Objective Consuming phthalates may be due to the presence of food contact materials, such as plastic containers. In this study, we investigated the association between plastic container use and phthalate exposure in 2...Objective Consuming phthalates may be due to the presence of food contact materials, such as plastic containers. In this study, we investigated the association between plastic container use and phthalate exposure in 2,140 Shanghai adults. Methods Participants completed a questionnaire on the frequency of using plastic containers in different scenarios in the previous year （e.g., daily, weekly） and on the consumption of plastic-packaged foods in the previous three days （yes or no）. Urinary phthalate metabolites were used to assess the association between phthalate exposure and the use of plastic containers. Results The metabolites of di-（2-ethylhexyl） phthalate （DEHP） were the most frequently detected in urine. The results revealed that phthalate exposure was associated with consumption of plastic-packaged breakfast or processed food items in the previous three days. The consumption of these two food items had strong synergistic effects on increasing urinary concentrations of most phthalate metabolites. Conclusion Our results of plastic-packaged breakfast and processed food may be explained by the use of flexible plastic containers, indicating the importance of risk assessment for the application of flexible plastic containers.展开更多
This study aims to present a set of operation and management systems for containers used in the transport of fresh agricultural produces.The proposed system utilizes Radio Frequency Identification(RFID)and technologie...This study aims to present a set of operation and management systems for containers used in the transport of fresh agricultural produces.The proposed system utilizes Radio Frequency Identification(RFID)and technologies related to information engineering.An operation and information management system for the marketing of fruit and vegetables using RFID-embedded plastic containers is well planned and developed.In order to promote the use of plastic containers,the study designs an energy-saving and environmentally-friendly container that allows for standardized operation.A related standardized operation flow is tested to fully satisfy the wholesale market demands.The entire flow and operation is also tested by all related sectors of the system.With the application of the RFID tag,real time information generated at the production center can be sent to the wholesale market through a wireless network,thus reducing the labor needed for data input while also reducing human error at the market.This may improve tallying efficiency and reduce costs.展开更多
1 Scope This standard specifies the definition, classification, technical requirements, test methods, inspection rules, packing, marking, transportation and quality certificate of corundum block containing plastic ph...1 Scope This standard specifies the definition, classification, technical requirements, test methods, inspection rules, packing, marking, transportation and quality certificate of corundum block containing plastic phase.展开更多
基金supported by the National Key Research and Development Program of China(No.2016YFD0400602)
文摘Objective Consuming phthalates may be due to the presence of food contact materials, such as plastic containers. In this study, we investigated the association between plastic container use and phthalate exposure in 2,140 Shanghai adults. Methods Participants completed a questionnaire on the frequency of using plastic containers in different scenarios in the previous year （e.g., daily, weekly） and on the consumption of plastic-packaged foods in the previous three days （yes or no）. Urinary phthalate metabolites were used to assess the association between phthalate exposure and the use of plastic containers. Results The metabolites of di-（2-ethylhexyl） phthalate （DEHP） were the most frequently detected in urine. The results revealed that phthalate exposure was associated with consumption of plastic-packaged breakfast or processed food items in the previous three days. The consumption of these two food items had strong synergistic effects on increasing urinary concentrations of most phthalate metabolites. Conclusion Our results of plastic-packaged breakfast and processed food may be explained by the use of flexible plastic containers, indicating the importance of risk assessment for the application of flexible plastic containers.
基金The authors would like to thank the Agriculture and Food Agency,Executive Yuan for the financial support of this work through the project 98AS-6.1.3-FD-Z1.
文摘This study aims to present a set of operation and management systems for containers used in the transport of fresh agricultural produces.The proposed system utilizes Radio Frequency Identification(RFID)and technologies related to information engineering.An operation and information management system for the marketing of fruit and vegetables using RFID-embedded plastic containers is well planned and developed.In order to promote the use of plastic containers,the study designs an energy-saving and environmentally-friendly container that allows for standardized operation.A related standardized operation flow is tested to fully satisfy the wholesale market demands.The entire flow and operation is also tested by all related sectors of the system.With the application of the RFID tag,real time information generated at the production center can be sent to the wholesale market through a wireless network,thus reducing the labor needed for data input while also reducing human error at the market.This may improve tallying efficiency and reduce costs.
文摘1 Scope This standard specifies the definition, classification, technical requirements, test methods, inspection rules, packing, marking, transportation and quality certificate of corundum block containing plastic phase.
