11 rue Flashcards
free run vs free range
free run: runs in enclosed area
free range: can run in a barn or outdoors
nutrition of eggs
have the highst PER protein efficiency ratio
13 essential vit / min: ribofalvin, selenium
lutein / zeasanthin (antiox for eye heatlh)
albumen (egg yt) is composed of…..
- ovalbumin: contributes to foaming
- ovomucin: contributes to stable egg yt, viscious egg gel
- lysozone, an antimicrobial E: part of innate immune syst
thermally stable up to 74C
lipids in the yolk are: ___ / phospholipids / ____
trig / choles
some eggs have omg3 bcs the chicken are fed fish oil & flax seed
does egg concern heart health?
egg is rich in satfat, which could < choles =/ as food high in choles
LOOK @ ENTIRE DET- eat in moderation
how to know if egg is fresh?
which color?
when broken, still round due to thick portion of egg yt
cloudy or milk yt due to dissolved CO2 after laying
sign of aging
- thinner yt & flatter yolk
- weaker chalaze so yolk not in the centre
- larger aiir cell, more basic
in terms of flavour & odour, doesnt depend on chicken/ feed / storage. T or F?
F
what to notice abt egg’s flavour & odour?
candling
assess via quality of shell / ___ / ___ __
bt now we sue mass scanner!
= to hold the eggg in dark room w/ storage light to gauge quality
see shell’s quality, size of air bubble, blood spots & molk
grade Canada A of egg
for grocery store
- undistinct, round, & centred yolk w. FIRM albumen
- uncracked shell w/ less than 3 stain spots
grade Canada C of egg
for processed food
- distinct yolk outline w/ blood spots 3mm
- cracked shell w/ stain spots BT no leak
grade Canada B of egg
floats freely
for commercial baking
- oblong yolk that floats freely when twirled
- UNcracked shell w. stain spots
Salmonella contamination: how? what to do?
heat to ___C; chill to __ __ ___ & cool rapidly after ___
inside & egg’s exterior: laying stage
how? comes from infected intestinal tract of hem OR contam on egg’s exterior -> shgell pores -> inside
when it’s inside the egg, the bacteria count is low in layign stage bt INCREASE ra[pidly @ warm temp
74C / slow growth potential / laying
shell egg pasteurisation: radio frequency (RF) waves
what’s the good thing
- patented,kil Salmonella & Ecoli
- via hot water & RF
- fast & cheap, bt new & unavailable in canada