Food Chemistry

Chocolate Chemistry C&EN teaser

The Chemistry of Dark, Milk & White Chocolate – in C&EN

Chocolate Chemistry C&EN teaser
Click to see full graphic on the C&EN site

You may well already know that a Compound Interest graphic appears monthly in the American Chemistry Society’s ‘Chemical & Engineering News’ magazine. However, I’m aware that not everyone who subscribes to the site updates here may have realised, and therefore might be missing them! Therefore, from this month onwards, I’ll be posting the links to the C&EN site where you can view the graphics created for their magazine.

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A Guide to Fruit Acids

A Guide to Common Fruit Acids

Guide to Fruit Acids
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Most people probably know that citric acid is the source of a lemon’s sourness and acidity. However, it’s not the only acid found in fruits, or even in lemons. In fact, there are a whole range of different acids, with the particular ones present varying from fruit to fruit. This graphic takes a look at some of the main players and the fruits they’re found in.

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The Chemistry of a Camembert

The Chemistry of Camembert

The Chemistry of a Camembert
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The creaminess of camembert is bested by few other cheeses – but it also has a strong smell to rival blue cheeses that reminds you of its presence in your fridge! Additionally, unlike many other cheeses, as it’s left for longer its insides start to become more gooey. Here we take a look at some camembert chemistry, and try to uncover the chemical reasons behind the cheese’s unusual characteristics.

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Aroma Chemistry – Fresh-Baked Bread

Aroma Chemistry – The Smell of Freshly-Baked Bread

Aroma Chemistry – Fresh-Baked Bread
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As we took a look at the complex chemistry of bread-making last week, this week it seemed to make perfect sense to look at some of the chemistry that results from putting the end result of that process into the oven! There are a host of compounds that contribute towards baked bread’s aroma; here we take a look at a selection of them, how they are formed, and what they contribute.

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Baking Bread: The Chemistry of Bread-Making

Infographic on the chemistry of making bread. Mixing flour proteins (glutenin and gliadin) with water forms a gluten network, held together by hydrogen bonds and disulfide crosslinks. Kneading dough strengthens the network. Starch in flour is converted by enzymes into sugars, which are used by the yeast during fermentation. Sugars also participate in flavour-forming browning reactions. Yeast fermentation produces carbon dioxide, bubbles of which cause the bread to rise. Fats weaken the gluten network and give a softer bread. Baking soda produces carbon dioxide during baking, helping bread rise.
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Though chemistry teachers might have to regularly field questions about the chemistry of ‘Breaking Bad’ these days, baking bread is probably more likely to figure on a list of their recreational activities. Bread-making is a process that seems simple, essentially involving the mixing of just four ingredients. However, there’s a lot more chemistry to it than meets the eye; here we delve into the science to work out what’s going on in your loaf.

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