Chapter 19-Enzymes Chapter 20- Solutions and Colloidal Dispersions Chapter 21- Leavening Agents Chapter 22-The Fermentation of Food Chapter 23- The Biochemistry of Milk
100
What is activation energy referring to?
The energy that supplies the force needed for a reaction.
100
What is an aggregate?
A group or dense cluster of ions or molecules
100
What is baking powder and what does it contain?
A leavening compound that contains baking soda,dry acids,and starch or some other filler;used to produce carbon dioxide for leavening in some baked products.
100
What is aerobic and what must be present for it to occur?
Describes a chemical reaction that must take place in the presence of air or oxygen
100
What is carrageenin and why is it necessary in milk?
A vegetable gum added to evaporated milk before processing to stabilize the casein proteins
200
What is the process of blanching and how does it affect the enzymes in food?
It is the process of briefly immersing food in boiling water in order to deactivate enzymes before freezing the food.
200
What is the definition of homogenization and what does it do to fat globules in milk?
A process that reduces the fat globules in milk to a smaller and approximately equal size, and distributes them evenly
200
What is baking soda and what is it used for?
The chemical compound sodium bicarbonate used to produce carbon dioxide for leavening in some baked products
200
What is an anacrobic reaction and when can it occur?
Describes a chemical reaction that can occur in the absence of air or oxygen
200
What is creaming?
A process in which some of the fat droplets come together in larger clusters that rise and float to the top of the milk
300
What is a catalyst and what is the name of the catalyst that changes starch to D-glucose?
A substance that speeds up the rate of a reaction without being permanently changed. The name of the catalyst is α-Glucosidase.
300
What is the definition of mass percent and what is it used to describe?
The calculation used to describe the concentration of a solute in a solution
300
What is fermentation and what is its purpose?
A biological reaction that slowly splits complex organic compounds into simpler substances;used to preserve and prepare some foods
300
What is brine and how does it affect a cucumber?
A water-and-salt mixture containing large amounts of salt; used in pickle making
300
What is fortification and what is an example of what it does in milk?
The addition of a nutrient to a food during processing, as in adding vitamin D to milk
400
What is papain and where does it come from?
Papain is three enzymes, which come from a papaya fruit, diluted with salt to make a dry powder.
400
What does saturated mean and at what temperature can it be dissolved?
A solution that contains all the solute that can be dissolved at a given temperature
400
What is special about quick breads in compared to other types of breads and what are they usually made with?
Bread products that do not need time to rise; they are usually made with baking powder or baking soda
400
What does it mean to be indigenous when talking about food and what is an example?
Found naturally in a particular environment, as the bacteria that helps produce sauerkraut from cabbage
400
What is casein and of what percent does it make up of this certain nutrient in milk?
A protein that makes up about 80% of milk protein
500
What is the definition of enrichment?
Enrichment is using additives to increase the nutritive value of processed foods beyond the level contained in the food before processing.
500
What is the definition of food additive?
Any substance that a food producer intentionally adds to a food for a specific purpose
500
What is a goiter and what is it caused by?
An enlargement of the thyroid gland caused by a lack of iodine
500
What is the process of nutrification?
A process that adds nutrients to a food with a low nutrient-per-calorie ratio so that the food can replace a nutritionally balanced meal
500
What is restoration and does it add or remove nutrients to food?
The process in which nutrients that are lost in processing are returned to a food.






Unit 2-Food Chemistry and Skills Activities

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