Test 7 Flashcards
If you have an allergic reaction from drinking wine, the likely cause is:
sulfites
Pediococcus spp. are commonly used to produce fermented foods from what food source?
meats
Leuconostoc spp. are commonly used to produce fermented foods from what food source?
vegetables
Parabens inhibit yeast, molds, Gram-positive, and Gram-negative bacteria. However, thier use in foods is limited. The most common application of parabens is in:
cosmetics
Nitrites combine with secondary amines to form what carcinogenic compond?
nitrosamine
Nisin is approved for use in what food products in the US?
processed cheese
Natamycin is an antifungal agent used exclusively for what food product?
cheese
In what food product would you commonly find sodium lactate?
hot dogs
Bacteriophages are approved for use in what food prodcuts specifically to control Listeria monocytogenes?
ready-to-eat meats
Brevibacterium linens is used as a post-fermentaion flavor producer in what?
limburger cheese
Yeast fermentation of grapes that contain 30% sugar would result in wine with about what alcohol content?
15%
This concept utilized multiple barriers that, individually, may not affect microbial growth in foods, but collectively, are effective as an antimicrobial system?
hurdle technology
This form of non-ionizing radiation has low penetrating capability?
UV
What universal symbol is used to indicate that foods have been treated by irradiation?
radura
What is approved radioactive source of gamma rays for treating foods?
Cs137
Colbalt60 degrades to what non-radioactive element?
nickel
Concrete walls of what minimum thickness (in feet) are required to as shielding from gamma irrdiation?
6
The process of using high dosages of gamma irradtion, in the range of 30-45 KGy, used to sterilze foods is named for:
Nicolas Appert
One of the most unusual applications of food irradiation, currently pending approval, is for the treatment of:
unrefrigerated meats
Pascalization is the treatment of foods with:
high pressure
This low-penetration form of ionizing irradtion can be used to treat large volumes of food product surfaces:
e-beam
What comon household food product is treated with irradition but has no indication of such treatment on its label?
black pepper/spices
