"Conchiolin," lub matrix ntawm plhaub ntawm mollusca, tsuas yog me ntsis soluble hauv acids. … Nacre yog tsim los ntawm ob yam khoom, aragonite -- uas yog translucent, muab lub hlaws nws zoo nkauj lustrous tsos thiab conchiolin - uas ua raws li cov kua nplaum tuav cov txheej ntawm aragonite ua ke.
conchiolin yog dab tsi?
Conchiolins (qee zaum hu ua conchins) yog cov proteins nyuajuas tau zais los ntawm mollusc's sab nrauv epithelium (lub mantle). Cov proteins no yog ib feem ntawm cov matrix ntawm cov organic macromolecules, feem ntau yog cov proteins thiab polysaccharides, uas sib sau ua ke ua lub microenvironment qhov twg crystals nucleate thiab loj hlob.
Lub ntsiab lus ntawm Conchiolin yog dab tsi?
: a scleroprotein tsim cov organic hauv paus ntawm mollusk shells (raws li niam-ntawm-pearl) - saib nacre sense 2.
Unio puas tsim pearl?
Pearl yog ib lub pov haum muaj txiaj ntsig uas noob neej paub txij thaum ub. … Cov hlaws uas tsim cov bivalves yog marine oysters ntawm genus Pinctada, tab sis qee cov dej tshiab bivalves ntawm genus Unio thiab Anodonta kuj tsim pearl tab sis tsis zoo thiab tsis tshua muaj kev siv.
Yuav ua li cas yog cov tshuaj muaj pes tsawg leeg ntawm pearl?
Pearls yog tsim los ntawm 82%–86% calcium carbonate (as aragonite CaCO 29) 10%–14% conchiolin (C 32 H43N9O11) thiab 2%–4% dej (Mohsen, 2000, p. 103). Lub ntsiab tseem ceeb ntawm pearls, calcium carbonate (CaCO 3), yog ib qho ntawm cov khoom siv hauv ntiaj teb.
