Characterization of Food Texture
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Questions and Answers

What is the primary cause of a lumpy texture in food?

  • Excessive heat during food preparation
  • Inadequate mixing of solid and liquid ingredients at the same temperature (correct)
  • Poor storage of the food product
  • Insufficient moisture in the food
  • What is the term used to describe the force required to compress a substance between the molar teeth or between the tongue and palate?

  • Hardness (correct)
  • Brittleness
  • Cohesiveness
  • Elasticity
  • What is the characteristic of a food that is defined as the rate at which the deformed material regains its original condition after the removal of the deforming force?

  • Cohesiveness
  • Elasticity (correct)
  • Brittleness
  • Tenderness
  • What is the term used to describe the energy required to masticate a solid food product for swallowing?

    <p>Chewiness</p> Signup and view all the answers

    What is the characteristic of a food that is defined as the extent to which a material can be deformed before it ruptures?

    <p>Cohesiveness</p> Signup and view all the answers

    What is the term used to describe the undesirable texture of food that is too moist or has too much liquid?

    <p>Soggy</p> Signup and view all the answers

    What is the primary sense used to perceive the texture of a food?

    <p>Touch</p> Signup and view all the answers

    Which of the following is a measurable aspect of food texture?

    <p>Mass</p> Signup and view all the answers

    What is the characteristic of a food with a desirable 'short and crumbly' texture?

    <p>It just melts in your mouth when you eat it</p> Signup and view all the answers

    What is the purpose of adding a rising agent to a food?

    <p>To make the holes in the food even and close together</p> Signup and view all the answers

    What is the characteristic of a food with a spongy texture?

    <p>It is very soft and light to touch</p> Signup and view all the answers

    What is the definition of food texture?

    <p>The properties of a food that are sensed by the feeling of touch</p> Signup and view all the answers

    What is the term used to describe the force required to draw a liquid from a spoon over the tongue?

    <p>Viscosity</p> Signup and view all the answers

    What is the characteristic of products with a low degree of hardness and a high degree of cohesiveness?

    <p>Gumminess</p> Signup and view all the answers

    What is the instrument used to measure the moisture content of a fresh or processed vegetable product?

    <p>Succulometer</p> Signup and view all the answers

    What is the method of analyzing food texture by touch?

    <p>Sensory analysis</p> Signup and view all the answers

    What is the instrument used to determine the consistency or hardness of a substance?

    <p>Penetrometer</p> Signup and view all the answers

    What is the term used to describe the force necessary to remove material that adheres to the mouth during eating?

    <p>Adhesiveness</p> Signup and view all the answers

    Study Notes

    Undesirable Textures

    • Soggy texture indicates excess moisture or liquid in food, resulting in undesirable quality.
    • Lumpy texture occurs when solid and liquid components are improperly mixed, affecting texture consistency.

    Physical Characteristics of Food

    • Hardness: Amount of force needed to compress food; categorized as soft, firm, or hard.
    • Cohesiveness: The degree to which a material deforms before rupturing, influenced by internal bond strength.
    • Elasticity: Speed at which a material returns to its original shape post-deformation.
    • Brittleness, Crunchiness, Crumbliness: High hardness and low cohesiveness characterize these textures.
    • Tenderness, Chewiness, Toughness: Energy required to masticate food, involving compression and shearing actions.

    Food Texture Definition

    • Described as the group of physical characteristics affected by structural elements, sensed through various receptors.
    • Texture involves the deformation, disintegration, and flow of food under stress.

    Desirable Textures

    • Firm and Close: Indicates even distribution of air holes after the addition of rising agents.
    • Short and Crumbly: Melts in the mouth, delicate in nature.
    • Light and Even: Contains plenty of evenly distributed holes; less crumbly than pastry.
    • Spongy: Soft and light, like sponge cake, providing a pleasant mouthfeel.

    Additional Texture Characteristics

    • Adhesiveness: Force needed to remove stuck particles from the mouth; described as sticky or tacky.
    • Viscosity: Resistance of a liquid to flow; categorized as thin, watery, or thick.
    • Gumminess: Energy necessary to break down semi-solid food with low hardness and high cohesiveness.

    Characterization of Food Texture

    • Sensory Analysis: Evaluation of texture through tactile feedback.
    • Instrumental Methods: Offer consistent and sensitive assessments of texture under controlled conditions.

    Measuring Food Texture

    • Texture measurements focus on resistance to force such as compression and tensile strength.
    • Instruments assess how food feels during consumption and processing:
      • Succulometer: Measures moisture content in fresh or processed vegetables.
      • Penetrometer: Evaluates consistency or hardness by measuring penetration depth of a rod or needle under known force.

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    Description

    Understanding the different characteristics of food texture, including adhesiveness, viscosity, and gumminess. Learn about the sensory analysis of food texture.

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