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
Monitoring heart failure from home
Sometimes, the best way to prevent a visit to the...
scopeblog.stanford.edu
High-level commission focuses on law's power to significantly improve world's health
Law should be viewed as a major determinant of health...
medicalxpress.com
Concerns over UK government plan to increase participation in school rugby
The UK government plan to fund and to increase participation...
medicalxpress.com
Have we achieved the millennium development goals?
As the deadline for the millennium development goals approaches, experts...
medicalxpress.com
Link between serotonin and depression is a myth, says top psychiatrist
The widely held belief that depression is due to low...
medicalxpress.com
Pelzman's Picks: The 'Sound' of Cancer, Cold Comfort Shots
(MedPage Today) -- Also, the implications of SGR repeal, primary...
medpagetoday.com
Blue Bell says it's still trying to pinpoint listeria cause
A massive recall has brought more attention and put more...
medicalxpress.com
First case of rabies in over a decade: Lessons for healthcare personnel
A team of French clinicians has diagnosed the first case...
medicalxpress.com
Melanoma Patients See Better Outcomes With Combo Tx (CME/CE)
(MedPage Today) -- Two agents, ipilimumab plus nivolumab, bested single...
medpagetoday.com
Protein identified that serves as a 'brake' on inflammation
Researchers have identified a protein that offers a new focus...
medicalxpress.com
Parkinson's patient experiences symptom relief with new medication
To date, a cure for Parkinson's disease remains elusive for...
medicalxpress.com
Depression raises risk of poor outcomes for blacks with heart failure
Among black heart failure patients, moderate depression may increase the...
medicalxpress.com
Perrigo rejects $29B offer from generic drugmaker Mylan
Over-the-counter medicines maker Perrigo is turning down a buyout offer...
medicalxpress.com
Neurologists Back FDA on Call for ALS Drug Data
(MedPage Today) -- Experts want Genervon to release all of...
medpagetoday.com
Stanford bioengineer discusses mining social media and smartphone data for biomedical research
During the 2014 Big Data in Biomedicine conference, Stanford bioengineer...
scopeblog.stanford.edu
FDA Panel Gets Earful on Homeopathy
(MedPage Today) -- Speakers ranged from harsh critics to vocal...
medpagetoday.com
New Orleans going smoke-free in bars, other public places
Smoking in bars and casinos is coming to an end...
medicalxpress.com
Enbrel Aids in JIA Subtype (CME/CE)
(MedPage Today) -- A 35% reduction in flare risk in...
medpagetoday.com
Study supports HPV vaccination guidelines
(HealthDay)—New research finds that young women who get the HPV...
medicalxpress.com
Stroke Rounds: Sleep Apnea Tx May Cut Afib Recurrence (CME/CE)
(MedPage Today) -- Meta-analysis establishes continuous positive airway pressure as...
medpagetoday.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 +