Biotechnological Applications in Food Industry

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Questions and Answers

What is the primary benefit of nanoemulsification in food products?

  • Eliminates the need for preservatives
  • Reduces cooking time
  • Enhances nutrient delivery and dispersion (correct)
  • Improves taste and texture

Which characteristic is NOT associated with smart packaging technologies?

  • Increases product price (correct)
  • Alerts customers to contamination
  • Ability to repair small perforations
  • Responsive to environmental changes

What is the size range of droplets found in nanoemulsions?

  • 600–1000 nm
  • 100–600 nm (correct)
  • 1000–2000 nm
  • 50–100 nm

Which of the following is a benefit of nanoencapsulation in food products?

<p>Improves solubility of vitamins and antioxidants (D)</p> Signup and view all the answers

What is the thickness range of nanoscale edible coatings?

<p>5-10 nm (A)</p> Signup and view all the answers

How do antimicrobial packaging materials primarily benefit food products?

<p>Extend shelf life and maintain food safety (C)</p> Signup and view all the answers

What is an example of the delivery systems used in nanoencapsulation?

<p>Nanomicelles, liposomes or protein-based systems (C)</p> Signup and view all the answers

How do nano-nonstick coatings enhance user experience?

<p>By making it easier to extract products from containers (D)</p> Signup and view all the answers

Which type of food products can potentially benefit from nanoscale edible coatings?

<p>Fruits, vegetables, and bakery goods (B)</p> Signup and view all the answers

What is the primary function of nanosensors in food packaging?

<p>Monitor product conditions (C)</p> Signup and view all the answers

Which microorganisms are commonly associated with food biotechnology?

<p>Bacteria, yeast, and molds (A)</p> Signup and view all the answers

What role do enzymes play in the food industry?

<p>They facilitate biochemical reactions for food processing. (A)</p> Signup and view all the answers

Which accurately describes a branch of biotechnology related to food?

<p>Food biotechnology (B)</p> Signup and view all the answers

What is a key factor influencing microbial activity in the food industry?

<p>Temperature and pH levels (B)</p> Signup and view all the answers

Which type of biotechnology specifically applies genetic engineering in food production?

<p>Food biotechnology (B)</p> Signup and view all the answers

Which type of nanoparticles consists primarily of metals like gold and silver?

<p>Inorganic nanoparticles (D)</p> Signup and view all the answers

What aspect does nanotechnology address in the food industry?

<p>Enhancing food safety and quality (C)</p> Signup and view all the answers

What is a major ethical concern in food biotechnology?

<p>Impact of genetically modified organisms (B)</p> Signup and view all the answers

What is the process of creating nanostructures by assembling atoms called?

<p>Bottom-up method (A)</p> Signup and view all the answers

Which technique is primarily associated with the production of enzymes in food?

<p>Fermentation (D)</p> Signup and view all the answers

Which branch of nanotechnology focuses on enhancing environmental sustainability?

<p>Green nanotech (B)</p> Signup and view all the answers

What is a primary benefit of utilizing microorganisms in the food industry?

<p>They enhance nutritional value and safety of foods. (B)</p> Signup and view all the answers

What is one of the advantages of using fungi in nanoparticle production?

<p>Natural production processes (D)</p> Signup and view all the answers

Which of the following statements is true regarding the importance of yeasts in foods?

<p>Yeasts contribute to fermentation and flavor development. (A)</p> Signup and view all the answers

What does 'nanofood' include?

<p>Food cultivated using nanotechnology techniques (C)</p> Signup and view all the answers

Which of the following materials are typically used in nanofood as additives?

<p>Nanoparticles of iron or zinc (A)</p> Signup and view all the answers

How many nanofood products and packaging applications are estimated to be available on the market?

<p>Over 800 (A)</p> Signup and view all the answers

What are nanocapsules in the context of nanofood used for?

<p>To contain ingredients like co-enzyme Q10 or Omega 3 (C)</p> Signup and view all the answers

What is one characteristic of 'smart' packaging in nanofood technology?

<p>Maintenance of food nutritional value (D)</p> Signup and view all the answers

What role do semi-conductor nanoparticles play in nanotechnology?

<p>Application in electronics and energy systems (C)</p> Signup and view all the answers

What is the primary focus of nanotechnology?

<p>Manipulating matter on an atomic and molecular scale (C)</p> Signup and view all the answers

Which of the following best describes a nanostructure?

<p>A structure with at least one dimension less than 100 nm (C)</p> Signup and view all the answers

How does the surface area of nanomaterials compare to that of larger materials?

<p>Nanomaterials have a relatively larger surface area than the same mass of larger materials (C)</p> Signup and view all the answers

What is the significance of the size range of 1-100 nm in nanotechnology?

<p>These dimensions lead to novel physical and chemical properties (D)</p> Signup and view all the answers

What kind of ratio is typically higher in nanoparticles compared to bulk materials?

<p>Surface-to-volume ratio (A)</p> Signup and view all the answers

What are the main categories that nanoparticles are classified into?

<p>Organic and inorganic (C)</p> Signup and view all the answers

What is a characteristic behavior of nanoparticles when interacting with light?

<p>They interact with light differently and can change colors (B)</p> Signup and view all the answers

Which of the following statements is true regarding nanostructures compared to individual atoms and molecules?

<p>Nanostructures exhibit fundamentally different properties (C)</p> Signup and view all the answers

Why can nanoparticles be more chemically reactive than larger materials?

<p>They have a higher surface-to-volume ratio (D)</p> Signup and view all the answers

What effect do the unique properties of nanomaterials have on their applications?

<p>They allow for more complex and efficient technology (D)</p> Signup and view all the answers

Flashcards

What are organic nanoparticles?

Nanoparticles made from a material that contains carbon.

What are inorganic nanoparticles?

Nanoparticles made from materials that are not based on carbon. This includes metal nanoparticles, semiconductors, and magnetic nanoparticles.

What is green nanotechnology?

This branch of nanotechnology is focused on using nanotechnology to enhance sustainability in the environment.

What is nanobiotech?

This branch of nanotechnology combines the principles of nanotechnology and biology.

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What is the bottom-up method of nanoparticle synthesis?

A method of making nanoparticles by building them up from smaller components, like atoms or molecules.

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What is the top-down method of nanoparticle synthesis?

A method of making nanoparticles by breaking down larger materials into smaller pieces.

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What is nanoengineering?

A type of nanotechnology that involves designing and creating structures at the nanoscale.

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What is nanofood?

Food that has been cultivated, produced, processed or packaged using nanotechnology techniques.

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What is the biosynthesis of nanoparticles?

A method of making nanoparticles using biological organisms, like fungi or yeast.

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Explain the mechanism of biosynthesis of silver nanoparticles.

This process involves the formation of nanoparticles through a series of steps including nucleation and growth.

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Food Biotechnology

The application of biological principles and techniques to create new or improved food products and processes.

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Nanotechnology

Tiny particles that are only a few nanometers in size (1 nanometer = 1 billionth of a meter). These particles have unique properties due to their small size.

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Fermentation

The process of using microorganisms like bacteria, yeasts, or molds to produce food or change its properties.

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Genetically Modified Food

Using genetic engineering techniques to modify the genes of organisms, including food crops, to improve their characteristics.

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Enzymes in Food

Biological catalysts that speed up chemical reactions in living organisms. They play vital roles in food production, processing, and preservation.

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Molecular Biology in Food

The study of living organisms at the molecular level, including DNA, RNA, and proteins. It's crucial for understanding and modifying genetic makeup.

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Fermenter

A controlled environment where microorganisms are cultivated for fermentation or other processes. It's like a special house for microbes.

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Genetic Engineering

Modifying an organism's genetic makeup to introduce desired traits. This involves changing the DNA.

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Bioethics in Food

A group of ethical principles that guide the development and use of biotechnology, especially in relation to food production.

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Nanotechnology in Food

Using nanotechnology in agriculture and the food industry to improve food production, processing, and preservation. Tiny particles with big benefits!

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What is Nanotechnology?

Nanotechnology is the study of manipulating matter at the atomic and molecular level. It focuses on creating materials and structures with at least one dimension between 1 and 100 nanometers.

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What is a Nanometer?

A nanometer is a billionth of a meter. It's one-thousandth of a micron, which is one-thousandth of a millimeter. Think of it as a ruler with tiny, tiny marks.

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Define Nanoscience.

Nanoscience delves into the unusual behavior of materials at the atomic and molecular level. These materials behave differently than larger materials due to their size.

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What is Nano-technology?

Nano-technology is the design, creation and application of structures, devices and systems to manipulate matter at the nanometer scale.

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What are Nanomaterials?

Nanomaterials are materials that have at least one dimension measuring between 1 and 100 nanometers. Examples include nanoparticles, nanotubes, and nanofibers.

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What are Nanoparticles?

Nanoparticles are tiny particles measuring 100 nanometers or less in all three dimensions. They can be made from organic or inorganic materials.

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Why are Nanomaterials Interesting?

Nanoparticles have a much larger surface area compared to the same mass of material in a larger form. This increased surface area can make them more reactive or change their properties.

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What are the unique properties of Nanomaterials?

Nanomaterials exhibit unique properties due to their size. They can act differently, react differently, and interact with light differently compared to larger materials.

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How are Nanomaterials classified?

Nanomaterials can be categorized into nanoparticles, nanofibers, nanotubes, and nanofluidics based on their size and shape.

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What are the potential benefits of Nanomaterials?

Nanomaterials offer potential advantages over traditional materials due to their unique properties. These properties can lead to improved performance in areas like medicine, electronics, and energy.

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Nanoemulsion

Tiny droplets of oil dispersed in water, measuring 100-600 nanometers in size. They improve nutrient availability and dispersion.

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Nanoencapsulation

A method of encapsulating nutrients or additives in tiny particles (nanocapsules). These capsules release their contents in the stomach, enhancing the delivery of nutrients.

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Edible Nano coatings

Edible coatings, thinner than 5nm, invisible to the human eye. They can protect food from moisture and gas, deliver flavours, antioxidants, and extend shelf life.

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Nano-nonstick Coatings

A type of nano-coating used for easy food dispensing, like ketchup from a bottle. Reduces friction and allows for better product use.

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Smart Packaging

Packaging that changes properties in response to environmental factors like temperature or moisture, or detects food contamination.

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Antimicrobial packaging

Packaging that prevents microbial growth and contamination, extending the shelf life of food.

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Nanofibers and Nanotubes in Packaging

Nanofibers and nanotubes can be integrated into packaging materials to provide antimicrobial properties.

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Nanosensors in Food Packaging

Nanosensors are incorporated into packaging to monitor food quality and freshness throughout the supply chain.

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Tuna Fish Oil Nanoencapsulation

Nano-encapsulation can be applied to tuna fish oil, creating capsules that break down only in the stomach, improving bioavailability and taste.

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Nanoencapsulation for Nutrient Delivery

Nanoencapsulation improves the solubility of vitamins and antioxidants, enhancing their bioavailability and efficacy in food products.

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Study Notes

Biotechnological Applications in Food Industry

  • The presentation discusses biotechnological applications in the food industry.
  • It covers topics such as microorganisms associated with food, fermentation biotechnology, genetically modified food, enzymes in food industry, nanotechnology in the food industry, and ethical aspects of food biotechnology.
  • The lecture includes information on the definition, branches, and benefits of food biotechnology, as well as food safety and regulations.
  • Different techniques associated with food biotechnology are presented.

Nanotechnology

  • Nanotechnology deals with structures from 1 to 100 nanometers.
  • A nanometer is 10-9 meters.
  • This is a very small scale, far smaller than even most biological structures.
  • Nanoscience studies phenomena and manipulation of materials at atomic, molecular, and macromolecular scales.

Nano Food

  • "Nanofood" refers to food cultivated, produced, processed, or packaged with nanotechnology techniques.
  • Manufactured nanomaterials are sometimes added.
  • Examples include nanoparticles of iron, zinc, and nanocapsules containing ingredients.

Why "Nano"

  • Particles are small.
  • High surface-to-volume ratios.
  • React differently, exhibiting new properties.
  • Interact differently with light.
  • On the scale of small biological structures.

Nanotechnology Applications in Food

  • Nano-emulsions: Improve availability and dispersion of nutrients.
  • Nano-encapsulation: Enhance nutrient delivery (vitamins, antioxidants, healthy omega oils).
  • Edible nano-coatings:
    • Enable thin, invisible coatings.
    • Can act as a barrier, enhance food preservation, and deliver additional ingredients.
    • Used on meats, cheeses, fruit, vegetables, confectionery, bakery, and fast food.
  • Nano-packaging:
    • Enables smart packaging (capable of repairing holes, responding to environmental conditions, and alerting to contamination).
  • Nano-composites: Improved food packaging materials (polymers incorporating nanomaterials to enhance properties like flexibility, durability, and barrier qualities).
  • Antimicrobial packaging: Enhance food industry benefits and product shelf life, maintaining food safety by reducing microbial growth.
  • Plastic films: Enhance the freshness of food by reducing oxygen and moisture transfer.
  • Food storage bins: Kill bacteria stored in (bins with embedded nanoparticles for antimicrobial properties).
  • Food processing: Improve bioavailability and delivery of nutrients and other ingredients. Enhanced food processing using nano-encapsulation/nanotechnology for enhanced bioavailability of nutraceuticals.

Branches of Nanotechnology

  • Green nanotech: Uses nanotechnology to enhance environmental sustainability in processes.
  • Wet nanotechnology: Involves working with large masses of materials created from small components.
  • Nanoengineering: Practice of engineering at the nanoscale.
  • Nanobiotech: Intersection of nanotechnology and biology.

Synthesis of Metal Nanoparticles

  • Bottom-up method to assemble atoms into nanostructures.
  • Top-down method to cut into nanoscale pieces.

Food Packaging Applications Examples

  • Nanotechnology in food packaging can contribute to better functionality of packaging including antimicrobial, anti-fungal or temperature responsive materials.

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