The Experts below are selected from a list of 72156 Experts worldwide ranked by ideXlab platform
Qiquan Wang - One of the best experts on this subject based on the ideXlab platform.
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Plasticizer contamination in edible vegetable oil in a U.S. Retail Market.
Journal of Agricultural and Food Chemistry, 2013Co-Authors: Xiaolong Bi, Shoujun Yuan, Qiquan WangAbstract:With the wide application of plastics, the contamination of plasticizers migrating from plastic materials in the environment is becoming ubiquitous. The presence of phthalates, the major group of plasticizers, in edible items has gained increasingly more concern due to their endocrine disrupting property. In this study, 15 plasticizers in 21 edible vegetable oils purchased from a U.S. Retail Market were analyzed using gas chromatograph–mass spectrometry. Di(2-ethylhexyl) phthalate (DEHP) and diisobutyl phthalate (DiBP) were detected in all oil samples. Benzylbutyl phthalate (BzBP), dibutyl phthalate (DBP), and diethyl phthalate (DEP) were detected at a rate of 95.2, 90.5, and 90.5%, respectively. The detection rates for all other plasticizers ranged from 0 to 57.1%. The content of total plasticizers in oil samples was determined to be 210–7558 μg/kg, which was comparable to the content range in oil Marketed in Italy. Although no significant difference (p = 0.05) in the total content of plasticizer was obs...
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Plasticizer contamination in edible vegetable oil in a U.S. Retail Market
Journal of Agricultural and Food Chemistry, 2013Co-Authors: Xiaolong Bi, Xiaojun Pan, Shoujun Yuan, Qiquan WangAbstract:With the wide application of plastics, the contamination of plasticizers migrating from plastic materials in the environment is becoming ubiquitous. The presence of phthalates, the major group of plasticizers, in edible items has gained increasingly more concern due to their endocrine disrupting property. In this study, 15 plasticizers in 21 edible vegetable oils purchased from a U.S. Retail Market were analyzed using gas chromatograph-mass spectrometry. Di(2-ethylhexyl) phthalate (DEHP) and diisobutyl phthalate (DiBP) were detected in all oil samples. Benzylbutyl phthalate (BzBP), dibutyl phthalate (DBP), and diethyl phthalate (DEP) were detected at a rate of 95.2, 90.5, and 90.5%, respectively. The detection rates for all other plasticizers ranged from 0 to 57.1%. The content of total plasticizers in oil samples was determined to be 210-7558 μg/kg, which was comparable to the content range in oil Marketed in Italy. Although no significant difference (p = 0.05) in the total content of plasticizer was observed among oil species (soybean, canola, corn, and olive), the wider range and higher average of total content of plasticizers in olive oil than other oil species indicated the inconsistence of plasticizer contamination in olive oil and a possible priority for quality monitoring. No significant difference (p = 0.05) in the total content of plasticizers was found among glass-bottle (n = 4), plastic-bottle (n = 14), and metal-can (n = 3) packaging, implying that oil packaging is not the major cause of plasticizer contamination. The daily intake amount of plasticizers contained in edible oil on this U.S. Retail Market constituted only a minimum percentage of reference dose established by US EPA, thus no obvious toxicological effect might be caused. However, the fact that DEHP content in two olive oils exceeded relevant special migration limits (SMLs) of Europe and China might need attention.
Xiaolong Bi - One of the best experts on this subject based on the ideXlab platform.
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Plasticizer contamination in edible vegetable oil in a U.S. Retail Market.
Journal of Agricultural and Food Chemistry, 2013Co-Authors: Xiaolong Bi, Shoujun Yuan, Qiquan WangAbstract:With the wide application of plastics, the contamination of plasticizers migrating from plastic materials in the environment is becoming ubiquitous. The presence of phthalates, the major group of plasticizers, in edible items has gained increasingly more concern due to their endocrine disrupting property. In this study, 15 plasticizers in 21 edible vegetable oils purchased from a U.S. Retail Market were analyzed using gas chromatograph–mass spectrometry. Di(2-ethylhexyl) phthalate (DEHP) and diisobutyl phthalate (DiBP) were detected in all oil samples. Benzylbutyl phthalate (BzBP), dibutyl phthalate (DBP), and diethyl phthalate (DEP) were detected at a rate of 95.2, 90.5, and 90.5%, respectively. The detection rates for all other plasticizers ranged from 0 to 57.1%. The content of total plasticizers in oil samples was determined to be 210–7558 μg/kg, which was comparable to the content range in oil Marketed in Italy. Although no significant difference (p = 0.05) in the total content of plasticizer was obs...
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Plasticizer contamination in edible vegetable oil in a U.S. Retail Market
Journal of Agricultural and Food Chemistry, 2013Co-Authors: Xiaolong Bi, Xiaojun Pan, Shoujun Yuan, Qiquan WangAbstract:With the wide application of plastics, the contamination of plasticizers migrating from plastic materials in the environment is becoming ubiquitous. The presence of phthalates, the major group of plasticizers, in edible items has gained increasingly more concern due to their endocrine disrupting property. In this study, 15 plasticizers in 21 edible vegetable oils purchased from a U.S. Retail Market were analyzed using gas chromatograph-mass spectrometry. Di(2-ethylhexyl) phthalate (DEHP) and diisobutyl phthalate (DiBP) were detected in all oil samples. Benzylbutyl phthalate (BzBP), dibutyl phthalate (DBP), and diethyl phthalate (DEP) were detected at a rate of 95.2, 90.5, and 90.5%, respectively. The detection rates for all other plasticizers ranged from 0 to 57.1%. The content of total plasticizers in oil samples was determined to be 210-7558 μg/kg, which was comparable to the content range in oil Marketed in Italy. Although no significant difference (p = 0.05) in the total content of plasticizer was observed among oil species (soybean, canola, corn, and olive), the wider range and higher average of total content of plasticizers in olive oil than other oil species indicated the inconsistence of plasticizer contamination in olive oil and a possible priority for quality monitoring. No significant difference (p = 0.05) in the total content of plasticizers was found among glass-bottle (n = 4), plastic-bottle (n = 14), and metal-can (n = 3) packaging, implying that oil packaging is not the major cause of plasticizer contamination. The daily intake amount of plasticizers contained in edible oil on this U.S. Retail Market constituted only a minimum percentage of reference dose established by US EPA, thus no obvious toxicological effect might be caused. However, the fact that DEHP content in two olive oils exceeded relevant special migration limits (SMLs) of Europe and China might need attention.
Shoujun Yuan - One of the best experts on this subject based on the ideXlab platform.
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Plasticizer contamination in edible vegetable oil in a U.S. Retail Market.
Journal of Agricultural and Food Chemistry, 2013Co-Authors: Xiaolong Bi, Shoujun Yuan, Qiquan WangAbstract:With the wide application of plastics, the contamination of plasticizers migrating from plastic materials in the environment is becoming ubiquitous. The presence of phthalates, the major group of plasticizers, in edible items has gained increasingly more concern due to their endocrine disrupting property. In this study, 15 plasticizers in 21 edible vegetable oils purchased from a U.S. Retail Market were analyzed using gas chromatograph–mass spectrometry. Di(2-ethylhexyl) phthalate (DEHP) and diisobutyl phthalate (DiBP) were detected in all oil samples. Benzylbutyl phthalate (BzBP), dibutyl phthalate (DBP), and diethyl phthalate (DEP) were detected at a rate of 95.2, 90.5, and 90.5%, respectively. The detection rates for all other plasticizers ranged from 0 to 57.1%. The content of total plasticizers in oil samples was determined to be 210–7558 μg/kg, which was comparable to the content range in oil Marketed in Italy. Although no significant difference (p = 0.05) in the total content of plasticizer was obs...
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Plasticizer contamination in edible vegetable oil in a U.S. Retail Market
Journal of Agricultural and Food Chemistry, 2013Co-Authors: Xiaolong Bi, Xiaojun Pan, Shoujun Yuan, Qiquan WangAbstract:With the wide application of plastics, the contamination of plasticizers migrating from plastic materials in the environment is becoming ubiquitous. The presence of phthalates, the major group of plasticizers, in edible items has gained increasingly more concern due to their endocrine disrupting property. In this study, 15 plasticizers in 21 edible vegetable oils purchased from a U.S. Retail Market were analyzed using gas chromatograph-mass spectrometry. Di(2-ethylhexyl) phthalate (DEHP) and diisobutyl phthalate (DiBP) were detected in all oil samples. Benzylbutyl phthalate (BzBP), dibutyl phthalate (DBP), and diethyl phthalate (DEP) were detected at a rate of 95.2, 90.5, and 90.5%, respectively. The detection rates for all other plasticizers ranged from 0 to 57.1%. The content of total plasticizers in oil samples was determined to be 210-7558 μg/kg, which was comparable to the content range in oil Marketed in Italy. Although no significant difference (p = 0.05) in the total content of plasticizer was observed among oil species (soybean, canola, corn, and olive), the wider range and higher average of total content of plasticizers in olive oil than other oil species indicated the inconsistence of plasticizer contamination in olive oil and a possible priority for quality monitoring. No significant difference (p = 0.05) in the total content of plasticizers was found among glass-bottle (n = 4), plastic-bottle (n = 14), and metal-can (n = 3) packaging, implying that oil packaging is not the major cause of plasticizer contamination. The daily intake amount of plasticizers contained in edible oil on this U.S. Retail Market constituted only a minimum percentage of reference dose established by US EPA, thus no obvious toxicological effect might be caused. However, the fact that DEHP content in two olive oils exceeded relevant special migration limits (SMLs) of Europe and China might need attention.
Xiaojun Pan - One of the best experts on this subject based on the ideXlab platform.
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Plasticizer contamination in edible vegetable oil in a U.S. Retail Market
Journal of Agricultural and Food Chemistry, 2013Co-Authors: Xiaolong Bi, Xiaojun Pan, Shoujun Yuan, Qiquan WangAbstract:With the wide application of plastics, the contamination of plasticizers migrating from plastic materials in the environment is becoming ubiquitous. The presence of phthalates, the major group of plasticizers, in edible items has gained increasingly more concern due to their endocrine disrupting property. In this study, 15 plasticizers in 21 edible vegetable oils purchased from a U.S. Retail Market were analyzed using gas chromatograph-mass spectrometry. Di(2-ethylhexyl) phthalate (DEHP) and diisobutyl phthalate (DiBP) were detected in all oil samples. Benzylbutyl phthalate (BzBP), dibutyl phthalate (DBP), and diethyl phthalate (DEP) were detected at a rate of 95.2, 90.5, and 90.5%, respectively. The detection rates for all other plasticizers ranged from 0 to 57.1%. The content of total plasticizers in oil samples was determined to be 210-7558 μg/kg, which was comparable to the content range in oil Marketed in Italy. Although no significant difference (p = 0.05) in the total content of plasticizer was observed among oil species (soybean, canola, corn, and olive), the wider range and higher average of total content of plasticizers in olive oil than other oil species indicated the inconsistence of plasticizer contamination in olive oil and a possible priority for quality monitoring. No significant difference (p = 0.05) in the total content of plasticizers was found among glass-bottle (n = 4), plastic-bottle (n = 14), and metal-can (n = 3) packaging, implying that oil packaging is not the major cause of plasticizer contamination. The daily intake amount of plasticizers contained in edible oil on this U.S. Retail Market constituted only a minimum percentage of reference dose established by US EPA, thus no obvious toxicological effect might be caused. However, the fact that DEHP content in two olive oils exceeded relevant special migration limits (SMLs) of Europe and China might need attention.
Tomohiro Hayashida - One of the best experts on this subject based on the ideXlab platform.
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Electricity Retail Market model with flexible price settings and elastic price-based demand responses by consumers in distribution network
International Journal of Electrical Power and Energy Systems, 2016Co-Authors: Shinya Sekizaki, Ichiro Nishizaki, Tomohiro HayashidaAbstract:This paper presents a novel electricity Retail Market model in which elastic demands of consumers in a distribution network are traded at flexible selling prices offered by a Retailer. The main works of this paper are in three points: (1) Flexible and divided selling price settings over one day by the Retailer, (2) flexible and elastic responses corresponding to the selling prices (price-based Demand Response: DR) by different types of consumers, and (3) distribution network physical constraints to obtain the realistic cost of tariff for usage of the distribution network imposed to the Retailer are formulated. Unlike previous related works, the proposed model is a new one applicable to the behavior analysis of decision makers in the deregulated environment with such flexible transactions. In the transactions, the Retailer offers a selling price for a unit time period over one day and the consumers elastically respond to the prices. Assuming that the consumers respond to the prices rationally and control their demands flexibly, we model the transaction as a Stackelberg game formulated by a bi-level programming problem. The behavior of the Market players is examined in computational experiments using the spot price data in Japan Electricity Power eXchange (JEPX) and distribution network models, i.e. modified IEEE 13 bus test system model and IEEE 33-bus radial distribution test system model. We employ a genetic algorithm to find an approximated solution of the formulated non-convex bi-level programming problem. The computational results show some new findings about the deregulated Retail Market if flexible transactions between the Retailer and the consumers are realized.
