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两种光谱仪器可以在种族和种族多样化的样本中大致估计水果和蔬菜的摄入量

Stephanie B Jilcott Pitts¹, Qiang Wu¹, Melissa N Laska²

¹Department of Public Health, East Carolina University, Greenville, NC, United States.

Current developments in nutrition

|July 14, 2025

概括

通过光谱测量测量皮肤黄色度可以接近水果和蔬菜摄入量 (FVI). 这一客观测量显示了与血类胡卜素的显著相关性,支持其在营养研究中的使用.

科学领域:

营养生物化学营养生物化学
生物标志物生物标志物
饮食评估饮食评估

背景情况:

准确评估水果和蔬菜摄入量对于评估营养干预措施至关重要.
针对FVI的目标生物标志物是有限的,需要进一步验证.
之前的研究没有直接比较同一参与者内的客观FVI措施.

研究的目的:

为了比较两个皮肤光谱仪器作为血中胡卜素度生物标志物的相对有效性.
评估产品接近自我报告的水果和蔬菜摄入量 (FVI) 和胡卜素摄入量的能力.
确定皮肤光谱光度测能否作为FVI的可靠客观测量.

主要方法:

利用了两项先前研究中人类皮肤胡卜素分数 (SCS) 和色彩空间测量的现有数据.
使用Konica Minolta CM 700D光谱相仪测量了皮肤颜色参数 (亮度,红色,黄色).
通过食物频率调查问卷分析了皮肤颜色参数,SCS,血类胡卜素和自我报告的FVI和胡卜素摄入量之间的相关性.

主要成果:

皮肤黄色与SCS (r=0.60-0.67) 和各种血类胡卜素 (r=0.30-0.57) 有显著的正相关性,不包括柳科.
皮肤黄色与FVI (r=0.27) 以及SCS和血类胡卜素的变化也有积极的相关性.
皮肤轻度和红色与所有测量的胡卜素和摄入量变量存在微弱的相关性.

结论:

皮肤光谱仪器,特别是测量皮肤黄色,可以有效地估计水果和蔬菜摄入量 (FVI).
需要进一步的研究来澄清为什么这些设备可能无法准确检测血中毒素水平.
这项研究已在clinicaltrials.gov (NCT04056624) 上注册.

关键词:

贝塔胡卜素是一种β-胡卜素.摄入的水果和蔬菜摄入量这种药物是柳科 (Lycopene).血中的胡卜素.皮肤上的胡卜素是皮肤上的胡卜素.频谱学是一种光谱学.

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