6
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Viability, Acid and Bile Tolerance of Spray Dried Probiotic Bacteria and Some Commercial Probiotic Supplement Products Kept at Room Temperature.

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Production of probiotic food supplements that are shelf-stable at room temperature has been developed for consumer's convenience, but information on the stability in acid and bile environment is still scarce. Viability and acid and bile tolerance of microencapsulated Bifidobacterium spp. and Lactobacillus acidophilus and 4 commercial probiotic supplements were evaluated. Bifidobacterium and L. acidophilus were encapsulated with casein-based emulsion using spray drying. Water activity (aw ) of the microspheres containing Bifidobacterium or L. acidophilus (SD GM product) was adjusted to 0.07 followed by storage at 25 °C for 10 wk. Encapsulated Bifidobacterium spp. and Lactobacillus acidophilus and 4 commercial probiotic supplement products (AL, GH, RE, and BM) were tested. Since commercial probiotic products contained mixed bacteria, selective media MRS-LP (containing L-cysteine and Na-propionate) and MRS-clindamycin agar were used to grow Bifidobacterium spp. or L. acidophilus, respectively, and to inhibit the growth of other strains. The results showed that aw had a strong negative correlation with the viability of dehydrated probiotics of the 6 products. Viable counts of Bifidobacterium spp. and L. acidophilus of SD GM, AL, and GH were between 8.3 and 9.2 log CFU/g, whereas that of BM and RE were between 6.7 and 7.3 log CFU/g. Bifidobacterium in SD GM, in AL, and in GH products and L. acidophilus in SD GM, in AL, and in BM products demonstrated high tolerance to acid. Most of dehydrated probiotic bacteria were able to survive in bile environment except L. acidophilus in RE product. Exposure to gastric juice influenced bacterial survivability in subsequent bile environment.

          Related collections

          Author and article information

          Journal
          J Food Sci
          Journal of food science
          Wiley
          1750-3841
          0022-1147
          Jun 2016
          : 81
          : 6
          Affiliations
          [1 ] Faculty of Food Science and Nutrition, Univ. Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia.
          [2 ] School of Biomedical and Health Sciences, Victoria Univ, Werribee campus, P.O. Box 14428, Melbourne, Vic., 8001, Australia.
          [3 ] School of Biological Science, The Univ. of Hong Kong, Pokfulam Road, Hong Kong.
          Article
          10.1111/1750-3841.13313
          27145163
          c6306330-8e9a-4cf3-90aa-66a46786e8d6
          © 2016 Institute of Food Technologists®
          History

          Lactobacillus acidophilus,acid tolerance,bifidobacterium,bile tolerance,commercial probiotic supplements

          Comments

          Comment on this article