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Rapid screening of sixty potato cultivars for starch profiles to address a consumer glycemic dilemma

Potatoes are a dietary staple consumed by a significant portion of the world, providing valuable carbohydrates and vitamins. However, most commercially produced potatoes have a high content of highly branched amylopectin starch, which generally results in a high glycemic index (GI). Consumption of f...

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Autores principales: Rivas, Rocio, Dratz, Edward, Wagner, Thomas, Secor, Gary, Leckband, Amanda, Sands, David C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10202311/
https://www.ncbi.nlm.nih.gov/pubmed/37216356
http://dx.doi.org/10.1371/journal.pone.0255764
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author Rivas, Rocio
Dratz, Edward
Wagner, Thomas
Secor, Gary
Leckband, Amanda
Sands, David C.
author_facet Rivas, Rocio
Dratz, Edward
Wagner, Thomas
Secor, Gary
Leckband, Amanda
Sands, David C.
author_sort Rivas, Rocio
collection PubMed
description Potatoes are a dietary staple consumed by a significant portion of the world, providing valuable carbohydrates and vitamins. However, most commercially produced potatoes have a high content of highly branched amylopectin starch, which generally results in a high glycemic index (GI). Consumption of foods with high levels of amylopectin elicit a rapid spike in blood glucose levels, which is undesirable for individuals who are pre-diabetic, diabetic, or obese. Some cultivars of potatoes with lower amylopectin levels have previously been identified and are commercially available in niche markets in some countries, but they are relatively unavailable in the United States and Latin America. The high glycemic index of widely available potatoes presents a problematic “consumer’s dilemma” for individuals and families that may not be able to afford a better-balanced, more favorable diet. Some native communities in the Andes (Bolivia, Chile, and Peru) reportedly embrace a tradition of providing low glycemic tubers to people with obesity or diabetes to help people mitigate what is now understood as the negative effects of high blood sugar and obesity. These cultivars are not widely available on a global market. This study examines 60 potato cultivars to identify potatoes with low amylopectin. Three independent analyses of potato starch were used: microscopic examination of granule structure, water absorption, and spectrophotometric analysis of iodine complexes to identify potato cultivars with low amylopectin Differences among cultivars tested were detected by all three types of analyses. The most promising cultivars are Huckleberry Gold, Muru, Multa, Green Mountain, and an October Blue x Colorado Rose cross. Further work is necessary to document the ability of these low amylopectin cultivars to reduce blood glucose spike levels in human subjects.
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spelling pubmed-102023112023-05-23 Rapid screening of sixty potato cultivars for starch profiles to address a consumer glycemic dilemma Rivas, Rocio Dratz, Edward Wagner, Thomas Secor, Gary Leckband, Amanda Sands, David C. PLoS One Research Article Potatoes are a dietary staple consumed by a significant portion of the world, providing valuable carbohydrates and vitamins. However, most commercially produced potatoes have a high content of highly branched amylopectin starch, which generally results in a high glycemic index (GI). Consumption of foods with high levels of amylopectin elicit a rapid spike in blood glucose levels, which is undesirable for individuals who are pre-diabetic, diabetic, or obese. Some cultivars of potatoes with lower amylopectin levels have previously been identified and are commercially available in niche markets in some countries, but they are relatively unavailable in the United States and Latin America. The high glycemic index of widely available potatoes presents a problematic “consumer’s dilemma” for individuals and families that may not be able to afford a better-balanced, more favorable diet. Some native communities in the Andes (Bolivia, Chile, and Peru) reportedly embrace a tradition of providing low glycemic tubers to people with obesity or diabetes to help people mitigate what is now understood as the negative effects of high blood sugar and obesity. These cultivars are not widely available on a global market. This study examines 60 potato cultivars to identify potatoes with low amylopectin. Three independent analyses of potato starch were used: microscopic examination of granule structure, water absorption, and spectrophotometric analysis of iodine complexes to identify potato cultivars with low amylopectin Differences among cultivars tested were detected by all three types of analyses. The most promising cultivars are Huckleberry Gold, Muru, Multa, Green Mountain, and an October Blue x Colorado Rose cross. Further work is necessary to document the ability of these low amylopectin cultivars to reduce blood glucose spike levels in human subjects. Public Library of Science 2023-05-22 /pmc/articles/PMC10202311/ /pubmed/37216356 http://dx.doi.org/10.1371/journal.pone.0255764 Text en © 2023 Rivas et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Rivas, Rocio
Dratz, Edward
Wagner, Thomas
Secor, Gary
Leckband, Amanda
Sands, David C.
Rapid screening of sixty potato cultivars for starch profiles to address a consumer glycemic dilemma
title Rapid screening of sixty potato cultivars for starch profiles to address a consumer glycemic dilemma
title_full Rapid screening of sixty potato cultivars for starch profiles to address a consumer glycemic dilemma
title_fullStr Rapid screening of sixty potato cultivars for starch profiles to address a consumer glycemic dilemma
title_full_unstemmed Rapid screening of sixty potato cultivars for starch profiles to address a consumer glycemic dilemma
title_short Rapid screening of sixty potato cultivars for starch profiles to address a consumer glycemic dilemma
title_sort rapid screening of sixty potato cultivars for starch profiles to address a consumer glycemic dilemma
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10202311/
https://www.ncbi.nlm.nih.gov/pubmed/37216356
http://dx.doi.org/10.1371/journal.pone.0255764
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