Gelatin
Gelatinlos yog gelatine yog translucent, colourless, nkig (thaum qhuav), flavourless foodstuff, muab tau los ntawm collagen tau los ntawm ntau yam tsiaj los ntawm cov khoom.Nws yog siv los ua ib tug gelling tus neeg sawv cev nyob rau hauv cov khoom noj, kws, photography, thiab cosmetic manufacturing. Cov khoom muaj gelatin. los yog ua haujlwm zoo ib yam li hu ua gelatinous.GelatinNws yog ib qho irreversibly hydrolysed daim ntawv ntawm collagen.Nws muaj nyob rau hauv feem ntau gummy lollies li zoo li lwm yam khoom xws li marshmallows, gelatin khoom qab zib, thiab ib co ice cream, dip thiab yogurt.Household gelatin tuaj nyob rau hauv daim ntawv ntawm nplooj, granules, los yog hmoov. Cov hom tam sim no tuaj yeem muab ntxiv rau hauv cov zaub mov raws li lawv yog; Lwm tus yuav tsum tau soaked hauv dej ua ntej.
Kev sib xyaw thiab cov khoom
Gelatin yog sib xyaw ntawm peptides thiab cov proteins uas tsim los ntawm ib nrab hydrolysis ntawm collagen muab rho tawm ntawm daim tawv nqaij, pob txha, thiab cov ntaub so ntswg ntawm cov tsiaj xws li nyuj, nqaij qaib, npua, thiab ntses. tawg mus rau hauv ib daim ntawv uas rearranges yooj yim dua.Nws cov tshuaj muaj pes tsawg leeg yog, nyob rau hauv ntau yam, zoo ib yam li nws niam nws txiv collagen.Photographic thiab qib tshuaj ntawm gelatin feem ntau yog los ntawm nqaij nyuj pob txha.
Gelatin tsim cov kua dej khov thaum yaj hauv dej kub, uas teem rau lub gel ntawm qhov txias.Gelatin ntxiv ncaj qha rau cov dej txias tsis yaj zoo.Gelatin tseem soluble nyob rau hauv feem ntau cov polar solvents.Gelatin cov ntsiab lus qhia viscoelastic flow thiab streaming birefringence.Cov solubility ntawm cov gelatin yog txiav txim los ntawm cov txheej txheem ntawm manufacturing. Feem ntau, gelatin yuav dispersed nyob rau hauv ib tug kuj concentrated acid.Cov dispersions yog ruaj khov rau 1015 hnub nrog me me los yog tsis muaj tshuaj hloov thiab yog haum rau txheej lub hom phiaj los yog rau extrusion mus rau hauv ib tug precipitating da dej.
Cov khoom siv hluav taws xob ntawm gelatin gels yog qhov hloov pauv ntawm qhov kub thiab txias, yav dhau los thermal keeb kwm ntawm cov gel, thiab lub sijhawm.Cov gels no muaj nyob ntawm qhov kub me me, qhov txwv sab sauv yog qhov taw qhia ntawm cov gel, uas nyob ntawm qib gelatin. thiab concentration (tab sis feem ntau yog tsawg dua 35 °c) thiab qis qis qis ntawm qhov chaw khov ntawm cov dej khov crystallizes.Lub melting point yog qis dua tib neeg lub cev kub, ib qho tseem ceeb rau qhov ncauj qhov ncauj ntawm cov khoom noj uas tsim nrog gelatin.Cov viscosity ntawm Cov gelatin / dej sib tov yog qhov loj tshaj plaws thaum lub gelatin concentration siab thiab qhov sib tov yog khaws cia txias (4 ° c).Lub zog gel yog quantified siv lub paj kuaj.
| Yam khoom | Txuj |
| Qhov tshwm sim | Yellow lossis yellowish granular |
| Jelly zog (6.67%, paj) | 270 +/- 10 |
| Viscosity (6.67%, mPa.s) | 3.5-5.5 Nws |
| Moisture (%) | ≤ 15 |
| Tshauv (%) | ≤ 2.0 |
| Pob tshab (5%, mm) | ≥400 |
| pH (1%) | 4.5-6.5 Nws |
| SO2 (%) | ≤ 50 mg / kg |
| Insoluble khoom (%) | ≤ 0.1 |
| Lead (Pb) | ≤ 2 mg / kg |
| Arsenic (As) | ≤ 1 mg / kg |
| Chromium (Cr) | ≤ 2 mg / kg |
| Cov hlau hnyav (raws li Pb) | ≤ 50 mg / kg |
| Tag nrho cov kab mob | ≤ 1000 cfu / g |
| E.coli / 10g | Tsis zoo |
| Salmonella / 25g | Tsis zoo |
| Paticle loj | Raws li xav tau |
Cia: nyob rau hauv qhuav, txias, thiab ntxoov ntxoo nrog thawj ntim, tsis txhob ya raws, khaws cia ntawm chav tsev kub.
Txee lub neejib: 48oy
Pob: hauv25kg / hnab
kev xa khoom:ces
1. Koj cov nqe lus them nqi yog dab tsi?
T / T lossis L / C.
2. Koj lub sijhawm xa khoom yog dab tsi?
Feem ntau peb yuav npaj cov khoom xa tuaj hauv 7-15 hnub.
3. Yuav ua li cas txog kev ntim khoom?
Feem ntau peb muab cov ntim raws li 25 kg / hnab lossis thawv.Tau kawg, yog tias koj muaj cov cai tshwj xeeb rau lawv, peb yuav ua raws li koj.
4. Yuav ua li cas txog qhov siv tau ntawm cov khoom?
Raws li cov khoom koj xaj.
5. Koj muab cov ntaub ntawv dab tsi?
Feem ntau, peb muab Commerical Invoice, Packing List, Bill of loading, COA, Health certificate thiab Origin certificate.Yog tias koj lub lag luam muaj cov kev cai tshwj xeeb, qhia rau peb paub.
6. Qhov chaw nres nkoj yog dab tsi?
Feem ntau yog Shanghai, Qingdao lossis Tianjin.
