Carbon isotope ratios of amylose, amylopectin and mutant starches

dc.contributor.author Jane, Jay-Lin
dc.contributor.author Scott, M. Paul
dc.contributor.author Jane, Jay-Lin
dc.contributor.author Soundararajan, Madhavan
dc.contributor.author Scott, Marvin
dc.contributor.department Food Science and Human Nutrition
dc.contributor.department Agronomy
dc.date 2018-02-18T15:03:58.000
dc.date.accessioned 2020-06-29T23:03:08Z
dc.date.available 2020-06-29T23:03:08Z
dc.date.issued 1999-10-01
dc.description.abstract <p>Carbon isotope ratios (expressed as <em>δ</em>13C values) were determined for various sources of starch and the starch fractions amylose and amylopectin. The <em>δ</em>13C values of amylose were consistently less negative, 0.4–2.3 ‰, than those of amylopectin in kernal starch from maize (<em>Zea mays</em>) and barley (<em>Hordeum vulgare</em>) and in tuber starch from potato (<em>Solanum tuberosum</em>). Kernel starch isolated from the maize mutants <em>wx1</em> and <em>ae1</em>, with known genetic lesions in the starch biosynthetic pathway, also showed significant differences in <em>δ</em>13C values. Collectively, these results suggest that variation in carbon isotope ratios in the amylose and amylopectin components of starch may be attributed to isotopic discrimination by the enzymes involved in starch biosynthesis.</p>
dc.description.comments <p>This article is published as Scott, M. Paul, Jay-Lin Jane, and Madhavan Soundararajan. "Carbon isotope ratios of amylose, amylopectin and mutant starches." <em>Phytochemistry</em> 52, no. 4 (1999): 555-559, doi: <a href="https://doi.org/10.1016/S0031-9422(99)00271-X" target="_blank" title="Persistent link using digital object identifier">10.1016/S0031-9422(99)00271-X</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/174/
dc.identifier.articleid 1170
dc.identifier.contextkey 10439671
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/174
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/4504
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/174/1999_Scott_CarbonIsotope.pdf|||Fri Jan 14 21:22:12 UTC 2022
dc.source.uri 10.1016/S0031-9422(99)00271-X
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Food Chemistry
dc.subject.disciplines Plant Breeding and Genetics
dc.subject.keywords Zea mays
dc.subject.keywords Hordeum vulgare
dc.subject.keywords Solanum tuberosum
dc.subject.keywords Oryza sativum
dc.subject.keywords Carbon isotope ratios
dc.subject.keywords Starch
dc.subject.keywords Amylose
dc.subject.keywords Amylopectin
dc.title Carbon isotope ratios of amylose, amylopectin and mutant starches
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 7e504628-4633-4f5e-b092-a2ac15297649
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relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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