Abstract

Sweet, semi-dry and semi-sweet red wine samples from two vine-growing regions in Romania: Vrancea and Recas were analyzed aiming to show their main chemical properties including heavy metal content, and, microbiological characteristics. The chemical analysis showed that the semi-dry wine (W1) has a high polyphenol content, permanganate index and content of Fe, Zn and Cu, but the lowest content of anthocyanins, sugar and Mn; the total acidity of semi-sweet wine W3 was the highest, while the semi-sweet wine W2 contained the highest concentrations of anthocyanins and SO2. No contamination with yeasts, molds and bacteria was found when opening the wine bottles, these colonies having grown one month after opening. The importance of this article comes from the comprehensive presentation of the connections among the physicochemical and microbiological characteristics of sweet to semi-sweet red wines, or to semi-dry from two vine-growing regions in Romania: Vrancea and Recas.

Highlights

  • Sweet, semi-dry and semi-sweet red wine samples from two vine-growing regions in Romania: Vrancea and Recaș were analyzed aiming to show their main chemical properties including heavy metal content, and, microbiological characteristics

  • The highest amount of polyphenols expressed as gallic acid was found in wine were: 1.5 (W1) and the lowest in wine W3 The acidity expressed as tartaric acid was balanced in all wines, varying slightly between 5.1 and 5.7 mg/L

  • The analysis of heavy metal content showed values under the limits fixed by the OIV and a relatively large variation between the analyzed samples for Sn, Cu and Cd

Read more

Summary

Introduction

Semi-dry and semi-sweet red wine samples from two vine-growing regions in Romania: Vrancea and Recaș were analyzed aiming to show their main chemical properties including heavy metal content, and, microbiological characteristics. The chemical composition of wine is very complex: besides ethanol, sugars and organic acids, wine contains polyphenols, aromatic, coloring substances such as anthocyanins and minerals such as Ca, Mg, Fe, Mn and microelements [7].

Results
Conclusion
Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.