Mekoue Nguela, J, et al. "Sorption of Grape Proanthocyanidins and Wine Polyphenols By Yeasts, Inactivated Yeasts, and Yeast Cell Walls." Journal of Agricultural and Food Chemistry, vol. 63, no. 2, 2015, pp. 660-70.
Mekoue Nguela J, Sieczkowski N, Roi S, et al. Sorption of grape proanthocyanidins and wine polyphenols by yeasts, inactivated yeasts, and yeast cell walls. J Agric Food Chem. 2015;63(2):660-70.
Mekoue Nguela, J., Sieczkowski, N., Roi, S., & Vernhet, A. (2015). Sorption of grape proanthocyanidins and wine polyphenols by yeasts, inactivated yeasts, and yeast cell walls. Journal of Agricultural and Food Chemistry, 63(2), 660-70. https://doi.org/10.1021/jf504494m
Mekoue Nguela J, et al. Sorption of Grape Proanthocyanidins and Wine Polyphenols By Yeasts, Inactivated Yeasts, and Yeast Cell Walls. J Agric Food Chem. 2015 Jan 21;63(2):660-70. PubMed PMID: 25575250.
TY - JOUR
T1 - Sorption of grape proanthocyanidins and wine polyphenols by yeasts, inactivated yeasts, and yeast cell walls.
AU - Mekoue Nguela,J,
AU - Sieczkowski,N,
AU - Roi,S,
AU - Vernhet,A,
Y1 - 2015/01/09/
PY - 2015/1/10/entrez
PY - 2015/1/13/pubmed
PY - 2015/9/10/medline
KW - inactivated yeast fractions
KW - physicochemical properties
KW - polyphenols
KW - sorption isotherms
SP - 660
EP - 70
JF - Journal of agricultural and food chemistry
JO - J Agric Food Chem
VL - 63
IS - 2
N2 - Inactivated yeast fractions (IYFs) can be used in enology to improve the stability and mouthfeel of red wines. However, information concerning the mechanisms involved and the impact of the IYF characteristics is scarce. Adsorption isotherms were used to investigate interactions between grape proanthocyanidin fractions (PAs) or wine polyphenols (WP) and a commercial yeast strain (Y), the inactivated yeast (IY), the yeast submitted to autolyzis and inactivation (A-IY), and the cell walls obtained by mechanical disruption (CW). High affinity isotherms and high adsorption capacities were observed for grape PAs and whole cells (Y, IY, and A-IY). Affinity and adsorbed amount were lower with wine PAs, due to chemical changes occurring during winemaking. By contrast to whole cells, grape PAs and WP adsorption on CW remained very low. This raises the issue of the part played by cell walls in the interactions between yeast and proanthocyanidins and suggests the passage of the latter through the wall pores and their interaction with the plasma membrane.
SN - 1520-5118
UR - https://www.unboundmedicine.com/medline/citation/25575250/Sorption_of_grape_proanthocyanidins_and_wine_polyphenols_by_yeasts_inactivated_yeasts_and_yeast_cell_walls_
DB - PRIME
DP - Unbound Medicine