Sugar Flashcards
Sugar
Associated with desserts/drinks, holidays, baking goods
A person avg 25-35kg of sugar per year
Associated with love, comfort food for some people
Comes from sugar beets, sugar cane, maples, palm, corn
Used t be more expensive than gold
Fruits also have very high glucose, fructose, and sucrose
Natural sugar in plants and fruits are better than the table sugar
But too much sugar is not good for diabetic people (in any form)
Sugar Uses
Sweet additive
Enhances texture, color, appearance
Perservative => inhibits micro-organism growth
Non-food uses
Fermentation -> alcohol products, wine
- Ingredient in printers’ inks
- Pharmaceuticals
- Bioplastics
Sugar plants and sweets from stems and roots:
- Sugar: commodity
- Kitchen – daily sweetener: crystallized, syrup is different from honey
- People take sugar for granted, never wonder where it comes from
- Masking medicinal and food tastes
- Average consumption per capita: 25 -30 – 35 kg/yr. => cause osteoporosis, kidnney and heart diseases, dental caries, obesity, type 2 diabetes
- Eating sugar is addictive because brain secreate dopamine
Where does sugar come from?
From plants (C3 and C4) - Photosynthesis: H2O + CO2 => C6H12O6 + O2
Table Sugar
Sugar Plants
Sucrose: disaccharide (glucose + fructose)
Water soluble, fermentable
Cellulose
Starchy Plants
Starch: Polysaccharide: Water soluble
Sugar has any link with:
social, technical, political, cultural, and economic aspects
History of Sugar
Sugar cane is a main source of sugar, have been linked with trading with royalty rich people
- Produced in small quantities
- Luxury products
- 16th century: 0.5 kg = 1/3 ounce of. Gold (=600USD)
1tsp = 25-30$ USD
- Current cost => 3$/kg
First sugar mills
Sugar making: 1st record in India- about 3000 BC
- A crown made of sugar cane – described in a scared book of the Hindus (the Atarvaveda) – approximate 800 BC
- Ancient Greeks: “Saccharum in panibus” = loaves
- Alexander the Great ca. 370 BC, introduced SC to the Mediterranean from India – honey without the aid of bees
- Ancient sugar mills in Cyprus and India
Arab development in sugar Cane Production after A.D. 700
Sugar expand its colony when Alexander travels around, brought from India to the Europe contries
Arabs:
Art of extracting sugar from cane => crystallized loaves
- Spread sugar cane in the Mediterranean to Eastern Africa, Spain, and Canary Islands.
- Crusaders -> Ca. 1100 -1300 Europe and England novelty
- C,Colmbus 2nd trip (1493) to new world (santo dgo.)?
What are sugar plants?
Store large amount of fructose and glucose => sucrose
Glucose is not converted to starch
Sugar is collected form the vegetative stages
Taxonomic distribution of sugar plants
Poaceae = Sacchrum officinarum - Sugarcane
Chenopodiaceae - Beta vulgaris - Sugar beet (cousin of amaranth pseudocereal)
Aceraceae - Acer saccharum -Sugar maple
Collect the sap from the trunk of the plants
Sugar Cane
Saccharum L.
Poaceae - Southeastern Asia / New Guinea, ca 10,000 years ago
Cultivated species:
S. officinarum, S. edulis, S. sinese
High polyploids n=60-194
Perennial harvested annual
Rhizomatous
Seedless => Asexual propagated - each node and internodes have the small axiliary buds that can grow into plants
Leaves serraste margin leaves
Stalk content: sugar: 14-25%, fibers 16%, water 67-58% and other 3%