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Showing posts with label sensory science. Show all posts
Showing posts with label sensory science. Show all posts

Monday, 25 January 2021

The sweet taste of unknown

© TWDK
I eat my artichoke-aubergine breakfast dish (my vegetarian take on Antigua and Barbuda’s traditional aubergine saltfish breakfast), and take a swig of water. It tastes sweet. But then, I’m not surprised by that. Water always tastes sweet after eating artichoke.

Why is that?

It turns out scientists don’t actually know. The theory goes that cynarin, an acid found in artichoke, inhibits our sweetness receptors. When washed away (e.g. by a nice glass of water), the sweet receptors reactivate. Just as if you taste a really sugary drink and then slightly sugary one, the slightly sugary one won’t taste sweet at all by contrast (try it!), the same thing happens here: your brain goes crazy now the receptors is no longer inhibited, and interprets the water as sweet.

Friday, 26 June 2020

Baby Tastes (Things We Don’t Know about Pregnancy Series #22)

Do your baby’s tastes depend on what you ate when they were in the womb?

Apparently, you can taste foods in amniotic fluid and breast milk – certain distinct flavours such as carrot, vanilla, mint and garlic, anyway. These flavours can be detected in breastmilk as little as half an hour after eating, and adults can even smell and identify them.

Monday, 20 April 2020

Cheese

This guest article was written by Maxwell Holle from the University of Illinois.

A simple glass of milk holds the potential to become hundreds of different types of cheeses with a variety of different flavours. But with so many diverse flavours and styles, how can we identify an off-flavour?

Image by corinnabarbara from Pixabay.

 

What is cheese?


Cheese is milk that we force into a gel by either acid, heat, or enzymes. While making cheese, we try to remove as much water as possible, which also means losing some milk proteins. The simplest cheeses stop here and are known as fresh cheeses; they have a relatively salty and neutral taste. However, most cheeses take on their characteristic flavours and smells during the ageing and ripening stage, where diverse groups of microorganisms get involved. These microorganisms generate the characteristic flavours of some of our favourite cheeses.

Monday, 18 February 2019

Language of Smell

One of our five senses, it is the most complex, the most evocative, and the most mysterious sense – But we don’t know how to talk about it

Think about that for a moment – what words have you got to describe flavour except for comparing it to something else? Strong, weak, rich, complicated – there are some, but not many. Compared to the plethora of words we have to describe colour, shape, movement, sound – the flavour landscape is desolate. Most people duck away from vivid descriptions, preferring hedonic terms, like “It’s good.” And yet food is incredibly important to us; it evokes memories, creates atmospheres, is used to bond with other people and change our mood.

Smell plays a bigger role in our lives than we might realise Image credit: Public domain

Different people respond to different flavours differently, partly because of memories, and partly because of different sensitivities to flavours.

Sensitivity can be mapped: our sensitivity to bitterness is gradually lost as we age, allowing us to drink stronger tea. Strangely, this changes differently for men and women: the decline in scent and in bitterness sensitivity is gradual for men, but for women, doesn’t kick in until the menopause. This may be because many bitter things are natural poisons. Our ability to detect them directly impacts our ability to survive in the wild. It’s more important to refine this sense early so we learn lessons we remember our whole lives. Similarly, children are mad about sugar. This sensitivity to it, which we lose as we age, could be another survival tactic, encouraging children to quickly hone in on the densest sources of energy.

But different people lose sensitivity to different smells. It's possible this may depend on the pollutants and viruses you’re exposed to during your lifetime. More mysterious is the fact that by actively studying scents, you can halt sensitivity loss entirely. You can also teach yourself to like flavours or get sick of them by exposing yourself to them – adjusting your internal regulator.