کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4368719 | 1616674 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Use of lactulose as prebiotic and its influence on the growth, acidification profile and viable counts of different probiotics in fermented skim milk Use of lactulose as prebiotic and its influence on the growth, acidification profile and viable counts of different probiotics in fermented skim milk](/preview/png/4368719.png)
Lactulose can be considered as a prebiotic, which is able to stimulate healthy intestinal microflora. In the present work, the use of this ingredient in fermented milk improved quality of skim milk fermented by Lactobacillus acidophilus, Lactobacillus rhamnosus, Lactobacillus bulgaricus and Bifidobacterium lactis in co-culture with Streptococcus thermophilus. Compared to control fermentations without lactulose, the addition of such a prebiotic in skim milk increased the counts of all probiotics, with particular concern to B. lactis (bifidogenic effect), the acidification rate and the lactic acid acidity, and concurrently reduced the time to complete fermentation (tpH4.5) and the pH at the end of cold storage for 1 to 35 days.
Research Highlights
► Lactulose behaved as a prebiotic.
► It improved quality and shelf-life of skim milk fermented by probiotic co-cultures.
► Lactulose increased the counts of all probiotics and had a bifidogenic effect.
► The addition of lactulose reduced the time to complete fermentation.
Journal: International Journal of Food Microbiology - Volume 145, Issue 1, 31 January 2011, Pages 22–27