1 heme | Definition of heme

heme

noun
\ ˈhēm How to pronounce heme (audio) \

Definition of heme

: the deep red iron-containing prosthetic group C34H32N4O4Fe of hemoglobin and myoglobin

Examples of heme in a Sentence

Recent Examples on the Web

Color Additive Soy leghemoglobin, or heme, is the ingredient that gives the Impossible Burger its essential meat-like flavor. Deena Shanker, Fortune, "Impossible Foods Moves Closer to Selling its Faux Meat in Groceries," 31 July 2019 Along with a mix of vegetable proteins and fats, the heme is the catalyst that helps produce all the flavor and aroma. CBS News, "Where's the beef? Hamburger patties made from plants," 7 July 2019 The Impossible Burger gets its heme from the protein soy leghemoglobin, which is naturally found in soy roots. Savannah Eadens, The Courier-Journal, "Looking for the Impossible Burger in Louisville? We made it possible," 17 May 2017 The company's secret weapon is heme — an iron-containing molecule found in plants and animals that, according to Impossible, is responsible for meat's flavor and aroma. CNN, "Impossible made fake meat a hot commodity. Now it could be a victim of its own success," 27 June 2019 That company’s method for making the key ingredient, heme, involves genetic modification and would need to be approved by European authorities. Sigal Samuel, Vox, "Can you taste the difference between plant-based meat and beef? Burger King Sweden is betting no.," 23 July 2019 To recreate the seafood flavor, Brown said the company uses heme, a protein also seen in their meat formula. Rachel Desantis, PEOPLE.com, "Fishless Fish? Impossible Foods Is Developing Fake Seafood for Vegetarians," 10 July 2019 So far, much of Impossible’s work has focused on the biochemistry of fish flavor, which can be reproduced using heme, the same protein undergirding its meat formula, according to Pat Brown, the company’s chief executive. David Yaffe-bellany, New York Times, "The Fish Is Boneless. (Fishless, Too.)," 10 July 2019 The naked heme molecules then randomly attack the lipid membranes and other structures in the tissues, damaging them. Quanta Magazine, "Icefish Study Adds Another Color to the Story of Blood," 22 Apr. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heme.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of heme

1925, in the meaning defined above

History and Etymology for heme

International Scientific Vocabulary, from hematin

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More Definitions for heme

heme

noun
variants: or chiefly British haem \ ˈhēm How to pronounce haem (audio) \

Medical Definition of heme

: the deep red iron-containing prosthetic group C34H32N4O4Fe of hemoglobin and myoglobin that is a ferrous derivative of protoporphyrin and readily oxidizes to hematin or hemin

called also protoheme

More from Merriam-Webster on heme

Britannica.com: Encyclopedia article about heme