Module 3: Basic Foods I - Frozen Foods and Desserts

Comprehensive flashcard deck of 100 question-and-answer pairs covering Module 3: Frozen Foods and Desserts, based on lecture content by Edd Jodi B. Maranan, RND, MPH.

What is the full title of Module 3 in the Basic Foods I lecture?

Module 3: Basic Foods I (lecture) - FROZEN DESSERTS

Who is the lecturer specified for Module 3 on Frozen Foods?

Edd Jodi B. Maranan, RND, MPH

Which college and campus of Batangas State University produced this lecture module?

College of Health Sciences, Pablo Borbon Campus

What activity is scheduled to take place immediately following the Module 3 lecture?

Oral Preliminary Activity

What is the primary purpose of lowering food temperature during freezing?

To slow or stop microbial growth and reduce chemical and enzymatic reactions that cause food deterioration

How does freezing change the physical state of water contained within food?

It lowers the food's temperature below its freezing point, causing much of its water to become ice

Which learning objective focuses on categorizing different frozen food products?

Learning Objective 1: Classify common types of frozen foods

Which learning objective covers explaining the functional roles of ingredients in frozen foods?

Learning Objective 2: Identify ingredients used in frozen food products and explain their functions

Which learning objective requires explaining the underlying physical mechanisms of food preservation by cold?

Learning Objective 3: Explain the principles of food freezing

Which learning objective addresses sensory and nutritional changes in frozen foods?

Learning Objective 4: Discuss factors affecting the texture, flavor, color, and nutritional quality of frozen foods

Which learning objective focuses on product defects and their mitigation?

Learning Objective 5: Identify common freezing defects and describe their prevention

Which learning objective covers hygienic standards for frozen food management?

Learning Objective 6: Apply proper food safety and sanitation practices when handling frozen foods

Which learning objective connects freezing principles to healthcare and professional field application?

Learning Objective 7: Relate freezing principles to nutrition and dietetics practice

What is the exact definition of freezing given in Section 3.1?

Freezing is a food preservation method in which the temperature of food is lowered below its freezing point, causing much of its water to become ice

What procedure involves briefly heating vegetables in boiling water or steam followed by rapid cooling?

Blanching

How does blanching affect enzymes present in vegetables prior to freezing?

It inactivates enzymes

What visual benefit does blanching provide for frozen vegetables?

It helps preserve color

How does blanching affect the flavor profile of frozen vegetables?

It reduces undesirable flavors

How does blanching impact microflora present on vegetable surfaces?

It reduces microorganisms on the surface

Why does blanching enhance the shelf life of frozen vegetables?

It improves storage stability by inactivating enzymes and reducing surface microorganisms

What are the six classifications of frozen foods according to food type listed in Section 3.1?

1. Frozen Fruits, 2. Frozen Vegetables, 3. Frozen Meat and Poultry, 4. Frozen Fish and Seafood, 5. Frozen Prepared Foods, 6. Frozen Desserts

How does moisture content contribute to the rapid deterioration of fish?

Fish has a high moisture content, which accelerates spoilage

What biological factor inside fish tissue accelerates its deterioration after harvest?

Enzymatic activity

What chemical reaction involving fats causes fish quality to degrade rapidly?

Lipid oxidation

What biological hazard causes rapid degradation of unpreserved seafood?

Microbial activity

What type of ice crystal formation occurs during slow freezing?

Large ice crystals form inside the food

What size of ice crystals forms when food undergoes quick or rapid freezing?

Small ice crystals form

What does the abbreviation IQF stand for in frozen food processing?

Individual Quick Freezing

How are food items processed under Individual Quick Freezing (IQF)?

Pieces of food are frozen individually rather than as one solid mass

How does ice crystal size impact cell structure during freezing?

Large ice crystals formed during slow freezing cause greater cell damage, whereas small ice crystals from fast freezing preserve cell structure better

What five characteristics can ingredients contribute to in frozen food products according to Section 3.2?

Texture, flavor, stability, nutrition, or appearance

Besides providing sweetness, how does sugar affect the freezing point of food?

Sugar lowers the freezing point

How does sugar affect free water content in frozen dessert formulations?

Sugar reduces the amount of free water

What physical structural property does sugar improve in frozen desserts?

It improves softness

How does sugar affect ice crystallization in frozen mixtures?

It influences ice crystal formation

What effect does salt have on the freezing temperature of water?

Salt lowers the freezing point of water

What functional impact does salt have on food during the freezing process beyond adding flavor?

It can influence the freezing behavior of food

What four qualities does fat contribute to frozen food products?

Flavor, creaminess, mouthfeel, and body

What four specific examples of stabilizers are listed in Section 3.2?

Guar gum, Locust bean gum, Carrageenan, and Xanthan gum

How do stabilizers affect ice crystal behavior in frozen products?

They help control ice crystal growth

What fluid property do stabilizers improve in frozen food mixtures?

They improve viscosity

How do stabilizers benefit frozen desserts during consumption or room temperature exposure?

They reduce melting problems

What sensory texture characteristic do stabilizers help maintain in frozen desserts over time?

They maintain a smooth texture

What is the first step in the preparation sequence before cooking and freezing?

Selection

What is the second step in the preparation technique sequence before cooking?

Cleaning and Washing

What is the third step in the pre-cooking preparation process?

Cutting

What is the fourth preparation technique step listed before cooking?

Blanching

What is the fifth preparation technique step outlined in Section 3.2?

Pre-cooking

What is the final preparation step listed before long-term frozen storage?

Packaging

Based on the provided phase changes of matter diagram, what phase transition occurs when a liquid changes into a solid?

Freezing

Why does food not necessarily freeze at exactly $0\,^\circ\text{C}$?

Because it contains dissolved substances such as sugars, salts, proteins, minerals, and organic acids that lower the freezing point

What five dissolved substances in food lower its freezing point below $0\,^\circ\text{C}$?

Sugars, salts, proteins, minerals, and organic acids

What effect does freezing have on microbial growth in food?

Freezing stops or greatly slows microbial growth

Does freezing destroy all microorganisms present in food?

No, freezing does not reliably destroy all microorganisms

How does freezing affect enzymatic reactions inside raw food tissues?

Freezing slows enzymatic reactions but does not necessarily stop them completely

Why must many vegetables be blanched before freezing based on principles of freezing?

Because freezing only slows enzymatic reactions rather than stopping them completely, blanching is required to inactivate enzymes prior to storage

In the phase changes of matter, what process describes the direct phase change from a solid to a gas?

Sublimation

In phase thermodynamics, what process describes the direct transition from a gas to a solid?

Deposition

What phase change describes the transition from a liquid to a gas?

Evaporation

What phase change describes the transition from a gas to a liquid?

Condensation

What phase change describes the transition from a solid to a liquid?

Melting

What dissolved solute class includes compounds like citric acid that depress the freezing point of plant tissues?

Organic acids

How does fast freezing differ from slow freezing in terms of ice crystal size and final food texture?

Fast freezing produces small ice crystals resulting in better texture, whereas slow freezing forms large ice crystals causing greater cell damage

Why is it important to maintain a stable, sufficiently low storage temperature for frozen foods?

Because repeated temperature fluctuations cause ice crystal growth, moisture migration, and texture deterioration

What alternate name is given to temperature fluctuation in frozen storage?

The freeze-thaw cycle

What happens to frozen chicken subjected to repeated freeze-thaw cycles?

Repeated cycles of freezing, slight thawing, and refreezing negatively affect its quality

What physical defect occurs when poor packaging allows moisture to escape from frozen food?

Moisture loss leads to dehydration and freezer burn

What are two key functions of good packaging in preserving frozen food quality?

Good packaging minimizes contact with air and reduces moisture loss

What three high-water content foods are given as examples of items that behave differently during freezing?

Watermelon, lettuce, and cucumber

How does the thawing method affect frozen food?

The way food is thawed influences both its quality and food safety

Are frozen foods protected indefinitely from quality deterioration?

No, even frozen foods undergo quality deterioration over extended periods of storage

What happens to the flavor of frozen food over extended storage time?

Flavor can decline

What visual change can happen to frozen foods over long storage periods?

Color can change

What chemical change happens to fats during extended frozen storage?

Oxidation can occur

What happens to the nutritional value of frozen food over prolonged storage?

Nutrients can decrease

What are the characteristic visual signs of freezer burn on food?

Dry, grayish or whitish patches, dehydrated areas, and surface deterioration

What is the primary physical cause of freezer burn?

Dehydration caused by moisture escaping due to improper packaging or exposure to air

What four measures prevent freezer burn?

Use proper packaging, remove excess air, use moisture-resistant packaging, and maintain stable freezer temperatures

What three factors cause large ice crystals to form in frozen food?

Slow freezing, temperature fluctuations, and repeated thawing and refreezing

What three actions prevent large ice crystal formation?

Freeze rapidly, maintain stable low temperatures, and avoid repeated thawing and refreezing

What is drip loss in frozen food products?

Liquid coming out of frozen food when it is thawed

In which three types of frozen foods is drip loss particularly noticeable?

Meat, fish, and fruits

What three methods prevent drip loss during freezing and thawing?

Rapid freezing, proper storage, and avoiding repeated freeze-thaw cycles

What color defect occurs in green vegetables if improperly handled during freezing?

They become dull or olive-colored

What color change can occur in frozen fruits without proper preventative processing?

Fruits may darken

What four preventive steps preserve the natural color of frozen fruits and vegetables?

Proper blanching, rapid cooling, appropriate packaging, and proper storage

What chemical process causes off-flavors and rancidity in lipid-rich frozen foods?

Lipid oxidation

Which three fatty food ingredients listed in Section 3.5 are vulnerable to off-flavors and rancidity?

Fatty fish, meat, and nuts incorporated into frozen products

What three preventive measures reduce off-flavors and rancidity in frozen foods?

Minimize oxygen exposure, use proper packaging, and maintain appropriate storage conditions

What causes fresh strawberries to develop a mushy texture after being frozen and thawed?

Slow freezing causing large ice crystal growth and cellular structural damage

What fundamental principle underpins Section 3.6 regarding freezing and sanitation?

Freezing is a preservation method, not a substitute for good sanitation

What is item A under the Food Safety and Sanitation guidelines in Section 3.6?

Personal Hygiene

What safety practice (Item B in Section 3.6) prevents transferring pathogens to frozen food?

Prevent Cross-Contamination

What storage practice (Item C in Section 3.6) ensures food safety and quality?

Proper Freezer Storage

Why is proper labeling (Item D in Section 3.6) essential in frozen food management?

To track storage duration, identify contents, and maintain effective inventory rotation

What three methods are specified as safe for thawing frozen foods (Item E in Section 3.6)?

Refrigerator thawing, microwave thawing, or cold-water thawing

Why is room temperature thawing unsafe compared to refrigerator, microwave, or cold-water thawing?

Room temperature thawing allows the outer surfaces of food to enter the temperature danger zone where microbes can multiply

What safety principle (Item F in Section 3.6) governs handling thawed food items?

Refreezing guidelines

How does moisture-resistant packaging protect frozen foods from physical quality defects?

It prevents moisture loss, air contact, dehydration, and freezer burn

Why is rapid cooling required immediately after blanching vegetables?

To quickly stop the cooking process, preserve bright color, and maintain crisp texture before packaging and freezing