We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effects of a diet containing dried grape pomace on blood metabolites and milk composition of dairy cows.
- Authors
Chedea, Veronica Sanda; Pelmus, Rodica Stefania; Lazar, Cristina; Pistol, Gina Cecilia; Calin, Loredana Georgeta; Toma, Smaranda Mariana; Dragomir, Catalin; Taranu, Ionelia
- Abstract
BACKGROUND The effect of a diet containing 15% grape pomace ( GP) on the general health status and milk quality of dairy cows was assessed by plasma biochemistry and total polyphenol ( TP) content, milk polyphenols, milk composition and milk protein fractions. RESULTS Among the polyphenols measured by liquid chromatography-mass spectroscopy in GP, in feed containing GP ( GP+) or not containing GP ( GP-), gallic acid and epicatechin were present in the highest concentrations (67.58 and 19.23 µg mL−1, respectively). Higher amounts of TP were also detected in the blood plasma of GP+ cows (114.06 and 83.93 mg GAE L−1, respectively) but not in their milk (233.17 and 245.75 mg GAE L−1, respectively). Also a significant increase was found for lactose and β-lactoglobulin, although there was no effect on α-lactalbumin, albumin, secretory components and caseins. CONCLUSION Inclusion of 15% GP in the diets of dairy cows is beneficial for overall normal blood constituent metabolism and helps to maintain cow health. The milk of cows fed with a GP diet preserves the normal levels of fat, protein and caseins, and has increased levels of components that make this milk a versatile ingredient material for the food industry (e.g. model whey powders, stability of lactose-rich powders). © 2016 Society of Chemical Industry
- Subjects
RAISINS; MILK quality; METABOLITE analysis; FOOD portions; FOOD habits; POLYPHENOLS
- Publication
Journal of the Science of Food & Agriculture, 2017, Vol 97, Issue 8, p2516
- ISSN
0022-5142
- Publication type
Article
- DOI
10.1002/jsfa.8068