Effect of acid whey-fortified breads on caecal fermentation processes and blood lipid profile in rats

Two types of diet – standard and atherogenic – were used to study the effect of wheat or wheat–rye breads supplemented with 20 % acid whey concentrate after ultrafiltration on the physiological response of growing rats. The acid whey concentrate after ultrafiltration used in rat diets caused reduced...

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Bibliographic Details
Published in:British journal of nutrition 2017-08, Vol.118 (3), p.169-178
Main Authors: Wronkowska, Małgorzata, Soral-Śmietana, Maria, Zduńczyk, Zenon, Juśkiewicz, Jerzy, Jadacka, Monika, Majkowska, Anna, Dajnowiec, Fabian J.
Format: Article
Language:English
Subjects:
Acids
Animals
Atherogenic diet
Bifidobacterium - metabolism
Bile
Body Weight
Bread
Bread - analysis
Cecum - metabolism
Cecum - microbiology
Cholesterol
Cholesterol, HDL - blood
Cholesterol, LDL - blood
Colony Count, Microbial
Diet
Diet, Atherogenic
Diet, High-Fat
Dietary supplements
Drinking water
Experiments
Fatty Acids, Volatile - metabolism
Feeds
Fermentation
Flour
Food, Fortified
Gastrointestinal Microbiome
Glycolysis
Lactose
Lactose intolerance
Lipids
Male
Metabolism
Metabolism and Metabolic Studies
Metabolites
Microbiota
Models, Animal
Nutrition research
Peptides
Physiology
Probiotics
Proteins
Rats
Rats, Wistar
Rodents
Rye
Secale - chemistry
Statistical analysis
Triglycerides - blood
Triticum - chemistry
Ultrafiltration
Weight reduction
Wheat
Whey
Whey - chemistry
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Summary:Two types of diet – standard and atherogenic – were used to study the effect of wheat or wheat–rye breads supplemented with 20 % acid whey concentrate after ultrafiltration on the physiological response of growing rats. The acid whey concentrate after ultrafiltration used in rat diets caused reduced weight gain (for atherogenic diet with wheat bread); growth of caecum tissue and digesta weight; a decrease in the pH of caecum digesta (for atherogenic diet); reduced activity of bacterial glycolytic enzymes; and a significant increase in total SCFA for both types of diet with wheat–rye breads containing acid whey concentrate. For wheat bread with acid whey, in standard diet, a statistically significant increase was found in the population of bifidobacteria. The results showed that the acid whey concentrates could be used as a valuable food ingredient.
ISSN:0007-1145
1475-2662
DOI:10.1017/S0007114517001921