Abstract
The article substantiates the possibility of using pears and cinnamon in technology of kefir that was manufactured by a thermostatic method. Natural sources of plant material are selected. It was selected a pear containing sugar, organic acids, enzymes, cellulose , tannins, nitrogen and pectin substances, vitamins C, B1, P, PP, carotene (provitamin A), flavonoids, phytoncides and cinnamon containing essential oils, tannins, resins, minerals and dietary fiber. The technology of preparation of pear fillers, namely, pear puree and pear jam, has been developed. The recipe for kefir with fillers is calculated. The expediency of using the certain ingredients of a beverage is substantiated. For fermentation of the normalized mixture, ferment Kefir 12 was used by Chr. Hansen company. The composition of this ferment includes Lactobacillus acidophilus, Lactobacillus rhamnosus, Lactococcus lactis subsp. lactis biovar diacetylactis, Leuconostoc mesenteroides, Bifidobacterium infantis, Bifidobacterium lactis, Lactobacillus fermentum, Lactobacillus lactis, Lactobacillus paracasei, Lactococcus lactis subsp. cremoris, Lactococcus lactis subsp. lactis. The optimum dose of ferment, which is 0.2–0.4% of the normalized mixture, is determined. Kefir was manufactured by thermostatic method. The normalized milk mixture with fillers was fermentated at a temperature of 27 to 29 °C for 5–6 hours. The mass fraction of fat in the finished product was 2.5%. The study of the change of active and titrated acidity during the fermentation of the product, as well as storage at the 7th and 10th days was conducted. The storage period of the resulting beverage, which is not less than seven days at a temperature of 4 ± 2 °С, is determined. The organoleptic and physico-chemical parameters of the finished product are described. Investigated physico-chemical and organoleptic parameters of kefir samples meet the requirements of DSTU 4417:2005 “Kefir. Specifications”. The use of pears and cinnamon in kefir production is expedient because of the product's enrichment with biologically active substances and the expansion of the assortment of dairy products.
Highlights
The article substantiates the possibility of using pears and cinnamon in technology of kefir that was manufactured by a thermostatic method
For fermentation of the normalized mixture, ferment Kefir 12 was used by Chr
Investigated physico-chemical and organoleptic parameters of kefir samples meet the requirements of DSTU 4417:2005 “Kefir. Specifications”
Summary
The use of pear fillers in kefir technology. The article substantiates the possibility of using pears and cinnamon in technology of kefir that was manufactured by a thermostatic method. Natural sources of plant material are selected It was selected a pear containing sugar, organic acids, enzymes, cellulose , tannins, nitrogen and pectin substances, vitamins C, B1, P, PP, carotene (provitamin A), flavonoids, phytoncides and cinnamon containing essential oils, tannins, resins, minerals and dietary fiber. For fermentation of the normalized mixture, ferment Kefir 12 was used by Chr. Hansen company. The composition of this ferment includes Lactobacillus acidophilus, Lactobacillus rhamnosus, Lactococcus lactis subsp. The normalized milk mixture with fillers was fermentated at a temperature of 27 to 29 °C for 5–6 hours. The use of pears and cinnamon in kefir production is expedient because of the product's enrichment with biologically active substances and the expansion of the assortment of dairy products
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