Upland Cotton Surface Amino Acid and Carbohydrate Contents vs. Color Measurements

IF 0.7 Q4 AGRICULTURAL ENGINEERING
Donna V. Peralta, J. Rodgers, J. Knowlton, C. Fortier
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引用次数: 1

Abstract

Upland cotton is naturally white, with its yellowness (+b) rating highly influencing its economic value. Field conditions, microorganisms, and growth problems can cause cotton to become discolored at harvest, which has historically been thought to indicate a decrease in product quality. Previous research has suggested that some reactions between amino acids and carbohydrates on the surface of cotton fibers may lead to color development after harvest during certain storage and shipping conditions. There has been a lack of research evidence to understand how initial amounts of those surface constituents present at harvest may indicate the propensity for potential future changes in +b ratings. Due to the monetary implications, it is important for those in the cotton industry to better understand exactly how detrimental the +b value is on the functionality of the cotton. This study aimed to identify potential relationships between the post-harvest surface amino acids and carbohydrates content with color rating values to gain insight using High Volume Instrument (HVI), a portable spectrophotometer, ion chromatography, and a ninhydrin test to compare amino acid and carbohydrate content of 45 upland cotton samples with their color measurements: +b, Rd, and L*a*b*. A correlational statistical analysis found a quadratic relationship between amino acid content and +b; and highly positive correlations between amino acids and +b ratings: 0.8607; and b* values: 0.820 (p<0.05).
陆地棉表面氨基酸和碳水化合物含量与颜色测定
陆地棉是天然白色的,其黄度(+b)等级对其经济价值影响很大。田间条件、微生物和生长问题可能导致棉花在收获时变色,这在历史上被认为是产品质量下降的标志。先前的研究表明,在一定的储存和运输条件下,棉纤维表面的氨基酸和碳水化合物之间的一些反应可能导致收获后的颜色发展。缺乏研究证据来理解这些表面成分在收获时的初始量如何表明未来+b评级潜在变化的倾向。由于货币影响,对于棉花行业的人来说,更好地理解+b值对棉花功能的有害程度是很重要的。本研究旨在通过高容量仪器(HVI)、便携式分光光度计、离子色谱和茚三酮测试来比较45个陆地棉花样品的氨基酸和碳水化合物含量及其颜色测量值:+b、Rd和L*a*b*,以确定收获后表面氨基酸和碳水化合物含量与颜色等级值之间的潜在关系。相关统计分析发现氨基酸含量与+b呈二次关系;氨基酸与+b级呈高度正相关:0.8607;b*值为0.820 (p<0.05)。
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来源期刊
Journal of cotton science
Journal of cotton science AGRICULTURAL ENGINEERING-
CiteScore
0.90
自引率
20.00%
发文量
0
期刊介绍: The multidisciplinary, refereed journal contains articles that improve our understanding of cotton science. Publications may be compilations of original research, syntheses, reviews, or notes on original research or new techniques or equipment.
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