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Occurrence of chloropropanols in soy sauce and other foods in China between 2002 and 2004. 2007

Wu Sheng Fu, and Yunfeng Zhao, and Gong Zhang, and Lei Zhang, and Jing Guang Li, and Chang Dong Tang, and Hong Miao, and Jin Bo Ma, and Qi Zhang, and Yong Ning Wu
Department of Chemical Contaminants Monitoring, Chinese Center for Disease Control and Prevention, National Institute of Nutrition and Food Safety, Beijing 100070, China.

A survey of chloropropanols in soy sauce and some selected foods in China is reported. Thirty-seven traditionally brewed soy sauce samples contained 3-MCPD below the EC maximum limit (ML) of 0.02 mg kg(-1). All soy sauce samples (629) from retailers contained levels of 3-MCPD ranging between <0.005 (LOQ) and 189 mg kg(-1), and only 12.2% had levels in excess of the Chinese ML of 1.0 mg kg(-1) for acid hydrolyzed vegetable protein (acid HVP). This indicates that the necessary processing changes have been made to decrease levels of chloropropanols in soy sauce. 2-Monochloropropane-1,3-diol (2-MCPD), 1,3-dichloro-2-propanol (1,3-DCP) and 2,3-dichloro-1-propanol (2,3-DCP) were detected in 48.1 19.1 and 3.78% of the soy sauce samples, respectively; the highest levels being 20.3, 8.26 and 0.50 mg kg(-1), respectively. A good linear correlation was found between the amount of 3-MCPD and 2-MCPD, with the level of 3-MCPD being generally higher than that of other chloropropanols for the same soy sauce. Acid HVP contained 3-MCPD at a level of 0.010-117.7 mg kg(-1) (on a liquid basis) and 80% of samples contained levels exceeding 1.0 mg kg(-1). In some other foods investigated, relatively high levels of 3-MCPD were found in soy sauce powder, oyster sauce, beef products, instant noodle spices and health foods, ranging from 0.029 to 13.64 mg kg(-1). It is concluded that abnormal levels of 3-MCPD in soy sauce or other foods produced in China may result from acid hydrolysis or the addition of the contaminated acid HVP.

UI MeSH Term Description Entries
D008452 Maximum Allowable Concentration The maximum exposure to a biologically active physical or chemical agent that is allowed during an 8-hour period (a workday) in a population of workers, or during a 24-hour period in the general population, which does not appear to cause appreciable harm, whether immediate or delayed for any period, in the target population. (From Lewis Dictionary of Toxicology, 1st ed) Maximum Permissible Exposure Level,MPEL,Maximum Permissible Exposure Concentration,Allowable Concentration, Maximum,Allowable Concentrations, Maximum,Concentration, Maximum Allowable,Concentrations, Maximum Allowable,MPELs,Maximum Allowable Concentrations
D002273 Carcinogens Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included. Carcinogen,Oncogen,Oncogens,Tumor Initiator,Tumor Initiators,Tumor Promoter,Tumor Promoters,Initiator, Tumor,Initiators, Tumor,Promoter, Tumor,Promoters, Tumor
D002629 Chemosterilants Compounds that cause reproductive sterility in organisms. They are sometimes used to control pest populations by sterilizing males within the population.
D002681 China A country spanning from central Asia to the Pacific Ocean. Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China
D003212 Condiments Aromatic substances added to food before or after cooking to enhance its flavor. These are usually of vegetable origin. Salad Dressing,Condiment,Dressing, Salad,Dressings, Salad,Salad Dressings
D005506 Food Contamination The presence in food of harmful, unpalatable, or otherwise objectionable foreign substances, e.g. chemicals, microorganisms or diluents, before, during, or after processing or storage. Food Adulteration,Adulteration, Food,Adulterations, Food,Contamination, Food,Contaminations, Food,Food Adulterations,Food Contaminations
D000517 alpha-Chlorohydrin A chlorinated PROPANEDIOL with antifertility activity in males used as a chemosterilant in rodents. alpha-Chlorhydrin,3-Chloro-1,2-propanediol,3-Chloropropanediol,3-MCPD,3-Monochloropropane-1,2-diol,Glycerol alpha-Monochlorohydrin,U-5897,3 Chloro 1,2 propanediol,3 Chloropropanediol,3 Monochloropropane 1,2 diol,Glycerol alpha Monochlorohydrin,U 5897,U5897,alpha Chlorhydrin,alpha Chlorohydrin,alpha-Monochlorohydrin, Glycerol
D013025 Glycine max An annual legume. The SEEDS of this plant are edible and used to produce a variety of SOY FOODS. Soy Beans,Soybeans,Bean, Soy,Beans, Soy,Soy Bean,Soybean
D045730 Soy Foods Foods made from GLYCINE MAX. Soy foods are high in DIETARY PROTEINS and PHYTOESTROGENS such as ISOFLAVONES. Soy Sauce,Texturized Soy Protein,Tofu,Bean Curd, Soy,Miso,Natto,Soy Cheese,Tempeh,Texturized Vegetable Protein,Bean Curds, Soy,Cheese, Soy,Cheeses, Soy,Curd, Soy Bean,Curds, Soy Bean,Food, Soy,Foods, Soy,Protein, Texturized Soy,Protein, Texturized Vegetable,Proteins, Texturized Soy,Sauce, Soy,Soy Bean Curd,Soy Bean Curds,Soy Cheeses,Soy Food,Soy Protein, Texturized,Soy Proteins, Texturized,Texturized Soy Proteins,Vegetable Protein, Texturized,Vegetable Proteins, Texturized

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