Stevia yog lub npe generic thiab npog thaj tsam dav ntawm cov nroj tsuag mus rau extract.

Feem ntau, purified Stevia nplooj extract muaj 95% lossis ntau dua purity ntawm SGs, raws li tau hais hauv kev tshuaj xyuas kev nyab xeeb los ntawm JEFCA xyoo 2008, uas tau txhawb nqa los ntawm ntau lub koom haum tswj hwm suav nrog FDA thiab European Commission.JEFCA (2010) pom zoo cuaj SGs suav nrog stevioside, rebaudiosides (A, B, C, D, thiab F), steviolbioside, rubososide, thiab dulcoside A.

Ntawm qhov tod tes, European Food Safety Authority (EFSA) tau tshaj tawm tsab ntawv E uas tau xaiv rau SG raws li E960 hauv 2010. E960 tam sim no siv rau kev qhia tshwj xeeb ntawm cov khoom noj khoom haus hauv EU thiab txhua qhov kev npaj uas muaj SGs tsis tsawg dua 95% purity ntawm 10 (ib qho ntxiv SG saum toj no yog Reb E) ntawm lub hauv paus qhuav.Cov kev cai ntxiv qhia txog kev siv stevioside thiab / lossis rebaudioside npaj ntau npaum li ntawm 75% qib lossis ntau dua.

Hauv Suav teb, Stevia extract tau tswj hwm raws li cov qauv ntawm GB2760-2014 steviol glycoside, nws tau hais tias ntau cov khoom tuaj yeem siv stevia txog li 10g / kg rau tshuaj yej cov khoom, thiab ntau npaum li cas rau Flavored fermented mis nyuj ntawm 0.2g / kg, nws kuj tuaj yeem siv rau hauv cov khoom hauv qab no: Cov txiv hmab txiv ntoo, Khoom noj khoom haus / kib txiv ntoo thiab cov noob, Khoom qab zib, Jelly, seasoning thiab lwm yam,

Ntau lub koom haum tswj hwm suav nrog Pawg Saib Xyuas Kev Tshawb Fawb Txog Khoom Noj Khoom Noj ntawm xyoo 1984 thiab 1999, JEFCA xyoo 2000–10, thiab EFSA (2010–15) tau xaiv SGs ua cov khoom qab zib, thiab ob lub koom haum kawg tau tshaj tawm cov lus pom zoo rau kev siv SGs li 4. mg / kg lub cev raws li kev noj haus txhua hnub rau ib tus neeg hauv ib hnub.Rebaudioside M nrog tsawg kawg yog 95% purity kuj tau pom zoo hauv 2014 los ntawm FDA (Prakash thiab Chaturvedula, 2016).Txawm hais tias muaj keeb kwm ntev ntawm S. rebaudiana hauv Nyiv thiab Paraguay, ntau lub teb chaws tau lees txais Stevia ua cov khoom noj ntxiv tom qab suav nrog kev xav txog kev noj qab haus huv sib txawv (Table 4.2).