Domain I, Topic A, Food Science and Nutritional Composition of Foods Flashcards
(430 cards)
Fruits and vegetables are what % water?
75 - 93%
Fruits and vegetables are mostly composed of this macro nutrient ____ .
Carbohydrates
Fruits and vegetables contain both soluble and insoluble ____ .
Fiber
The crispness of fruits and vegetables is known as the state of ____ .
Turgor
State of turgor in fruits and vegetables depends on the ____ ____ of their water filled vacuoles.
Osmotic pressure
As fruits and vegetables age they increase in ____ and ____
Hemicellulose, lignin
Hemicellulose and lignin provide ____ to fruits and vegetables.
Structure
____ is the limiting amino acid in soybeans.
Methionine
What is a limiting amino acid?
An amino acid necessary for complete protein synthesis. If a limiting amino acid is absent a complete protein cannot be synthesized. Lowest common denominator amino acids.
What are the limiting amino acids?
Lysine, methionine, threonine, and tryptophan.
Protein concentrates are >= __% protein.
70%
Protein isolates are >= __% protein.
90%
TVP stands for ____ ____ ____ and is often used as a ____ substitute.
Textured Vegetable Protein, Meat
____ is changed to ____ in fruit ripening.
Starch, sugar.
Fruit is ripe when ____ is completely converted to ____.
Protopectin, pectin
Fruit is over ripe when ____ is completely converted to ____
Pectin, pectic acid
____ gas accelerates the ripening process of fruit.
Ethylene
Most produce can be stored ____.
in the fridge.
Frozen fruit should be stored at __ degrees F, __ degrees C
0, -17.8
Dried fruit should be stored at ____.
Room temperature
____, ____, ____, and ____ ripen best at room temperature.
Avocados, bananas, pears, tomatoes
The aging process is delayed in stored apple by reducing the presence of ____.
Oxygen
____ fruits ripen after they are harvested.
Climacteric.
Name the five most common climacteric fruits.
Peach, pear, banana, apple, tomato