scholarly journals Can aldehyde accumulation rates ( AARs ) of red wines undergoing oxidation be predicted in accelerated conditions? The controverted role of aldehyde‐polyphenol reactivity

2021 ◽  
Author(s):  
A Marrufo‐Curtido ◽  
V Ferreira ◽  
A Escudero
Keyword(s):  
Red Wines ◽  
Accumulation Rates

Role of Polyphenols in Copper Complexation in Red Wines

1999 ◽  
Vol 47 (7) ◽  
pp. 2791-2796 ◽  
Author(s):  
Maria Teresa Vasconcelos ◽  
Manuel Azenha ◽  
Victor de Freitas
Keyword(s):  
Red Wines ◽  
Copper Complexation

scholarly journals Phosphorus burial in the ocean over glacial-interglacial time scales

2009 ◽  
Vol 6 (4) ◽  
pp. 501-513 ◽  
Author(s):  
F. Tamburini ◽  
K. B. Föllmi
Keyword(s):  
Primary Productivity ◽  
Deep Sea ◽  
Interglacial Period ◽  
Accumulation Rates ◽  
The World ◽  
Mass Accumulation Rates ◽  
Mass Accumulation ◽  
Selection Of ◽  
The Last Glacial

Abstract. The role of nutrients, such as phosphorus (P), and their impact on primary productivity and the fluctuations in atmospheric CO2 over glacial-interglacial periods are intensely debated. Suggestions as to the importance of P evolved from an earlier proposal that P actively participated in changing productivity rates and therefore climate change, to most recent ones that changes in the glacial ocean inventory of phosphorus were important but not influential if compared to other macronutrients, such as nitrate. Using new data coming from a selection of ODP sites, we analyzed the distribution of oceanic P sedimentary phases and calculate reactive P burial fluxes, and we show how P burial fluxes changed over the last glacial-interglacial period at these sites. Concentrations of reactive P are generally lower during glacial times, while mass accumulation rates (MAR) of reactive P show higher variability. If we extrapolate for the analyzed sites, we may assume that in general glacial burial fluxes of reactive P are lower than those during interglacial periods by about 8%, because the lack of burial of reactive P on the glacial shelf reduced in size, was apparently not compensated by burial in other regions of the ocean. Using the calculated changes in P burial, we evaluate their possible impact on the phosphate inventory in the world oceans. Using a simple mathematical approach, we find that these changes alone could have increased the phosphate inventory of glacial ocean waters by 17–40% compared to interglacial stages. Variations in the distribution of sedimentary P phases at the investigated sites seem to indicate that at the onset of interglacial stages, shallower sites experienced an increase in reactive P concentrations, which seems to point to P-richer waters at glacial terminations. All these findings would support the Shelf-Nutrient Hypothesis, which assumes that during glacial low stands nutrients are transferred from shallow sites to deep sea with possible feedback on the carbon cycle.

scholarly journals Diatom ooze—A large marine mercury sink

Science ◽  
2018 ◽  
Vol 361 (6404) ◽  
pp. 797-800 ◽  
Author(s):  
Sara Zaferani ◽  
Marta Pérez-Rodríguez ◽  
Harald Biester
Keyword(s):  
High Resolution ◽  
Southern Ocean ◽  
Marine Sediment ◽  
Crucial Role ◽  
Anthropogenic Pollution ◽  
Atmospheric Mercury ◽  
Mercury Accumulation ◽  
Accumulation Rates ◽  
Sediment Data

The role of algae for sequestration of atmospheric mercury in the ocean is largely unknown owing to a lack of marine sediment data. We used high-resolution cores from marine Antarctica to estimate Holocene global mercury accumulation in biogenic siliceous sediments (diatom ooze). Diatom ooze exhibits the highest mercury accumulation rates ever reported for the marine environment and provides a large sink of anthropogenic mercury, surpassing existing model estimates by as much as a factor of 7. Anthropogenic pollution of the Southern Ocean began ~150 years ago, and up to 20% of anthropogenic mercury emitted to the atmosphere may have been stored in diatom ooze. These findings reveal the crucial role of diatoms as a fast vector for mercury sequestration and diatom ooze as a large marine mercury sink.

Analytical Characterization of the Aroma of Five Premium Red Wines. Insights into the Role of Odor Families and the Concept of Fruitiness of Wines

2007 ◽  
Vol 55 (11) ◽  
pp. 4501-4510 ◽  
Author(s):  
Ana Escudero ◽  
Eva Campo ◽  
Laura Fariña ◽  
Juan Cacho ◽  
Vicente Ferreira
Keyword(s):  
Red Wines ◽  
Analytical Characterization

Role of 3-Methyl-2,4-nonanedione in the Flavor of Aged Red Wines

2013 ◽  
Vol 61 (30) ◽  
pp. 7373-7380 ◽  
Author(s):  
Alexandre Pons ◽  
Valérie Lavigne ◽  
Philippe Darriet ◽  
Denis Dubourdieu
Keyword(s):  
Red Wines

scholarly journals The key role of grape variety for antioxidant capacity of red wines

2009 ◽  
Vol 4 (1) ◽  
pp. e41-e46 ◽  
Author(s):  
Alexey Kondrashov ◽  
Rudolf Ševčík ◽  
Hana Benáková ◽  
Milada Koštířová ◽  
Stanislav Štípek
Keyword(s):  
Antioxidant Capacity ◽  
Red Wines ◽  
Grape Variety

The phenolic antioxidants of red wines from the southern coastal zone of Crimea: the role of the grape cultivar

2021 ◽  
pp. 169-180
Author(s):  
S. Levchenko ◽  
E. Ostroukhova ◽  
I. Peskova
Keyword(s):  
Coastal Zone ◽  
Phenolic Antioxidants ◽  
Red Wines ◽  
Grape Cultivar

Oxygen Consumption by Red Wines. Part I: Consumption Rates, Relationship with Chemical Composition, and Role of SO2

2015 ◽  
Vol 63 (51) ◽  
pp. 10928-10937 ◽  
Author(s):  
Vicente Ferreira ◽  
Vanesa Carrascon ◽  
Mónica Bueno ◽  
Maurizio Ugliano ◽  
Purificación Fernandez-Zurbano
Keyword(s):  
Oxygen Consumption ◽  
Chemical Composition ◽  
Red Wines ◽  
Consumption Rates

Role of Acetaldehyde in Red Wines

1941 ◽  
Vol 33 (7) ◽  
pp. 919-928 ◽  
Author(s):  
M. A. Joslyn ◽  
C. L. Comar
Keyword(s):  
Red Wines
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