Kev Tshawb Fawb Txog Kev Ruaj Ntseg ntawm Cov Tshuaj Tsw Qab thiab Cov Khoom Qab Zib

Raws li cov khoom siv ntxiv tseem ceeb hauv kev tsim khoom noj, qhov ruaj khov ntawm cov tshuaj tsw qab thiab cov tshuaj tsw qab cuam tshuam ncaj qha rau qhov zoo ntawm cov khoom thiab kev paub ntawm cov neeg siv. Qhov ruaj khov ntawm cov tshuaj tsw qab thiab cov tshuaj tsw qab feem ntau pom hauv ob qho:

Kev ruaj khov ntawm Aroma thiab ntxhiab tsw

Qhov ruaj khov ntawm aroma lossis ntxhiab tsw yog hais txog seb cov ntxhiab tsw lossis cov khoom qab zib puas tuaj yeem tswj tau qhov ntxhiab tsw zoo ib yam li lub sijhawm thiab nyob rau hauv qee yam mob yam tsis muaj kev hloov pauv loj. Qhov kev ruaj khov no yog qhov tseem ceeb vim tias ntxhiab tsw yog thawj qhov kev xav uas cov neeg siv khoom muaj txog cov khoom. Txhua qhov kev hloov pauv ntawm cov ntxhiab tsw cuam tshuam ncaj qha rau kev paub ntawm cov neeg siv khoom. Cov yam xws li qhov sib piv ntawm cov khoom sib xyaw ua ke, qhov kub thiab txias hloov pauv, thiab kev raug cua cuam tshuam rau qhov ruaj khov ntawm aroma.

Kev Ruaj Ntseg ntawm Cov Khoom Siv Lub Cev thiab Tshuaj

Qhov ruaj khov ntawm cov tshuaj tsw qab thiab cov tshuaj tsw qab yog hais txog seb lawv cov khoom, ib leeg lossis nyob hauv ib qho chaw (xws li roj, cawv, lossis dej), puas tseem hloov pauv. Thaum khaws cia lossis raug cua sov, lub teeb, lossis huab cua, cov tshuaj tsw qab thiab cov tshuaj tsw qab yuav raug oxidation, degradation, volatilization, lossis sib cais, ua rau cov khoom zoo poob qis. Piv txwv li, cov khoom uas muaj cov unsaturated ob chav bonds feem ntau yuav raug oxidation nyob rau hauv qhov muaj oxygen, ua rau cov ntxhiab tsw phem dua.

Cov Yam Tseem Ceeb Uas Cuam Tshuam Rau Kev Ruaj Ntseg

Kub

Kub yog ib qho ntawm cov yam tseem ceeb tshaj plaws uas cuam tshuam rau kev ruaj khov. Piv txwv li, 2-Methyltetrahydrofuran-3-ib, yog tias khaws cia rau hauv chav sov rau lub sijhawm ntev (hloov chaw ntawm 2–8 ° C pom zoo), tej zaum yuav muaj ntxhiab tsw qaub vim muaj kev hloov pauv ntawm cov khoom xyaw. Qhov kub siab ua rau cov organic sib xyaw ua kom cov tshuaj tsw qab thiab cov khoom qab sai dua, ua rau lawv cov ntxhiab tsw ploj lossis hloov pauv. Ntawm qhov tod tes, qhov kub qis tuaj yeem ua rau qee yam khoom sib xyaw ua ke lossis sib cais, cuam tshuam rau kev sib xws.

Siab

Hauv cov thawv kaw, kev hloov pauv ntawm qhov siab tuaj yeem ua rau poob cov khoom uas yaj tau. Cov tshuaj tsw qab yooj yim rau kev hloov pauv ntawm qhov siab thaum lub thawv qhib.

Acidity thiab Alkalinity

Cov tshuaj tsw qab thiab cov khoom qab zib nyob rau hauv cov chaw acidic lossis alkaline yuav raug hydrolysis, oxidation, lossis lwm yam tshuaj lom neeg. Piv txwv li, qee cov tshuaj ester hydrolyze rau hauv cawv thiab acid nyob rau hauv alkaline mob, hloov cov yam ntxwv ntxhiab tsw qub.

Lub Sijhawm

Kev khaws cia ntev ntev tuaj yeem ua rau maj mam lwj lossis sib cuam tshuam ntawm cov khoom, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj tsw qab sib xyaw (kev sib xyaw ntawm cov tshuaj tsw qab), uas feem ntau nyuaj dua. Piv txwv li, qhov huv ntawm 2,3-hexanedione, thaum xub thawj tshaj 98%, tej zaum yuav txo qis mus txog li 97.7% tom qab peb lub hlis khaws cia (raws li cov ntaub ntawv sim). Cov kev hloov me me ntawm cov khoom me me raws sijhawm tuaj yeem cuam tshuam rau tag nrho cov ntxhiab tsw.

Kev Sib Piv: Kev Ruaj Khov ntawm Cov Tshuaj Tsw Qab Ib Yam vs. Cov Tshuaj Tsw Qab Sib Xyaws

Qhov ruaj khov ntawm cov tshuaj tsw qab uas muaj ib qho sib xyaw ua ke yog qhov yooj yim heev vim lawv cov khoom sib xyaw yooj yim, ua rau lawv cov tshuaj tiv thaiv rau cov yam ntxwv ib puag ncig yooj yim dua los kwv yees thiab tswj hwm. Qhov sib txawv, qhov ruaj khov ntawm cov tshuaj tsw qab sib xyaw yog qhov nyuaj dua, vim tias lawv muaj ntau yam khoom uas yuav cuam tshuam nrog ib leeg, tsim cov tshuaj tshiab lossis hloov pauv cov ntxhiab tsw qub. Tsis tas li ntawd, kev sib raug zoo nrog cov khoom nruab nrab (piv txwv li, cov roj nqa, dej, lossis cov emulsifiers) kuj tseem yuav tsum tau xav txog.

Cov Lus Xaus thiab Cov Lus Qhia

Yuav kom txhim kho qhov ruaj khov ntawm cov tshuaj tsw qab thiab cov khoom qab, nws yog ib qho tseem ceeb uas yuav tsum tswj cov yam ntxwv ib puag ncig xws li qhov kub thiab txias, lub teeb, thiab cov av noo thaum lub sijhawm tsim khoom thiab siv. Kev ua kom zoo tshaj plaws ntawm cov tshuaj kom txo qis kev sib cuam tshuam ntawm cov tshuaj ntawm cov khoom kuj tseem ceeb heev. Rau kev khaws cia, nws raug pom zoo kom siv cov thawv kaw, tiv taus lub teeb, thiab cov tshuaj tsis muaj zog thaum ua qhov kev sim tsis tu ncua los saib xyuas cov khoom siv lub cev thiab tshuaj. Los ntawm kev siv cov kev ntsuas no, kev ua tau zoo ntawm cov tshuaj tsw qab thiab cov khoom qab tuaj yeem ua tau zoo tshaj plaws, ua kom ntseeg tau tias cov neeg siv khoom tau txais kev paub zoo thiab zoo.