2024 9+10

2024 9+10

166 bookmarks
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La chimie du vin | Dossier
La chimie du vin | Dossier
Comment le vigneron fait-il du vin ? Pourquoi les produits viticoles sont-ils si différents d'une région à l'autre ? Partez à la découverte de la chimie du vin.Qu'est-ce que la chimie du vin ?...
·futura-sciences.com·
La chimie du vin | Dossier
Wine and coffee byproducts could power batteries
Wine and coffee byproducts could power batteries
Creating effective batteries is a critical part of renewable energy plans – and wine and coffee could hold the answer to cheaper, more efficient and more eco-friendly battery tech.
·beveragedaily.com·
Wine and coffee byproducts could power batteries
Is There A Difference Between Coffee And Espresso Beans?
Is There A Difference Between Coffee And Espresso Beans?
The options for coffee drinks seem endless these days, and that includes the beans, too. So, what's the difference between coffee beans and espresso beans?
·tastingtable.com·
Is There A Difference Between Coffee And Espresso Beans?
What’s included in the new 2025 EU novel food guidance
What’s included in the new 2025 EU novel food guidance
Novel foods in Europe will be subject to new safety assessments early next year as the European Food Safety Authority updates processes to better reflect the changing landscape and potentially speed up approvals.
·foodnavigator.com·
What’s included in the new 2025 EU novel food guidance
Characterization of Odorants in Clustered Mountain Mint Pycnanthemum muticum | Journal of Agricultural and Food Chemistry
Characterization of Odorants in Clustered Mountain Mint Pycnanthemum muticum | Journal of Agricultural and Food Chemistry
The clustered mountain mint, Pycnanthemum muticum, is a pleasant-smelling, native North American plant. Despite its wide geographical presence across the United States and Canada, little is known about the specific odorants responsible for its pleasing aroma. Herein, 42 odorants were identified in the plant through solvent-assisted flavor evaporation (SAFE), gas chromatography–olfactometry (GC-O), and gas chromatography–mass spectrometry (GC-MS). Subsequent analysis involved determining flavor dilution (FD) factors using aroma extract dilution analysis (AEDA), quantitating 14 odorants through stable isotope dilution assays (SIDA), and calculating their odor activity values (OAVs). Several noteworthy odorants with OAV ≥ 1 included pulegone (mint, medicinal; OAV 276), 1-octen-3-one (mushroom; OAV 149), menthofuran (mint, petrol; OAV 139), nonanal (citrus; OAV 21), γ-nonalactone (coconut; OAV 13), 1,8-cineole (eucalyptus; OAV 12), mintlactone (mint, coconut; OAV 12), menthone (mint, fresh; OAV 7.3), α-pinene (pine; OAV 4), and piperitenone (mint; OAV 1.9). The study also determined the stereochemistry of various chiral odorants. An aroma simulation model was developed to validate the identification and quantitative results; upon evaluation using olfactory profile analysis, no significant differences were found between the aroma model and an aqueous infusion of P. muticum (P 0.05). These findings lay the foundation for future investigations into the diversity of P. muticum selections and can provide valuable insights for studies on plant hybridization for food and flavor applications.
·pubs.acs.org·
Characterization of Odorants in Clustered Mountain Mint Pycnanthemum muticum | Journal of Agricultural and Food Chemistry
Finally, a video that really explains how color works
Finally, a video that really explains how color works
Videos about the chemistry of color typically only scratch the surface of how electromagnetic radiation creates the beautiful rainbows of the world around us.
·phys.org·
Finally, a video that really explains how color works
The future of food
The future of food
Prognosticating what chemistry can bring to our plates
·cen.acs.org·
The future of food
A matter of taste: Electronic tongue reveals AI inner thoughts | Penn State University
A matter of taste: Electronic tongue reveals AI inner thoughts | Penn State University
A team led by Penn State researchers recently developed an electronic tongue capable of identifying differences in similar liquids, such as milk with varying water content; diverse products, including soda types and coffee blends; signs of spoilage in fruit juices; and instances of food safety concerns. They found that results were even more accurate when artificial intelligence used its own assessment parameters to interpret the data generated by the electronic tongue.
·psu.edu·
A matter of taste: Electronic tongue reveals AI inner thoughts | Penn State University
Compound Interest: The 2024 Nobel Prize in Chemistry: Predicting protein structures
Compound Interest: The 2024 Nobel Prize in Chemistry: Predicting protein structures
The 2024 Nobel Prize in Chemistry was awarded to David Baker for computational protein design and to Demis Hassabis and John M. Jumper for protein structure prediction. To read about the science behind the prize in more detail, check out the Nobel Prize press release here, the popular science background here, or the more detailed scientific background here.…
·compoundchem.com·
Compound Interest: The 2024 Nobel Prize in Chemistry: Predicting protein structures