Kev lag luam tshuaj tsw qab thiab tsw qab ntawm kuv lub teb chaws yog kev lag luam uas tsom mus rau kev ua lag luam thiab kev sib koom ua ke thoob ntiaj teb. Cov tuam txhab tshuaj tsw qab thiab tshuaj tsw qab txhua tus nyob hauv Suav teb, thiab ntau cov khoom tshuaj tsw qab thiab tshuaj tsw qab hauv tsev kuj raug xa tawm ntau heev. Tom qab ntau tshaj 20 xyoo ntawm kev txhim kho, kev lag luam tshuaj tsw qab thiab tshuaj tsw qab ntawm kuv lub teb chaws tau vam khom kev tsim kho tshiab tas mus li, kev tsim khoom thiab kev ua haujlwm tas mus li, thiab kev lag luam tau ua tiav kev txhim kho zoo heev.
Cov tsw qab ntawm kev lag luam txawv ntawm cov tsw qab tshuaj lom neeg txhua hnub thiab cov tsw qab zaub mov. Cov tsw qab ntawm kev lag luam muaj cov ntxhiab tsw qab, tiv taus kub thiab tsw qab ntev. Lawv feem ntau yog siv rau hauv cov yas, roj hmab, tshuaj pleev xim thiab cov xim pleev xim. Nws yog siv los npog cov ntxhiab tsw thiab ua kom cov ntxhiab tsw qab ntxiv kom ua tiav qhov muag khoom zoo.
Cov tsw qab hauv kev lag luam yog ib qho khoom siv tseem ceeb uas txhawb nqa cov khoom tsw qab. Tshuaj tsw qab yog cov khoom siv raw rau kev sib xyaw cov tsw qab; cov tsw qab siv dav hauv cov khoom noj, dej haus, cawv, luam yeeb, tshuaj ntxuav tes, tshuaj pleev ib ce, tshuaj txhuam hniav, tshuaj, pub tsiaj, ntaub thiab tawv. Ntxiv rau cov tshuaj tsw qab, qhov ntau ntawm cov essence hauv cov khoom tsw qab sib txawv tsuas yog 0.3-3%, tab sis nws ua lub luag haujlwm tseem ceeb hauv qhov zoo ntawm cov khoom, yog li cov tsw qab hu ua "ntsuj plig" ntawm cov khoom tsw qab.
Nyob rau hauv kev coj ntawm kev tsim kho tshiab thiab thev naus laus zis, kev tshawb fawb thiab kev kawm ntawm kuv lub teb chaws txoj kev lag luam tsw qab thiab tsw qab tau ua tiav cov txiaj ntsig zoo. Piv txwv li, lub tsev kawm ntawv thawj zaug ntawm Shanghai Institute of Technology, nws txoj kev cob qhia cov neeg ua haujlwm txog kev tshawb fawb thiab thev naus laus zis thiab kev ua tiav ntawm kev tshawb fawb thiab thev naus laus zis tau muaj txiaj ntsig zoo. Lub tsev kawm ntawv tau tsim txoj haujlwm cob qhia txuj ci ntawm "kev cob qhia cov neeg txawj ntse siv thev naus laus zis siab nrog lub siab tshiab thiab kev muaj peev xwm ua tau, thiab cov kws ua haujlwm zoo thawj kab nrog lub zeem muag thoob ntiaj teb", thiab tsim "kev pabcuam kev lag luam hauv cheeb tsam thiab kev txhim kho kev sib raug zoo, kev pabcuam kev lag luam hauv nroog niaj hnub, thiab kev pabcuam cov lag luam me thiab nruab nrab. Cov nroog thiab cov lag luam me thiab nruab nrab, nyob hauv Shanghai, ntsib Yangtze River Delta, kis thoob plaws lub tebchaws, thiab ua tau raws li cov kev xav tau ntawm zej zog".
Lub sijhawm khaws cov tshuaj tsw qab ntawm cov tshuaj tsw qab feem ntau yog 3-15 lub hlis. Vim tias cov tshuaj tsw qab sib txawv muaj qhov ceev sib txawv hauv cov khoom sib txawv, nyob ntawm hom thiab cov mis ntawm hom tshuaj tsw qab, thiab cov cua ntws yog tus yeeb ncuab ntawm cov tshuaj tsw qab ntawm cov tshuaj tsw qab thiab cov hmoov tshuaj tsw qab, cov khoom tiav lawm raug qhwv thiab muab tso rau hauv lub thawv. Cov kho kom zoo nkauj thiab cov ntawv nplaum rau ntawm qhov chaw ntawm cov khoom tiav lawm tuaj yeem txo qhov kev ntim ntawm cov tshuaj tsw qab thaum lub sijhawm khaws cia, yog li ua kom lub sijhawm khaws cov tshuaj tsw qab ntev dua.
Cov txheej txheem rho tawm cov pa roj carbon dioxide supercritical yog siv los rho cov roj volatile ntawm frangipani uas tsim tawm hauv tebchaws Laos. Tib lub sijhawm, cov thev naus laus zis roj chromatography-mass spectrometry yog siv los tshuaj xyuas cov tshuaj lom neeg ntawm cov roj volatile, uas muab lub hauv paus kev tshawb fawb rau kev txhim kho thiab kev siv frangipani. Los ntawm kev tshawb fawb sim, pab pawg tshawb fawb tau txiav txim siab cov txheej txheem rau cov kua carbon dioxide supercritical ntawm cov roj frangipani: siab rho tawm 25Mpa, kub rho tawm 45 ° C, sib cais I siab 12Mpa, thiab sib cais I kub 55 ° C. Hauv qab cov xwm txheej no, qhov nruab nrab ntawm cov extract yog 5.8927%, uas yog siab dua li cov txiaj ntsig ntawm cov pa distillation test extract ntawm 0.0916%.
Kev lag luam tsw qab thiab tshuaj tsw qab hauv Suav teb muaj peev xwm loj hlob thiab muaj chaw ua lag luam loj heev. Cov tuam txhab tsw qab thiab tshuaj tsw qab nto moo thoob ntiaj teb tau nqis peev thiab tsim cov chaw tsim khoom hauv Suav teb. Nrog lawv lub koob npe nrov thoob ntiaj teb thiab cov txiaj ntsig zoo ntawm kev siv tshuab, lawv tau nyob hauv feem ntau ntawm cov tsw qab thiab tshuaj tsw qab hauv tsev nruab nrab mus rau qib siab. Tib lub sijhawm, tom qab ntau xyoo ntawm kev txhim kho, cov tuam txhab tsim khoom tsw qab thiab tshuaj tsw qab hauv tsev tau tshwm sim ntau lub tuam txhab ua lag luam. Kev vam khom lawv cov kev paub txog cov tsw qab hauv zos, cov khoom zoo ruaj khov, cov nqi khoom tsim nyog, thiab cov kev pabcuam kev txawj ntse, cov tuam txhab ntiag tug no tau maj mam yeej kev lees paub ntawm cov neeg siv khoom nruab nrab mus rau qib siab, thiab lawv cov feem ntawm kev ua lag luam thiab kev paub txog hom tau nce ntxiv txhua hnub.
Ua haujlwm tau kub heev, tsw qab zoo, khaws tau tsw qab ntev, thiab lwm yam. Siv rau hauv cov khoom yas, cov khoom siv roj hmab, yas, cov khoom siv khau, hnab, khoom siv tes ua, ntaub, ntim khoom, qhov cua nkag, chav tsev so, khoom siv hauv tsev, ntawv sau, khoom siv sab hauv tsheb, thiab lwm yam. Nws yooj yim heev rau siv thaum tsim cov khoom yas, yog li cov khoom yas khaws tau tsw qab zoo.
Kev tsim khoom thiab kev txhim kho ntawm kev lag luam tsw qab thiab tshuaj tsw qab sib xws nrog kev txhim kho ntawm kev lag luam txhawb nqa xws li kev lag luam, dej haus, thiab tshuaj lom neeg txhua hnub. Kev hloov pauv sai hauv kev lag luam downstream tau txhawb nqa kev txhim kho tas mus li ntawm kev lag luam tsw qab thiab tshuaj tsw qab, nrog rau kev txhim kho tas mus li ntawm cov khoom zoo, kev nce ntxiv tas mus li ntawm ntau yam, cov zis thiab kev muag khoom. Nce ntxiv txhua xyoo. Txhawm rau kom ntseeg tau tias muaj kev thov loj heev ntawm cov lag luam downstream thiab txhawb kev txhim kho ntawm kev lag luam khoom siv, yuav ua li cas txhawb kev hloov pauv thiab kev txhim kho ntawm kev lag luam tau dhau los ua teeb meem rau kev lag luam.
Ntxiv rau cov tuam txhab txawv teb chaws loj hauv cov tuam txhab tsw qab Suav teb, cov tuam txhab uas yog lub xeev muaj kev tshawb fawb tsis muaj zog, cov ntsiab lus tsis muaj zog, cov txheej txheem tswj hwm tsis yooj ywm, thiab kev paub txog kev pabcuam tsis zoo, uas ua rau qeeb lossis txawm tias rov qab mus rau lawv qhov kev txhim kho tam sim no. Nrog kev txhawb nqa ntawm cov cai hauv tebchaws tam sim no, cov nroog thiab cov lag luam ntiag tug tau tsim kho sai. Nrog lawv cov txheej txheem ua haujlwm yooj ywm thiab cov kev pabcuam zoo, lawv tau txais kev qhuas los ntawm cov neeg siv, thiab lawv cov feem ntawm kev ua lag luam txuas ntxiv nthuav dav. Txawm li cas los xij, rau feem ntau cov lag luam ntiag tug, vim yog lub hauv paus kev lag luam tsis zoo thiab thev naus laus zis, kev paub txog hom lag luam tsis zoo, thiab cov khoom tsis ruaj khov, qhov xwm txheej no yuav ua rau muaj kev sib koom ua ke hauv kev lag luam thiab muab lub hauv paus rau cov thawj coj hauv kev lag luam kom loj dua thiab muaj zog dua.
Lub sijhawm tshaj tawm: Lub Peb Hlis-06-2024