Cov txiaj ntsig kev noj qab haus huv ntawm Usnea Acid yog dab tsi?

Usnea acid hmoov yog dab tsi?

Usnea yog dab tsi?

Usnea (Dolichousnea longissima, U. barbata thiab U. californica) yog ib hom lichens, uas yog kev sib xyaw ntawm fungus thiab algae uas loj hlob ua ke ntawm cov ntoo ntoo pom thoob plaws ntiaj teb. Usnea hom tuaj yeem tshwm sim li grey, dawb, liab lossis dub cog lub cev uas siv los ua cov tshuaj hauv tshuaj ntsuab.

Cov genus ntawm cov ntoo uas cov hom no loj hlob tuaj yog cov tswv cuab ntawm tsev neeg cog hu ua Parmeliaceae. Cov ntoo no zoo li loj hlob nyob rau hauv cov huab cua ntub, txias, xws li cov nyob hauv Pacific Northwest ntawm Teb Chaws Asmeskas

Muaj kev ntseeg tias muaj nyob nruab nrab ntawm 40 thiab 80 hom usnea, nyob ntawm cov txheej txheem sib txawv uas siv nyob rau hauv ntau lub teb chaws.

Puas yog usnea edible? Yog, tab sis nws feem ntau tsis noj nyob rau hauv daim ntawv cog.

Es tsis txhob, usnea yog noj nyob rau hauv raws li ib tug kua extract los yog siv topically rau ntawm daim tawv nqaij los yog nyob rau hauv lub qhov ncauj. Nws kuj tseem siv tau los ua tshuaj ntsuab tshuaj yej.

Lwm lub npe uas usnea mus los ntawm suav nrog:

luj moss

luj lichen

yawg laus hwj txwv

poj niam cov plaub hau ntev

tsob ntoo moss

Thaum siv tshuaj, qee zaum nws tau teev npe raws li sodium usniate, uas muaj cov khoom xyaw nquag usnic acid. Usnic acid yog ib qho phenolic compound nrog cov qauv dibenzofuran uas tau pom tias muaj peev xwm tiv thaiv qog noj ntshav.

Vim tias nws tuaj yeem siv sijhawm ntev los loj hlob ntawm cov ntoo, nws tam sim no kuj tau tsim nyob rau hauv cov chaw kuaj mob kom ceev ntau lawm.

Paub meej:

Lub npe: Usnea acid

Lub npe: Lichen acid

Cov tshuaj formula: C18H16O7

Molecular Luj: 344.3154

CAS npe: 125-46-2

EINECS ID nkag mus No.: 231-456-0

Cov tsos: daj prismatic siv lead ua

Flash point: 219.13 degree

Kub taw tes: 594.83 degree

Qhov ceev: 1.498g / cm³

Yees duab:

1. Cim: daj prismatic siv lead ua (acetone)

2. Melting point (degree): 192-194 (crystallized hauv ethanol) 201 - 204 (crystallized hauv inert hnyav)

3. Polarity: ntxiv rau 509.4 degree (c=0.697, chloroform)

4. Solubility: (g / 100ml dej)<0.01, acetone="" 0.77,="" ethyl="" acetate="" 0.88,="" ethanol="" 0.02,="" sugar="" aldehyde="" 7.32,="" sugar="" alcohol="" 1.21="" (25="">

5. Solubility: Yooj yim soluble hauv chloroform thiab glacial acetic acid, tab sis hardly soluble nyob rau hauv kub cawv

Khoom thiab stability:

Cov khoom no yog ib tug dav-spectrum tshuaj tua kab mob, uas muaj ib tug muaj zog inhibitory nyhuv ntawm feem ntau gram-zoo kab mob thiab tseem yuav inhibit qhov kev loj hlob ntawm tuberculosis kab mob. Yog tias ua ke nrog me me ntawm streptomycin, nws inhibition ntawm tuberculosis tuaj yeem txhim kho tau zoo.

Lub teeb rau golden daj koob zoo li tus siv lead ua, yooj yim soluble nyob rau hauv chloroform, glacial acetic acid, tab sis hardly soluble nyob rau hauv kub cawv, tasteless, odorless, non-toxic, tsis corrosive, thiab tsis volatile.

Txoj kev Synthesis:

1. Cov hmoov cladocera thiab Usnea barbata Wigg. uas yog epiphytic ntawm cov tawv ntoo ntawm fir (dawb ntoo thuv), ntoo thuv thiab lwm yam hav zoov coniferous, feem ntau hu ua ntoo moss. Extract ntawm ntoo qhib moss thiab ntoo moss nrog benzene los yog ethanol ua hnyav. Cov extract muaj ib tug loj npaum li cas ntawm phenolic acid thiab phenolic ketone tebchaw. Cov tebchaw no muaj qhov hnyav molecular, tsis muaj zog, thiab tsis muaj ntxhiab tsw. Lawv tsis ua rau muaj qhov tsw ntawm ntoo qhib moss thiab ntoo moss khoom. Tom qab ib tug series ntawm kev kho mob, lichen acid, ib tug ntawm cov saum toj no by-products, yuav tau txais.

2. Qhuav lub lichen thiab rho tawm nrog acetone ua hnyav. Sau cov extract, mloog zoo rau ib lub ntim me me, thiab cia nws sawv ntsug. Usnic acid tuaj yeem crystallized thiab sib cais. Tom qab recrystallization, cov khoom ntshiab tuaj yeem tau txais

Lub hom phiaj:

Cov kev npaj uas muaj cov khoom no tau pom tseeb kev kho mob rau cov neeg mob qog noj ntshav. Nws muaj qee yam kev kho mob tawm tsam malaria hauv kev kho mob. Nws muaj qee yam kev kho mob ntawm kev raug mob, kub hnyiab thiab kab mob ntawm daim tawv nqaij, mob ncauj tsev menyuam, lub txiv mis rupture, tiv thaiv perineal rupture, thiab lwm yam. Tsis tas li ntawd, nws kuj tseem siv tau los ua raw khoom ntawm cov tshuaj tua kab mob "pyruvium".

Nws yog siv los nres los ntshav, tawm tsam cov kab mob, txo qis qhov mob, kho qhov txhab, tiv thaiv cov hniav caries, tshem tawm cov quav hniav, txhim kho tib neeg kev tiv thaiv, thiab muaj txiaj ntsig zoo ntawm qhov ncauj qhov ntswg thiab vaginitis. Nws feem ntau yog siv los ua ib qho ntxiv hauv cov tshuaj txhuam hniav thiab tshuaj pleev ib ce.

Raws li kev pabcuam tshuaj pleev ib ce pom zoo los ntawm CTFA, usnic acid yog cov tshuaj tua kab mob dav dav nrog cov nyhuv inhibitory ntawm feem ntau cov kab mob gram-zoo, nrog rau qhov concentration ntawm 50 μ g. Ml-1 tuaj yeem cuam tshuam kev loj hlob ntawm cov kab mob thiab siv los ua cov tshuaj tua kab mob zoo heev hauv cov tshuaj pleev ib ce. Nws muaj kev xaiv inhibition cuam tshuam rau cov kab mob tseem ceeb streptococcus ua rau cov kab mob hauv qhov ncauj thiab caries. Usnic acid muaj cov nyhuv curative ntawm ntau yam kab mob ntawm daim tawv nqaij xws li hlawv, kab mob, psoriasis, thiab lwm yam

Txoj kev khaws cia:

Chav ntsuas kub kaw cia