Journal of Food and Nutrition Research
ISSN (Print): 2333-1119 ISSN (Online): 2333-1240 Website: http://www.sciepub.com/journal/jfnr Editor-in-chief: Prabhat Kumar Mandal
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Journal of Food and Nutrition Research. 2018, 6(6), 346-355
DOI: 10.12691/jfnr-6-6-1
Open AccessArticle

Antioxidant Properties of Ewe versus Cow Yogurt and Effect of Its Consumption on Cortisol Levels of Adults (Borderline-high Cholesterol Levels)

Natalia García-Gonzalez1, 2, Carmen Asensio-Vegas2, Daniel Rico1, Begoña Olmedilla-Alonso3, Esther Nova3, Elena Peñas3 and Ana B. Martin-Diana1,

1Agro Technological Institute, Deputy Directorate of Research and Technology, Area of Innovation and Process Optimisation, Ctra. de Burgos Km. 119, 47071 Valladolid, Spain

2Agro Technological Institute, Deputy Directorate of Research and Technology, Dairy Technological Station, Avda. Viñalta s/n, 34071 Palencia, Spain

3Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), C/ Jose Antonio Novais, 10, 28040 Madrid, Spain

Pub. Date: June 01, 2018

Cite this paper:
Natalia García-Gonzalez, Carmen Asensio-Vegas, Daniel Rico, Begoña Olmedilla-Alonso, Esther Nova, Elena Peñas and Ana B. Martin-Diana. Antioxidant Properties of Ewe versus Cow Yogurt and Effect of Its Consumption on Cortisol Levels of Adults (Borderline-high Cholesterol Levels). Journal of Food and Nutrition Research. 2018; 6(6):346-355. doi: 10.12691/jfnr-6-6-1

Abstract

Antioxidant in vitro markers were used to evaluate the total antioxidant activity of ewe (whole and semi-skimmed) and cow’s set yogurts. Results showed that cow set yogurt had significantly (p≤0.05) total higher antioxidant activity than ewe set yogurt and peptidic fraction had significant higher contribution to the total antioxidant activity compared to lipidic and/or phenolic fraction. However, when lipidic fraction was evaluated, ewe yogurt (whole and skimmed) had higher antioxidant activity than cow probably associated to the high levels of conjugated linoleic acid (CLA) in ewe milk. Although significant differences win cortisol levels were observed in certain groups of population studied (normal risk woman) regarding consume ewe yogurt, it is not possible to conclude a significant lowering effect of ewe yogurt on cortisol levels in general population.

Keywords:
antioxidant activity peptides ewe cow cortisol yogurt

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