Objective: Few studies have related nutritional factors with quality of life in healthy populations. Our aim was to analyze the relationship between commercial bakery, fast food or soft drinks consumption and mental a...Objective: Few studies have related nutritional factors with quality of life in healthy populations. Our aim was to analyze the relationship between commercial bakery, fast food or soft drinks consumption and mental and physical quality of life. Study Design: This analysis included 8335 participants from the 'Seguimiento Universidad de Navarra' (SUN) Project (a multipurpose, dynamic cohort). Methods: The consumption of commercial bakery, fast food and soft drinks was assessed through a validated food-frequency questionnaire at baseline. Quality of life was measured after 4 years of follow-up with the Short-Form 36 (SF-36) Health Survey. Generalized Linear Models were fit to assess the regression coefficients (b) and their 95% confidence intervals (95% CI) for the association between commercial bakery, fast food and soft drinks consumption and each domain and the two standardized measures of the SF-36. Results: As compared to the participants in the lowest quintile of consumption, those participants in the highest quintile of consumption of commercial bakery, fast food and soft drinks showed a score significantly lower (>2 points) for vitality (b = -2.14, 95% CI = -3.31 to -0.96), role emotional (b = -2.23, 95% CI = -4.33 to -0.13), and role physical (b = -2.31, 95% IC = -4.26 to -0.36) domains with statistically significant dose-response relationships (p for trend < 0.05). When the food groups were analysed separately, significant inverse associations were found only for commercial bakery and fast-food consumption. Conclusions: The results suggest that high consumption of commercial bakery, fast-food and soft drinks at baseline was associated with worse scores on self-perceived quality of life. This association was stronger for the mental domains of the SF-36.展开更多
Food allergy is a growing health issue worldwide and the demand for sensitive,robust and high-throughput analytical methods is rising.In recent years,mass spectrometry-based methods have been established for multiple ...Food allergy is a growing health issue worldwide and the demand for sensitive,robust and high-throughput analytical methods is rising.In recent years,mass spectrometry-based methods have been established for multiple food allergen detection.In the present study,a novel method was developed for the simultaneous detection of almond,cashew,peanut,and walnut allergens in bakery foods using liquid chromatography–mass spectrometry.Proteins unique to these four ingredients were extracted,followed by trypsin digestion,quadrupole time-of-flight(Q-TOF)mass spectrometry and bioinformatics analysis.The raw data were processed by de-novo sequencing module plus PEAKS DB(database search)module of the PEAKS software to screen peptides specific to each nut species.The thermal stability and uniqueness of these candidate peptides were further verified using triple quadrupole mass spectrometry(QQQ-MS)in multiple reaction monitoring(MRM)mode.Each nut species was represented by four peptides,all of which were validated for label-free quantification(LFQ).Calibration curves were constructed with good linearity and correlation coefficient(r 2)greater than 0.99.The limits of detection(LODs)were determined to range from 0.11 to 0.31 mg/kg,and were compared with the reference doses proposed by Voluntary Incidental Trace Allergen Labelling(VITAL).The recoveries of the developed method in incurred bakery food matrices ranged from 72.5%to 92.1%with relative standard deviations(RSD)of<5.2%.The detection of undeclared allergens in commercial bakery food samples confirmed the presence of these allergens.In conclusion,this method provides insight into the qualitative and quantitative detection of trace levels of nut allergens in bakery foods.展开更多
目的建立凝胶渗透色谱净化.气相色谱.质谱.内标法测定焙烤食品中富马酸二甲酯残留量的方法。方法试样经乙酸乙酯超声提取,经凝胶渗透色谱(gel permeation chromatography,GPC)净化,采用选择离子监测模式(selective ion monitoring,SIM)...目的建立凝胶渗透色谱净化.气相色谱.质谱.内标法测定焙烤食品中富马酸二甲酯残留量的方法。方法试样经乙酸乙酯超声提取,经凝胶渗透色谱(gel permeation chromatography,GPC)净化,采用选择离子监测模式(selective ion monitoring,SIM)进行气相色谱一质谱(gas chromatography-mass spectrometry,GC-MS)测定,采用丁二酸二甲酯作为内标,以内标法定量。结果富马酸二甲酯在0.02~5.00 mg/L内呈良好的线性关系,相关系数(r)大于0.9999;0.1、0.2和1.0 mg/kg水平的空白糕点加标回收实验的回收率为92.0%~107%,相对标准偏差(RSD)为3.2%~5.7%(n=6);方法的检出限(limit of detection,LOD)为0.012 mg/kg,定量限(limit of quantity,LOQ)为0.04 mg/kg。结论该方法准确、灵敏度高,适用于糕点等焙烤食品中富马酸二甲酯残留水平测定。展开更多
为检测烘焙类食品中的叶黄素酯以及筛选无乙醚的萃取溶剂,本文对烘焙产品中的叶黄素酯皂化时间、KOH浓度以及不同萃取溶剂的萃取效果进行研究。结果表明检测烘焙食品中叶黄素酯的皂化最优条件为:2 g样品(面糊/面团),0.2 g BHT,10 mL无...为检测烘焙类食品中的叶黄素酯以及筛选无乙醚的萃取溶剂,本文对烘焙产品中的叶黄素酯皂化时间、KOH浓度以及不同萃取溶剂的萃取效果进行研究。结果表明检测烘焙食品中叶黄素酯的皂化最优条件为:2 g样品(面糊/面团),0.2 g BHT,10 mL无水乙醇,10 mL 60 g/100 mL KOH水溶液,室温振荡3 h。萃取溶剂环己烷:正己烷:乙酸乙酯=1:2:2为最佳萃取剂,回收率为94.31%~103.83%,精密度实验相对标准偏差均小于5%。表明该方法适合于烘焙类食品中叶黄素酯的提取及检测。展开更多
文摘Objective: Few studies have related nutritional factors with quality of life in healthy populations. Our aim was to analyze the relationship between commercial bakery, fast food or soft drinks consumption and mental and physical quality of life. Study Design: This analysis included 8335 participants from the 'Seguimiento Universidad de Navarra' (SUN) Project (a multipurpose, dynamic cohort). Methods: The consumption of commercial bakery, fast food and soft drinks was assessed through a validated food-frequency questionnaire at baseline. Quality of life was measured after 4 years of follow-up with the Short-Form 36 (SF-36) Health Survey. Generalized Linear Models were fit to assess the regression coefficients (b) and their 95% confidence intervals (95% CI) for the association between commercial bakery, fast food and soft drinks consumption and each domain and the two standardized measures of the SF-36. Results: As compared to the participants in the lowest quintile of consumption, those participants in the highest quintile of consumption of commercial bakery, fast food and soft drinks showed a score significantly lower (>2 points) for vitality (b = -2.14, 95% CI = -3.31 to -0.96), role emotional (b = -2.23, 95% CI = -4.33 to -0.13), and role physical (b = -2.31, 95% IC = -4.26 to -0.36) domains with statistically significant dose-response relationships (p for trend < 0.05). When the food groups were analysed separately, significant inverse associations were found only for commercial bakery and fast-food consumption. Conclusions: The results suggest that high consumption of commercial bakery, fast-food and soft drinks at baseline was associated with worse scores on self-perceived quality of life. This association was stronger for the mental domains of the SF-36.
基金the Key Science and Technology Program of the Market Supervision Administration of Jiangsu Province(No.KJ196035)the Key Science and Technology Program of the Market Supervision Administration of Nanjing(No.KJ2019043),China.
文摘Food allergy is a growing health issue worldwide and the demand for sensitive,robust and high-throughput analytical methods is rising.In recent years,mass spectrometry-based methods have been established for multiple food allergen detection.In the present study,a novel method was developed for the simultaneous detection of almond,cashew,peanut,and walnut allergens in bakery foods using liquid chromatography–mass spectrometry.Proteins unique to these four ingredients were extracted,followed by trypsin digestion,quadrupole time-of-flight(Q-TOF)mass spectrometry and bioinformatics analysis.The raw data were processed by de-novo sequencing module plus PEAKS DB(database search)module of the PEAKS software to screen peptides specific to each nut species.The thermal stability and uniqueness of these candidate peptides were further verified using triple quadrupole mass spectrometry(QQQ-MS)in multiple reaction monitoring(MRM)mode.Each nut species was represented by four peptides,all of which were validated for label-free quantification(LFQ).Calibration curves were constructed with good linearity and correlation coefficient(r 2)greater than 0.99.The limits of detection(LODs)were determined to range from 0.11 to 0.31 mg/kg,and were compared with the reference doses proposed by Voluntary Incidental Trace Allergen Labelling(VITAL).The recoveries of the developed method in incurred bakery food matrices ranged from 72.5%to 92.1%with relative standard deviations(RSD)of<5.2%.The detection of undeclared allergens in commercial bakery food samples confirmed the presence of these allergens.In conclusion,this method provides insight into the qualitative and quantitative detection of trace levels of nut allergens in bakery foods.
文摘目的建立凝胶渗透色谱净化.气相色谱.质谱.内标法测定焙烤食品中富马酸二甲酯残留量的方法。方法试样经乙酸乙酯超声提取,经凝胶渗透色谱(gel permeation chromatography,GPC)净化,采用选择离子监测模式(selective ion monitoring,SIM)进行气相色谱一质谱(gas chromatography-mass spectrometry,GC-MS)测定,采用丁二酸二甲酯作为内标,以内标法定量。结果富马酸二甲酯在0.02~5.00 mg/L内呈良好的线性关系,相关系数(r)大于0.9999;0.1、0.2和1.0 mg/kg水平的空白糕点加标回收实验的回收率为92.0%~107%,相对标准偏差(RSD)为3.2%~5.7%(n=6);方法的检出限(limit of detection,LOD)为0.012 mg/kg,定量限(limit of quantity,LOQ)为0.04 mg/kg。结论该方法准确、灵敏度高,适用于糕点等焙烤食品中富马酸二甲酯残留水平测定。
文摘为检测烘焙类食品中的叶黄素酯以及筛选无乙醚的萃取溶剂,本文对烘焙产品中的叶黄素酯皂化时间、KOH浓度以及不同萃取溶剂的萃取效果进行研究。结果表明检测烘焙食品中叶黄素酯的皂化最优条件为:2 g样品(面糊/面团),0.2 g BHT,10 mL无水乙醇,10 mL 60 g/100 mL KOH水溶液,室温振荡3 h。萃取溶剂环己烷:正己烷:乙酸乙酯=1:2:2为最佳萃取剂,回收率为94.31%~103.83%,精密度实验相对标准偏差均小于5%。表明该方法适合于烘焙类食品中叶黄素酯的提取及检测。
