Skip to main content

Sniffing Out Real Truffles



personal chef fort lauderdale



At a cost of thousands of dollars per pound, truffles are an expensive food. The fungi are prized for their distinctive aroma, and many foods claim truffles or their aromas as ingredients. But some of these foods may actually contain a much less pricey synthetic truffle compound. To help detect food fraud, researchers report in Analytical Chemistrythat they have developed a technique that discriminates between these natural and synthetic compounds.
White truffles (Tuber magnatum Pico) are the most valuable species of the fungus, and researchers have previously identified bis(methylthio)methane as the key compound responsible for white truffle aroma. Synthetic bis(methylthio)methane, produced from petrochemicals, has been approved by the World Health Organization as a food additive, yet some foods made with this cheaper compound may still command a premium price if consumers believe that they contain authentic white truffles. Current methods cannot reliably discriminate between natural and synthetic bis(methylthio)methane. To help fight food fraud, Luigi Mondello and colleagues wanted to develop a new approach.
The researchers exploited the differences in carbon isotope ratios between plant- and petroleum-derived versions of bis(methylthio)methane. After optimizing the technique of multidimensional gas chromatography coupled to combustion-isotope ratio mass spectrometry, they used the method to compare the carbon isotope ratios of bis(methylthio)methane from 24 genuine white truffles harvested at different locations in Italy, two commercial intact truffles and 14 commercial samples of foods flavored with truffles or truffle aroma. The approach could clearly discriminate foods that contained synthetic truffle aroma or a mixture of synthetic and natural aromas, and it could distinguish among products containing white truffle and those containing other species of the fungus. The researchers conclude that the improved technique can help validate foods that claim to contain truffles or natural truffle aroma.
Story Source:
Materials provided by American Chemical SocietyNote: Content may be edited for style and length.

Journal Reference:
  1. Danilo Sciarrone, Antonino Schepis, Mariosimone Zoccali, Paola Donato, Federico Vita, Donato Creti, Amedeo Alpi, Luigi Mondello. Multidimensional Gas Chromatography Coupled to Combustion-Isotope Ratio Mass Spectrometry/Quadrupole MS with a Low-Bleed Ionic Liquid Secondary Column for the Authentication of Truffles and Products Containing TruffleAnalytical Chemistry, 2018; DOI: 10.1021/acs.analchem.8b00386


personal chefs and event catering
Miami + Miami Beach + Fort Lauderdale + Palm Beach

info@yadachef.com | 954-367-YADA (9232)

Popular posts from this blog

The Insulin Resistance Diet Protocol

NORMAN SCHMIDT DIABETES Insulin is a major issue for many individuals. While insulin is a natural part of a healthy system, when the body isn’t working perfectly then insulin can become a problem that results in pre-diabetes, diabetes, and weight loss, among many other issues. The rate of diabetes could easily become an epidemic that overwhelms the medical industry, especially as some numbers predict the rate of cases doubling from 190 million to 380 million over the next two and a half decades [1]. The good news is that in most cases insulin production in the body, and the body’s ability to properly handle it, is most often a dietary issue. This means that a proper eating plan that is carefully followed can be enough for most people to overcome their insulin resistance. Insulin resistance is a warning flag for diabetes and can make weight loss extremely difficult even for individuals who shouldn’t have a problem dropping pounds. This is where  the Insulin Resistance Die

16 Best Benefits Of Corn (Bhutta) For Skin, Hair And Health

Corn, also known as maize or our good old ( Bhutta/Makkai/Challi ) in Hindi, ‘ Mokka Jonnalu ‘ in Telugu, ‘ Makkacholam ‘ in Tamil, ‘ Cholam ‘ in Malayalam, ‘ Musukina Jol a’ in Kannada, ‘ Makkai ‘ in Gujarati, ‘ Makai ‘ in Marathi and Punjabi and ‘ Butta ‘ in Bengali. Corn is a large grain plant which is said to have originated in Mexico and Central America. Though viewed as a vegetable, it is actually a food grain. The leafy stalk of the plant produces ears, which contain the grains known as kernels. For every kernel on the cob, there is a strand of silk. The white and yellow kernels are most popular, but today, corn is available in red, brown, blue and purple also. The white and yellow hybrids are known as butter and sugar corn which contain both kinds of kernels. This cereal is known for its pleasant taste and its versatility. Baby corn is available in cans or jars in the supermarkets and is used in Asian cooking. This grain is generally available in summer and can be

Braised Lettuce (Laitues Braises): A Take On Julia Child’s Recipe

You can use almost any lettuce, such as chicory, or frisee, or Boston Bib if you are busing large heads, cut them in half. We made these pescartarian because of the shrimp stock, but vegan is easy with vegetable stock, or if serving with beef, a  beef stock and bacon. Braised lettuce is a delicious garnish for poultry, white meats such as veal or pork, or steamed white fish. It can be the main accompanied by a warm sweet potato salad. Serves 4 4 heads Romaine lettuce hearts  4 thick slices of bacon (if making not vegetarian or vegan), cut into lardon strips 1 small onion , diced 2 carrots, diced 1 tablespoon/15g plus 1/2 tablespoon/7 butter divided  1 teaspoon/5ml olive oil 1/2 cup/125ml shrimp or seafood stock (see notes above) 1/2 cup/125ml cup white wine or dry white vermouth bouquet garni: 1 parsley branch, 1 branch of thyme,1  bay leaf tied to a cheesecloth ½ tablespoon butter 1 tablespoon parsley Trim stems of lettuce and remove wilted leave