Abstract
Hauv cov khoom noj aerated xws li ncuav mog qab zib, tsis yog -cov mis nyuj whipped cream, thiab nplawm toppings, qhov ruaj khov ntawm cov qauv ua npuas ncauj ncaj qha txiav txim plaub qhov ntsuas qhov zoo ntawm qhov ntim, crumb fineness, sawv ntsug-nce khov, thiab txee lub neej. Lactic acid esters ntawm mono- thiab diglycerides ntawm fatty acids (LACTEM, E472b), raws li tus tswv cuab ntawm E472 series organic acid monoglycerides nrog rau qhov zoo tshaj plaws aeration kev ua tau zoo, tsim ib tug ntom thiab elastic interfacial zaj duab xis ntawm cov pa roj-kua sib cuam tshuam los ntawm kev tsim txiaj ntawm kev sib npaug ntawm cov kua qaub thaum lub sij hawm sib npaug ntawm cov kua qaub. Ib txhij ua haujlwm sib koom ua ke nrog gluten proteins thiab amylose, ua rau nws hloov tsis tau "ua npuas ncauj stabilization tswv" hauv cov khoom noj aerated. Kab lus no tau txheeb xyuas, los ntawm peb qhov loj me ntawm cov qauv molecular, kev coj tus cwj pwm cuam tshuam, thiab cov txheej txheem ntawm kev ua haujlwm, cov txheej txheem ua npuas dej ruaj khov ntawm LACTEM nyob rau hauv ob pawg ntawm cov khoom noj aerated - ncuav mog qab zib thiab tsis yog -cov mis nyuj whipped cream- thiab muab cov txheej txheem kev lag luam thiab kev sib xyaw ua ke ntawm kev ua neej zoo, thiab muab cov kev daws teeb meem zoo rau lub neej. cov zaub mov aerated.
Lub Destiny ntawm Ua Npuas Ncauj: Vim li cas Aerated Foods Ib txwm sib tw tawm tsam lub sijhawm?
Xav txog lub ncuav mog qab zib zoo meej: tom qab nplawm tag nrho, ntau lab ntawm cov cua npuas zoo sib xws nyob rau hauv nws, txhua npuas qhwv rau hauv cov yeeb yaj kiab nyias nyias, tag nrho lub teeb ci, airy, thiab tag nrho ntawm qhov tseem ceeb. Lub xeev no sawv cev rau tag nrho kev cia siab rau lub ncuav mog qab zib lub ntim, crumb fineness, thiab soft mouthfeel.
Tseem txij lub sijhawm no mus, qhov pom tsis tau "countdown" pib.
Cov npuas tsis ruaj khov. Cov kev cai ntawm physics hais tias lawv ib txwm nyiam mus rau kev ploj tuag los ntawm peb txoj hauv kev. Thawj yog qhov tsis sib xws (Ostwald ripening): vim tias lub siab sab hauv yog siab dua hauv cov npuas me, cov pa roj molecules diffuse los ntawm cov kua zaj duab xis mus rau cov npuas loj, ua rau cov npuas loj loj dua thaum cov npuas me me maj mam ploj mus. Qhov thib ob yog coalescence: cov kua zaj duab xis ntawm cov npuas uas nyob ib sab thins thiab ruptures, merging ob npuas rau hauv ib qho. Qhov thib peb yog cov kua dej: nyob rau hauv lub zog ntawm lub ntiajteb txawj nqus, cov kua hauv npuas zaj duab xis ntws mus rau hauv qab, zaj duab xis yuav thinner thiab thinner, thiab thaum kawg ruptures.
Kev sib xyaw ua ke ntawm peb txoj kev ua kom tsis ruaj khov no txhais tau hais tias ncuav mog qab zib batter yuav "deflate" yog tias sab laug rau lub sijhawm luv luv tom qab sib tov, ua rau cov khoom tiav ntawm cov ntim me me thiab ntom ntom ntom. Tsis yog-cov whipped cream maj mam poob, quaj, thiab ua ntxhib thaum khaws cia.Leej twg tuaj yeem ruaj khov ua npuas dej tuav tus yuam sij rau qhov zoo ntawm cov khoom noj aerated.
Lub Molecular Code ntawm LACTEM: Dab tsi Ua Nws Tus Kws Tshaj Lij Aeration?
Hauv E472 series organic acid monoglyceride tsev neeg, LACTEM tuav txoj haujlwm tshwj xeeb heev. Cov tswv cuab ntawm tsev neeg no koom nrog cov pob txha zoo sib xws -tag nrho raws li monoglycerides (glycerol + ib fatty acid saws)- sib txawv tsuas yog hauv pawg organic acid qhia. Txawm li cas los xij nws yog qhov sib txawv me me hauv "organic acid pawg" uas txiav txim siab txhua tus tswvcuab qhov sib txawv ntawm kev ua haujlwm.
ACETEM (E472a) qhia txog pawg acetyl (–OCOCH₃). Cov pab pawg no yog me me hauv ntim thiab tsis muaj zog hauv polarity, thaiv ib qho hydrophilic hydroxyl ntawm glycerol qaum thiab ua rau cov molecule raws li tag nrho lipophilic (HLB tus nqi poob rau 2-3). ACETEM muaj peev xwm txheej zoo heev thiab -crystalline stabilizing muaj peev xwm los ntawm kev tsim txiaj ntawm nws cov lipophilicity muaj zog.
CITREM (E472c) qhia txog ib pawg citric acid, muaj peb pawg carboxyl thiab ib pawg hydroxyl. Nws yog qhov tsis tshua muaj polar thiab nqa cov nqi tsis zoo, muab cov molecule ua haujlwm triple ntawm emulsification, chelation, thiab antioxidant synergism ib txhij.
LACTEM (E472b), txawm li cas los xij, qhia txog pawg lactic acid uas tshwm sim los ntawm qhov "golden balance point" ntawm pawg acetyl thiab citric acid pawg. Lactic acid tsuas muaj ib pawg carboxyl thiab ib pab pawg hydroxyl, nrog cov polarity nruab nrab-tsis muaj kev ncaj ncees rau cov rog thiab roj zoo li ACETEM, thiab tsis muaj kev ncaj ncees kiag li mus rau theem aqueous zoo li CITREM. Qhov no "tsuas yog" polarity endows LACTEM nrog tus cwj pwm sib cuam tshuam tshwj xeeb: kev sib raug zoo rau ob qho tib si roj theem thiab theem aqueous, thiab muaj peev xwm los tsim cov yeeb yaj kiab tsis tau elastic.
Nws yog qhov tseeb ntawm qhov kev ua haujlwm sib luag sib luag uas ua rau LACTEM yog qhov ua tau zoo tshaj plaws hauv kev ua haujlwm hauv E472 series, hais txog kev ua haujlwm ntawm adsorption ntawm cov pa roj-kua interface, interfacial zaj duab xis lub zog, thiab ua npuas dej ruaj khov durability.
Hauv Cov Ncuav Qab Zib: Tag Nrho - Txheej Txheem Ua Npuas Ncauj Tiv Thaiv los ntawm Batter mus rau cov khoom tiav
1.The Whipping Stage: "Tsim" Npuas
Lub whipping ntawm ncuav mog qab zib batter yog cov kauj ruam tseem ceeb ntawm tag nrho cov txheej txheem ntau lawm. Nyob rau theem no, LACTEM molecules sai sai adsorb rau ntawm qhov chaw ntawm cov npuas npuas tsim tawm thaum whipping. Lawv cov lactic acid pawg taw qhia mus rau theem aqueous, thiab lawv cov fatty acid tails taw qhia mus rau theem roj, tsim ib txheej tuab monomolecular adsorbed.
LACTEM ua ob txoj haujlwm tseem ceeb nyob rau theem no: txo qhov nro ntawm kev sib tshuam -LACTEM txo qis qhov nro ntawm cov dej theem los ntawm kwv yees li 72 mN / m txog li 30-40 mN / m, txo qis lub zog xav tau los tsim cov npuas tshiab thaum whipping, ua npuas tsim tau yooj yim dua thiab zoo ib yam; thiab inhibiting npuas coalescence-interfacial zaj duab xis tsim los ntawm LACTEM muaj ib tug siab viscoelastic modulus, thiab thaum ob npuas mus rau ib leeg, LACTEM molecules sai replenish lub interfacial concentration nyob rau hauv lub cheeb tsam ntawm kev sib cuag los ntawm lub Marangoni nyhuv (interfacial kho uas tsav los ntawm interfacial nro rupture gradients .),
Kev tshawb fawb pom tau tias thaum LACTEM ntxiv ntawm 0.1% - 0.5% ntawm hmoov nplej, lub peev xwm aeration thiab ua npuas ncauj ruaj khov ntawm ncuav mog qab zib batter tau txhim kho zoo. Piv nrog rau pab pawg tswj tsis tau ntxiv emulsifier, batter uas muaj LACTEM nce hauv ntim los ntawm 15% -25% tom qab nplawm thiab khaws cia ntau dua 90% ntawm nws thawj ntim tom qab sawv rau 30 feeb.
2 Theem Baking: "Supporter" ntawm Cov Qauv Txheej Txheem
Thaum lub batter nkag mus rau hauv qhov cub, qhov kub thiab txias nce sai heev. Cov npuas npuas nthuav dav nrog cua sov, thiab cov dej vapor evaporates los ntawm cov theem aqueous ntawm cov batter mus rau sab hauv ntawm cov npuas, ntxiv rau kev loj hlob ntawm npuas ntim. Qhov kev sib tw nyob rau theem no yog seb lub gluten network thiab starch matrix tuaj yeem tswj hwm kev ncaj ncees nyob rau hauv qhov kev ntxhov siab ntawm npuas nthuav dav.
LACTEM muab cov qauv kev txhawb nqa rau npuas los ntawm ob lub tshuab. Ua ntej, LACTEM tsim cov tsis yog -covalent cov koom haum nrog cov cheeb tsam hydrophobic ntawm gluten proteins, pab cov protein molecular chains tuav ib qho kev txiav txim crosslinked qauv thaum thermal unfolding, yog li txhim kho elasticity ntawm gluten network ntawm qhov kub thiab txias. Thib ob, LACTEM tuaj yeem tsim helical inclusion complexes nrog amylose, retarding ntau cov hmoov txhuv nplej siab gelatinization thaum lub sij hawm siab -kub ci theem thiab ua kom cov hmoov txhuv nplej siab los tswj cov viscosity tsim nyog thiab kev txhawb nqa thaum lub sij hawm nthuav dav npuas.
Qhov no "gluten{0}} starch" dual-kev sib koom ua ke ntawm LACTEM ua rau lub ncuav mog qab zib tuaj yeem tiv taus qhov kev ntxhov siab ntawm npuas nthuav dav thaum ci yam tsis muaj kev sib tsoo, thaum kawg ua tiav tag nrho ntim thiab cov qauv sib xws.
3 The Cooling and Storage Stage: "Retarder" ntawm Retrogradation
Thaum lub sijhawm txias ntawm lub ncuav mog qab zib rau hauv chav tsev kub tom qab ci, gelatinized amylose pib rov ua dua thiab crystallize, ua rau lub ncuav mog qab zib ua kom tawv thiab qhuav. LACTEM tseem ua haujlwm nyob rau theem no-cov helical suav nrog cov complexes tsim ntawm nws cov fatty acid tails thiab amylose nyob ruaj khov tom qab txias, tiv thaiv cov recrystallization ntawm amylose molecules.
Piv nrog rau DMG (E471, sau tseg rau cov hmoov txhuv nplej siab), LACTEM cov hmoov txhuv nplej siab los tiv thaiv -staling nyhuv hauv cov ncuav yog me ntsis hais, tab sis nws lub peev xwm aeration stabilization yog qhov zoo tshaj. Nyob rau hauv daim ntawv thov ncuav mog qab zib, LACTEM feem ntau yog siv synergistically nrog DMG-LACTEM tuav whipping aeration thiab ua npuas ncauj stabilization, thaum DMG tuav cov hmoov txhuv nplej siab los tiv thaiv-staling thaum lub sij hawm ncej- ci theem, txhua pab txhawb nws lub zog.
Hauv Tsis yog-Cov Khoom Noj Qab Haus Huv: Qhov kawg ntawm Kev Ua Npuas Ncauj Kev Ruaj Ntseg
1 Qhov Kev Sib Tw Ua Npuas Ncauj ntawm Tsis yog-Cov Khoom Noj Qab Haus Huv
Tsis yog- mis nyuj nplawm yog ib yam O/W emulsion- ua npuas ncauj ua ke. Nws cov txiaj ntsig zoo tseem ceeb suav nrog tus nqi nthuav dav, sawv ntsug- nce nruj, zoo, thiab ruaj khov. Tsis zoo li ncuav mog qab zib batter, tsis yog -cov mis nyuj whipped cream feem ntau yuav tsum tau cia nyob rau hauv lub tub yees (4 degree) rau ob peb hnub los yog txawm lub lis piam, muab ntau dua xav tau ntawm ua npuas ncauj durability thiab vauv tsis kam tshaj cov ncuav mog qab zib.
2 Interfacial Film Tsim los ntawm LACTEM
Thaum lub sij hawm whipping theem ntawm tsis yog - mis nyuj whipped cream, LACTEM molecules adsorb ntawm cov pa roj- kua interface, tsim ib tug ntom thiab elastic monomolecular zaj duab xis. Lawv pab pawg lactic acid txuas mus rau theem aqueous, tsim hydrogen daim ntawv cog lus nrog cov dej molecules thiab tsim kom muaj txheej txheej hydration tuab; cov fatty acid tails ntim ze, tswj kev ncaj ncees ntawm interfacial zaj duab xis los ntawm kev sib cuam tshuam hydrophobic.
The key to LACTEM's formation of a dense interfacial film in non-dairy whipped cream lies in this: the moderate polarity of the lactic acid group ensures that it is neither biased toward the aqueous phase (which would loosen the interfacial film) nor biased toward the oil phase (which would allow oil droplets to penetrate the film and disrupt the foam), precisely occupying lub optimum interfacial lub xeev yuav tsum tau rau ruaj khov ua npuas ncauj tsim. Kev tshawb fawb qhia tias ua npuas ncauj ib nrab-lub neej ntawm tsis yog- cov mis nyuj whipped cream nrog ntxiv LACTEM yog txuas ntxiv los ntawm 50% -80% piv nrog pab pawg tswj tsis tau ntxiv emulsifier.
3 Synergistic Enhancement nrog DMG
Hauv kev lag luam uas tsis yog- cov mis nyuj whipped cream formulations, LACTEM feem ntau yog siv synergistically nrog DMG. DMG muab lub zog emulsifying yooj yim thiab rog siv lead ua network tsim ua haujlwm ua haujlwm- cov roj siv lead ua pov tseg txheej tsim los ntawm DMG ntawm cov roj- dej interface muab lub cev pob txha txhawb nqa rau cov npuas dej. LACTEM muab qhov zoo tshaj plaws aeration thiab foaming peev xwm nrog rau cov yeeb yaj kiab interfacial elasticity, ua rau cov npuas dej kom ruaj khov thaum lub sijhawm khaws cia.
Lub synergistic mechanism ntawm ob: DMG tsim ib tug rog siv lead ua pob txha pob txha, LACTEM nyob rau hauv interstitial qhov chaw ntawm lub skeleton thiab tsim ib tug elastic interfacial zaj duab xis, ua ke tsim ib tug dual - txheej stabilizing qauv ntawm "nyuaj skeleton + soft interface." Cov ntaub ntawv tshawb fawb qhia tias LACTEM + DMG ua ke ua ke tuaj yeem txuas ntxiv ua npuas dej ib nrab- lub neej tsis yog- cov khoom siv mis nyuj whipped cream los ntawm 30% -50%, thiab cov khoom tuaj yeem khaws tau ntau dua 90% ntawm nws thawj zaug sawv ntsug-nce khov tom qab 7 hnub ntawm kev cia nyob rau hauv lub tub yees ntawm 4 degree. Nyob rau hauv daim ntawv thov ncuav mog qab zib gel, LACTEM, DMG, Span60, PGMS, thiab lwm yam emulsifiers siv synergistically ho txhim khu lub ncuav mog qab zib ntim thiab kev ntxhib los mos.
Industrial Formulation Solutions
1 Pom zoo noj LACTEM
| Hom Aerated Food | Pom zoo LACTEM Ntxiv | Core Function |
|---|---|---|
| Daim txhuam cev ncuav mog qab zib | 0.3% - 0.6% ntawm hmoov nplej | Aeration thiab foaming, ntim nce, nplua crumb |
| Butter ncuav mog qab zib / Muffin | 0.2% - 0.5% ntawm hmoov nplej | Aeration, rog stabilization, tiv thaiv -seepage |
| Tsis yog- mis nyuj whipped cream | 0.2%–0.4% | Ua npuas ncauj stabilization, ruaj khov -nce khov, tiv thaiv- tsoo |
| Whipped topping | 0.3%–0.5% | Aeration, zoo ua npuas ncauj, cia stability |
2 Kev sib xyaw cov tswv yim nrog lwm cov emulsifiers
LACTEM + DMG (kev sib xyaw ua ke rau cov tsis yog-cov mis nyuj whipped cream thiab ncuav mog qab zib):LACTEM muab qhov zoo tshaj plaws aeration thiab foaming muaj peev xwm thiab ua npuas ncauj ruaj khov, thaum DMG muab cov yooj yim emulsifying lub zog thiab hmoov txhuv nplej siab los tiv thaiv -staling functionality. Qhov ob, thaum sib xyaw ntawm qhov sib piv ntawm kwv yees li 1: 1-1: 2, tuaj yeem sib koom ua ke txhim kho tus nqi nthuav dav, sawv ntsug- nce nruj, thiab txee lub neej yam tsis tas yuav nce qib ntxiv.
LACTEM + PGMS + DMG (cov ncuav mog qab zib gel ua ke):PGMS, nrog nws lub zog aeration thiab foaming peev xwm (HLB tsis tshua muaj nqi, kwv yees li 3.5), muab qhov pib aeration impetus rau ncuav mog qab zib batter; LACTEM, nrog nws cov kev ua haujlwm sib luag ntawm lub ntsej muag, stabilizes npuas; DMG muab qhov yooj yim emulsification. Ua ke, peb lub Cheebtsam tsim kom tiav cov saw hlau los ntawm "sai aeration → foam stabilization → structural support."
3 Cov Lus Qhia Tseem Ceeb
LACTEM yog insoluble hauv dej txias. Nws raug nquahu kom ua ntej - tawg LACTEM hauv dej sov (kwv yees li 60 degree) los ua ib qho muab tshuaj txhuam ua ntej siv, lossis kom yaj nws ua ke nrog roj kub lossis roj ua ntej sib xyaw nrog lwm cov khoom xyaw. Hauv cov qauv uas tsis yog-cov mis nyuj whipped cream, LACTEM yuav tsum tau ntxiv rau lub sijhawm aqueous lossis cov roj theem ua ntej homogenization kom paub meej sib xyaw nrog lwm cov emulsifiers thiab adsorption ntawm cov roj- dej interface thaum lub sij hawm homogenization.
Xaus
LACTEM, los ntawm kev tsim txiaj ntawm qhov nruab nrab polarity thiab sib npaug ntawm kev ua haujlwm ntawm nws pawg lactic acid, qhov txawv ntawm nws tus kheej hauv E472 series organic acid monoglyceride tsev neeg raws li qhov tsis muaj kev sib cav "ua npuas ncauj stabilization tswv" hauv thaj chaw ntawm cov khoom noj aerated. Hauv cov khoom qab zib, nws tiv thaiv cov qauv ua npuas ncauj thoob plaws hauv tag nrho cov txheej txheem -los ntawm nplawm aeration thiab ci nthuav mus rau qhov txias thiab khaws cia- ua kom lub ncuav mog qab zib ua kom tiav tag nrho ntim thiab nplua nplua. Nyob rau hauv tsis yog - mis nyuj whipped cream, nws thawb ua npuas ncauj stability rau qhov txwv nrog nws zoo heev interfacial zaj duab xis elasticity thiab ua npuas ncauj durability.
Synergistic ua ke nrog emulsifiers xws li DMG thiab PGMS txuas ntxiv qhov tob ntawm LACTEM daim ntawv thov hauv cov khoom noj aerated. Rau kev lag luam ci kev lag luam nrhiav cov khoom lag luam zoo txhim kho thiab lub neej txee txuas ntxiv, LACTEM yog ib qho tseem ceeb ntawm cov khoom siv ua haujlwm.
