THE CHEMISTRY OF

WHAT CAUSES GARLIC BREATH? O

S S

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ALLYL METHYL SULFIDE

There are four major volatile organic compounds responsible for ‘garlic breath’: , allyl methyl sulfide, , and allyl methyl disulfide. None of these compounds are present in garlic until it is crushed or chopped. WHAT GIVES GARLIC ANTIBACTERIAL PROPERTIES?

When garlic is mechanically damaged, enzymes S Sulfur-containing organic compounds give garlic convert the compound alliin to allicin (which gives some antibacterial properties. Antimicrobial chopped garlic its aroma). This is then broken down DIALLYL SULFIDE effects have been shown to increase as the further into the afore-mentioned volatile compounds. number of sulfur atoms in the compounds increases. Allyl methyl sulfide is broken down in the body more S slowly than the other three compounds, so it is the S The organosulfur compounds can penetrate the primary volatile responsible for garlic breath. It can DIALLYL DISULFIDE cell membranes of bacteria cells, and combine pass into the bloodstream & organs, and is excreted with certain enzymes or proteins to alter their via sweating, breathing, and through the urine. Its structure, injuring the cells. effects can last up to a day! S S S Allicin, formed initially when garlic is crushed, A few foods have been shown to have some effect on DIALLYL TRISULFIDE also has antibacterial properties. reducing garlic breath, including parsley & milk.

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