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3.4 Food Safety
3.4.1 Food Spoilage and Contamination
3.4.1.2 Signs of Food Spoilage
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Food spoilage is the deterioration of food quality due to the growth of microorganisms, such as
bacteria
and molds.
What is a visual sign of food spoilage?
Change in color
A slimy or soft texture in food indicates a change in
texture
due to spoilage.
How does food spoilage affect taste?
Taste alterations occur
Food spoilage and food contamination are the same thing.
False
Applying food safety practices helps prevent food
spoilage
.
Match the sign of food spoilage with its description:
Unpleasant Odor ↔️ Foul or rancid smell
Change in Color ↔️ Unusual or darkened shades
Slimey Texture ↔️ Slimy, mushy, or soft
Mold Growth ↔️ Visible mold on surface
Bloating or Bubbling ↔️ Packages inflate
Order the common signs of food spoilage from olfactory to visual:
1️⃣ Unpleasant Odor
2️⃣ Change in Color
3️⃣ Slimey or Soft Texture
4️⃣ Mold Growth
5️⃣ Bloating or Bubbling
What are the primary causes of food spoilage?
Bacteria and molds
Bacteria and
molds
can change the taste, smell, texture, and appearance of food.
Bacteria can cause unpleasant odor, slimy texture, bloating, or
bubbling
Match the cause of spoilage with its effect on food:
Bacteria ↔️ Unpleasant odor, bloating
Molds ↔️ Mold growth, color change
Understanding the role of
microorganisms
is crucial for food safety.
What are common visual signs of food spoilage?
Color change, mold, slime
Visible mold colonies on food are a sign of
spoilage
Match the olfactory sign of spoilage with its description:
Unpleasant Odor ↔️ Foul or rancid smell
Sour Smell ↔️ Acidic or vinegar-like odor
Olfactory signs of food spoilage refer to unpleasant smells emitted by
spoiled
food.
What is the definition of food spoilage?
Deterioration of food quality
An unpleasant odor in food is often caused by bacteria or
molds
Molds
can cause mold growth and changes in food color.
What does a slimey or soft texture indicate in food?
Food spoilage
Bloating in food packaging is caused by gas production from
bacteria
Common olfactory signs of food spoilage include foul, sour, and
fishy
Match the texture of spoiled food with its description and cause:
Slimy ↔️ Slippery film, bacteria, molds
Soft ↔️ Mushy or overly soft, bacteria, molds
Hard ↔️ Dry and hardened, moisture loss
Gaseous ↔️ Bubbles or bloating, bacteria
Textural changes in food often accompany
unpleasant
odors.
Common taste changes in spoiled food include sour, rancid, metallic, and
yeasty
Match the altered taste with its description, cause, and food example:
Sour ↔️ Sharp, acidic, bacteria, spoiled milk
Rancid ↔️ Bitter, unpleasant, oxidation of fats, old cooking oil
Metallic ↔️ Metallic taste, bacterial reactions, contaminated canned food
Yeasty ↔️ Slight alcohol flavor, fermentation by yeast, spoiled bread dough
Food spoilage is the deterioration of food quality due to the growth of bacteria, molds, and other
microorganisms
An unpleasant odor is a common sign of food spoilage caused by bacteria and
molds
.
Order the steps to prevent food spoilage:
1️⃣ Understand common causes like bacteria and molds
2️⃣ Store food properly to inhibit microbial growth
3️⃣ Use visual, olfactory, and textural signs to detect spoilage
Match the visual sign of food spoilage with its description:
Change in Color ↔️ Food turns a different shade
Slimey or Soft Texture ↔️ Food becomes excessively slimy
Mold Growth ↔️ Visible mold colonies appear
Bloating ↔️ Packages inflate due to gas
Olfactory signs of food spoilage include a foul or rancid smell, often caused by the growth of bacteria and
molds
Spoiled fish often has a strong, unpleasant odor due to
bacterial
growth.
A sour taste in milk is often caused by bacteria producing lactic
acid
Rancid cooking oil has a bitter, unpleasant taste due to the
oxidation
of fats.
Contamination in food refers to the presence of harmful substances or
microorganisms
Match the term with its definition:
Food Spoilage ↔️ Deterioration of food quality due to microorganisms
Contamination ↔️ Presence of harmful substances in food
What is food spoilage caused by?
Microorganism growth
Contamination refers to the presence of harmful substances or
microorganisms
Food spoilage leads to changes in taste, smell,
texture
, and appearance.
See all 83 cards
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