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Latest episodes from Botanic Garden Chemistry Audio Tour

21. Thank you and goodbye

Play Episode Listen Later Oct 18, 2012 0:20


Thank you for exploring the Botanic Garden with our group of plant loving chemists.

20. Pigments from plants

Play Episode Listen Later Oct 18, 2012 1:10


One small part of the plant kingdom makes a different type of pigment to all the rest.

19. Plants in extreme environments

Play Episode Listen Later Oct 18, 2012 0:41


How plants manage to photosynthesise in extreme environments.

18. Why are plants green?

Play Episode Listen Later Oct 18, 2012 1:16


Why chlorophyll and hence plants, looks green.

17. Ancient pigments

Play Episode Listen Later Oct 18, 2012 2:36


How chemistry can change the colour of dye molecules from plants.

16. Nitrogen fixation

Play Episode Listen Later Oct 18, 2012 1:16


Hear about natures natural nitrogen fixers.

15. Nitrogen uptake by plants

Play Episode Listen Later Oct 18, 2012 0:53


Why nitrogen is important to plants and the communities of microorganisms living in the soil.

14. The caramel tree

Play Episode Listen Later Oct 18, 2012 2:55


Why the Katsura tree smells of caramel and how analytical techniques have solved the problem of what is responsible for the smell.

13. New medicines from plants

Play Episode Listen Later Oct 18, 2012 1:05


Many modern medicines are derived from plants.

12. Healing molecules or poisonous plants?

Play Episode Listen Later Oct 18, 2012 2:22


The notorious history of healing molecules. Many molecules from plants can be used as medicines but are also toxic if the dose is too large.

11. The machine inside plants

Play Episode Listen Later Oct 18, 2012 1:13


The photosynthetic machinery inside plants is explained.

10. Colourful vegetables

Play Episode Listen Later Oct 18, 2012 2:03


Pigments from plants are different colours depending on the chemical environment they are in.

09. The hottest plant in the world

Play Episode Listen Later Oct 18, 2012 2:36


How chillis and a euphorbia are helping to produce new painkillers.

08. The chemistry of decaffeination

Play Episode Listen Later Oct 18, 2012 1:44


How chemistry impacts on decaffeination of the world's second most popular drink.

07. The many tastes of ginger

Play Episode Listen Later Oct 18, 2012 2:08


Ginger contains a cocktail of different molecules. The different molecules in dried, cooked and fresh ginger lead to different flavours.

06. New materials from plants

Play Episode Listen Later Oct 18, 2012 2:18


The lotus plant has inspired the development of new self-cleaning materials.

05. Energy from the sun

Play Episode Listen Later Oct 18, 2012 2:32


How plants use energy from the sun to make food from carbon dioxide and water.

04. Robert Robinson, a revolutionary chemist

Play Episode Listen Later Oct 18, 2012 2:54


Sir Robert Robinson used the Botanic Garden in his research investigating the structures of alkaloids derived from plants.

03. Take care with the word organic

Play Episode Listen Later Oct 18, 2012 0:37


Hear what the word organic means to a chemist.

02. A few words about chemicals

Play Episode Listen Later Oct 18, 2012 0:27


Everything is made of chemicals - whether they are from a natural source or not.

01. Welcome and Introduction

Play Episode Listen Later Oct 18, 2012 0:59


A welcome to the Botanic Garden and the Chemistry at the Garden audio trail from the Senior Curator, Dr Alison Foster.

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