Chitin vs Chitosan: Nkag siab qhov txawv qhov tseem ceeb

Nkag siab txog kev ua kom zoo ntawm chitin thiab chitosan yog qhov tseem ceeb rau cov khoom tsim hauv kev lag luam. Chitin hais lus rau cov biopolymer crude pom muaj nyob rau hauv cov ntses plhaub thiab cov phab ntsa ntawm cov kab mob fungal, whereas chitosan tshwm sim los ntawm deacetylation ntawm chitin hmoov. Qhov sib txawv tseem ceeb nyob hauv lawv cov qauv atomic: chitin khaws cov acetyl pawg uas ua rau nws tsis yooj yim, thaum chitosan cov qauv hloov kho muab kev daws teeb meem thiab txhim kho biocompatibility. Cov pab pawg no txiav txim siab lawv cov ntawv tshwj xeeb hauv cov tshuaj, pleev, thiab cov tshuaj nutraceutical.

Molecular Structure thiab Chemical Properties

Cov tshuaj txha caj qaum paub txog ob lub marine-derived biopolymers qhov tseem ceeb. Chitin muaj N-acetylglucosamine units txuas nrog β-1,4-glycosidic bonds, ua rau cov qauv crystalline piv rau cellulose. Kev tshawb fawb qhia tau hais tias chitin qhia tau hais tias qib ntawm acetylation tshaj 50%, ua rau nws, mus rau qhov zoo, insoluble nyob rau hauv feem ntau cov kuab tshuaj.

Chitosan ntsib enzymatic lossis tshuaj deacetylation, tshem tawm cov pab pawg acetyl kom pom cov amino pawg. Qhov kev hloov kho no txo ​​qis qib ntawm acetylation hauv qab 50%, tsis tu ncua ncua ntawm 15-25%. Cov amino pawg uas tsis tau pom dua muab cov nqi zoo hauv cov kua qaub, txhawb kev solubility thiab txhim kho reactivity.

Laboratory tshawb nrhiav uncovers unmistakable zog:

• Molecular hnyav ntau yam: Chitin (1-2.5 lab Da), Chitosan (50,000-2 lab Da)
• Cov ntaub ntawv crystallinity: Chitin (85-90%), Chitosan (60-70%)
• Kev tuav dej noo: Chitin (9.9%), Chitosan (12.8%)

Yog tias koj xav tau cov ntawv thov dej-soluble, ntawm qhov taw tes chitosan ua kom pom cov khoom tsim nyog ntau dua vim nws cov qauv hloov kho thiab txhim kho cov khoom tawg.

Kev ua cov tswv yim thiab tiam sib txawv

Chitin hmoov extraction muaj xws li txawv refinement kauj ruam los ntawm marine biomass qhov chaw. Tus kov pib nrog demineralization siv hydrochloric corrosive, ua raws li deproteinization nrog sodium hydroxide. Kev tswj xyuas kev ua tau zoo tau lees tias kev khiav tawm ntawm cov proteins, minerals, thiab pigments.

Chitosan tiam yuav tsum tau ntxiv deacetylation tuav. Cov tswv yim tshuaj siv cov concentrated sodium hydroxide ntawm qhov kub thiab txias (100-160 ° C), thaum cov txheej txheem enzymatic siv cov deacetylases tshwj xeeb hauv cov mob me me. Progressed producers tshuaj ntsuam cov degree deacetylation los ntawm IR spectroscopy thiab titration txoj kev.

Kev tsim khoom tsis cuam tshuam rau qhov zoo muaj xws li:

• Kev tswj qhov kub thiab txias (± 2 ° C sib txawv)
• Alkali concentration (40-50% rau qhov zoo tshaj plaws deacetylation)
• Cov tshuaj tiv thaiv lub sijhawm (1-6 teev, nyob ntawm seb cov khoom xav tau)
• Particle kwv yees dispersion (80-200 ua haujlwm feem ntau)

Yog tias koj xav tau cov khoom lag luam txhim khu kev qha, ntawm qhov taw tes xaiv cov neeg tsim khoom nrog cov tswv yim pom zoo tau txais yuav yog qhov yooj yim rau khaws cov khoom tshwj xeeb.

Biological Activity thiab Functional Properties

Ob qho tib si biopolymers qhia txog kev ua haujlwm tseem ceeb ntawm cov organic, txawm tias lawv cov cuab yeej sib txawv. Chitin qhia tau hais tias cov tshuaj tiv thaiv tsis tuaj yeem tiv thaiv kab mob gram-zoo microscopic kab mob, nrog qhov tsawg kawg nkaus inhibitory concentrations ncua ntawm 0.1-1.0 mg / mL nyob ntawm qhov hnyav atomic thiab qhov chaw.

Chitosan qhia dav dav cov tshuaj tiv thaiv kab mob vim nws qhov cationic xwm. Cov emphatically them amino bunches txuam nrog tsis zoo them cov kab mob cell membranes, cuam tshuam zaj duab xis txiav txim. Cov kws kho mob xav tau tshaj tawm cov tshuaj tiv thaiv kab mob tiv thaiv kab mob E. coli, S. aureus, thiab Candida albicans.

Cov ntaub ntawv sib piv bioactivity qhia tau hais tias:

• Kev kho qhov txhab nce ceev: Chitosan (65% nrawm) vs Chitin (45% nrawm dua)
• Hemostatic nkaus: Chitosan (3-5 feeb) vs Chitin (8-12 feeb)
• Biodegradation tus nqi: Chitosan (2-6 lub hlis) vs Chitin (6-12 lub hlis)

Yog tias koj xav tau kev txhim kho biocompatibility rau kev siv tshuaj, ntawm lub sijhawm ntawd chitosan muaj kev ua tiav tseem ceeb hauv kev xa khoom thiab cov ntaub so ntswg engineering.

Cov ntawv thov kev lag luam thoob plaws cov haujlwm sib txawv

Cov ntawv thov kev ua liaj ua teb siv ob qho khoom siv los ua eco-phooj ywg rau kev tsim cov tshuaj. Chitin hmoov ua raws li cov av txias thiab cov tshuaj tua kab ib txwm muaj, qhov muaj peev xwm chitosan ua cov nroj tsuag txhim kho kev loj hlob thiab cov tshuaj tua kab mob rau cov noob.

Daim ntawv thov kev kho dej siv lawv cov khoom tshwj xeeb txhob txwm tshaj tawm. Chitin ua haujlwm raws li biosorbent rau kev tshem tawm cov hlau hnyav, thaum chitosan ua haujlwm zoo hauv cov ntaub ntawv flocculation rau tshem tawm cov molecule tshem tawm. Cov chaw kho dej hauv nroog tau tshaj tawm txog 85-95% kev ua tau zoo hauv kev tshem tawm cov pa phem uas siv chitosan-based systems.

Cov ntsiab lus ntawm cov tshuaj pleev ib ce nce qib koom nrog cov biopolymers:

• Moisturizing khoom: Chitosan muab cov khoom ua yeeb yaj kiab
• Anti-aging txhais: Ob cov ntaub ntawv rov qab collagen synthesis
• Cov khoom tu plaub hau: Chitosan txhim kho cov plaub hau zoo thiab ci

Yog tias koj xav tau cov ntawv thov zaub mov, ntawm lub sijhawm ntawd tau lees paub cov ntawv pov thawj raug cai yuav tsum yog qhov yooj yim rau kev tswj hwm kev ua raws cai thiab kev nyab xeeb ntawm cov neeg siv khoom.

Qhov zoo thiab qhov txwv kev sib piv

Kev soj ntsuam kev lag luam qhia tau hais tias muaj kev txaus siab ntau ntxiv hauv chitosan rau cov ntawv thov muaj txiaj ntsig, thaum chitin tuav nws qhov kev sib tw zoo hauv kev siv ntau. Cov ntsiab lus zoo yuav tsum tau ceev faj xav txog qhov hnyav atomic, qib ntawm deacetylation, thiab qib tsim txiaj.

Yog tias koj xav tau kev npaj them nqi rau kev siv tshuab, ntawm qhov ntawd chitin hmoov muab tus nqi zoo heev, hos chitosan suits hwm cov ntsiab lus uas yuav tsum tau hloov kho solubility thiab bioactivity.

Cov qauv zoo thiab cov kev txiav txim siab

Cov ntawv thov tshuaj thov kom ua raws li cov qauv tshuaj pharmacopoeial. Lub Koom Haum Koom Tes Hauv Xeev Pharmacopeia (USP) thiab European Pharmacopoeia (EP) muab cov ntsiab lus rau chitosan, suav nrog cov thickness ranges, degree ntawm deacetylation, thiab microbial txwv.

Analytical test conventions lav zoo ruaj khov:

• FTIR spectroscopy lees paub qhov tseem ceeb ntawm tus kheej
• Viscometry txiav txim siab atomic hnyav faib
• Potentiometric titration ntsuas qhov degree deacetylation
• Kev kuaj microbiological paub meej txog kev ruaj ntseg

Daim ntawv thov kom zoo nkauj xav tau kev ntsuam xyuas kev ruaj ntseg, suav nrog kev xav txog kev khaus khaus ntawm daim tawv nqaij thiab kev ntsuas kev ruaj ntseg nyob rau hauv cov xwm txheej sib txawv. Cov ntawv thov kev noj haus yuav tsum ua raws li FDA GRAS raws li txoj cai thiab cov khoom noj muaj txiaj ntsig ntxiv cov cai.

Yog tias koj xav tau GMP-raws li cov ntaub ntawv, ntawm lub sijhawm ntawd xaiv cov chaw muab kev pabcuam nrog cov ntawv pov thawj tsim nyog tau lees tias kev tswj hwm kev ua raws cai thiab kev lees paub cov khoom zoo.

xaus

Kev xaiv ntawm chitin thiab chitosan yog nyob ntawm cov ntawv thov tshwj xeeb, kev xav tau hnyav, thiab cov khoom ua haujlwm yuav tsum tau ua. Chitin muaj kev npaj them nqi rau kev pabcuam pabcuam thiab kev ua haujlwm ua liaj ua teb, thaum chitosan muab kev hloov kho biocompatibility thiab solubility rau cov tshuaj thiab kho cov ntsiab lus. Kev nkag siab txog qhov sib txawv tseem ceeb no txhawb kev kawm kev txiav txim siab rau cov neeg tsim khoom ntawm kev lag luam. Kev tsim khoom zoo los ntawm cov chaw muab kev ntseeg siab tau lees paub qhov ua tau zoo thiab kev tswj hwm kev ua raws cai, txhawb nqa cov khoom lag luam muaj txiaj ntsig zoo thiab kev tshaj tawm kev lees paub.

Pioneer Biotech's Premium Chitin Powder Solutions

Pioneer Biotech sawv ua tus neeg muag khoom ntseeg siab chitin hmoov, muab cov khoom siv tshuaj qib uas ua tau raws li cov kev xav tau tshaj plaws hauv kev lag luam. Peb lub chaw Qinling Roob sib xyaw ua ke cov kws tshaj lij kev lag luam nrog cov kev tswj xyuas zoo niaj hnub kom xa cov khoom zoo ib yam, siab dawb huv.

peb chitin hmoov qhov zoo muaj xws li:

• Standardized particle loj tis (100-200 mesh) kom ntseeg tau tias zoo dispersion nyob rau hauv formulations
• Cov ntsiab lus ntawm cov hlau hnyav qis dua 10 ppm, ua tau raws li cov cai tswj kev nyab xeeb ntawm tshuaj thiab tshuaj pleev ib ce
• Cov ntsiab lus noo noo khaws cia ntawm 8-10% rau kev pom kev ruaj ntseg thiab txee lub neej txuas ntxiv
• Degree ntawm acetylation tsis tu ncua saum 85%, muab cov khoom ua haujlwm txhim khu kev qha
• Microbial load tsawg dua 1000 CFU / g nrog tsis muaj cov kab mob pathogenic
• Ua kom tiav cov ntaub ntawv txheeb xyuas, suav nrog COA, MSDS, thiab cov ntaub ntawv ruaj khov
• Kev cai deacetylation cov kev pabcuam tsim cov chitosan nrog cov ntsuas ntsuas molecular
• ISO9001, HALAL, thiab KOSHER cov ntawv pov thawj kom ntseeg tau tias muaj kev tswj hwm zoo
• Kev xaiv MOQ yooj yim txhawb nqa ob qho R & D tej yaam num thiab kev lag luam ntau lawm
• Kev txhawb nqa los ntawm cov kws paub txog biochemists rau kev tsim kho kom zoo

Peb qhov kev lees paub zoo suav nrog kev saib xyuas qhov sib xws ntawm batch-to-batch, kom ntseeg tau tias muaj txiaj ntsig zoo rau koj cov khoom lag luam xav tau. Txawm hais tias tsim nutraceutical capsules, tshuaj ntsiav tshuaj, los yog cov tshuaj pleev ib ce, peb cov ntaub ntawv muab kev ntseeg siab thiab ua tau zoo raws li koj daim ntawv thov.

Koom tes nrog Pioneer Biotech rau koj cov kev cai chitin thiab chitosan. Peb txoj kev mob siab rau kev ua tau zoo thiab cov neeg siv khoom txaus siab tau tsim kev sib raug zoo nrog cov tuam txhab ua lag luam thoob ntiaj teb. Tiv tauj peb ntawm sales@pioneerbiotech.com los tham txog koj cov kev xav tau tshwj xeeb thiab tau txais cov ncauj lus kom ntxaws cov khoom specifications.

References

Kumar, MNVR "Kev tshuaj xyuas ntawm chitin thiab chitosan daim ntawv thov." Reactive thiab Functional Polymers 46, no. 1 (2000): 1-27.

Rinaudo, M. "Chitin thiab chitosan: Cov khoom thiab kev siv." Kev nce qib hauv Polymer Science 31, no. 7 (2006): 603-632.

Aranaz, I., Mengíbar, M., Harris, R., Paños, I., Miralles, B., Acosta, N., Galed, G., & Heras, Á. "Cov yam ntxwv ua haujlwm ntawm chitin thiab chitosan." Tam sim no Chemical Biology 3, no. 2 (2009): 203-230.

Younes, I., & Rinaudo, M. "Chitin thiab chitosan npaj los ntawm marine sources. Structure, properties and applications." Marine Drugs 13, no. 3 (2015): 1133-1174.

Peluso, G., Petillo, O., Ranieri, M., Santin, M., Ambrosio, L., Calabrese, D., Avallone, B., & Balsamo, G. "Chitosan-mediated stimulation of macrophage function." Biomaterials 15, nr. 15 (1994): 1215-1220.

Shahidi, F., Arachchi, JKV, & Jeon, YJ "Kev siv zaub mov ntawm chitin thiab chitosans." Trends in Food Science & Technology 10, no. 2 (1999): 37-51.