Thaum lub sij hawm luam yeeb dov thiab ua cov theem, me me ntawm cov luam yeeb shredded, haus luam yeeb plua plav, thiab lwm yam khoom siv tsis raug inevitably accumulates. Reintroducing cov no rau hauv cov txheej txheem ntau lawm tuaj yeem cuam tshuam cov luam yeeb zoo, tab sis tsuas yog muab pov tseg ua rau ib puag ncig muaj kuab paug thiab kev siv nyiaj pov tseg. Cov khoom haus luam yeeb no muaj cov ntsiab lus tseem ceeb, suav nrog nicotine, solanesol, suab thaj, thiab organic acids. Los ntawm kev siv cov tswv yim zoo li supercritical CO2 extraction lossis hnyav extraction, nicotine, haus luam yeeb roj, thiab lwm yam khoom muaj txiaj ntsig tuaj yeem rov qab tau. Txoj hauv kev no tsis tsuas yog hloov cov khoom pov tseg rau hauv cov peev txheej muaj txiaj ntsig tab sis kuj tseem txhim kho kev lag luam tag nrho thiab kev tiv thaiv ib puag ncig.
Hauv kev rho tawm nicotine, dej ua lub luag haujlwm tseem ceeb ua ib qho ntxiv. Los ntawm kev siv supercritical CO2 nrog dej thiab ethanol ua co-solvents, thiab optimizing cov luam yeeb cov ntsiab lus noo noo, nicotine solubility nyob rau hauv supercritical CO2 txhim kho, ua rau kom zoo dua extraction. Nicotine muaj kev siv dav hauv tshuaj, tshuaj tua kab, thiab kev lag luam tshuaj. Kev thov tshwj xeeb yog siab heev rau nws siv los ua cov khoom siv nruab nrab hauv kev kho mob plawv thiab kab mob ntawm daim tawv nqaij. High-purity ntuj nicotine, tshwj xeeb tshaj yog, yog nce nrhiav nyob rau hauv lub lag luam thoob ntiaj teb. Pib nrog nplooj ntawv luam yeeb, cov txheej txheem siv supercritical CO2 extraction, acid-base pretreatment, thiab kem chromatography cais thiab purify nicotine, yielding ib yam khoom nrog ntau tshaj 98% purity.
Yog tias koj xav tau cov khoom siv rho tawm, koj tuaj yeem tiv tauj peb tam sim kom paub meej ntxiv!