Optimisation of the antioxidant activity of kombucha fermented milk products.

Malbasa R., Vitas J., Loncar E., Grahovac J., Milanovic S. (2014): Optimisation of the antioxidant activity of kombucha fermented milk products. Czech J. Food Sci., 32: 477–484. The antioxidant activity of fermented milk products obtained by using kombucha starter produced by fermentation on sweetened wild thyme extract was investigated. The starter was added to milk containing 0.8, 1.6, and 2.8% milk fat, at fermentation temperature of 37, 40, and 43°C. The fermentation process was terminated when the pH reached 4.5. Antioxidant activities to DPPH and hydroxyl radicals, the contents of MUFAs, PUFAs, vitamin C, and sensory mark, were monitored using the response surface methodology (RSM) and the method of desired function. Kombucha fermented milk products containing wild thyme (WT) showed opposite antioxidant response to DPPH and hydroxyl radicals in terms of milk fat. Optimum processing conditions for WT products in terms of antioxidant activity were: milk fat 2.78% and process temperature 37°C. In order to obtain WT products with a high sensory mark, these condi tions are completely different (milk fat 1.10% and process temperature 43°C).

• Publication year

  2018

• Venue

  Czech Journal of Food Sciences

• Publication date

  2018-02-11

• Fields of study

  Agricultural and Food Sciences, Chemistry

• Identifiers
  DOI 10.17221/447/2013-CJFS
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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