Effect of potassium polyaspartate on tartaric stabilization
DOI:
https://doi.org/10.25746/ruiips.v7.i1.18289Abstract
The tartaric instability of wines continues to be a source of concern to winemakers. Potassium Polyaspartate is a biopolymer whose authorization to use has been published in Regulation (EU) 2017/1399.
The present work studied the efficacy of the potassium polyaspartate on the tartaric stability and the synergistic effect of the potassium polyaspartate with one or more oenological compounds. Therefore, the products tested were potassium polyaspartate, an oenological product consisting of potassium polyaspartate, carboxymethylcellulose and gum arabic, and an oenological product consisting of potassium polyaspartate and mannoprotein (this product is not marketed in Portugal yet). The tests were performed at a laboratory scale, using a white wine from the region of Vinhos Verdes, very unstable, and the tartaric stability was evaluated 24h and 2 months after the treatment.
All the oenological products tested showed good results for the tartaric stabilization of the wine, the physical-chemical constitution did not suffer alterations, nor were the sensorial characteristics influenced.
The synergistic effect of two or more compounds may be a very interesting enological solution for tartaric stabilization. Additive techniques involve lower energy costs, lower water consumption than cold stabilization, and contribute to environmental sustainability.
Keywords: carboximetilcelulose, tartaric stabilization, mannoproteins, Potassium Polyaspartate, wine
Downloads
Published
How to Cite
Issue
Section
License
Authors publishing in this journal agree to the following terms:
Authors retain copyright and grant the journal the right of first publication, with the article simultaneously licensed under the Creative Commons Attribution License that allows sharing of the work with acknowledgement of authorship and initial publication in this journal.
Authors are permitted to enter into additional contracts separately for non-exclusive distribution of the version of the article published in this journal (e.g., publish in an institutional repository or as a book chapter), with acknowledgment of authorship and initial publication in this journal.
Authors have permission and are encouraged to publish and distribute their work online (e.g., in institutional repositories or on their personal webpage) at any point before or during the editorial process, as this may generate productive changes, as well as increase the impact and citation of the published work.