Beta glucan hmoov muab tau los ntawm Oat yog ib hom polysaccharide tsis muaj hmoov nplej uas muaj nyob hauv cov xovtooj ntawm tes ntawm oat endosperm thiab aleurone txheej. Nws yog dej-soluble kev noj haus fiber ntau. Cov qauv yooj yim yog tsim ntawm D cov piam thaj txuas nrog β1-4, β1-3 glycosidic bonds. Txog kab polysaccharides, qhov sib piv ntawm ob daim ntawv glycosidic no yog kwv yees li 7: 3. Vim tias nws cov viscosity hinders kev zom thiab nqus tau cov hmoov txhuv nplej siab, protein thiab lwm yam khoom, nws tuaj yeem tsim qee yam muaj txiaj ntsig zoo rau lub cev ua rau tib neeg lub cev.
Cov txiaj ntsig kev noj qab haus huv ntawm oat beta-glucan
1. Cov roj (cholesterol) tsawg
Thaum ntxov li ntau xyoo, cov kws tshawb fawb tau tshawb pom tias oat gluc-glucan tuaj yeem txo qhov feem ntawm kev nqus ntawm cov roj ntsha hauv lub plab thiab plab hnyuv, thiab txo cov synthesis ntawm cov roj hauv lub cev. Raws li kev tshawb fawb txog oat beta glucan hmoov matures, cov kws tshawb fawb tau pom tias cov nyhuv ntawm oat gluc-glucan rau cov roj cholesterol yog qhov tseem ceeb txo cov roj (TC) thiab qis lipoprotein roj (LDI-TC) hauv ntshav. Tsis muaj kev cuam tshuam loj npaum li cas ntawm cov lipoprotein ntau (high-density lipoprotein (HDL) thiab triglyceride (TG).
Tam sim no muaj 3 lub tshuab kev ua haujlwm ntawm cov oat glucan los txo cov roj (cholesterol):
ShortQhov luv-cov saw fatty acids uas ua los ntawm kev kho ntawm oat gluc-glucan hauv lub cev tuaj yeem tiv thaiv 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMG-CoA), thiaj li txo cov synthesis ntawm cov cholesterol.
HighTxoj kev muaj viscosity siab, nws tuaj yeem qhwv cov kua tsib kua qaub thiab ua kom lub cev tshem tawm, thiab txhawb nqa cov kev ua rau cov cholesterol.
CanNws tuaj yeem ua qhov siab-viscosity ib puag ncig hauv cov hnyuv, uas tuaj yeem thaiv qhov kev nqus ntawm cov cholesterol hauv cov zaub mov.
2. Tswj ntshav qab zib cov ntshav
Oat gluc-glucan muaj cov txiaj ntsig ntawm kev tswj cov ntshav qab zib tom qab kawg. Qhov no yog vim tias oat gluc-glucan tsis yog cov tshuaj tsis qab ntxiag polysaccharide, tsis muaj calorie, cov suab thaj tsawg, thiab nws cov qauv fiber ntau tuaj yeem ncua kev nqus ntawm cov piam thaj thiab tso cov ntshav qab zib, uas tuaj yeem tswj tau ntshav qab zib. nyhuv. Rau cov neeg mob uas yuav tsum tau noj tshuaj insulin, oat beta-glucan ua tau zoo tshwj xeeb ntawm kev tswj ntshav qab zib. Hauv txoj kev tshawb nrhiav kev soj ntsuam tom qab muaj txiaj ntsig ntawm kev noj 5g oat gluc-glucan, piv nrog pab pawg tswj hwm, cov ntshav qabzib concentration ntawm 30 feeb tom qab noj mov tau txo los ntawm 19% (p< 0.005),="" thiab="" cov="" ntshav="" qabzib="" concentration="" ntawm="" 60="" feeb="" tau="" raug="" txo="" los="" ntawm="" 16%=""><>
3. Txhim kho cov hnyuv hauv plab
Cov kev tshawb fawb tau lees tias oat beta glucan hmoov tuaj yeem txo E. coli hauv cov quav thiab cov hnyuv thiab ua rau kom muaj cov lactobacilli ntau ntxiv. Nws tuaj yeem sau rau ntawm qhov kawg distal kawg ntawm txoj hnyuv los ua cov kab mob fatty acids uas luv (SCFA), uas tau nqus sai los ntawm lub plab hnyuv loj, thiab tswj cov kab mob hnyuv. Pab pawg neeg muaj nuj nqi, tuaj yeem siv los ua prebiotic rau tib neeg lub cev.
