{"title":"[Rapid and direct lead determination in honey].","authors":"M Voget, H Baudisch","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Use of honey as a biological indicator for heavy metal contamination entails the analysis of a greater number of samples. To date the complex sugar matrix required sample preparation using digestion methods, which were time consuming and involved a high risk of contamination or loss. It is now possible, using the method described here, to measure lead in honey without degradation with the help of microprocessor-programmed conditions of temperature and time in the ggraphite tube of the Atomic-Absorption-Spectrophotometer. Two samples were analysed. One had a low lead content (I), the other had a high lead content (II). The statistical variation for a series of determinations was 8.3% (I, N=10) and 5.6% (II, N=22). These results can be considered satisfactory.</p>","PeriodicalId":23941,"journal":{"name":"Zeitschrift fur Lebensmittel-Untersuchung und -Forschung","volume":"176 5","pages":"360-2"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17668842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Detection and determination of protein-bound formaldehyde. II. Improved recovery of formaldehyde by reduction with sodium cyanoborohydride (NaCNBH3)].","authors":"W Brunn, H Klostermeyer","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>When using NaCNBH3 as a reductant, it is possible to recover 70% of added formaldehyde in foods--in this skim milk powder. Formaldehyde is attached to the epsilon-Aminogroups of lysine and is detected after reduction in form of N epsilon-methyllysine in an automated amino acid analyzer system. After addition of N alpha-acetyllysine the reduction is carried out by incubating the skim milk powder at 70 degrees C for 1 h. The best combination of pH, concentration of reductant, time and temperature of incubation is described.</p>","PeriodicalId":23941,"journal":{"name":"Zeitschrift fur Lebensmittel-Untersuchung und -Forschung","volume":"176 5","pages":"367-70"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17668848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Laws and regulations. Eggs, egg products, egg substitutes. Federal Republic of Germany].","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23941,"journal":{"name":"Zeitschrift fur Lebensmittel-Untersuchung und -Forschung","volume":"158 5","pages":"suppl 153-68"},"PeriodicalIF":0.0,"publicationDate":"1975-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12416940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Efficacy and duration of chemical food preservatives].","authors":"M von SCHELHORN","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23941,"journal":{"name":"Zeitschrift fur Lebensmittel-Untersuchung und -Forschung","volume":"92 5","pages":"256-66"},"PeriodicalIF":0.0,"publicationDate":"1951-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24270210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Heat loss of food in hot-carts].","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23941,"journal":{"name":"Zeitschrift fur Lebensmittel-Untersuchung und -Forschung","volume":"91 5","pages":"360-2"},"PeriodicalIF":0.0,"publicationDate":"1950-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24216636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Injury to the hair as a basis of evaluating permanent waving preparations].","authors":"K E SCHULTE","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23941,"journal":{"name":"Zeitschrift fur Lebensmittel-Untersuchung und -Forschung","volume":"90 4","pages":"293-4"},"PeriodicalIF":0.0,"publicationDate":"1950-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24740724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Nes methods of identification of anti- and pro-oxygenic properties of accessory substances of natural fats].","authors":"W WACHS","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23941,"journal":{"name":"Zeitschrift fur Lebensmittel-Untersuchung und -Forschung","volume":"90 4","pages":"291-2"},"PeriodicalIF":0.0,"publicationDate":"1950-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24740723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Toxicity of glycols].","authors":"A W FORST","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23941,"journal":{"name":"Zeitschrift fur Lebensmittel-Untersuchung und -Forschung","volume":"90 4","pages":"288-9"},"PeriodicalIF":0.0,"publicationDate":"1950-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24740721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Structure and consistency of butter].","authors":"W MOHR","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23941,"journal":{"name":"Zeitschrift fur Lebensmittel-Untersuchung und -Forschung","volume":"90 4","pages":"289-90"},"PeriodicalIF":0.0,"publicationDate":"1950-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24740722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}