Microbial transglutaminase enhances antioxidant activity of yogurt through altering pattern of water‐soluble peptides and increasing release of amino acids

Microbial transglutaminase enhances antioxidant activity of yogurt through altering pattern of... This study compared the antioxidant capacity of yogurt with and without microbial transglutaminase treatment after milk fermentation, and investigated the correlation between antioxidant property and the water‐soluble peptides and amino acids composition. Results showed that small molecular peptide fraction exhibited stronger antioxidant activity than large peptides. Microbial transglutaminase yogurt isolated fraction had stronger antioxidant capacity than that from the control. Microbial transglutaminase altered the peptides composition, and resulted in higher amount of small molecular peptides (<1.5 kDa) mainly consisting of κ‐casein‐derived peptides in yogurt. The dominant peptides sequences (IAKYI, IAKYIPI, IAKYIPIQY, PYYAK and NQFLPYPYYAK) in the treated yogurt were different from those in the control (PYPQ, VLPVPQKAVPYPQ, PVPQKAVPYPQ and VLSRYPSYGLN). Microbial transglutaminase improved the composition and concentration of amino acids in yogurt. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Food Science & Technology Wiley

Microbial transglutaminase enhances antioxidant activity of yogurt through altering pattern of water‐soluble peptides and increasing release of amino acids

Loading next page...
 
/lp/wiley/microbial-transglutaminase-enhances-antioxidant-activity-of-yogurt-Q9de4Arhja
Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
International Journal of Food Science and Technology © 2018 Institute of Food Science and Technology
ISSN
0950-5423
eISSN
1365-2621
D.O.I.
10.1111/ijfs.13679
Publisher site
See Article on Publisher Site

Abstract

This study compared the antioxidant capacity of yogurt with and without microbial transglutaminase treatment after milk fermentation, and investigated the correlation between antioxidant property and the water‐soluble peptides and amino acids composition. Results showed that small molecular peptide fraction exhibited stronger antioxidant activity than large peptides. Microbial transglutaminase yogurt isolated fraction had stronger antioxidant capacity than that from the control. Microbial transglutaminase altered the peptides composition, and resulted in higher amount of small molecular peptides (<1.5 kDa) mainly consisting of κ‐casein‐derived peptides in yogurt. The dominant peptides sequences (IAKYI, IAKYIPI, IAKYIPIQY, PYYAK and NQFLPYPYYAK) in the treated yogurt were different from those in the control (PYPQ, VLPVPQKAVPYPQ, PVPQKAVPYPQ and VLSRYPSYGLN). Microbial transglutaminase improved the composition and concentration of amino acids in yogurt.

Journal

International Journal of Food Science & TechnologyWiley

Published: Jan 1, 2018

Keywords: ; ; ; ;

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial