Transcript Describing the World Food and Fiber System

Lesson 1
Understanding World
Agricultural Production
Common Core/Next Generation Science Standards
Addressed!
RST.6‐8.1 Cite specific textual evidence to support analysis of science
and technical texts. (MS-LS2-2)
WHST.6‐8.2 Write informative/explanatory texts to examine a topic and
convey ideas, concepts, and information through the selection,
organization, and analysis of relevant content. (MS-LS2-2)
WHST.6‐8.8 Gather relevant information from multiple print and digital
sources; assess the credibility of each source; and quote or paraphrase
the data and conclusions of others while avoiding plagiarism and
providing basic bibliographic information for sources. (MS-LS1-8)
6.RP.A.3 Summarize numerical data sets in relation to their context.
(MS-LS2-2)
Bell Work!
Identify the scope of the food industry.
Identify government requirements and
other assurances of food quality and
sanitation.
Describe various methods of food
preservation.
What Food Plants would be inspected in
New Mexico
Interest Approach
From start to finish, trace the path
of your last meal from growth of the
products to processing and
transportation.
How many people were involved in
bringing you your last meal?
Terms
Aseptic
Canning
Cold processing
Dehydration
Distributor
Environmental Protection Agency (EPA)
Food and Drug Administration (FDA)
Terms Continued
Fermentation
Food industry
Freezing
Freeze drying
Grader
Harvester
Heat processing
Terms Continued
Immersion
Irradiation
National Marine Fisheries Service
(NMFS)
Packer
Pasteurization
Processor
Producer
Terms Continued
Pickling
Retailer
Sharp freezing
Trucker
United States Department of Agriculture
(USDA)
Wholesaler
Food Industry
The food industry is
the industry involved
in the production,
processing, storage,
preparation, and
distribution of food
for consumption by
living things
Producer
The producer grows
the crop and
determines its
readiness for
harvest.
Harvester
The harvester
removes the edible
portions from the
plant in the field.
Trucker
The trucker is
responsible for
transportation of the
product anywhere
along the way from
farm to consumer.
Packer
The packer is
responsible for
inserting the food
into containers such
as boxes or bins for
shipment to the
processing plant.
Grader
The grader inspects
the food for
freshness and
determines size and
quality.
A grader establishes
under what criteria
the food will be sold
and consumed.
Processor
The processor is
involved in cleaning,
separating,
handling, and
preparing a food
product before it is
ready to be sold to
the distributor.
Distributor
The distributor
stores the food until
a request is
received to transport
the food to a
regional market.
Retailer
The retailer sells
directly to the
consumer.
The retailer is at the
end of the marketing
chain.
USDA Grading System
USDA = United States Department of Agriculture!
Grades are based on quality standards.
Standards are established for meat,
cattle, wool, poultry, eggs, and dairy
Grades are established based on
quality of the products. They indicate
freshness, potential flavor, texture, and
uniformity in size and weight (depending
on the commodity).
USDA Inspection
Quality assurance programs
administered by the USDA include
inspection of slaughtering houses and
processing plants and oversight of
processing operations.
The regulation of food products is
undertaken by local, state, national, and
international governmental regulatory
agencies.
Environmental
Protection Agency
Regulates water safety,
waste treatment, and
pest management
involved with food
processing plants.
The EPA determines
the safety of new
pesticides and sets
tolerance levels for
pesticide residues in
foods.
Food and Drug
Administration
Regulates foods, drugs,
cosmetics, biological
products, medical
devices, radiological
devices, and veterinary
products sold in
interstate commerce.
The
FDA is responsible for
bottled water, labeling
of foods, and the safety
of all food products
except meat and
poultry.
National Marine
Fisheries Service
Inspection program
for fish and seafood.
Responsible for
fisheries
management and
development, as
well as habitat
conservation and
aquaculture
production.
Local Health
Departments
Local health
departments inspect
and license
restaurants and
grocery stores.
Food Preservation
Many methods to improve factors of
food spoilage.
The primary strategies of preservation
include freezing, cold processing, heat
processing, and irradiation.
Freezing
Requires a
temperature of less
than 0°F, an air-tight
environment.
Freezing may be
done by immersion,
indirect contact,
sharp freezing, and
freeze-drying.
Immersion
Immersion
means to cover
completely. The
product is placed
directly
into a very cold
liquid solution,
such as liquid
nitrogen.
Sharp Freezing
Sharp freezing is done
directly in the air at
temperatures of –23 to
–30°F. The product is
frozen with blasts of air
and then poured into
packaging. Peas and beans
are commonly
preserved this way.
Freeze Drying
Freeze drying is a
kind of freezing that
removes the water
from the
product.
The product is
frozen very quickly
in a special
chamber.
Heat Processing
There are three common
techniques used in heat processing.
Canning
Dehydration
Aseptic
Canning
Canning is heating both the food
product and the container in which the
food
has been placed.
Dehydration
Dehydration is the almost complete
removal of water from the food product.
Aseptic
Aseptic involves sterilizing food before it
is packaged.
The food is heated very
quickly using special equipment.
Irradiation
Irradiation is exposing food to radiant
energy to kill microorganisms without
contaminating food.
Irradiation kills pathogens throughout
the product from the surface to the
center. Currently, controversy exists
regarding the irradiation of foods.
Other Methods
Fermentation
involves the growth
of beneficial
microorganisms.
Pickling involves
high salt
concentrations.
Pasteurization is
used to kill
microorganisms in
most milk and other
liquids.