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Cassava

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Cassava (Manihot esculenta)
Family: Euphorbiaceae (tapioca) <palm made leaf>
Around 10,000 years ago people consume
Wild: South America
Where we get: Not Ca
Domestication
• Lower the amount of toxin
• Bigger root
• Less fibrous

Item of interest
• Root crop (food reserve) (short shelf-life) hard to get fresh cassava in US
• Parenchyma cell store Starch (when stain grow purple)
• Propagate by cutting (vegetative propagation) CLONE
• Extract the starch from the root
• Cassava pellet is use for animal feed
• Increase the growth of it due to animal feed
• Toxin Linamarin (high in leave, less in roots) in Vacuole <this have C triple bond N>
• Linamerase (enzyme in the cytoplasm)
• Linamarin + Linamerase  acetone cyanohydrins
• acetone cyanohydrins (spontaneous breakdown) hydrogen cyanide + acetone
• Hydrogen cyanide kill people (if people eat for too many get chronic cyanide poisoning
• There can’t be no Linamarin plant because insects get them

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Plant info

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