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Saffron Standard ISO-3621-1

Saffron standards

Saffron quality is controlled based on the international standards ISO-3621-1 and national Iranian Standards 259-1 and 259-2 that cover all characteristics and grading of saffron. Tests including color additives, moisture percentage, ash measurement, measurement of acid-insoluble ash, and coloring power are performed on saffron. Spectrophotometry at wavelengths of 257, 330, and 440 nanometers measures the picrocrocin (the agent imparting the bitter flavor to saffron) , safranal (the agent imparting fragrance to saffron), and Crocin (the agent imparting color to saffron) contents. Microbial tests are also carried out to control contamination and ensure safety of the product during production, processing, packaging, and later processes. Results of all tests are studied by the quality control unit, and these results play an effective role in the selection of saffron suppliers and in upgrading the quality of the final product and, finally, in securing customer satisfaction

Document Title Doc. No Doc. Revision
Saffron (croocus sativus linnacns)
Part 1 :Specification

ISO\PDTS
3632-1,2

2011

 

Test method

Specifications

Categories

Characteristics

,ISO 3632-2:2010

 Clause 7

 

 

 

12

10

 

 

 

12

10

 

 

 

 

12

10

 

Moisture and volatile matter content (mass fraction), % max.

 

Saffron in filaments and cut filaments

Forms

 

Saffron in powder form

ISO 928 and ISO 3632-2:2010, Clause 12 8 8 8

Total ash (mass), on dry matter,

 % max.

ISO 930 and ISO 3632-2:2010, Clause 13 1.0 1.0 1.0

Acid-insoluble ash (mass fraction),

 %, on dry matter, max.

ISO 930 and ISO 3632-2:2010, Clause 13 65 65 65

Soluble extract in cold water

(mass fraction), on dry matter، % max.

ISO 930 and ISO 3632-2:2010, Clause 13 40 55 70

Flavour strength (expressed as picrocrocin )

 

   257 nm, on dry matter, min.

 

(at this wavelength it has a maximum

absorbance of picrocrocin)

ISO 3632-2:2010, Clause 14

20

50

20

50

20

50

Aroma strength (expressed as safranal)

 330 nm, on dry matter,

Min

Max

(at this wavelength it has a maximum

absorbance of safranal)

ISO 3632-2:2010, Clause 14 120 170 200

Colouring strength (expressed as crocin)

 

   440 nm, on dry matter, min.

 

(at this wavelength it has a maximum

absorbance of crocin)

  Absent Absent Absent Artificial colorants
NOTE Additional analysis can be carried out, where necessary, if there is enough of the sample left.

 

 

 

 

 

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