DERIVATION OF FOOD SAFETY STANDARDS Lecture Material - Food Safety Budi Widianarko - UNIKA SOEGIJAPRANATA.

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DERIVATION OF FOOD SAFETY STANDARDS Lecture Material - Food Safety Budi Widianarko - UNIKA SOEGIJAPRANATA

[ I ] ACTION LEVEL

ACTION LEVEL US Food And Drug Administration (US-FDA)‏ ACTION LEVELS are established based on the UNAVOIDABILITY of poisonous or deleterious substances and DO NOT represent permissible levels of contamination where it is avoidable ACTION LEVEL represents limit at or above which FDA will take legal action to remove product from market

The blending of food or feed containing a substance in excess of an action level with another food or feed is not permitted, and the final product resulting from blending is unlawful, regardless of the level of contaminant DILUTION DOES NOT WORK! Where no established action level exists, FDA may take legal action against the product at the minimal detectable level of the contaminant For a detailed list, see US-FDA, Industry Activities Staff Booklet, March 1998 (

HOW TO DERIVE ACTION LEVEL (1)‏ Sampling of subjective foodstuff across the geographical boundary SPATIAL DISTRIBUTION ENCOMPASING ALL LEVELS OF CONTAMINATION

HOW TO DERIVE ACTION LEVEL (2)‏ Determination of concentrations of toxicant or contaminant in the sample of foodstuff

HOW TO DERIVE ACTION LEVEL (3)‏ Set-up a distribution based on values (data) of contaminant concentration

HOW TO DERIVE ACTION LEVEL (4)‏ Identify the safety limit based on the X th percentile (the 90 th or 95 th percentile) of the distribution ACTION LEVEL The 95 th percentile

APPLICATION

B C A D C B A Zoning Kawasan Aquaculture A = layak untuk aquaculture B = layak untuk aquaculture terbatas C = tidak layak untuk aquaculture D = sangat tidak layak untuk aquaculture

B C A D C B A Zoning Kawasan Aquaculture A A B B

[ 2 ] MAXIMUM RESIDUE LIMIT (MRL)

MAXIMUM RESIDUE LIMIT (FAO, WHO, ASEAN, Badan POM etc)‏ UNIT mg toxic substance per kg food item CALCULATION Acceptable Daily Intake (ADI) of the toxic substance Consumption of selected food item

NOAEL/NEL/NOEC Toxicological Database: results of toxicity tests (human or other mammals)‏ Application of a safety factor – usually 100 (a “quick and dirty” method) Acceptable Daily Intake (ADI) or Reference Dose (RfD)‏ NOAEL = no observed adverse effect level NEL = no effect level NOEC = no observed effect level

EXAMPLE: Estimation of MRL of toxic substance “X” in rice ADI of toxic substance “X” = 10 mg/kg bw Daily Consumption of rice = 100 g (~ 20% of total food intake)‏ Reference body weight = 60 kg Total permissible daily intake of “X” = 60x10 mg = 600 mg Total permissible daily intake of “x” via rice consumption= 20% x 600 mg = 120 mg MRL = 120 mg/100 g = 1.2 g/kg rice

EXAMPLE: MRL (Cd) = 1.20 mg/kg rice Cd concentration in rice = 0.1 mg/kg Body weight of the person = 70 kg Rice comprises + 20% of the total food intake of the person What is maximum permissible daily consumption of rice?