GB 1886.19-2015National Food Safety Standard -- Food Additives -- Red yeast rice (English PDF)

Foreword

This alternative standard GB 4926-2008 "food additive red yeast rice (powder)." this standard compared with GB 4926-2008, the main changes are as follows.

--- Standard name was changed to "national food safety standards for food additives, red yeast rice." National Food Safety Standard Red yeast rice food additives

1 Scope

This standard applies to rice as raw material, the genus Monascus (Monascus) Monascus fermentation obtained, red particle (or particles Tablets into powder) food additive red yeast rice.

2 Technical Requirements

3 Table, microbiological limits

Project Limited test methods Coliform/(MPN/g) <= 3.0 GB 4789.3 Salmonella not detected GB 4789.4 Shigella not detected GB 4789.5 Staphylococcus aureus not detected GB 4789.10 Appendix A Testing method A.1 General Provisions this standard reagents and water, did not indicate when the other requirements, refer to analytical reagent and third grade water GB/T 6682 regulations.

Standard solutions used in the tests, impurity standard solution, preparations and products, did not indicate when the other requirements, according to GB/T 601, GB/T 602 and the provisions of GB/T 603 formulation. Solution was used in the tests did not indicate what is formulated with solvent, it refers to an aqueous solution.

A.2 Determination of Color Value A.2.1 Reagents and materials Ethanol. 70%.

A.2.2 Instruments and Equipment A.2.2.1 grinder.

A.2.2.2 Spectrophotometer.

A.2.2.3 water bath. Temperature accuracy ± 0.5 °C.

A.2.3 Analysis step

The sample was crushed with a grinder, which samples can be over 250µm ~ 380µm (40 mesh to 60 mesh) screen.

Accurately weighed sample to crush mixed 0.2g (accurate to 0.001g), was dissolved in 70% ethanol solution and transferred to 100mL Volumetric flask to the mark, placed in 60 °C ± 0.5 °C water bath, soak accurate 1h, then cool to room temperature and added 70% ethanol solution to the mark, and mix. With filter paper and the filtrate was collected in a tube with a stopper colorimetric, spare.

Imbibe above filtrate 2.0mL ~ 5.0mL to 50mL volumetric flask (so that the final dilution range of 0.3 to 0.6 absorbance falls Inside), with 70% ethanol solution was diluted to volume to 50mL, shake, with 10mm cuvette, 70% ethanol solution as a reference, at a wavelength 505nm, the absorbance was measured which the sample immersed dilution A.

A.2.4 Calculation Results Color value X1 (µ/g), according to formula (A.1) Calculated.

X1 = A ×

Where.

A --- soaking absorbance diluent;

100 --- conversion factor;

m1 --- weighed sample mass, in grams (g);

50 --- conversion factor;

V --- draw volumes of ethanol infusions, in milliliters (mL).

The results parallel arithmetic mean of the measurement results shall prevail. Twice under the same condition of independent determination results obtained absolute difference not more than 2%.

A.3 fineness 150µm (100 mesh) by measuring the rate of A.3.1 Instruments and Equipment A.3.1.1 standard test sieve 75µm (200 mesh).

A.3.1.2 Analytical Balance. Accuracy ± 0.2mg.

A.3.2 Analysis step

Weigh red yeast rice 100g (accurate to 0.2g).

The standard screen is mounted on a predetermined screen chassis, and then said good sample is transferred fully into the sieve, covered, shaking screening 5min (often knock Bang play screen), standing 2min, remove the cover, carefully sieve were all transferred to a beaker of known mass, weighing scales, calculations.

A.3.3 Calculation Results Sample Fineness 150µm (100 mesh) pass rate w, according to equation (A.2) Calculated.

100-m2

100 × 100%

Where.

Quality 100 --- sample in grams (g);

Mass m2 --- sieve material in grams (g).

The results parallel arithmetic mean of the measurement results shall prevail (reserved integer). Two independent measurement results obtained under repeatability conditions If the difference is not more than 1%.

5102-

91 6881