Nqaij npuas yeej ib txwm yog lub ntsiab ntawm cov nqaij ntawm cov neeg nyob hauv lub rooj, thiab yog ib qho tseem ceeb ntawm cov protein zoo.Nyob rau hauv xyoo tas los no, intensivenpua yugtau ua raws li kev loj hlob ntawm tus nqi, pub hloov pauv tus nqi, ntshiv nqaij tus nqi, lub teeb xim ntawm nqaij npuas, saj tsis zoo thiab lwm yam teeb meem, thiab nqaij npuas yog kev sib tw thiab qab, uas yog nrov rau pej xeem.Yam dab tsi cuam tshuam rau qhov saj ntawm nqaij npuas?

1. Ntau yam

Tam sim no, hydrocarbons, aldehydes, ketones, alcohols, esters, furans, pyrazine thiab lwm yam tshuaj volatile tau raug kuaj pom hauv nqaij npuas.Feem ntau ntawm cov khoom no yog tib yam hauv ntau hom nqaij, tab sis lawv cov ntsiab lus txawv.Piv txwv li, npua yug nqaij npuas muaj nplua nuj tsw precursors xws li qab zib, rog thiab protein.Cov npua hauv zos yog bred los ntawm cov neeg ua haujlwm ntawm peb lub teb chaws los ntawm kev yug me nyuam mus ntev thiab yog cov tsev txhab nyiaj muaj txiaj ntsig zoo.Peb yuav tsum muab kev ua si tag nrho rau qhov zoo ntawm cov npua hauv zos thiab ua kom tus cwj pwm npua yug nrog qhov tsw zoo.

2. Hnub nyoog thiab poj niam txiv neej

Nqaij npuas rhiab yog cuam tshuam los ntawm npua hnub nyoog.Piglets, vim lawv cov nqaij fibers zoo thiab tsis paub tab kev sib txuas ntawm cov ntaub so ntswg, yog tshiab thiab kev sib tw.Nrog rau kev loj hlob ntawm lub hnub nyoog, kev paub tab ntawm kev sib txuas ntawm cov ntaub so ntswg maj mam nce, thiab cov nqaij fibers ua thicker, ua rau poob ntawm kev sib tw.Qee cov kev tshawb fawb tau pom tias cov nqaij zoo maj mam txhim kho nrog lub hnub nyoog nce, tab sis zoo li ruaj khov tom qab 220 hnub ntawm hnub nyoog, uas yuav tsum tau saib xyuas lub hnub nyoog tua npua hauv kev xyaum ua ntau lawm.Kev tua ntxov ntxov tsis yog qhov tsim nyog rau kev txhim kho cov nqaij zoo, thiab kev tua lig yuav nkim cov nqi tsim khoom thiab yuav tsis txhim kho nqaij zoo.Nqaij npuas zoo yog cuam tshuam tsis tsuas yog los ntawm hnub nyoog, tab sis kuj los ntawm kev sib deev npua.Cov seem granules ntawm boar nqaij fibers yog loj, thiab lawv muaj androstenone, skatole, polyunsaturated fatty acids thiab lwm yam khoom uas cuam tshuam rau tsw.

3. Pub

PubFeem ntau suav nrog qib kev noj zaub mov noj, pub muaj pes tsawg leeg thiab tswj kev pub noj.Qib ntawm kev noj zaub mov noj yog ib qho ntawm cov yam ntxwv cuam tshuam rau cov nqaij npuas zoo.Kev noj zaub mov kom muaj zog thiab tsis muaj protein ntau, nqaij npuas muaj roj ntau thiab cov nqaij mos zoo;Noj cov zaub mov uas muaj protein ntau thiab tsis muaj zog, cov nqaij yog compact thiab cov rog tsawg;Cov amino acids xws li lysine, threonine thiab cysteine ​​kuj muaj kev cuam tshuam zoo rau cov nqaij zoo, yog li yuav tsum tau them nyiaj rau qhov sib ntxiv ntawm cov khoom noj.Ntxiv nrog rau qib kev noj zaub mov, cov khoom noj muaj pes tsawg leeg yuav cuam tshuam rau cov nqaij npuas zoo.Pub cov pob kws ntau dhau yuav ua rau nqaij npuas daj, feem ntau vim tias cov xim daj hauv pob kws yog tso rau hauv npua rog thiab nqaij nqaij;Thiopropene, propylene disulfide, allicin, aromatics thiab lwm yam khoom nyob rau hauv pub yuav ua rau tshwj xeeb tsw ntawm nqaij npuas thiab cuam tshuam rau nqaij zoo.Qhov sib ntxiv ntawm Eucommia ulmoides nplooj extract raws li pub additive nyob rau hauv pub yuav pab kom synthesize collagen thiab txhim kho nqaij npuas zoo.Tsis tas li ntawd, qhov zoo ntawm nqaij npuas kuj yuav cuam tshuam los ntawm txoj kev pub mis.Piv txwv li, muaj chaw ua si tshwj xeeb rau npua.Nce tus nqi ntawmzaub ntsuabthiab coarse pub tuaj yeem txhim kho cov nqaij npuas zoo.

4. Lwm yam

Preslaughter yam xws li slaughtering txoj kev, tos lub sij hawm, tsheb thauj mus los, thiab tom qab mortem kho mob xws li scalding pas dej ua ke kub thiab ua noj ua haus txoj kev yuav cuam tshuam rau nqaij npuas zoo.Piv txwv li, piv nrog hluav taws xob poob siab, carbon dioxide asphyxiation tuaj yeem txo qhov tshwm sim ntawm cov nqaij dawb;Txo lub sijhawm thauj thiab ncua sij hawm tua tsiaj tuaj yeem txo qhov kev ntxhov siab ntawm npua;Qhov kub ntawm lub pas dej scalding tsis yooj yim kom siab dhau.Yog tias qhov kub siab tshaj 60 ℃, cov nqaij npuas yuav scalded thiab dov, uas yuav cuam tshuam qhov saj ntawm nqaij npuas.

Txhawm rau ua kom tiav, hauv kev tsim khoom tiag tiag, peb yuav tsum xaiv ntau yam tsim nyog, ntxiv dag zog rau kev tswj hwm kev noj zaub mov, txo qis kev ntxhov siab ua ntej thiab lwm yam kev tswj hwm kom ntseeg tau tias cov nqaij zoo tshaj plaws.