Product category:
Liquid Analysis: Titration, HPLC, IC
News Release from: Metrohm UK | Subject: Titrando on honey
Edited by the Processingtalk Editorial
Team on 12 April 2007
Water determination in sweet products
like honey
Metrohm discusses the benefits derived from honey and the water determination by Karl Fischer methods in sweet products like honey: a typical value for water in honey is 17%
Honey is a sweet treat In fact, it is man's oldest sweetener
This article was originally published on Processingtalk on 2 Jul 2008 at 8.00am (UK)
Related stories
Tighter process control in acid pickling baths
Online ion chromatography from Metrohm has enabled tighter process control of acid pickling baths, as the final cleaning stage prior to metal plating
The determination of acidity in soft drinks
Sparkling drinks are the main cause of increasing tooth erosion among teenagers: a study in the British Dental Journal found a strong link between fizzy drink consumption and tooth erosion
It can be a good substitute for sugar in our drinks and food.
But it is also good for many other things and treating many other conditions.
Reliance on commercialised medicines which contain too many chemicals can become hazardous to our health.
Honey is composed of sugars like glucose and fructose and minerals like magnesium, potassium, calcium, sodium chlorine, sulphur, iron and phosphate.
It contains vitamins B1, B2, C, B6, B5 and B3 all of which change according to the qualities of the nectar and pollen.
Besides the above, copper, iodine, and zinc exist in small quantities.
Several kinds of hormones are also present in it.
Approximately one half of the human diet is derived directly or indirectly from crops pollinated by bees.
Today honeybees are an essential part of a healthy agricultural economy.
If you have allergies, honey can be beneficial.
If you eat honey that is local to your area, it may prevent your seasonal allergies.
Bees use the pollen from local plants and eventually it ends up in your honey.
Honeys must not contain too much water if they are to be protected from microbiological spoilage.
Water determination can be carried out using the tried and tested Karl Fischer technique.
The instrumentation needed is a volumetric Karl Fischer titrator, for example a Metrohm 841 Titrando, and a double platinum pin electrode is used to determine the endpoint.
Titrants used include Hydranal Composite 5.
Methanol is used as the solvent, which is initially titrated to dryness, and then 0.1 - 0.2g of honey is added to the titration cell.
Typical values for water in honey is 17%. Request a free brochure from Metrohm UK ...
• Metrohm UK: contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
