Stable isotope dilution assay and HS-SPME-GCMS quantification of key aroma volatiles of Australian pineapple (Ananas comosus) cultivars - ScienceDirect
Pineapple aroma is one of the most important sensory quality traits that influences consumer purchasing patterns. Reported in this paper is a high thr…
How milk proteins interact with caffeine in espresso
The swirl of milk and espresso—a small storm in your mug—doesn't impact the dynamics of the milk proteins, according to research published in ACS Food Science & Technology.
Uptake of tire wear additives by vegetables grown for human consumption - Chemical residues from tyre wear detected in leafy vegetables for the first time
Car tires contain hundreds of chemical additives that can leach out of them. This is how they end up in crops and subsequently in the food chain. Researchers at the Center for Microbiology and Env ...
Golden rice: why has it been banned and what happens now? – podcast | Science | The Guardian
Ian Sample hears from the Observer science and environment editor, Robin McKie, and from Glenn Stone, a research professor of environmental science at Sweet Briar College in Virginia who is also an anthropologist who has studied golden rice, about why it has taken so long for this potentially life-saving technology to reach the fields, if it is the silver bullet so many had hoped for, and whether this ban is really the end of the story
Atomizer of history: How perfume research has shaped a century of scientific innovation
Is the quest for the perfect top notes responsible for some of the world's most influential scientific discoveries? A new article in the journal Isis argues that fragrance research has stimulated scientific ...
Most Life on Earth is Dormant, After Pulling an ‘Emergency Brake’ | Quanta Magazine
Many microbes and cells are in deep sleep, waiting for the right moment to activate. Biologists discovered a widespread protein that abruptly shuts down a cell’s activity — and turns it back on just as fast.
Coffee in a tube squeezes like toothpaste for brewing ... or eating
There's no shortage of ways to get your coffee fix, even in the most extreme locations. There's also no shortage of startups and inventors coming up with more, often unusual ways, to serve it. Arriving this month is yet another option aimed specifically at climbers, backpackers and all-around outdoor adventurers. Called No Normal, the new coffee style takes the form of a tube of dissolvable paste that can be mixed with water in a cup, spread onto breakfast pastries or simply gobbled straight out of the tube. It's one of the fastest, easiest ways to get a morning dose of caffeine before pushing off farther into the wild (or urban jungle).
Characterization of a Human Respiratory Mucosa Model to Study Odorant Metabolism
Nasal xenobiotic metabolizing enzymes (XMEs) are important for the sense of smell because they influence odorant availability and quality. Since the major part of the human nasal cavity is lined by a respiratory mucosa, we hypothesized that this tissue contributed to nasal odorant metabolism through XME activity. Thus, we built human respiratory tissue models and characterized the XME profiles using single-cell RNA sequencing. We focused on the XMEs dicarbonyl and l-xylulose reductase, aldehyde dehydrogenase (ALDH) 1A1, and ALDH3A1, which play a role in food odorant metabolism. We demonstrated protein abundance and localization in the tissue models and showed the metabolic activity of the corresponding enzyme families by exposing the models to the odorants 3,4-hexandione and benzaldehyde. Using gas chromatography coupled with mass spectrometry, we observed, for example, a significantly higher formation of the corresponding metabolites 4-hydroxy-3-hexanone (39.03 ± 1.5%, p = 0.0022), benzyl alcohol (10.05 ± 0.88%, p = 0.0008), and benzoic acid (8.49 ± 0.57%, p = 0.0004) in odorant-treated tissue models compared to untreated controls (0 ± 0, 0.12 ± 0.12, and 0.18 ± 0.18%, respectively). This is the first study that reveals the XME profile of tissue-engineered human respiratory mucosa models and demonstrates their suitability to study nasal odorant metabolism.
Stress literally eats away at your brain's cognitive reserve
It's no secret that stress can have a negative effect on the human body. However, a new study is revealing just how dangerous stress can be for the human brain.
Mathematicians can't agree what 'equals' means, and that's a problem | New Scientist
What does "equals" mean? For mathematicians, this simple question has more than one answer, which is causing issues when it comes to using computers to check proofs. The solution might be to tear up the foundations of maths
Discrimination of beef composition and sensory quality by using rapid Evaporative Ionisation Mass Spectrometry (REIMS) - ScienceDirect
Herein, we investigated the potential of REIMS analysis for classifying muscle composition and meat sensory quality. The study utilized 116 samples fr…
Food Allergies Explained: Here's Why Some People Are Allergic to Some Foods | Science Times
The most common food allergens among children are milk, eggs, and peanuts. Read to learn more. For people who have food allergies, their immune system could react to some food proteins like they are pathogens that are harmful.
Coca-Cola, Red Bull and Nescafe make waves in Kantar brand rankings
Coca-Cola has solidified its status as the world’s most chosen FMCG brand with a staggering global reach. But other beverages have also seen standout performances this year...
How Tobacco Companies Use Chemistry To Get Around Menthol Bans | Scientific American
Regulating chemicals one-by-one has allowed the tobacco industry to skirt menthol bans by creating new additives with similar effects but unclear safety profiles
How Salted Caramel And Ice Cream Became An Iconic Pairing
Salted caramel and vanilla ice cream are a beloved pair, but how did this delicious dessert flavor combination come about? Its history began with a chocolatier.
Comment les odeurs agissent sur notre cerveau avec le directeur de recherche au CNRS Hirac Gurden
Ali Baddou reçoit Hirac Gurden, directeur de recherche en neurosciences au CNRS, spécialiste de l’étude des sens et particulièrement de l'odorat et auteur de “Sentir. Comment les odeurs agissent sur notre cerveau” aux éditions les Arènes.
Is there anything as American as a cold glass of milk? Probably not. But how did the association with milk at the dinner table become an American staple?
Grapefruits come in all shapes and sizes. That can make for fun flavors, but difficult shopping. Read here to learn about the grapefruit types you should know.