<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The effects of kefir grains from different regions in China on fermentation and bioactivity were studied by using pH value, acidity degree, protein hydrolysis degree, antioxidant activity, angiotensin converting enzyme (ACE, EC 3.4.15.1) inhibition rate and sensory evaluation as indexes to select the most suitable kefir grains as starter for goat milk. The parameters of kefir fermented goat milk were optimized by single factor experiment constantly. The results showed that kefir grain K1, which performed better in antioxidant activity, ACE inhibitory activity than the other four kefir grains and sensory evaluation was inferior to kefir grain K5 only, was suitable for the fermentation of goat milk. And the optimum fermentation conditions were found to be as 3% inoculation size at 25 °C for 22h.</p></abstract>

The effects of kefir grains from different regions in China on fermentation and bioactivity were studied by using pH value, acidity degree, protein hydrolysis degree, antioxidant activity, angiotensin converting enzyme (ACE, EC 3.4.15.1) inhibition rate and sensory evaluation as indexes to select the most suitable kefir grains as starter for goat milk. The parameters of kefir fermented goat milk were optimized by single factor experiment constantly. The results showed that kefir grain K1, which performed better in antioxidant activity, ACE inhibitory activity than the other four kefir grains and sensory evaluation was inferior to kefir grain K5 only, was suitable for the fermentation of goat milk. And the optimum fermentation conditions were found to be as 3% inoculation size at 25 °C for 22h.

Effects of Kefir Grains on Fermentation and Bioactivity of Goat Milk

Shaanxi University of Science & Technology

Acta Universitatis Cibiniensis. Series E: Food Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Effects of Kefir Grains on Fermentation and Bioactivity of Goat Milk"}

The effects of kefir grains from different regions in China on fermentation and bioactivity were studied by using pH value, acidity degree, protein hydrolysis...

Effects of Kefir Grains on Fermentation and Bioactivity of Goat Milk

Published Online: Aug 29, 2018

Page range: 43 - 50

DOI: https://doi.org/10.2478/aucft-2018-0005

Keywords
ACE inhibitory activity, antioxidant activity, goat milk, kefir grain

© 2018 Xiaoyu Shi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Effects of Kefir Grains on Fermentation and Bioactivity of Goat Milk

Published Online: Aug 29, 2018

Page range: 43 - 50

DOI: https://doi.org/10.2478/aucft-2018-0005

KeywordsACE inhibitory activity, antioxidant activity, goat milk, kefir grain

© 2018 Xiaoyu Shi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
ACE inhibitory activity, antioxidant activity, goat milk, kefir grain