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Fermented oat milk as a base for lactose-free sauce

Journal: "Foods and Raw materials" Journal (Vol.10, No. 1)

Publication Date:

Authors : ; ; ;

Page : 155-162

Keywords : Oats; plant milk; sauce; fermentation; apple pectin; rheology; lactose-free;

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Introduction. We studied the use of fermented oat milk to produce sauce and evaluated its properties. The research was motivated by the current demand for so called “plant milk” commonly perceived as an alternative to cow’s milk. Study objects and methods. The experimental samples were produced from oats-based drinks (1.5 and 3.2% fat) fermented with starter cultures of lactic acid microorganisms following the guidelines for yoghurt production. Apple pectin was used as a thickener. Rheological studies were performed using an RM-1 rotational viscometer and a CT-2 texture analyzer according to the standard methods. Sensory evaluation was based on a scoring scale. Physicochemical parameters were determined according to generally accepted methods. Results and discussion. Oat milk was fermented to produce a sauce base. Acid accumulation increased throughout fermentation up to 135–137°T. Apple pectin (3%) was added to stabilize the structure and ensure the desired consistency. Higher concentrations of pectin increased the hardness and adhesive strength of the samples from both 1.5 and 3.2% oat milk. The 1.5% sauce scored highest in the sensory evaluation. Its physicochemical indicators met the standard requirements for related fermented milk products. We found the best consistency indicators at a pectin concentration of 3%. Conclusion. The new fermented sauce based on low fat oat milk (1.5% fat) had high consumer appeal as well as physicochemical, sensory, and rheological characteristics. The sauce can be used by people with lactose intolerance and vegetarians.

Last modified: 2022-04-11 21:59:10