Nnwale imewe
Ihe nnwale: mmiri ara ehi ọhụrụ,xylo-oligosaccharides, Lactobacillus bulgaricus (Lb), Streptococcus thermophilus (St).
Mgbalite eriri: Tinye Lactobacillus bulgaricus na Streptococcus thermophilus n'ime mmiri ara ehi na-ekpo ọkụ ugboro atọ ruo mgbe ọrụ ha kwụsiri ike (nyochaa nyocha microscopic na mmiri ara ehi a chịkọtara), wee chekwaa ha n'ime friji maka iji mee ihe. Usoro nnwale: Kwadebe 21 nha nha nke ụdị mmiri ara ehi ọhụrụ wee kewaa ha n'ime otu atọ, yana nlele 7 n'otu ọ bụla. Tinye mkpokọta (%, w/v) nke 0, 0.5, 0.6, 0.7, 0.8 na nlele n'ime otu ọ bụla. , 0.9 na 1.0 xylo-oligosaccharides, na mix Lb na St na nha nke 2: 1, 1: 1, na 1: 2 n'otu n'otu iji mee omenala mmalite, wee tinye n'ime ìgwè 3 na ntinye ego nke 3%. Ferment na okpomọkụ nke 42 mgbe niileCelsiusC, ma were nlele n'oge oge iji tụọ ọnụọgụ nje bacteria nwere ike ime, uru pH, acidity na ọdịnaya lactic acid n'ime otu mmiri ara ehi ọ bụla.
nsonaazụ ule
(1) Lb: St = 2: 1, mmetụta nke xylo-oligosaccharides na uto na mmepụta acid nke yogọt gbaa ụka.
Dị ka a na-ahụ site na eserese 1, 0 ruo 1.5 h bụ oge ngbanwe nke nsogbu ahụ na mmalite nke ịbanye n'oge uto logarithmic. Ụdị ahụ anaghị eto ngwa ngwa, uru pH na-ebelata nwayọọ nwayọọ, acidity na lactic acid na-abawanye ngwa ngwa. Mgbe mkpokọta xylo-oligosaccharide bụ 0.7%, ngụkọta nje bacteria kacha uru bụ 1.94×108 CFU / ml (nchịkwa bụ 1.15×108 CFU / mL), na pH, acidity na ọdịnaya lactic acid yiri njikwa; n'etiti awa 1.5 na awa 3.5, nsogbu ahụ na-abanye n'oge uto logarithmic ma na-eto ngwa ngwa. pH dara ngwa ngwa, acidity na ọdịnaya lactic acid mụbara ngwa ngwa. Mgbe mkpokọta xylo-oligosaccharide bụ 0.7%, ọnụọgụ nje kachasị elu bụ 5.65.×108 CFU/ml (nchịkwa ahụ bụ 5.41×108 CFU / ml). PH, acidity, na lactic acid ọdịnaya Ha bụ 5.82, 63 na 4.93 n'otu n'otu, na pH, acidity na lactic acid ọdịnaya nke njikwa bụ 6.05, 56 na 4.67. Site na awa 3.5 ruo awa 4.5, ngụkọta nje bacteria na-ebelata, pH ji nwayọọ nwayọọ daa, na acidity na lactic acid na-abawanye nwayọọ nwayọọ.
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Oge nzipu: Nov-14-2023
