Analysis of Fruits and Vegetables
In nutrition, synergetic effects play an important role
A minimal amount of 400 g of fruits and vegetables per day
(starch containing tubes excluded) is a natural source of
valuable fibers, vegetable proteins and protective micronutrients.
Therefore, the consumption of fruits and vegetables can help
to prevent us from major diseases (cardiovascular diseases)
and certain cancers.
The kind of minerals and ions present in a fruit or vegetable
also depend on the soil the plant is growing on. Besides the
natural minerals, fruit and vegetables can also contain highly
toxic heavy metals as lead or mercury. It’s a
matter of concentration, whether a metal is toxic
or not: On one hand our body absolutely needs zinc as an essential
trace element. On the other hand zinc being present in too
high levels will interfere with the metabolism of other minerals
in the body (iron and copper) and is under this circumstances
toxic.
An important role also plays storage and conservation of
fruits and vegetables which are also possible sources for
contamination as in case of using tin plate for cans.
Reliable and well proven analysis of fruits and vegetables
The vitamin C concentration in fruit as
well as a huge number of anions and cations
present in fruit can be determined by ion chromatography,
titration or voltammetry / polarography.
- Due to its high sensitivity, voltammetry
and polarography are the first choice in trace metal
analysis.
- Titration on the other hand provides
an easy and cheap way to analyze major minerals
in fruits and vegetables.
- When it comes to nitrate analysis or
the analysis of different ions concomitantly, then ion
chromatography plays its trump.
Metrohm can offer you all these different analysis techniques.
From Metrohm you get more than reliable and innovative laboratory
equipment with outstanding performance. You can also
profit from our fundamental experience and knowledge. Our
free Monographs, Application Bulletins
and Notes will be a great benefit for your
analysis of fruits and vegetables.
Select your application of interest
|
Food
Analysis 
