lec 32

Question 1

what is camelina

Answer 1

ancient european oilseed belonging to the mustard family

Question 2

camelina can be seen as a weed, but this isn’t necessarily a bad thing. explain

Answer 2

has the traits of a weed (short growing time, tolerant to environ, can grow on marginal lands) and most importantly we can make shit out of it

only problem is its lower yields compared to other oilseeds, and, considering its a weed, it gets hit by herbicides

Question 3

how long have we been using camelina for?

Answer 3

since the bronze age in europe

Question 4

how much % oil is camelina

Answer 4

38-40% oil (high amount!)

also contains the good polyunsaturated fats like omega-3

Question 5

what can camelina be used for (practical uses)?

Answer 5

• fast drying for industrial application, in things like paints, varnishes, inks, etc
• biodiesel, at a quarter of the cost of canola oil
• useful in nylon manufacturing
• animal feed, as it improves the flavour + fatty acid profile of eggs!

Question 6

broadly, what do we use flax for?

Answer 6

both oilseeds and fibres

Question 7

how long have we been using flax for?

Answer 7

some 30 000 years (woah)

Question 8

what are some problems associated w growing flax?

Answer 8

gets outcompeted by weeds, prone to drought (harder to work w)
–> got replaced by cotton in the N america colonies

Question 9

in N america, what do we use flax for?

Answer 9

oilseeds (we use cotton for fibres, mostly)

Question 10

how do we eat flax?

Answer 10

ground flaxseed can be used as an egg substitute

Question 11

how well does flax seed keep?

Answer 11

raw flax seed keeps well, but ground flax seed spoils in a week due to oxidation

Question 12

how good is flax seed oil?

Answer 12

alright
- sensitive to heat
+ can reduce low sugar lipoprot cholesterol levels
+ one tbsp can meet human req for fatty acids

Question 13

flax seeds have some problems dont they

Answer 13

immature seeds contain cyanogenic compounds which can be toxic :p

Question 14

what is flax seed oil final form?

Answer 14

linseed oil, which is jsut refined flax seed oil

Question 15

when were soybeans domesticated?

Answer 15

6000 - 9000 years ago in east asia

Question 16

what traits did we select for in soybeans?

Answer 16

• against seed dormancy
• against vines
• against seed shattering
• for larger seeds
• for determinate growth

Question 17

what makes soybeans such good growers

Answer 17

beans - they fix nitrogen

Question 18

what conditions do soybeans require for growth

Answer 18

warmth - very sensitive to frost damage

certain amount of sunlight, but that varies from region to region (short-day plants which are sensitive to photoperiod)

Question 19

mm yummy soybeans

Answer 19

STOP!! ARE THEY RAW!! BC IF THEY ARE THEY ARE TOXIC

Question 20

what are some uses of soybean that arent food

Answer 20

print newspapers and textbooks, plastics + wood adhesives, candles, crayons (waxy)