subject: bacteria

Future Plastic: Biofilms Derived from Colostral Milk Proteins

Future Plastic: Biofilms Derived from Colostral Milk Proteins

We all know that plastics are bad for the environment, and there is ongoing research indicating they are harmful to humans as well. When microplastics—less than 5 mm in length—get into oceans and tributaries, they end up in the fish and plants that we may consume. But plastic is an integral part of our lives. Computers, cars, and many household appliances are, or include components made of, plastic. Medical equipment like syringes, gloves, and the little plastic filters that go over thermometers for each new patient are one-time use items that help ensure good hygiene. And, of course, much of the food we buy is wrapped in plastic for both convenience as well as protection from contamination. In fact, it’s hard to imagine giving up the assurances that plastic can provide us when it comes to keeping our food safe. But advances in the development of milk protein-based edible films may soon make those wrappers not only less wasteful but even beneficial to our health, thus letting us have our cake and safely eating it, too. Read More...

Human Milk Reduces Gut Inflammation after Bone Marrow Transplant

Human Milk Reduces Gut Inflammation after Bone Marrow Transplant

The human newborn’s gastrointestinal (GI) tract is immature and heavily reliant on components from human milk to successfully adapt to the novel challenges of life outside of the uterus. Recent research has highlighted the important role of milk’s bioactive components in establishing a healthy gut microbiome. Starting life off with the right mix of bacteria in the GI tract is essential not only for the development of the gut but also for mucosal immunity. It is so essential, in fact, the gut microbiome has been referred to as an ancillary immune organ. Read More...

Cows May Go Green

Cows May Go Green

It’s a tough gig being a cow. Productivity expectations for meat and milk are high, and at the same time, the cow gets a bad rap for belching a potent greenhouse gas, methane, which is a by-product of its digestion. Some people say it’s like driving a car very hard on a winding mountain road and then complaining about the car’s increased exhaust gas emissions. Reducing emissions and fuel consumption while maintaining performance is the golden ambition of car manufacturers. A similar goal is also true for the cow. People in many government agricultural agencies and the Food and Agriculture Organization (FAO) want the beef and dairy industries to use more productive cattle emitting less methane and using less feed i.e., increasing industry production efficiency while decreasing its environmental footprint. It’s a tall order seemingly resisted by the realities of cow biology, however recent ground-breaking research may have opened new opportunities to meet these ambitious aims. Read More...

Dairy Battles Bad Bacteria

Dairy Battles Bad Bacteria

It seems that more and more frequently, the news reports on outbreaks of pathogens like Escherichia coli, which can result in food poisoning. The common approach to treatment is antibiotic therapy, but sometimes this treatment is not effective, or the bacteria are resistant to the antibiotic. Scientists are working hard to find ways to control bacteria without antibiotics. A study by Douëllu et al. has shown how a component of milk—milk fat globules (MFG)—may counter effects of E. coli. Read More...

Breastfeeding May Help Protect Babies from Antibiotic-Resistant Bacteria

Breastfeeding May Help Protect Babies from Antibiotic-Resistant Bacteria

Bacterial resistance to antibiotics poses a major challenge to global public health. Babies lack a fully developed immune system and gut microbiome, and are particularly susceptible to infections by resistant bacteria. More than 200,000 infants are estimated to die every year due to septic infections caused by antibiotic-resistant pathogens. Read More...

Looks Can Be Deceiving: Similar Gut Bacteria Have Different Functions in Breast-Fed and Formula-Fed Infants

Looks Can Be Deceiving: Similar Gut Bacteria Have Different Functions in Breast-Fed and Formula-Fed Infants

Infant formula manufacturers are faced with an extremely difficult task: they must transform cow or plant-based milks into a liquid that mimics human milk. This mimicry involves more than just copying human milk’s ingredient list, however. Formula must also match human milk in performance, an especially difficult endeavor when considering many components are highly complex and specific to human milk. Read More...

Tasmanian Devil Milk Provides Powerful Antibacterial Proteins

Tasmanian Devil Milk Provides Powerful Antibacterial Proteins

The Tasmanian devil is best known for being a swirling, growling, trouble-making cartoon character. But the marsupial mammal's reputation is about to get a complete makeover, thanks to new research on the function of proteins secreted in their milk and their skin. Read More...

Eating High-Fat Yogurt is Associated with a Lower Risk of Depression in Women

Eating High-Fat Yogurt is Associated with a Lower Risk of Depression in Women

Over the past few years, researchers have found several intriguing links between diet and mental health. For example, unhealthy diets have been associated with a higher risk of developing depression, while healthy diets may instead have a protective effect. These effects are thought to be at least partly mediated by the gut microbiome and may be influenced by both prebiotics and probiotics. Read More...

The Bacterial Diversity in Raw Cow Milk During Its Transport and Storage

The Bacterial Diversity in Raw Cow Milk During Its Transport and Storage

Pasteurization helps make raw cow milk safe for human consumption, but it doesn’t get rid of all bacteria. These remaining bacteria can cause spoilage, thus affecting the shelf life and quality of milk products and leading to wastage. Knowing what bacteria are present in milk before and during milk processing could help identify sources of spoilage and find ways to get rid of them. Read More...

De-stressing with Dairy

De-stressing with Dairy

When, a few years ago, researchers analyzed fecal samples from volunteer undergraduates at Swinburne University of Technology, in Victoria, Australia, they didn’t necessarily expect to find evidence of the students’ examination stress. Yet the fecal lactic acid levels—reflecting the amount of “good bacteria” of the genus Lactobacillus in the students’ guts—took a dive during the exam period. In other words, exam stress had caused the volunteers’ intestines to become more favorable environments to pathogenic organisms. As the exams went on, things only got worse: the researchers observed day-by-day reductions in the undergraduates’ fecal lactic acid levels. This couldn’t have been because exam-period diets were messing with the students’ health—the only significant dietary change was an increase in coffee consumption. Read More...

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