Moqapi oa liteko
Lisebelisoa tsa tlhahlobo: lebese le lecha,xylo-oligosaccharides, Lactobacillus bulgaricus (Lb), Streptococcus thermophilus (St).
Ts'ebetso ea khatello: Kenya Lactobacillus bulgaricus le Streptococcus thermophilus ka lebeseng la skim ka makhetlo a mararo ho fihlela ts'ebetso ea tsona e tsitsitse (ho ea ka tlhahlobo ea microscopic le lebese la curdled), ebe u li boloka ka sehatsetsing hore li sebelisoe hamorao. Mokhoa oa teko: Lokisetsa litekanyo tse 21 tse lekanang tsa lisampole tsa lebese tse foreshe ebe u li arola ka lihlopha tse 3, ka lisampole tse 7 sehlopheng ka seng. Kenya likhakanyo (%, w/v) tsa 0, 0.5, 0.6, 0.7, 0.8 ho lisampole tsa sehlopha ka seng. , 0.9 le 1.0 xylo-oligosaccharides, 'me u kopanye Lb le St ka tekanyo ea 2: 1, 1: 1, le 1: 2 ka ho latellana ho etsa setso sa ho qala, ebe u kenya lihlopha tse 3 tse nang le ente ea 3%. Belisa ka mocheso o sa feleng oa 42°C, 'me u nke lisampole ka linako tse ling ho lekanya palo ea libaktheria tse phelang, boleng ba pH, acidity le lactic acid content sehlopheng ka seng sa lebese.
liphetho tsa liteko
(1) Lb: St = 2: 1, phello ea xylo-oligosaccharides kholong le tlhahiso ea asiti ea mefuta ea fermentation ea yoghurt.
Joalokaha ho ka bonoa ho Setšoantšo sa 1, 0 ho ea ho 1.5 h ke nako ea ho ikamahanya le maemo a khatello le mohato oa pele oa ho kena karolong ea kholo ea logarithmic. Sehlahisoa ha se hole ka potlako, boleng ba pH bo fokotseha butle, 'me acidity le lactic acid li eketseha ka potlako. Ha mahloriso a xylo-oligosaccharide e le 0.7%, kakaretso ea libaktheria Boleng bo phahameng ke 1.94×108 CFU/mL (taolo ke 1.15×108 CFU/mL), le pH, acidity le lactic acid content li tšoana le taolo; pakeng tsa 1.5 h le 3.5 h, khatello e kena karolong ea kholo ea logarithmic 'me e hōla ka potlako. PH e ile ea theoha ka potlako, 'me acidity le lactic acid content ea eketseha ka potlako. Ha mahloriso a xylo-oligosaccharide e ne e le 0.7%, palo e felletseng ea libaktheria e ne e le 5.65.×108 CFU/mL (taolo e ne e le 5.41×108 CFU/mL). PH, acidity, le lactic acid content E ne e le 5.82, 63 le 4.93 ka ho latellana, 'me pH, acidity le lactic acid content ea taolo e ne e le 6.05, 56 le 4.67. Ho tloha ho lihora tse 3.5 ho isa ho 4.5, palo eohle ea baktheria e fokotsehile, pH ea theoha butle, 'me acidity le lactic acid e eketseha butle.
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Nako ea poso: Nov-14-2023
