Spain Polyphenols Applications is postponed to 2021

Dear Colleagues,


In response to the critical situation and evolution of the COVID-19, the Organizing Committee of Polyphenols Applications 2020 decided to postpone the congress to next year.


The new date is September 23-24, 2021.
We will announce the details as soon as the planning of the 2021 meeting has been completed.


We will keep your registration, you don’t need to do anything.  In case of cancellation, the Organizing Committee will fully refund you.
Thank you for your understanding of this exceptional situation.


We will keep our optimism and wish rapidly to overcome these moments.


All our warm regards,


Prof. Dr. Andreas Schieber                      
President of Polyphenols Applications 2020
University of Bonn, Germany 


Anthocyanins - Color enhancing strategies

prof reinhold-polyphenolsProf. Reinhold Carle from the University of Hoheneim will present his work about "Anthocyanins – Color enhancing strategies" during the 12th World Congress on Polyphenols Applications: Bonn Polyphenols 2018 which will be held at the University of Bonn, Germany in September 25-28, 2018.

Apart from taste, aroma and texture, color is the most important attribute determining consumer acceptance. Many foods are colored to compensate for color losses due to harsh processing conditions and long-term storage. Furthermore, unappealing visual perception of colorless food is meliorated by the addition of artificial and natural pigments. Owing to their low cost, high stability and superior tinctorial strength, usage of synthetic and animal-based dyes has prevailed over a long period.

Nowadays, due to growing health consciousness, religious rejection, legal restrictions, and the trend toward vegetarian lifestyle, these are progressively replaced by plant pigments. However, the latter are suffering from a limited color palette, poor heat and light stability, sensitivity against high pH, complexing agents, and oxidation. Most frequently, fruit and vegetable concentrates containing anthocyanins and refined preparations thereof are a natural alternative, when water-soluble pigments producing red to bluish tonalities are demanded.

In his presentation, Prof. Carle will highlight the role and importance of color to enhance strategies.

For more information: