Articles tagged with Food Chemistry
Scientists at TUM and Leibniz-Institute developed a new methodology for simultaneous analysis of odorants and tastants using ultra-high performance liquid chromatography mass spectrometry. This approach enables fast and precise food analysis, which is crucial for manufacturers to guarantee consistent sensory quality.
Wheat yields may increase with rising CO2 levels, but at the cost of reduced nutritional quality. Researchers found a 104% higher yield under elevated CO2 conditions, accompanied by declines in nitrogen and protein content.
The distinctive scent of soft pretzels is attributed to two key odorants: 4-hydroxy-2,5-dimethyl-3(2H)-furanone and 2-acetyl-1-pyrroline. These compounds contribute to the caramel-like and roasty popcorn-like smells of pretzels.
Scientists have developed a strategy to determine organic food authenticity by analyzing the metabolites generated within plants when pesticides break down. The technique involves identifying and screening the metabolites of seven common pesticides using ultra-high-performance liquid chromatography and high-resolution mass spectrometry.
Researchers identified volatile compounds contributing to dark chocolate's distinctive aroma, including β-ionone and other essential components. By quantifying these substances using stable isotope dilution analysis, the team successfully reconstructed the scents of two dark chocolates with remarkable accuracy.
Researchers at TUM identified kaempferol 3-O-(2'''-O-sinapoyl-β-sophoroside) as the bitter compound causing rapeseed protein's unpleasant taste. This discovery paves the way for developing tasty, protein-rich foods from rapeseed.
A new complex carbohydrate was discovered in barley by University of Adelaide researchers, which has the potential to be exploited for various uses. The polysaccharide is a mix of glucose and xylose and could behave as a structural component or a viscous gel.
Researchers found that cooking spinach for short times minimizes lutein loss, while microwaving partially compensates. Adding fat to spinach releases more lutein, making smoothies a best way to consume it.
Researchers analyzed 23 popular hard ciders and found that 60% of domestic brands contained added sugars from cane or corn syrup. The study's findings suggest that labels are not a reliable way to determine whether a cider has added sugar, due to discrepancies between expected and observed isotopic ratios.
Researchers have identified cocoa as a new source of vitamin D2, found in higher amounts in dark chocolate. Vitamin D2 is crucial for the human body and can be obtained through food sources, reducing the risk of deficiencies.
Researchers have identified the biochemical basis of unintended consequences in dry-hopping beer production, including high alcohol content and pressure issues. By understanding the effects of hops on fermentation, brewers can better control beer quality and safety.
Researchers have developed a sensitive new test to detect trace amounts of peanuts in foods using the peanuts' DNA. The new assay targets DNA from peanut chloroplasts, resulting in a detection limit of about 1 part per million.
Researchers developed a technique to distinguish between natural and synthetic truffle compounds using carbon isotope ratios. The method can reliably detect foods containing synthetic truffle aroma or a mixture of synthetic and natural aromas, helping to fight food fraud.
Researchers developed a natural, non-toxic hair dye from blackcurrant skins that is as durable as conventional dyes and retains color through multiple washings. The dye's anthocyanin-based formula shows promise in addressing environmental concerns and potential health risks associated with traditional hair coloring.
Researchers have developed new eco-friendly preservatives using guava leaves, while others created fertilizers from fish bones. The top challenge projects showcased sustainable chemistry practices for a greener future.
Researchers have discovered that beef peptides can block bitter taste receptors on the tongue, potentially leading to improved flavors in food and medicine. The most effective peptides were produced through enzymatic hydrolysis using trypsin and pepsin enzymes.
Researchers found that pepper plants metabolize triclocarban, an antibiotic commonly used in personal care products, into other molecules. The study suggests that these metabolites may have negative health effects, highlighting the need for further research on the impact of environmental triclocarban exposure on human health.
Researchers found that pepper plants metabolize triclocarban, a personal care product antibiotic, leading to potential health concerns. The study's results suggest that the plant's ability to convert the substance into other molecules affects its safety assessment.
Researchers found that roasting cocoa beans at optimal temperatures can boost polyphenol content and anti-pancreas-lipase activity while maintaining flavor profile. This study challenges previous findings on the negative impact of roasting on health benefits.
Researchers found that vanillin reduced psoriatic symptoms and decreased IL-17 and IL-23 protein levels in mice with induced skin inflammation. Daily doses of vanillin above 50mg/kg body weight showed significant effects.
Researchers found that water with different isotopes exhibits complex dynamic properties when in contact with liquid water. The team's findings have significant implications for understanding ice crystallization and its applications in various industries, including agriculture and food preservation.
Broccoli sprouts contain higher levels of glucosinolates, a key compound for their potential health benefits. High pressure processing has been found to maintain these beneficial compounds while eliminating bacteria.
Fertilizing crops with iron and zinc micronutrients can increase their levels in flour, according to a new study. The process of milling grains also boosts the availability of these nutrients in bread.
A six-year study found that organic onions contain more health-benefiting phytochemicals, including flavonoids like quercetin. Weather conditions were a factor in flavonoid content, but antioxidant activity was consistently higher in organic onions.
Researchers have successfully developed gluten-free beer using Witkop teff grains, which could provide an alternative to traditional barley beers. The study found that custom malting equipment would be required to produce the beer on an industrial scale.
A firm bread and brittle crust lead to more chewing and a greater rate of release of aroma molecules, according to the researchers. The findings could help food scientists create new bread types better tailored to meet consumers' expectations.
Research suggests that pure maple syrup's inulin content can support a healthy gut microbiome, which is linked to reduced chronic inflammation. The discovery of additional compounds with antioxidant properties further supports the health benefits of pure maple syrup.
Researchers analyzed century-old lagers for their chemical profiles and found significant differences from modern brews. The beers had higher alcohol content, were less bitter, and contained more iron, copper, manganese, and zinc.
Researchers at Kaunas University of Technology have developed biodegradable packaging that can keep food fresh for longer, reducing food waste and plastic usage. The packaging, made from cellulose composites with added ethereal oil and silver particles, degrades in nature in around two years.
Scientists have identified compounds in jackfruit seeds that mimic chocolate's distinct aroma and flavor, offering a potential solution to the impending cocoa bean shortage. These findings suggest that jackfruit seeds could be used as a substitute for cocoa powder or chocolate manufacturing.
A recent study published in the Journal of Agricultural and Food Chemistry found that stink bugs can contaminate wine with stress compounds, affecting its quality. The researchers discovered that pressing is a key step in releasing these compounds, and that limiting stink bugs to three per grape cluster could improve wine quality.
Scientists analyzed 20 durian chemical ingredients to find that two compounds can re-create the overall smell. The strongest odor compounds were fruity ethyl and oniony 1-(ethylsulfanyl)ethanethiol, which combined effectively resembled the fruit's entire set of odoriferous and fragrant compounds.
Researchers found that duckweeds, particularly Wolffia globosa, have comparable protein content to lupins, rape, or peas. They also contain valuable omega-3 fatty acids like stearidonic acid and alpha-linolenic acid.
New research suggests that fast-cooking dry beans retain more protein, iron, and other minerals compared to slower-cooking varieties. This finding has significant implications for addressing global nutrient deficiencies, particularly among people with limited access to food options.
Scientists have developed a more reliable method for detecting gluten in purified wheat starch, a common ingredient in gluten-free foods. The new technique identified higher amounts of gluten in 19 out of 26 starch samples than current testing methods.
Researchers found that a ginger compound, 6-ginergol, can lower cancer risk when combined with capsaicin, the active ingredient in chili peppers. In mouse studies, only 20% of mice developed lung carcinomas after receiving both compounds, compared to 50% with capsaicin alone.
Researchers found guarana to have higher antioxidant capacity than green tea due to its high catechin content. The study showed guarana reduced oxidative stress and improved lipid profiles in healthy volunteers.
Scientists develop new method to produce fruit protein brazzein, which is 2,000 times sweeter than sugar and has fewer calories. Using yeast, researchers successfully overproduce brazzein, making it a promising low-calorie alternative to high-fructose corn syrup.
Scientists have found that a type of commercial red algae may help counteract food allergies in mice. The researchers isolated polysaccharides from the seaweed and fed them to mice with a severe shellfish allergy, resulting in reduced allergy symptoms.
Researchers analyzed over 300 samples of Parmigiano Reggiano and Grana Padano cheeses using gas chromatography-mass spectrometry. They found that PDO-labeled parmesan contained unique cyclopropane fatty acids, while adulterated products showed different fatty acid profiles.
A new paper-based test can detect foodborne pathogens within 15 minutes, making it a game-changer in large-scale food manufacturing. The test uses controlled pore size to handle complex analysis, providing simple results that don't require special training.
Researchers have identified 31 key taste compounds in parmesan cheese that contribute to its savory and bitter flavors. The study reveals several peptides found at high concentrations, which could help manufacturers improve the cheese's taste.
Researchers at OIST have developed a new theory for smooth magnetic couplings, allowing for the creation of contactless gears that can produce even motion without counterforce. This technology has several advantages over mechanical gears, including reduced maintenance and increased reliability.
Scientists use chemical fingerprints to detect saffron fraud, revealing over 50% of 'Spanish' saffron is from other countries. The technique uses metabolomics to identify unique chemical markers for each type of saffron.
Scientists have identified 49 main odor compounds in young and ripe Pinot Noir grapes, finding four consistently present in mature grapes. This breakthrough could help growers determine the optimal harvest time for improved wine quality.
MSU has defined food fraud and established strategies to fight it, providing a system-wide focus for prevention. The university's Food Fraud Initiative aims to adjust entire food supply chains to detect and prevent food fraud.
Cornell researchers modified stevia's component rebudioside A to dissipate its bitter components, reducing its aftertaste. The study's findings could encourage the beverage industry to adopt more stevia in their products.
A recent study by American Chemical Society found that wild blueberry extract has antibacterial properties against Fusobacterium nucleatum, a key bacteria associated with periodontitis. The extract successfully inhibited the growth of F. nucleatum and its ability to form biofilms, blocking a molecular pathway involved in inflammation.
A Kansas State University biochemist has modified a nonfood oilseed crop to produce high levels of lipids with unique properties. The researchers achieved very high levels of an oil with reduced viscosity and improved cold temperature characteristics, making it suitable for biofuels, industrial applications, and even food-related uses.
Researchers found high levels of phenols in spent coffee grounds, which have potential as additives to enhance health effects of other food products. The study's findings suggest that used coffee grounds could be a valuable source of dietary phenolic compounds.
Researchers have developed a mass spectrometry-based process to detect the toxic bacteria's emetic toxin, cereulide. The new method identified 18 variants of cereulide and is being evaluated for its reliability in detecting contaminated products.
Researchers have identified a compound in Korean mistletoe that can help treat nonalcoholic fatty liver disease. Viscothionin, the key ingredient, has been shown to reduce body and liver weights in obese mice, suggesting its potential as a therapeutic agent.
Researchers at University of Strathclyde and City University of New York have developed a screening method to accurately predict how peptides can combine to form stable gels. This breakthrough simplifies the discovery of functional gels for various applications, including food, cosmetics, and biomedicine.
A new study by Wilhelmina Kalt and colleagues found that a blueberry-supplemented diet did not improve sight in the dark, but helped subjects recover normal vision after exposure to bright light. The enhancement was small and unlikely to be noticeable to most healthy individuals.
Hassanien's research focuses on non-traditional seeds, fruits, and spices from Egyptian, Indian, and Arabic origins. He has discovered bioactive compounds with potential health benefits and is exploring their commercial exploitation.
A long-term study shows that KoACT, a unique patented calcium collagen product, reduces bone loss and builds new bone in post-menopausal women. The study found significant improvements in bone health compared to calcium and vitamin D supplementation.
A recent study by Mohamed Bouaziz and colleagues found that olive oil maintains its quality and nutrition better than seed oils when deep-fried or pan-fried. The researchers tested four different refined oils and found that olive oil was the most stable, while sunflower oil degraded the fastest.
Granny Smith apples contain high amounts of non-digestible compounds that promote the growth of friendly bacteria in the colon. This can help stabilize metabolic processes and reduce inflammation associated with obesity.
A new technique for detecting meat adulteration has been reported by scientists from Germany, offering a vast improvement over current methods. The approach uses protein analysis to reliably detect as little as 0.24% horse or pork in processed beef samples.
Researchers from the Bavarian Health and Food Safety Authority and Wuerzburg University devised a new way to authenticate organic produce. Their report uses nuclear magnetic resonance spectroscopy to differentiate between conventional and organic tomatoes.