2801–{10}} Paub meej txog kev ua kom huv huv siv cov khoom siv adsorption.
[5] Silva, F., & Costa, R. (2015). Kev tshem tawm ntawm coumarin derivatives los ntawm botanical extracts: Ua kua -kua partitioning thiab recrystallization cov tswv yim. Cov qoob loo thiab cov khoom lag luam, 65, 45–52. - Sib tham txog cov tswv yim los txo cov ntsiab lus esculin.
[6] Zhang, W., Li, M., & Wang, X. (2018). Daim ntawv thov ntawm daim nyias nyias filtration hauv tshuaj ntsuab extract purification. Separation and Purification Technology, 194, 173–182. - Tshuaj xyuas ultrafiltration thiab nanofiltration rau kev xaiv cov tshuaj tshem tawm.
[7] Chen, L., Zhao, Y. (2020). Enzymatic hydrolysis ntawm esculin nyob rau hauv nees chestnut extracts. Phau ntawv Journal of Natural Products, 83(7), 2105–2112. - Tshawb nrhiav cov txheej txheem enzymatic los ua kom cov esculin.
