Part4 Flashcards
what is nectar
mix of chemically altered waterborne nutrients secreted into plant nectaries
how many foraging sessions per day would a bee do
10
how much of their body weight do they carry in honey
80%
what enzymes are used to break down nectar into honey
invertase
diastase
what percentage of honey sucrose when ripe
5%
what do bees add to honey and what does it do
glucose oxidase and they increase the acidity and lower the pH of honey
what percentage water content when bees will cap honey
18%
what in honey makes it a bad choice for bacteria
hydrogen peroxide
manuka honey has what additional thing that is good for antibacterial properties
methylglyoxal (MGO)
what two things only proof honey helps
cough and wounds
where are manuka bushes native
new zealand and australia
4 sugars in honey - 2 major, 2 minor
fructose and glucose = major
sucrose and maltose = minor
what other than sugar does honey contain x4
acids
vitamin
minerals
microorganisms
what acids are in honey x 5
gluconic
formic
oxalic
acetic
lactic
which honeys are highest in vitamins/minerals
dark and honeydew
most notable bacteria in honey
clostridium botulinum - spores survive
what can the bacteria in honey cause
botulism - don’t give to infants
how does crystallization happen
glucose precipitates out of water in honey
sugar crystals more likely to form around x5
pollen
wax
proplis
dust
air bubbles
how fast does crystallization occur
depends on # of foreign particles, the nectar source, temperature it is stored at
what makes crystals in honey finer or coarser
finer = low moisture content
coarser = high moisture content
at what percentage of moisture will honey start to ferment
above 18%
how does fermentation work
yeast grows consumes sugar transforms into carbon dioxide and alcohol
what percentage capped should a frame be before extracting?
80%
Difference between grade a, b, c honey
a = filtered to remove nearly all particles + clear
b/c = more particles and less clear
waht degree can you heat honey to and it still be considered raw
105
what is pasteurizing
heating food to kill microorganisms
3 types of extractors
tangential - frames in metal baskets
radial - like spokes in wheel
parallel radial - frames loaded by pushing along ramp into extractor
what is a sump
a temporary holding place that begins straining honey
5 important things in honey house
1 - bee proof, screened windows
2 - screed window w/ small bee escape
3 - concrete/tile floors w/ drains protected from acidity of honey
4 - honey+ water conduct electricity = have waterproof fittings
5 - equipment stainless, easy to clean and no rust
why are honey prices up
prices higher due to less colonies
how many less colonies are there between 1987 and 2019
15% decrease
how many unique types of honey in the US
300
scale used to classify honey colors
pfund
honey color classifications x 7
water white
extra white
white
extra light amber
light amber
amber
dark amber
what temperature does wax melt and flow freely
143-149
wax can discolor if heated over
185
what is name of debris filtered out of beeswax
slugum
blank floats above honey
wax
what has replaced wax recently
parrafin
doing what with pollen maintains its nutritional content
freezing
pollen is made up of what 4 components
protein
carbs
lipids
vitamins/mineral
when to use pollen traps
only when pollen is coming in