相关实验视频

Updated: May 29, 2025

PTR-ToF-MS Coupled with an Automated Sampling System and Tailored Data Analysis for Food Studies: Bioprocess Monitoring, Screening and Nose-space Analysis

PTR-ToF-MS Coupled with an Automated Sampling System and Tailored Data Analysis for Food Studies: Bioprocess Monitoring, Screening and Nose-space Analysis

Published on: May 11, 2017

意大利阿尔卑斯山牛奶的化物概况

Tiziana Nardin¹, Edi Piasentier², Alberto Romanzin²

¹Centro Trasferimento Tecnologico, Fondazione E. Mach, San Michele all'Adige, Italia.

Journal of food science

|February 4, 2025

概括

从高山草药转移到牛奶中的类化合物是最小的,不构成健康风险. 然而,这些化物样本可以作为独特的标记,用于追踪山地乳制品的地理来源.

科学领域:

农业科学农业科学
食品化学食品化学
分析化学分析化学

背景情况:

动物料中的化物可以影响牛奶的成分和安全性.
食品的地理可追溯性对消费者和行业来说越来越重要.

研究的目的:

为了研究高山牛奶和相关草药中的化物概况.
评估不同类型的化物从牧场转移到牛奶的转移率.
评估化物配置文件作为高山牛奶地理可追溯性的标记物的潜力.

主要方法:

每天从两个不同的高山牧场的奶牛收集牛奶样本.
由放牧奶牛挑选的高山草本的收集.
使用液态染色学与高分辨率质谱学 (LC-HRMS) 结合分析牛奶和草本样本.
统计分析,包括部分最小平方区分分析 (PLS-DA),以根据化物概况区分牛奶样本.

主要成果:

在牛奶和草药中发现了41种化物,并推测发现了116种其他化物.
从草药转移到牛奶中的化物转移量化:pyrrolizidine为0.4%,indole为2.7%,类固醇化物为12%.
一个PLS-DA模型成功地将67%的牛奶样本根据它们的原产地牧场根据类化合物概况重新分类.

结论:

从高山草药中转移到牛奶中的类化合物是最小的,这表明消费者的健康方面是积极的.
阿尔卑斯山牛奶中的化物概况显示出作为可靠的标记物来验证乳制品的地理来源的潜力.
这项研究支持提高山地牧场产品的真实性和防止欺诈.

关键词:

类化合物是一种类化合物.阿尔卑斯山地区的阿尔卑斯山牛奶牛奶牛奶牛奶

更多相关视频

Detection of Regulated Ergot Alkaloids in Food Matrices by Liquid Chromatography-Trapped Ion Mobility Spectrometry-Time-of-Flight Mass Spectrometry

Detection of Regulated Ergot Alkaloids in Food Matrices by Liquid Chromatography-Trapped Ion Mobility Spectrometry-Time-of-Flight Mass Spectrometry

Published on: November 22, 2024

An Efficient Single—Person Technique for Milk Sampling from Laboratory Mice

An Efficient Single—Person Technique for Milk Sampling from Laboratory Mice

Published on: March 28, 2025

相关概念视频

Qualitative Analysis

Qualitative Analysis

For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...

Composition of Polyprotic Acid Solutions as a Function of pH

Composition of Polyprotic Acid Solutions as a Function of pH

Polyprotic acids of the type H2M constitute two ionizable protons. As a result, on titration with a base, they exhibit two equivalence points in the titration curve. During titration, the species H2M, HM−, and M2− will be present in the solution at different points. The fractions of H2M, HM−, and M2− present at the various instances of the titration are denoted by α0, α1, and α2, respectively.
A graph with the alpha values is plotted against the volume of...