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Wiley InterScience

Journal of Food Science

Journal of Food Science

Volume 73 Issue 5, Pages S222 - S228

Published Online: 19 May 2008

© 2010 Institute of Food Technologists®



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Effects of Fruit Maturity on Watermelon Ultrastructure and Intracellular Lycopene Distribution
D.V. Bangalore 1 , W.G. McGlynn 1 , and D.D. Scott 1
  1 Author Bangalore is with General Mills Inc., Meals Div., P.O. Box 9452, Minneapolis, MN 55440, U.S.A. Authors McGlynn and Scott are with Oklahoma State Univ., Robert M. Kerr Food and Agricultural Products Center, Stillwater OK 74078, U.S.A. Direct inquiries to author McGlynn (E-mail: william.mcglynn@okstate.edu).
Copyright © 2008 Institute of Food Technologists
KEYWORDS
chromoplasts • lycopene • maturity • ultrastructure • watermelon

ABSTRACT

ABSTRACT: This study employed transmission electron microscopy (TEM) to conduct research on the ultrastructure of watermelon (cultivar: Hazera SW1) mesocarp samples of different maturities. Micrographs from immature fruit showed incompletely formed chromoplasts. A combination of distinct pigment-bearing chromoplasts and incompletely formed chromoplasts was observed in mature watermelon micrographs. Electron micrographs showed chromoplasts changing from a less organized globular form in immature to a symmetrical form in mature to an asymmetrical form in overmature watermelons. This study furthers our understanding of watermelon physiology and the effect of maturity on compartmentalization of lycopene.


MS 20070962 Submitted 12/21/2007, Accepted 3/18/2008

DIGITAL OBJECT IDENTIFIER (DOI)
10.1111/j.1750-3841.2008.00778.x About DOI

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