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Abstract

The influence of nonfermented milk containing L. acidophilus or L. bulgaricus on lactose utilization by lactose maldigesters was investigated. Nonfermented milks containing L. acidophilus or L. bulgaricus at 10(8) and 10(9) CFU/ml were prepared using 2% low-fat milk. Lactose maldigestion was monitored by measuring breath hydrogen at hourly intervals for 8 hr following consumption of 400 ml of each diet. Nonfermented milk containing L. acidophilus B at 10(8) CFU/ml were not effective in reducing breath hydrogen and symptoms. Nonfermented milk containing L. acidophilus B at 10(9) CFU/ml only slightly decreased breath hydrogen production; however, the symptoms were significantly improved. Nonfermented milks containing L. bulgaricus 449 at 10(8) and 10(9) CFU/ml were effective in reducing breath hydrogen and symptoms. The results for bulgaricus milk were all significant. In this study, L. acidophilus B and L. bulgaricus 449 were chosen because of their similar beta-galactosidase activity and bile sensitivity. L. acidophilus and L. bulgaricus are both thermophilic lactobacilli and an active transport (permease) system is found in both species for lactose transport. The major factor affecting in vivo lactose digestion in this study appears to be the bacterial cell wall/membrane structures. That the cell wall/membrane structures of L. acidophilus are different from those of L. bulgaricus can be indirectly proven by the results of sonication time for maximum beta-galactosidase activity measurement. The results of this study indicate that L. bulgaricus is usually a better choice than L. acidophilus for manufacturing nonfermented milks for lactose maldigesters.

Improvement in Lactose Tolerance in Hypolactasic Subjects Consuming Ice Creams with High or Low Concentrations of Bifidobacterium bifidum 900791

“…Regarding digestive symptoms, some authors have described that L. acidophilus in milk attenuated symptoms at concentrations of 10 9 but not 10 8 CFU/mL, while L. bulgaricus reduced exhaled H 2 and digestive symptoms at both concentrations [22]. In our study, it is interesting to note that the ice cream with the low concentration of probiotic was able to reduce the intensity of the main digestive symptoms, those being abdominal pain, bloating and increased rectal gas.…”

Effects of Prebiotic and Probiotic Supplementation on Lactase Deficiency and Lactose Intolerance: A Systematic Review of Controlled Trials

“…Of the 17 full-text articles reviewed, four were excluded due to the lack of a control group; two due to unsuitable intervention characteristics; one due to the absence of data on gastrointestinal symptoms or lactose metabolism; and one due to the publication language. Ultimately, nine [30][31][32][33][34][35][36][37][38] articles were selected for inclusion in this systematic review.…”

“…and C.d.L.) independently selected the nine articles [30][31][32][33][34][35][36][37][38], ultimately, included in the review from a total of 633 studies obtained by database searches. In cases in which no consensus was reached, R.L., R.P., and M.L.C.…”

“…Tables 2 and 3 summarize the main characteristics of the nine [30][31][32][33][34][35][36][37][38] selected randomized clinical trials (RCTs), which are ordered according to the age of the study population. Five crossover trials were included [30,31,35,36,38].…”

“…Tables 2 and 3 summarize the main characteristics of the nine [30][31][32][33][34][35][36][37][38] selected randomized clinical trials (RCTs), which are ordered according to the age of the study population. Five crossover trials were included [30,31,35,36,38]. All studies [30][31][32][33][34][35][36][37][38] were published after 1983, and five [31][32][33][34][35] in the last 10 years.…”