Hauv tag nrho cov voj voog ua noj ua haus thiab ncig, oxidation cov tshuaj tiv thaiv yog qhov ua rau muaj kev nyab xeeb thiab muaj kev nyab xeeb kev nyab xeeb. Tshwj xeeb tshaj yog nyob rau hauv cov zaub mov nplua nuj hauv cov rog, protein lossis cov xim tsis zoo, hnov tsw, tsis hnov tsw, tsis hnov qab yog cuam tshuam rau cov neeg siv khoom thiab hom duab.
Raws li "tsis pom kev tab sis kev tiv thaiv" tiv thaiv tau dav hauv kev lag luam khoom noj kom txuas ntxiv rau lub txee ua kom ntev dua thiab tsis muaj kev sib zog. Rau cov khoom noj khoom haus khoom noj khoom haus, mastering tshwj xeeb mechanism ntawm kev ua thiab cov tswv yim ntawm cov khoom noj muaj txiaj ntsig zoo dua muab cov ntaub ntawv txhawb kev tshawb fawb thiab cov mis txhawb nqa.
1. Peb cov haujlwm tseem ceeb ntawm Antioxidants
1. Lub Txiaj Ntsig Lub Neej
Antioxidants zoo ncua kev ua tsis zoo xws li cov zaub mov tseem ceeb xws li thaiv cov zaub mov tseem ceeb, thiab lwm yam kev ruaj ntseg.
2. Tswj xim thiab tsw
Qee cov tshuaj tua kab mob antioxidants tuaj yeem tiv thaiv qee yam xws li enzymatic brown thiab hlau los ntawm kev hloov xim lossis saj thiab ceev tus pom kev zoo ntawm cov khoom.
3. Inhibit roj rancidity thiab tsw
Roj - Cov khoom noj nplua nuj xws li cov roj zaub, cov txiv ntoo, thiab cov qos yaj ywm muaj peev xwm tsim cov ntxhiab vim yog cov rog oxidation. Antioxidants tuaj yeem tiv thaiv cov roj los ntawm decomposing rau cov tshuaj uas muaj aldehydes thiab ketones, thiab tswj qhov kev pheej hmoo ntawm cov ntxhiab tsw thiab kev noj nyiaj dawb.
2. Raug daim ntawv thov cov xwm txheej thiab cov hom tshuaj tiv thaiv kab mob antioxidant
1. Cov roj zaub thiab roj - muaj cov khoom noj
Teeb meem: oxidation yooj yim thiab rancidity, tsim cov ntxhiab tsw thiab kev sib deev
Pom zoo antioxidants:
Synthetic: TBHQ, BHA, BHT
Natural: Vitamin E, Tshuaj yej polyphenols, Rosemary Extract
Cov khoom lag luam cov khoom lag luam: Ua noj ua haus, neeg rau, qos yaj ywm chips, cereal tuav, mayonnaise
2. Nqaij khoom thiab cov zaub mov siav
Cov teeb meem: Dagening ntawm nqaij cov xim, fatty acid rancidity, tsw detoration
Pom zoo antioxidants:
Natural: sodium ascorbate (sodium vitamin c), sodium phytate
Kev siv sib xyaw: sib xyaw ua ke nrog dej tswj cov neeg sawv cev thiab cov tshuaj tiv thaiv kom tsim cov txheej txheem sib xyaw
Cov khoom lag luam cov khoom: Sausages, nqaij npua, npaj}}-}}}}}} noj cov nqaij siav
3. Cov Khoom Siv thiab Cov Ntsej Muag
Teeb meem: tsis muaj tsw, roj stratification, maub xim
Pom zoo antioxidants:
Roj -} Raws condiments (xws li chili roj): BHT + Citric acid
Soy sauce, compound sauce: vitamin C, sodium edta
Cov khoom lag luam cov khoom: Txiv laum huab xeeb butter, chili sauce, nqaij seaging ntses
4. Ci khoom noj txom ncauj thiab cov khoom qab zib
Teeb meem: pastry roj rov qab, roj rancidity, biscuit
Pom zoo antioxidants:
Ntuj: Vitamin E, Rosemary Extract
Synthetic: PG (Profyl Gallate)
Cov khoom lag luam cov khoom: cookies, puff pastry, ncuav mog qab zib premix
III. Ntuj vs. hluavtaws: Xaiv kev thov thiab kev lag luam sib
Project hluavtaws antioxidant ntuj antioxidant
Qhov Zoo Tsawg Tus Nqi Qes, Siab Antioxidant efficiency, zoo thermal ruaj ruaj kev nyab xeeb, "cov ntawv sau kom zoo" ua raws
Tus Sawv Cev Cov Khoom Siv BHA, BHT, TBHQ, PG Raucopherol (Vitamerol (Vitamin E), Tshuaj yej polyphenols, Rosemary Extract
Daim Ntawv Qhia Cov Lus Qhia Cov Khoom Noj Khoom Noj, Kev Ua Cov Roj Ua Kom Muaj Siab - zaub mov, organic / ntuj hom, export khoom
Nrog rau qhov kev thov nce zuj zus rau "Cov ntawv lo huv" los ntawm cov neeg siv khoom, kev ua lag luam yog ua ntau dua thiab muaj kev sib tw. Daim ntawv lo) thiab ntuj muaj cov khoom xyaw, ntau hom hloov mus rau kev siv cov tshuaj vitamin thiab lwm yam los txhim kho cov nyhuv, uas yog cov kev taw qhia tsim nyog ntawm cov neeg xa khoom.
Xaus: antioxidants yog cov ntsiab lus formula los xyuas kom cov zaub mov zoo
Txawm hais tias cov nqaij rancidity, browning ntawm nqaij khoom, lossis saj cov khoom noj txom ncauj thiab tsis ruaj khov, antioxidants yog ib txwm yog ib qho tseem ceeb hauv kev saib xyuas cov zaub mov zoo. Rau cov chaw muag khoom siv, muab cov ntsiab lus antioxidant nyob ib ncig ntawm cov khoom noj sib txawv
