Modern Applications of Food Science - PowerPoint PPT Presentation

About This Presentation
Title:

Modern Applications of Food Science

Description:

Modern Applications of Food Science Chapter 4 Objectives Summarize the philosophy of ethics Define food composition Relate food to Maslow s Hierarchy of Needs ... – PowerPoint PPT presentation

Number of Views:122
Avg rating:3.0/5.0
Slides: 25
Provided by: delmarlea
Category:

less

Transcript and Presenter's Notes

Title: Modern Applications of Food Science


1
Modern Applicationsof Food Science
  • Chapter 4

2
Objectives
  • Summarize the philosophy of ethics
  • Define food composition
  • Relate food to Maslows Hierarchy of Needs
  • Define GAIN and explain its function
  • Describe hydroponics

3
Objectives (contd.)
  • Compare and contrast the advantages and
    disadvantages of aquaculture
  • Define biotechnology and its application to food
    science
  • Explain genetically modified organisms
  • Identify common food allergens
  • Define food irradiation

4
Objectives (contd.)
  • Explain cultural heritage
  • Summarize ecology and its relationship to
    biodiversity and monocultures
  • Explain sustainable agriculture
  • Analyze conservation in food service
  • Define organics

5
Ethics and Food in Modern Society
  • Ethics is the study of right and wrong behavior
  • Divided into metaethics, normative ethics and
    applied ethics
  • In food service purchasing, some topics may
    require ethical guidance
  • Food irradiation, biotechnology

6
Food Composition
  • A chef must consider food composition in its
    entirety
  • Organic or inorganic composition
  • Its pedigree
  • Foods contain a variety of chemical molecules
  • Water, fats, carbohydrates and proteins

7
Advancements in Food Science and Technology
4.2 Maslows Hierarchy of Needs
8
Combating World Hunger
  • United Nations has set a goal of reducing the
    number of hungry people
  • Starvation is decreasing, but undernourished
    people are increasing
  • Estimates indicate one in seven people do not
    have enough nourishment on a daily basis

9
Combating World Hunger (contd.)
  • Global Alliance for Improved Nutrition (GAIN)
  • Created to combat vitamin and mineral deficiency
  • Leadership hub bringing together different
    organizations
  • Disburses funds to developing countries to build
    food markets and fortify foodstuffs

10
Technological Advances in Food Production
  • Methods of increasing agricultural yields
  • Hydroponics
  • Growing plants without using soil
  • Water is medium used to grow the plants
  • Aquaculture
  • Fish farming in specially controlled environment
  • Biotechnology
  • Genetically modified plants

11
4.4 Drawing of Hydroponic System
12
Human Health and Food Safety
  • Food engineering
  • Done for increased yields, pest resistance and
    increased shelf life
  • Genetically modified organisms (GMOs)
  • DNA transferred from one plant or animal to
    another

13
Human Health and Food Safety (contd.)
  • Cloned Farm Animals
  • Milk and meat tentatively concluded safe by the
    FDA
  • Food Allergen Labeling and Consumer Protection
    Act (FALCPA)
  • Requires presence of common allergens be included
    on the food label

14
Human Health and Food Safety (contd.)
  • Food allergens
  • Food service operators not currently required to
    post warnings
  • Growth-enhancing hormones
  • Natural steroids added to feed of beef and milk
    animals
  • Banned in E.U. but allowed in U.S.

15
Human Health and Food Safety (contd.)
  • Food irradiation
  • Reduces disease causing germs in food
  • High levels of radiant energy kills
    microorganisms without raising temperature of the
    food
  • FDA requires that irradiated foods be labeled as
    such

16
Cultural Heritage
  • Parts of society we want to keep, appreciate, and
    pass on to future generations
  • Tourism draws on cultural heritage
  • Local food service operations can protect
    cultural heritage by preparing local foods native
    to their region

17
Environmental Protection
  • Commitment to preserve and renew natural
    resources
  • Ecology
  • Study of the interaction between living things
    and their physical environment
  • Biodiversity
  • Number of species is declining

18
Environmental Protection (contd.)
  • Monoculture
  • Practice of growing the same crop on the same
    fields year after year
  • Need additional chemicals for pest control and
    fertilizers for soil quality
  • Risk that pests will become resistant to the
    chemicals and destroy crops

19
Environmental Protection (contd.)
  • Sustainable agriculture
  • Steps to maintain high yields without destroying
    the soil or decreasing productivity
  • Examples crop rotation planting cover crops
    using natural predators instead of chemicals
  • Conservation
  • Conserving food frees up more for others

20
Environmental Protection (contd.)
  • 20 percent of food is wasted each year
  • Left in fields or orchards
  • Lost during manufacturing, storage, or
    transportation
  • Wasted during final preparation in homes or
    restaurants

21
Environmental Protection (contd.)
  • Organics
  • No chemical fertilizers or pesticides
  • Minimally processed
  • Before the 1940s, all farming was organic
  • National Organic Program implemented in 2002
  • Provides guidelines and certifications

22
Environmental Protection (contd.)
  • Sustainability and greening initiatives
  • National Restaurant Association (NRA) launched a
    campaign for sustainability in 2008
  • National nonprofit Green Restaurant Association
    (GRA) formed in 1990
  • All new Starbucks buildings will be certified by
    the U.S. Green Building Council

23
Summary
  • Food is one of the most basic human needs
  • Number of undernourished people in the world is
    one in seven
  • Several international organizations working to
    reduce world hunger
  • Food allergen labeling is mandated

24
Summary (contd.)
  • Hydroponics, aquaculture, and biotechnology are
    methods employed to increase agricultural yields
  • Sustainable agriculture uses methods designed to
    preserve environment
  • Examples of green practices
  • Conservation, waste reduction
Write a Comment
User Comments (0)
About PowerShow.com