Prebiotics in dairy dessert

1.nh hng ca Inulin v Oligofructose ln tnh cht lu bin v kh nng tn ti ca vi khun Probiotic trong sn phm Ice Cream t boVic b sung Oligofructose hoc inulin nh hng n tnh cht lu bin v s sng st ca Lactobacillus acidophilus v Bifidobacterium trong kem t bo c lu tr nhit -18C sau 90 ngy cho thy b sung Oligofructose hoc inulin lm tng ng k nht biu kin,lm tng xp, ci thin c tnh tan chy ca kem trong sut qu trnh bo qun,thi gian nh git ca kem s lu hn(tnh cht ny th hin r nt nht qua sn phm kem probiotic cha inulin),ng thi cu trc ca kem cng c ci thin r rt cho n cui qu trnh lu tr.Qu trnh ng kem c th lm gim ng k s tn ti ca vi khun Lactobacillus acidophilus v Bifidobacterium,qua nghin cu vic b sung Oligofructose hoc inulin ci thin c kh nng sng st ca 2 vi khun nyng dng chnh ca Inulin v Oligofructose c dung nh l cht n inh cu trc sn phm c bit l sn phm kem t boTheo kt qu mu kem probiotic c b sung Oligofructose hoc inulin (k hiu PO,PI) c gi tr pH thp hn mu kem ko cha probiotic hay mu kem probiotic nhng khng c Oligofructose hoc inulin (k hiu: R,P) l do inulin lm tng kh nng sng st ca vi khun probiotic trong mi trng kem lnh ng,gip probiotic tng kh nng trao i cht,sinh ra acid lactic lm gim pHMu kem kt hp gia probiotic vi Oligofructose hoc inulin c nht cao l do c s tng tc gia cc cht x vi thnh phn cht lng c trong kem probiotic, cht x nh l thnh phn thay th cht bo lm tng kh nng hp thu nc, do sn phm cha cht x s lm tng nht ,hn na inulin c phn t lng cao s lm tng nht do kh nng ht m v gi nc tt to cu trc mng gel Mu kem probiotic c b sung inulin hay Oligofructose lm tng sn chc ca kem v tng ng k trong qu trnh bo qun, sn chc ca mu inulin cao hn so vi mu Oligofructose l do chui inulin di hn,t b ha tan trong sa v c kh nng hnh thnh nn microcrystals inulin( tinh th tham gia to kt cu kem) do lm sn phm kem tr nn sn chc hn.Khi so snh vi mu i chng trong sut qu trnh bo qun,mu kem probiotic cha Oligofructose hoc inulin c tnh tan chy thp hn,nh vy vic b sung inulin hay Oligofructose vo kem probiotic gip ci thin tan chy ca kem. tan chy gim dn theo th t (R