Statistical Analysis

SGF Profiling

NMR Based Fruit Juice Quality Control

: Verification of a sample (black trace): unusual high amount of phlorin indicates the usage of orange peel. The model set is drawn as colored quantile-plot.

Targeted and Non-Targeted Multi Marker Analysis

SGF Profiling delivers a standard targeted multi-marker analysis incorporating absolute quantification of:

Sugars (glucose, fructose, sucrose)
Main fruit acids (citric acid, malic acid, isocitric acid, quinic acid)
Perishable indicators (ethanol, fumaric acid, lactate, HMF)
Process control parameters (galacturonic acid, phlorin)

In addition the technique allows a non-targeted multi marker approach that is based on the simultaneous assessment of concentration deviations of hundreds of compounds. In contrast to targeted standard analytical routines, it can detect the appearance of unexpected ingredients to enable the detection of unknown fraud.

Push-Button Routine

: Origin authentification of orange juice

SGF Profiling is a fully automated push-button routine that needs no interaction by the operator. From sample bar code registration, preparation and handling, to data acquisition and statistical evaluation, all steps are under the control of SampleTrack™, Bruker’s laboratory information system.

Spectroscopic Database

The screening is based on an extensive spectroscopic database that includes thousands of NMR spectra from mainly authentic juices. Currently the data base includes about 40 different fruit types from more than 50 production sites worldwide. In addition, the database also provides access to over hundreds of small molecule compounds for further analysis of unknown ingredients.