From Wikipedia, the free encyclopedia. Magnesium oxide (Mg O), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium (see also oxide). It has an empirical formula of Mg O and consists of a lattice of Mg 2+ ions and O 2â ions held together by ionic bonding.
Today, the main ingredients of Marmite manufactured in the UK are glutamic acid-rich yeast extract, with lesser quantities of sodium chloride, vegetable extract, niacin, thiamine, spice extracts, riboflavin, folic acid and celery extracts, although the precise composition is a trade secret.maÊmit]), a French term for a large, covered earthenware or metal cooking pot. British Marmite was originally supplied in earthenware pots, but since the 1920s has been sold in glass jars shaped like the French cooking pot.
Freebase (0.00 / 0 votes) Rate this definition: Marmite. Marmite is the brand name for two similar food spreads: the original British version, since 2000 a Unilever product; and a modified version produced in New Zealand by Sanitarium Health Food Company and distributed in Australasia and the Pacific. Marmite is made from yeast extract, a by-product of beer brewing. Other similar products include the Australian Vegemite, the Swiss Cenovis and the German Vitam-R. The British version of the product is a sticky, dark brown food paste with a distinctive, powerful flavour, which is extremely salty.