The high number of allergens that exist in the human food supply had led to increment of food allergies awareness by taking suitable prevention to protect sensitive consumers from unsolicited exposures to food allerge...The high number of allergens that exist in the human food supply had led to increment of food allergies awareness by taking suitable prevention to protect sensitive consumers from unsolicited exposures to food allergens.Several attempts were done to lessen or eradicate the food allergenicity via food processing which eventually resulted in mixed outcomes.The rationale behind the usage of food processing to reduce/remove the food allergenicity and the limitations encountered are further discussed.展开更多
Paralytic shellfish toxins(PSTs)are notorious neurotoxins that threaten public health and food safety worldwide.Although PST monitoring programs have recently been established throughout China,the profiles and variati...Paralytic shellfish toxins(PSTs)are notorious neurotoxins that threaten public health and food safety worldwide.Although PST monitoring programs have recently been established throughout China,the profiles and variation of PSTs in important commercial clams(e.g.,Mactra veneriformis,Ruditapes philippinarum,and Meretrix meretrix)along the Jiangsu Province coastline remain largely unexplored.In this study,a validated hydrophilic interaction liquid chromatography–tandem mass spectrometry(HILIC-MS/MS)method was used to examine PST profiles and levels in 540 clam samples from natural production areas along Jiangsu Province coastline during 2014–2016.Although the PST levels(≤6.38μg saxitotoxin equivalents(eq)/kg)were consistently below European Union regulatory limits(≤800μg saxitotoxin eq/kg)during this time period,saxitotoxin,decarbamoylsaxitotoxin,and gonyautoxins 1 and 4 were detected,and nearly 40%of the samples were saxitotoxin-positive.The PST levels also varied significantly by seasons,with peak values observed in May during 2014–2016.This is the first systematic report of PSTs in clams from Jiangsu Province,and additional research and protective measures are needed to ensure the safety of clams harvested in this area.展开更多
目的建立贝类中GI、GII诺如病毒快速检测与分群方法。方法对比分析6株主要流行的GI、GII诺如病毒及参考诺如病毒的基因序列,筛选保守区域引物,优化建立SYBR Green I荧光定量检测与熔解曲线快速分群方法,并对实际样品检测验证。结果引物P...目的建立贝类中GI、GII诺如病毒快速检测与分群方法。方法对比分析6株主要流行的GI、GII诺如病毒及参考诺如病毒的基因序列,筛选保守区域引物,优化建立SYBR Green I荧光定量检测与熔解曲线快速分群方法,并对实际样品检测验证。结果引物P289/290可同时检测GI、GII诺如病毒,SYBR Green I荧光定量检测方法在病毒浓度10^3~10^9 copies 之间呈现良好的线性关系( R^2=0.993, P <0.01),熔解曲线Tm值可区分GI和GII不同基因群的诺如病毒( F = 7 507.60 , P <0.05 )。120份贝类样品阳性检出率5.83%,其中阳性结果测序鉴定与快速分群方法结论一致。结论该方法成本低、检测快速、分群准确,具有良好重复性,适用于贝类中GI、GII诺如病毒的快速检测与分群。展开更多
文摘The high number of allergens that exist in the human food supply had led to increment of food allergies awareness by taking suitable prevention to protect sensitive consumers from unsolicited exposures to food allergens.Several attempts were done to lessen or eradicate the food allergenicity via food processing which eventually resulted in mixed outcomes.The rationale behind the usage of food processing to reduce/remove the food allergenicity and the limitations encountered are further discussed.
基金The Public Science and Technology Research Funds Projects of Ocean under contract Nos 201305007 and 201405017.
文摘Paralytic shellfish toxins(PSTs)are notorious neurotoxins that threaten public health and food safety worldwide.Although PST monitoring programs have recently been established throughout China,the profiles and variation of PSTs in important commercial clams(e.g.,Mactra veneriformis,Ruditapes philippinarum,and Meretrix meretrix)along the Jiangsu Province coastline remain largely unexplored.In this study,a validated hydrophilic interaction liquid chromatography–tandem mass spectrometry(HILIC-MS/MS)method was used to examine PST profiles and levels in 540 clam samples from natural production areas along Jiangsu Province coastline during 2014–2016.Although the PST levels(≤6.38μg saxitotoxin equivalents(eq)/kg)were consistently below European Union regulatory limits(≤800μg saxitotoxin eq/kg)during this time period,saxitotoxin,decarbamoylsaxitotoxin,and gonyautoxins 1 and 4 were detected,and nearly 40%of the samples were saxitotoxin-positive.The PST levels also varied significantly by seasons,with peak values observed in May during 2014–2016.This is the first systematic report of PSTs in clams from Jiangsu Province,and additional research and protective measures are needed to ensure the safety of clams harvested in this area.
文摘目的建立贝类中GI、GII诺如病毒快速检测与分群方法。方法对比分析6株主要流行的GI、GII诺如病毒及参考诺如病毒的基因序列,筛选保守区域引物,优化建立SYBR Green I荧光定量检测与熔解曲线快速分群方法,并对实际样品检测验证。结果引物P289/290可同时检测GI、GII诺如病毒,SYBR Green I荧光定量检测方法在病毒浓度10^3~10^9 copies 之间呈现良好的线性关系( R^2=0.993, P <0.01),熔解曲线Tm值可区分GI和GII不同基因群的诺如病毒( F = 7 507.60 , P <0.05 )。120份贝类样品阳性检出率5.83%,其中阳性结果测序鉴定与快速分群方法结论一致。结论该方法成本低、检测快速、分群准确,具有良好重复性,适用于贝类中GI、GII诺如病毒的快速检测与分群。