Quantcast Figure 1-5. Growth curve of microorganisms. - Preservation of Foods

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
Figure 1-5. Growth curve of microorganisms.
(1)  During a period of one to several hours, there is a lag phase in which
there is little or no increase in cell numbers. During this phase, the cells are becoming
adjusted to a new environment.
(2)  The log (logarithmic) phase is a period of rapid growth. The growing
cells divide and continue to do so at regular intervals until maximum growth can be
supported. In this phase, the microorganisms are well adjusted to their environment
and are able to multiply rapidly.
(3)  The stationary phase is one in which the population remains unchanged.
The rate of reproduction equals the death rate in this phase.
(4)  The decline (death) phase occurs when the death rate exceeds the rate
of reproduction.
b. Ways to Lengthen the Lag Phase. Growth control is important in food
preservation. Prevention or delaying food spoilage is accomplished by lengthening the
lag phase as much as possible. This can be done in several ways:
(1)  By the introduction of as few spoilage organisms as possible, that is by
reducing the amount of contamination. The fewer organisms present, the longer the lag
phase.
(2)  By avoiding the addition of actively growing organisms, which may be
growing on unsanitary containers, equipment, or utensils with which food comes in
contact.
MD0703
1-15



Medical News
Pollution, smoking, roads, obesity kill 4.7m Chinese a year
Air pollution, smoking, obesity and accidents, especially on the road,...
medicalxpress.com
A VA exit strategy
As the federal government plans its exit strategy from the...
medicalxpress.com
Real tremors, or drug-seeking patient? New app can tell
A 42-year-old investment banker arrives at the emergency department with...
medicalxpress.com
Researchers identify origin and purpose of the facial expression for anger
The next time you get really mad, take a look...
medicalxpress.com
Socioeconomic status and gender are associated with differences in cholesterol levels
A long-term lifestyle study reports differences between the sexes when...
medicalxpress.com
Some women still don't underststand 'overdiagnosis' risk in breast screening
A third of women who are given information about the...
medicalxpress.com
Medical students start “transformational” journey
The new school year has begun for students across the...
scopeblog.stanford.edu
Plain cigarette packs don't hurt small retailers or boost trade in illicit tobacco
Plain packs for tobacco products don't hurt small retailers, flood...
medicalxpress.com
High dietary salt may worsen multiple sclerosis symptoms
High dietary salt intake may worsen multiple sclerosis symptoms and...
medicalxpress.com
New model predicts patients with type 1 diabetes who will go on to develop major complications
New research published in Diabetologia (the journal of the European...
medicalxpress.com
Video game accessory may help multiple sclerosis patients reduce falls, boost brain connections
Nintendo’s Wii Balance Board has helped get people off the...
scopeblog.stanford.edu
Study finds shortcomings in doctor-patient discussions about transplantation
In a study of dialysis patients, those who reported that...
medicalxpress.com
Molecular method classifies patients with polycythemia vera
(HealthDay)—Patients with polycythemia vera can be classified according to disease...
medicalxpress.com
Guidelines presented for diagnosing focal liver lesions
(HealthDay)—Focal liver lesions (FLLs) are mostly benign, and can be...
medicalxpress.com
Donated livers not harmed by travel distances, study finds
(HealthDay)— Transporting donated livers long distances does not affect the...
medicalxpress.com
CDC: Toddlers' Vaccine Coverage Holds Steady
(MedPage Today) -- Most childhood vaccination rates appeared stable in...
medpagetoday.com
Sensory deficits common in patients with multiple myeloma
(HealthDay)—Treatment-naive patients with multiple myeloma (MM) frequently have sensory deficits,...
medicalxpress.com
African-Americans have worse cervical spine surgery outcomes
(HealthDay)—African-American patients have significantly higher rates of in-hospital complications and...
medicalxpress.com
Most US babies get their vaccines, CDC says
(HealthDay)—The vast majority of American babies are getting the vaccines...
medicalxpress.com
Deadly remedy: Warning issued about Chinese herbal medicine
A herbal preparation prescribed by a Chinese herbal medication practitioner...
medicalxpress.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +