GID 607E POSTHARVEST PHYSIOLOGY OF FRUITS AND VEGETABLES

 

Catalog Data:

Fresh fruits and vegetables have living tissues in which complex biochemical and physiological reactions take place.  These reactions determine the storage life and quality of harvested fruits and vegetables.  This course teaches the postharvest changes in fresh fruits and vegetables, factors affecting them, and technologies applied to control them for extension of storage life and retention of premium quality.

 

Prerequisites: An introductory biochemistry course

 

Language: English

 

References:

 

  1. Journal articles
  2. Kays, S.J. 1997. Postharvest Physiology of Perishable Plant Products. Exon Press, Athens, Ga. 
  3. Raven, P.H., Evert, R.F. and Eichhorn, S.E. 1986.  Biology of Plants.  Worth Publishers, Inc. New York.
  4. Anderson, J.W. and Beardal, J.  1991.  Molecular Activities of Plant Cells: an introduction to plant biochemistry.  Blackwell Scientific Publications, London.
  5. Fennema, O.R. 1985.  Food Chemistry.  Marcel Dekker Inc, New York.
  6. Lehninger, A.L., Nelson, D.L., and Cox, M.M.  1997.  Principles of Biochemistry, 2nd Edition.  Worth Publishers, New York, NY.
  7. Wiley, R.C. 1994.  Minimally Processed Refrigerated Fruits and Vegetables.  Chapman & Hall, New York.
  8. Calderon, M. and Barkai-Golan, R. 1990.  Food Preservation by Modified Atmospheres.
  9. Metabolic pathways: http://www.udel.edu/chem/white/C643/MetabPathways.html , http://www.gwu.edu/%7Empb/index.html

 

Course Objectives:

 

 

Tentative Course outline:

 

Week

Topics

1

Introduction: General Biochemistry of plant cells

2

Respiratory metabolism

3

Ethylene biosynthesis and action

4

Changes in cell membrane

5

Changes in color

6

Changes in flavors

7

Changes in texture

8

Effects of minimal processing on biochemical changes

9

Midterm exam

10

Postharvest treatments to increase storage life

11

Cold storage practices: chilling injury, freezing injury

12

Controlled atmosphere storage; Coating and modified atmosphere packaging

13

Use of ionizing radiation on fresh produce

14

Term paper presentations

 

Class Schedule:

Classes are held in one session per week; 3 class hours in one session

 

Evaluation:

Term paper* 20%

Midterm exam 40%

Final Exam 40%

 

*students will chose a topic of interest related to the course content to write a review article (in Turkish), and do a short presentation in class.

 

Prepared by: Assist. Prof. Dr. Gürbüz Güneş

Date: September, 2006.