Viability of probiotic strain Lactobacillus rhamnosus and its impact on sensory properties of cheesecake during storage at-20 degrees C and 4 degrees C


Hasgucmen C. K. , ŞENGÜN İ.

LWT-FOOD SCIENCE AND TECHNOLOGY, vol.134, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 134
  • Publication Date: 2020
  • Doi Number: 10.1016/j.lwt.2020.109967
  • Title of Journal : LWT-FOOD SCIENCE AND TECHNOLOGY

Abstract

This study aimed to evaluate the survival of Lactobacillus rhamnosus HN001 inoculated in cheesecake during storage period and to detect the possibility of producing probiotic cheesecake by using healthy formulation. The produced cheesecake samples were investigated in terms of microbiological (total coliform, Escherichia cob, Staphylococcus aureus, mold and yeast counts), physical and chemical (pH, total acidity, ash, moisture, fat, protein, and carbohydrate) and sensory properties. The numbers of L. rhamnosus HN001 in samples stored at -20 degrees C for 120 days and 4 degrees C for 5 days were in the range of 7.43-7.67 log CFU/g and 7.47-7.61 log CFU/g, respectively (P > 0.05). Pmbiotic added cheesecake samples had higher scores than control samples in terms of flavor, texture and general appreciation, depending on the storage time. The results of the study showed that L. rhamnosus HN001 can survive during storage period at levels higher than 6 log CFU/g. Consequently, cheesecake formulation used in this study had a food matrix suitable for the growth of L. rhamnosus HN001, which affects the sensory properties of the product in a positive way.