In order to explore the relationship between the color of tableware and appetite,random samples were selected from the network survey.The results show that the vast majority of people will pay attention to the color o...In order to explore the relationship between the color of tableware and appetite,random samples were selected from the network survey.The results show that the vast majority of people will pay attention to the color of tableware,and think that the color of tableware will have an impact on appetite:Most of the respondents prefer the warm color of tableware.Finally,according to the survey results,some suggestions and ideas are put forward to the catering operators:Catering operators need to improve their aesthetic artistry;pay attention to the collocation of different colors;according to the tableware function deployment tableware color;and so on.展开更多
Hexafluoroisopropanol(HFIP)-induced sodium dodecyl sulfate/dodecyltrimethylammonium bromide(SDS/DTAB) catanionic surfactant coacervate extraction method coupled with high performance liquid chromatography(HPLC) was us...Hexafluoroisopropanol(HFIP)-induced sodium dodecyl sulfate/dodecyltrimethylammonium bromide(SDS/DTAB) catanionic surfactant coacervate extraction method coupled with high performance liquid chromatography(HPLC) was used to detect the migration of phthalates from disposable tablewares to drinking water. The concentration factors are larger than 82 and extraction recoveries over 53% for water samples spiked with 100 or 200 ng/m L phthalates. Limit of detection is in the range of 1.0–2.6 ng/m L.Good linearity with correlation coefficients larger than 0.9985 is obtained in the concentration of20–1500 or 40–3000 ng/m L. Relative recoveries are from 82.4% to 123.6% for water samples spiked with30/60, 250/500, and 1500/3000 ng/m L phthalates, respectively. Relative standard deviations(RSDs) are0.4%–7.4% for intraday precision(n = 5) and 0.6%–7.8% for interday precision(n = 3). Four of studied phthalates are found in the drinking water samples prepared from four kinds of tablewares.展开更多
In this work,carbonized mussel shell powder(CMSP)was modified by alkyl polyglucosides(APG)and rhamnolipid(RL)to render porous biomass a lipophilic surface,which was innovatively utilized as an environmentally friendly...In this work,carbonized mussel shell powder(CMSP)was modified by alkyl polyglucosides(APG)and rhamnolipid(RL)to render porous biomass a lipophilic surface,which was innovatively utilized as an environmentally friendly tableware cleaning material.The modified method was two-step hydrotherm-assisted synthesis.A contact angle meter was used to determine the surface hydrophobic property of modified samples(MTAR).The pore and the surface structure of CMSP and MTAR were characterized by BET,SEM,XRD,FTIR and XPS.The effect of removing oil was tested by gravimetric method.The results showed that the surface of MTAR was more porous and fluffier than CMSP,and the specific surface area is increased by 16.76 times.The results showed that when calcining CMSP at 1000℃,the oil removal rate of the synthesized MTAR is the best,and the decontamination rate can reach 87.05%.This research aims to develop a green and environmentally-friendly tableware cleaning material,solve environmental problems,and make full use of waste,which is very conducive to environmental protection.展开更多
The potential migration of chemicals from disposable biodegradable tableware into food raises safety concerns regarding human health.This study utilized an ultra-high-performance liquid chromatography/quadrupole timeo...The potential migration of chemicals from disposable biodegradable tableware into food raises safety concerns regarding human health.This study utilized an ultra-high-performance liquid chromatography/quadrupole timeofflight mass spectrometry(UPLC-QTOF/MS)for the non-targeted identification of chemical migrants in 41 commercially available disposable biodegradable tableware products in the Chinese market.A total of 303 migrant compounds were identified,comprising primarily 123 oligomers,45 esters,and 31 amines.In addition,the predominant additives and related substances included 58 slip agents,27 antistatic agents,and 22 antioxidants.To comprehensively evaluate potential hazards for chemical migrants,we enhanced an existing toxicity risk matrix by incorporating endocrine disruption-related toxicity endpoints.The developed risk classification strategy was employed to categorize the 303 migrants into distinct risk levels.Notably,47 substances were classified as posing the highest risk level(RISK I),which primarily comprised slip agents(e.g.palmitamide),antioxidant degradation products(e.g.bis(2,4-di-tert-butylphenyl)phosphonate,7,9-di-tert-butyl-1-oxaspiro[4.5]deca-6,9-diene-2,8-dione),and plasticizers(e.g.triisobutyl phosphate),In conclusion,this study presents a comprehensive methodology and offers a scientific basis for the safety assessment of chemical migrants in disposable biodegradable tableware.展开更多
基金This work is supported by National Natural Science Foundation of China(41571116)National Spark Plan Project(2013GA780092)Science and Technology Planning Project of Guangdong Province(2014A070713037).
文摘In order to explore the relationship between the color of tableware and appetite,random samples were selected from the network survey.The results show that the vast majority of people will pay attention to the color of tableware,and think that the color of tableware will have an impact on appetite:Most of the respondents prefer the warm color of tableware.Finally,according to the survey results,some suggestions and ideas are put forward to the catering operators:Catering operators need to improve their aesthetic artistry;pay attention to the collocation of different colors;according to the tableware function deployment tableware color;and so on.
基金the National Natural Science Foundation of China(Grant no.81373045)the Provincial Natural Science Foundation of Hubei of China(Grant no.2015CFA139)
文摘Hexafluoroisopropanol(HFIP)-induced sodium dodecyl sulfate/dodecyltrimethylammonium bromide(SDS/DTAB) catanionic surfactant coacervate extraction method coupled with high performance liquid chromatography(HPLC) was used to detect the migration of phthalates from disposable tablewares to drinking water. The concentration factors are larger than 82 and extraction recoveries over 53% for water samples spiked with 100 or 200 ng/m L phthalates. Limit of detection is in the range of 1.0–2.6 ng/m L.Good linearity with correlation coefficients larger than 0.9985 is obtained in the concentration of20–1500 or 40–3000 ng/m L. Relative recoveries are from 82.4% to 123.6% for water samples spiked with30/60, 250/500, and 1500/3000 ng/m L phthalates, respectively. Relative standard deviations(RSDs) are0.4%–7.4% for intraday precision(n = 5) and 0.6%–7.8% for interday precision(n = 3). Four of studied phthalates are found in the drinking water samples prepared from four kinds of tablewares.
基金supported by scientific research fund of Zhejiang provincial education department(Y201942627)Zhejiang Provincial Universities and Research Institutes(No.2019J00025)Demonstration Project of Marine Economic Innovation and Development of Zhoushan City of China.
文摘In this work,carbonized mussel shell powder(CMSP)was modified by alkyl polyglucosides(APG)and rhamnolipid(RL)to render porous biomass a lipophilic surface,which was innovatively utilized as an environmentally friendly tableware cleaning material.The modified method was two-step hydrotherm-assisted synthesis.A contact angle meter was used to determine the surface hydrophobic property of modified samples(MTAR).The pore and the surface structure of CMSP and MTAR were characterized by BET,SEM,XRD,FTIR and XPS.The effect of removing oil was tested by gravimetric method.The results showed that the surface of MTAR was more porous and fluffier than CMSP,and the specific surface area is increased by 16.76 times.The results showed that when calcining CMSP at 1000℃,the oil removal rate of the synthesized MTAR is the best,and the decontamination rate can reach 87.05%.This research aims to develop a green and environmentally-friendly tableware cleaning material,solve environmental problems,and make full use of waste,which is very conducive to environmental protection.
基金the National Natural Science Foundation of China(32472450)。
文摘The potential migration of chemicals from disposable biodegradable tableware into food raises safety concerns regarding human health.This study utilized an ultra-high-performance liquid chromatography/quadrupole timeofflight mass spectrometry(UPLC-QTOF/MS)for the non-targeted identification of chemical migrants in 41 commercially available disposable biodegradable tableware products in the Chinese market.A total of 303 migrant compounds were identified,comprising primarily 123 oligomers,45 esters,and 31 amines.In addition,the predominant additives and related substances included 58 slip agents,27 antistatic agents,and 22 antioxidants.To comprehensively evaluate potential hazards for chemical migrants,we enhanced an existing toxicity risk matrix by incorporating endocrine disruption-related toxicity endpoints.The developed risk classification strategy was employed to categorize the 303 migrants into distinct risk levels.Notably,47 substances were classified as posing the highest risk level(RISK I),which primarily comprised slip agents(e.g.palmitamide),antioxidant degradation products(e.g.bis(2,4-di-tert-butylphenyl)phosphonate,7,9-di-tert-butyl-1-oxaspiro[4.5]deca-6,9-diene-2,8-dione),and plasticizers(e.g.triisobutyl phosphate),In conclusion,this study presents a comprehensive methodology and offers a scientific basis for the safety assessment of chemical migrants in disposable biodegradable tableware.
