Connect with us

Health

Researchers have discovered that the bacteria that ripen cheese react to the volatile gases produced by the cheese fungus-ScienceDaily.

 


Researchers at Tufts University say that these apparently funky odors from cheese are one way fungi communicate with bacteria, and what they say is the variety of delicious flavors cheese offers and many. I found it to be related. The researchers found that common bacteria, essential for cheese ripening, sense and respond to compounds produced by exodermis fungi and released into the air, increasing the growth of some bacteria more than others. I found that I could do it. The composition of the bacteria, yeasts, and fungi that make up the cheese microbiome is important to the flavor and quality of the cheese, so understanding how it can be controlled or altered adds science to cheesemaking technology. Will be done.

Discoveries published in Environmental microbiologyAlso provides a model for understanding and altering other economically and clinically important microbiomes such as soil and gastrointestinal tract.

Benjamin Wolf, a professor of biology at Tufts University’s Faculty of Arts and Sciences, said, “Human beings have long valued the diverse aromas of cheese for hundreds of years. It has not been studied whether it affects the disease. ” Author of the study. “Our latest findings show that cheese microbes can use these aromas to dramatically change biology, and the importance of the findings extends beyond cheese production to other areas. It also extends. “

Many microorganisms produce compounds in the air called volatile organic compounds (VOCs) when they interact with the environment. The widely recognized microbial VOC is geosmin. It is released from soil microbes and can often smell after heavy rains in the forest. When bacteria and fungi grow on aged cheese, they secrete enzymes that break down amino acids to produce acids, alcohols, aldehydes, amines, and various sulfur compounds, while other enzymes break down fatty acids into esters, methylketones, and secondary. Produces alcohol. All of these biological products contribute to the flavor and aroma of cheese, which is why Camembert, blue cheese and limburger have a unique aroma.

Tufts researchers have found that VOCs not only contribute to the cheese sensory experience, but also provide a way for fungi to communicate and “supply” bacteria within the cheese microbiome. By combining 16 common cheese bacteria with 5 common cheese skin fungi, researchers provoke a bacterial response ranging from strong irritation to strong inhibition. I found. One bacterial species, Vibriocasei, responded by growing rapidly in the presence of VOCs released from all five fungi. Other bacteria, such as cyclobacter, grow only in response to one of the fungi (galactomyces), and when exposed to VOCs produced by galactomyces, the numbers of two common cheese bacteria are significant. Has decreased to.

Researchers have found that VOCs alter the expression of many genes in bacteria, including genes that affect how nutrients are metabolized. One of the enhanced metabolic mechanisms, glyoxylic acid shunts, allows bacteria to use simpler compounds as “food” when more complex sources such as glucose are not available. In effect, they allowed bacteria to better “eat” some VOCs and use them as a source of energy and growth.

“Bacteria can actually eat what we perceive as an olfactory sense,” said Casey Cosetta, a postdoctoral fellow at Tufts University’s Faculty of Biology. “This is important because cheese itself provides very few easily metabolized sugars such as glucose. With VOCs, fungi help the bacteria grow.”

This study has a direct impact on cheese producers around the world. When you enter the cheese cave, more VOCs are released into the atmosphere as the cheese ages. These VOCs can affect the development of adjacent cheeses by promoting or inhibiting the growth of certain microorganisms or by altering the way bacteria produce other flavor-enhancing biological products. There is sex. A better understanding of this process will allow cheese growers to manipulate the VOC environment to improve the quality and variety of flavors.

The significance of the study can be even greater. “Now that we know that chemicals in the air can control the composition of the microbiome, we can start thinking about ways to control the composition of other microbiomes. For example, agriculture improves soil quality and crop production. But in medicine, it helps manage the affected illnesses. Hundreds of bacteria in the body. “

Story source:

Materials provided by Tufts University.. Note: The content can be edited in style and length.

..

What Are The Main Benefits Of Comparing Car Insurance Quotes Online

LOS ANGELES, CA / ACCESSWIRE / June 24, 2020, / Compare-autoinsurance.Org has launched a new blog post that presents the main benefits of comparing multiple car insurance quotes. For more info and free online quotes, please visit https://compare-autoinsurance.Org/the-advantages-of-comparing-prices-with-car-insurance-quotes-online/ The modern society has numerous technological advantages. One important advantage is the speed at which information is sent and received. With the help of the internet, the shopping habits of many persons have drastically changed. The car insurance industry hasn't remained untouched by these changes. On the internet, drivers can compare insurance prices and find out which sellers have the best offers. View photos The advantages of comparing online car insurance quotes are the following: Online quotes can be obtained from anywhere and at any time. Unlike physical insurance agencies, websites don't have a specific schedule and they are available at any time. Drivers that have busy working schedules, can compare quotes from anywhere and at any time, even at midnight. Multiple choices. Almost all insurance providers, no matter if they are well-known brands or just local insurers, have an online presence. Online quotes will allow policyholders the chance to discover multiple insurance companies and check their prices. Drivers are no longer required to get quotes from just a few known insurance companies. Also, local and regional insurers can provide lower insurance rates for the same services. Accurate insurance estimates. Online quotes can only be accurate if the customers provide accurate and real info about their car models and driving history. Lying about past driving incidents can make the price estimates to be lower, but when dealing with an insurance company lying to them is useless. Usually, insurance companies will do research about a potential customer before granting him coverage. Online quotes can be sorted easily. Although drivers are recommended to not choose a policy just based on its price, drivers can easily sort quotes by insurance price. Using brokerage websites will allow drivers to get quotes from multiple insurers, thus making the comparison faster and easier. For additional info, money-saving tips, and free car insurance quotes, visit https://compare-autoinsurance.Org/ Compare-autoinsurance.Org is an online provider of life, home, health, and auto insurance quotes. This website is unique because it does not simply stick to one kind of insurance provider, but brings the clients the best deals from many different online insurance carriers. In this way, clients have access to offers from multiple carriers all in one place: this website. On this site, customers have access to quotes for insurance plans from various agencies, such as local or nationwide agencies, brand names insurance companies, etc. "Online quotes can easily help drivers obtain better car insurance deals. All they have to do is to complete an online form with accurate and real info, then compare prices", said Russell Rabichev, Marketing Director of Internet Marketing Company. CONTACT: Company Name: Internet Marketing CompanyPerson for contact Name: Gurgu CPhone Number: (818) 359-3898Email: [email protected]: https://compare-autoinsurance.Org/ SOURCE: Compare-autoinsurance.Org View source version on accesswire.Com:https://www.Accesswire.Com/595055/What-Are-The-Main-Benefits-Of-Comparing-Car-Insurance-Quotes-Online View photos



Pictures Credit

ExBUlletin

to request, modification Contact us at Here or [email protected]