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Sensory Profiles of Dairy Products Supplemented with Hibiscus sabdariffa Linnaeus (Roselle) Powder: A Preliminary Study

  • Kim, Se-Hyung (Center for KU Food Safety and Department of Public Health, College of Veterinary Medicine, Konkuk University) ;
  • Lim, Hyun-Woo (Center for KU Food Safety and Department of Public Health, College of Veterinary Medicine, Konkuk University) ;
  • Chon, Jung-Whan (Center for KU Food Safety and Department of Public Health, College of Veterinary Medicine, Konkuk University) ;
  • Song, Kwang-Young (Center for KU Food Safety and Department of Public Health, College of Veterinary Medicine, Konkuk University) ;
  • Seo, Kun-Ho (Center for KU Food Safety and Department of Public Health, College of Veterinary Medicine, Konkuk University)
  • Received : 2019.12.10
  • Accepted : 2019.12.16
  • Published : 2019.12.31

Abstract

The objective of this study was to evaluate the sensory profiles of market milk, yogurt, and kefir, supplemented with the powder of Hibiscus sabdariffa Linnaeus (Roselle) in 1% increments, ranging from 0% (control) to 4%. In this study, there was no statistically significant difference in titratable acidity and pH between the treated groups and the control group. All samples were evaluated in five categories by thirteen appraisers. Compared to the control group, the best sensory profiles were observed in the market milk sample supplemented with 1.0% of Hibiscus sabdariffa Linnaeus (Roselle) powder, in the yogurt samples supplemented with 2.0% and 3.0% of Hibiscus sabdariffa Linnaeus (Roselle) powder, and in the Kefir sample supplemented with 3% of Hibiscus sabdariffa Linnaeus (Roselle) powder. According to statistical analysis of the sensory profiles obtained in this study, there was a statistical difference in the taste, flavor, color, and overall acceptability of market milk; in the taste, color, texture, and overall acceptability of yogurt; and in the taste, color, and overall acceptability of Kefir, between the treated groups and the control group (p<0.05). In the future, when Hibiscus sabdariffa Linnaeus (Roselle) powder is used as a food additive for dairy products, studies on improvement of biofunctionality, as well as of sensory profiles in dairy products must be carried out.

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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