Differentiation of eggs from organic and conventional production systems using fluorescence excitation spectroscopy (FES)

IF 1.4 4区农林科学 Q3 AGRONOMY

Biological Agriculture & Horticulture Pub Date : 2022-02-07 DOI:10.1080/01448765.2022.2032347

Jenifer Wohlers, P. Stolz, Gudrun Mende

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引用次数: 2

Abstract

ABSTRACT The decay curves of the delayed luminescence of egg yolks after excitation with white, yellow and blue light were investigated, using fluorescence excitation spectroscopy (FES), and the relationships to the origin of the eggs were examined. FES measurements were done by exciting the sample with light of defined wavelengths, representing the colours white (w), blue (bl) and yellow (ye), and the subsequent photon emission was detected. A total of 147 samples (each sample consisted of 10 eggs) were analysed, which originated from samples collected directly from the farm as well as from retail markets. Classification by partitioning and Tukey HSD tests were used to show differences between the origin of the eggs. It was shown that the induced emission of the conventional eggs was different compared with that of the organic eggs, which was reflected especially in the long-time emission parameters R40-w and R80-ye/bl, with lower values for conventional samples. Classification was possible with the parameters R40-w and R80-ye/bl, allowing correct classifications of 91.8% and 95.9% of the samples, respectively.

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用荧光激发光谱(FES)鉴别有机和常规生产系统的鸡蛋

摘要利用荧光激发光谱（FES）研究了蛋黄在白光、黄光和蓝光激发后的延迟发光衰减曲线，并考察了其与鸡蛋来源的关系。FES测量是通过用定义波长的光激发样品来完成的，代表白色（w）、蓝色（bl）和黄色（ye），并检测随后的光子发射。共分析了147个样本（每个样本由10个鸡蛋组成），这些样本来自直接从农场和零售市场收集的样本。通过划分和Tukey HSD测试进行分类，以显示鸡蛋来源之间的差异。结果表明，与有机鸡蛋相比，传统鸡蛋的诱导排放不同，这尤其反映在长期排放参数R40-w和R80-ye/bl上，传统样品的值较低。使用参数R40-w和R80-ye/bl可以进行分类，分别允许91.8%和95.9%的样本进行正确分类。

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来源期刊

Biological Agriculture & Horticulture 农林科学-农艺学

CiteScore

3.30

自引率

6.70%

发文量

审稿时长

>36 weeks

期刊介绍： Biological Agriculture & Horticulture aims to act as the central focus for a wide range of studies into alternative systems of husbandry, and particularly the biological or organic approach to food production. The Journal publishes work of a sound scientific or economic nature related to any aspect of biological husbandry in agriculture, horticulture and forestry in both temperate and tropical conditions, including energy and water utilization, and environmental impact.