Analysis of Food Additives

A wide variety of additives, such as preservatives, flavor enhancers, coloring agents and antioxidants, are used on foods. Strict monitoring of food stuffs is essential to detect the use of prohibited chemicals. Each country assigns a unique number or code of approved chemicals for that country. Shimadzu offers a wide range of products for detecting the prohibited chemicals, whether they were added intentionally or through contamination.

Simultaneous Analysis of Sweeteners (LC-MS/MS)

Triple Quadrupole LC-MS/MS LCMS-8060

Triple Quadrupole LC-MS/MS
LCMS-8060

A wide range of low-calorie sweeteners are often used in foods. They are used together with sugars, and multiple sweeteners are combined to regulate flavors. This example shows the simultaneous analysis of 16 sweeteners. Good linearity was obtained with a correlation coefficient of 0.997 or higher for all the compounds

Compound Name Polarity Transition
Holding Time
(min)
Calibration Curve
Range (ng/mL)
Correlation
Coefficient
Sucralose + 414.00 > 199.10 6.36 0.5 to 100 0.999
Dulcin + 181.20 > 108.10 6.70 0.05 to 10 0.999
Alitame + 332.20 > 129.00 6.92 0.5 to 100 0.999
Rebaudioside A + 984.50 > 325.10 8.21 0.5 to 100 0.999
Stevioside + 822.00 > 319.30 8.23 0.5 to 100 0.999
Acesulfame potassium 161.90 > 82.00 5.23 0.1 to 10 0.999
Saccharin 181.90 > 42.00 5.58 0.5 to 50 0.997
Cyclamate 178.00 > 80.00 6.08 1 to 100 0.999
Aspartame 293.40 > 261.10 6.53 5 to 100 0.999
Advantame 457.30 > 200.30 7.12 0.5 to 100 0.999
Glycyrrhizic acid 821.20 > 351.10 7.41 50 to 1000 0.999
Rebaudioside M 1289.60 > 802.90 7.66 50 to 1000 0.999
Neotame 377.30 > 200.00 7.90 1 to 100 0.999
Rebaudioside C 949.50 > 787.20 8.46 1 to 100 0.999
Dulcoside A 787.50 > 625.20 8.50 10 to 1000 0.999
Isosteviol 317.30 > 317.30 10.46 0.5 to 1000 0.999
 

Analysis of Dicyandiamide and Melamine in Milk Powders (LC-MS/MS)

Melamine was found to be used as a protein-rich adulterant in pet food in 2007, and then in infant formula in 2008 in China. The outbreak of the melamine scandal that killed many dogs and cats as well as led to the deaths of six infants and illness of many others caused panic and great concerns worldwide. Recently, low levels of dicyandiamide (DCD) residues were found in milk products from New Zealand. Instead of being added directly as an adulterant, the trace DCD, which is used for promote the growth of cow pastures, found in milk products was explained to be relating to the grass "contaminated by DCD".

Dicyandiamide and melamine in milk powders

Dicyandiamide and melamine in milk powders

Analysis of Sudan Dyes in Curry Powder (LC)

Sudan dyes are oil-soluble synthetic dyes used in industrial products. Their use is not authorized in food products in some countries. This is an example of LC analysis of Sudan dyes in curry powder.

Analysis of Preservatives in Food (UV)

This example shows the analysis of preservatives in food products. It is confirmed that a variety of components can be analyzed with high accuracy via easy pretreatment and measurements.

Sodium nitrite in meat
 

Sodium nitrite in meat

 

Sorbic acid in a processed white fish product
 

Sorbic acid in a processed white fish product

 

Simultaneous Analysis of Flavor Compounds (GC-MS)

Single Quadrupole Mass Spectrometer GCMS-QP2020 NX

Single Quadrupole Mass Spectrometer
GCMS-QP2020 NX

GC-MS is commonly used for analysis of flavor compounds. Shown is an example of a simultaneous analysis of 19 flavor compounds in lavender oil using a Fast GC/MS Method. All compounds were separated within six minutes.

19 flavor compounds in lavender oil

19 flavor compounds in lavender oil

 

■Peaks

1 alpha-Pinene
2 Camphene
3 beta-Pinene
4 Myrcene
5 Cymene
6 Limonene
7 Eucalyptol
8 gamma-Terpinene
9 Linalool
10 Camphor
11 Isoborneol
12 alpha-Terpineol
13 Linalyl acetate
14 Bornyl acetate
15 Neryl acetate
16 (Z)-beta-Farnesene
17 Germacrene D
18 beta-Bisabolene
19 Caryophyllene oxide

Related Information (Including Old Applications)

For Research Use Only. Not for use in diagnostic procedures.

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