Post-harvest storage effects on guayule latex quality from agronomic trials

C. M. McMahan; K. Cornish; T. A. Coffelt; F. S. Nakayama; R. G. McCoy; J. L. Brichta; D. T. Ray

doi:10.1016/j.indcrop.2006.06.002

Post-harvest storage effects on guayule latex quality from agronomic trials

C. M. McMahan, K. Cornish, T. A. Coffelt, F. S. Nakayama, R. G. McCoy, J. L. Brichta, D. T. Ray

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Current guayule commercialization efforts are based upon the production of hypoallergenic latex. The objective of this study was to determine how latex yield and quality are affected by post-harvest plant storage in order to provide flexibility in the harvesting, chipping, and processing steps for guayule latex. The experiments were conducted on two lines (11591 and AZ-2) at the University of Arizona Maricopa Agricultural Center, from March 2001, through December 2004. Weight-average molecular weight of guayule latex increased as the plants aged from 1.7 to 2.7 years. Guayule latex quality was affected by shrub storage conditions, and addition of moisture extended the storage time for guayule shrub without negatively impacting molecular weight for both varieties. However, under extreme conditions, for example, high temperatures and extended dry storage times, polymer molecular weight reduction of up to 30% occurred.

Original language	English (US)
Pages (from-to)	321-328
Number of pages	8
Journal	Industrial Crops and Products
Volume	24
Issue number	3
DOIs	https://doi.org/10.1016/j.indcrop.2006.06.002
State	Published - Nov 2006

Keywords

Guayule
Latex
Molecular weight
Parthenium argentatum
Shrub storage

ASJC Scopus subject areas

Agronomy and Crop Science

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10.1016/j.indcrop.2006.06.002

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title = "Post-harvest storage effects on guayule latex quality from agronomic trials",

abstract = "Current guayule commercialization efforts are based upon the production of hypoallergenic latex. The objective of this study was to determine how latex yield and quality are affected by post-harvest plant storage in order to provide flexibility in the harvesting, chipping, and processing steps for guayule latex. The experiments were conducted on two lines (11591 and AZ-2) at the University of Arizona Maricopa Agricultural Center, from March 2001, through December 2004. Weight-average molecular weight of guayule latex increased as the plants aged from 1.7 to 2.7 years. Guayule latex quality was affected by shrub storage conditions, and addition of moisture extended the storage time for guayule shrub without negatively impacting molecular weight for both varieties. However, under extreme conditions, for example, high temperatures and extended dry storage times, polymer molecular weight reduction of up to 30% occurred.",

keywords = "Guayule, Latex, Molecular weight, Parthenium argentatum, Shrub storage",

author = "McMahan, {C. M.} and K. Cornish and Coffelt, {T. A.} and Nakayama, {F. S.} and McCoy, {R. G.} and Brichta, {J. L.} and Ray, {D. T.}",

note = "Funding Information: The authors express their appreciation to the Department of Plant Sciences, University of Arizona, the Western Regional Research Center, USDA-ARS, the U.S. Water Conservation Laboratory, USDA-ARS, and the Yulex Corporation, for their support and the permission to publish this work. This research was supported by an Initiative for Future Agriculture and Food Systems consortium grant number 00-52104-9660, {\textquoteleft}Development of Non-allergenic Latex Products from Guayule{\textquoteright}, awarded to the University of Arizona. ",

year = "2006",

month = nov,

doi = "10.1016/j.indcrop.2006.06.002",

language = "English (US)",

volume = "24",

pages = "321--328",

journal = "Industrial Crops and Products",

issn = "0926-6690",

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AU - Cornish, K.

AU - Coffelt, T. A.

AU - Nakayama, F. S.

AU - McCoy, R. G.

AU - Brichta, J. L.

AU - Ray, D. T.

N1 - Funding Information: The authors express their appreciation to the Department of Plant Sciences, University of Arizona, the Western Regional Research Center, USDA-ARS, the U.S. Water Conservation Laboratory, USDA-ARS, and the Yulex Corporation, for their support and the permission to publish this work. This research was supported by an Initiative for Future Agriculture and Food Systems consortium grant number 00-52104-9660, ‘Development of Non-allergenic Latex Products from Guayule’, awarded to the University of Arizona.

PY - 2006/11

Y1 - 2006/11

N2 - Current guayule commercialization efforts are based upon the production of hypoallergenic latex. The objective of this study was to determine how latex yield and quality are affected by post-harvest plant storage in order to provide flexibility in the harvesting, chipping, and processing steps for guayule latex. The experiments were conducted on two lines (11591 and AZ-2) at the University of Arizona Maricopa Agricultural Center, from March 2001, through December 2004. Weight-average molecular weight of guayule latex increased as the plants aged from 1.7 to 2.7 years. Guayule latex quality was affected by shrub storage conditions, and addition of moisture extended the storage time for guayule shrub without negatively impacting molecular weight for both varieties. However, under extreme conditions, for example, high temperatures and extended dry storage times, polymer molecular weight reduction of up to 30% occurred.

AB - Current guayule commercialization efforts are based upon the production of hypoallergenic latex. The objective of this study was to determine how latex yield and quality are affected by post-harvest plant storage in order to provide flexibility in the harvesting, chipping, and processing steps for guayule latex. The experiments were conducted on two lines (11591 and AZ-2) at the University of Arizona Maricopa Agricultural Center, from March 2001, through December 2004. Weight-average molecular weight of guayule latex increased as the plants aged from 1.7 to 2.7 years. Guayule latex quality was affected by shrub storage conditions, and addition of moisture extended the storage time for guayule shrub without negatively impacting molecular weight for both varieties. However, under extreme conditions, for example, high temperatures and extended dry storage times, polymer molecular weight reduction of up to 30% occurred.

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KW - Molecular weight

KW - Parthenium argentatum

KW - Shrub storage

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Post-harvest storage effects on guayule latex quality from agronomic trials

Abstract

Keywords

ASJC Scopus subject areas

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