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[Glyceride structure of fats. 11. Structure studies on selected nut fats using lipases]. 脂肪的甘油结构。11. 利用脂肪酶对选定的坚果脂肪进行结构研究。
Die Nahrung Pub Date : 1978-01-01
C Franzke, J Kroll, R Göbel
{"title":"[Glyceride structure of fats. 11. Structure studies on selected nut fats using lipases].","authors":"C Franzke,&nbsp;J Kroll,&nbsp;R Göbel","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Using pancreatic lipase of Geotrichum candidum, the authors determined the fatty acid pattern and the glyceride structure of peanut, filbert, walnut, Brazil nut and cashew-nut fats. Both the fatty acid pattern and the glyceride structure were comparable to those of other vegetable fats of corresponding total fatty acid composition.</p>","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11894036","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}
引用次数: 0
[Body composition of rats fed a high-fat or low-fat diet as related to age]. [喂食高脂或低脂食物的老鼠的身体组成与年龄的关系]。
Die Nahrung Pub Date : 1978-01-01
K Hartmann, C Voss, G Hübner, N Hartmann
{"title":"[Body composition of rats fed a high-fat or low-fat diet as related to age].","authors":"K Hartmann,&nbsp;C Voss,&nbsp;G Hübner,&nbsp;N Hartmann","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11931852","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}
引用次数: 0
[Relationship between diet and some risk factors]. [饮食与某些危险因素的关系]。
Die Nahrung Pub Date : 1978-01-01
T Taschev, P Ilinov, I Stoeva
{"title":"[Relationship between diet and some risk factors].","authors":"T Taschev,&nbsp;P Ilinov,&nbsp;I Stoeva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The authors evaluated data from the dietary histories of 203 individuals from Sofia and Varna who had been asked identical questions. The results of this investigation show that 42% of these these individuals have no marked liking for a certain diet (group 1), 28% prefer a high protein diet (group 2), 23% are partial to a high carbohydrate diet (group 3), and 6% give preference to a high fat diet (group 4). It was found that the individuals in group 1 showed the smallest deviations from the normal values for serum lipids. Coronary symptoms were most marked in the individuals in group 4, followed by those in the groups 3, 2 and 1. It was stated that men prefer a high protein diet to a greater extent than women. Consumers of alcohol and smokers have no liking for a high carbohydrate diet. Individuals prefering fats and a high carbohydrate diet lack a daily dietary rhythm. The latter also showed marked variations in body weight, i.e., periods of weight reduction and periods of weight increase. The most favourable findings with regard to serum lipids, body weight and dietary rhythm were obtained from individuals with obvious preference for a certain diet, i. e., those with a balanced diet. The present investigation is suited as a model for a more comprehensive epidemiological study.</p>","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11905110","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}
引用次数: 0
[Kinetics of the temperature dependence of thermal activation and inactivation of bacterial endospores as a consequential reaction]. [作为相应反应的细菌内生孢子热活化和失活的温度依赖性动力学]。
Die Nahrung Pub Date : 1978-01-01
J Herrmann, M Al-Khayat, H Schleusener
{"title":"[Kinetics of the temperature dependence of thermal activation and inactivation of bacterial endospores as a consequential reaction].","authors":"J Herrmann,&nbsp;M Al-Khayat,&nbsp;H Schleusener","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Reaction kinetics explains the thermal activation and destruction of bacterial endospores as a consequent reaction with the activation rate constant k 1 of the resting spores N 0 and the destruction rate constant k 2 of the heat-activated spores N ++: (formula see text). If one takes also into account the activated spores already present in a suspension, one obtains, at constant temperature, destruction curves that become straight lines when plotted semi-logarithmically or correspond to the convex and concave curves often described in the literature. The D value of destruction must be calculated from the k value of the slowest reaction. Experiments with endospores of Bac. subtilis showed that k 1 greater than k 2 at temperatures less than 100 degrees C, and k 2 greater than k 1 at temperatures greater than 135 degrees C. In case of further confirmation of this theory, far-reaching conclusions might be drawn as to the calculation of the sterilization of F value.</p>","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11319853","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}
引用次数: 0
[Food substitution and consumption development]. [食品替代和消费发展]。
Die Nahrung Pub Date : 1978-01-01
G Ulbricht
{"title":"[Food substitution and consumption development].","authors":"G Ulbricht","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Though being sometimes less in evidence, the food consumption of the population is undergoing a continuous change in course of time. It can be considered as a matual substitution of foods. In most cases, the increase in consumption of certain foods is correlated with the decrease in consumption of other foods. The author points to the contents, principles and examples of food substitutions that had been revealed by studies using a linear optimization model.</p>","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11894034","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}
引用次数: 0
[Free fatty acids of wood mushrooms]. [木菇中的游离脂肪酸]。
Die Nahrung Pub Date : 1978-01-01
L Aho, R Kurkela
{"title":"[Free fatty acids of wood mushrooms].","authors":"L Aho,&nbsp;R Kurkela","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The total lipid content and percentages of free fatty acids in the lipids of nine wood mushrooms were determined. The total lipid content varied from 9% to 16% of the dry matter. Between 15.9 and 46.5% of the total lipids consisted of free fatty acids. The fatty acid composition of the free fatty acids of six mushrooms was analyzed quantitatively. The main component of the free acids was linoleic acid, which accounted for 30.3...60.7% of the free acids.</p>","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11772769","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}
引用次数: 0
[Behavior of Ethephon residues on tomatoes. Part I. Green house tomatoes]. 乙烯利残留在番茄上的行为。第一部分:温室番茄。
Die Nahrung Pub Date : 1978-01-01
H Beitz, U Banasiak, U Bergner
{"title":"[Behavior of Ethephon residues on tomatoes. Part I. Green house tomatoes].","authors":"H Beitz,&nbsp;U Banasiak,&nbsp;U Bergner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The preparation Flordimex, which contains Ethephon (2-chloroethanephosphonic acid) as the active ingredient, is used for accelerating the ripening of tomatoes. During the years 1974--1977, tomato samples from 89 experiments were tested for Ethephon residues. The determination was performed gas chromatographically using alkali flame ionization detector as 2-chloroethanephosphonic acid dimethyl ester; the detection limit of the method was 0.01 mg/kg. The observed results must be evaluated on the basis of the permissible value (1 mg/kg) stipulated for vegetables by the Ministry of Health of the GDR. 1--2 days after the use of concentrations of 0.1%, 0.2%, 0.3% and 0.4%, respectively, the following mean residue values were found: 0.31, 0.50, 0.39 and 0.91 mg/kg, respectively, which decreased but slowly. This leads to the conclusion that formulation concentrations of more than 0.3% and applications of more than 6 1/ha should not be allowed by the Ministry. In case of repeated uses, 3-week intervals are imperative. Under the above-mentioned conditions of use, the mean residue values determined 4--5 days after application approximated 0.6 mg/kg. This period is to be regarded as a tentative waiting-period that must be respected after the treatment of glasshouse tomatoes with Flordimex.</p>","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11905111","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}
引用次数: 0
[Presence of toxic heavy metals (cadmium, lead, zinc and mercury) in fungi]. [真菌中有毒重金属(镉、铅、锌和汞)的存在]。
Die Nahrung Pub Date : 1978-01-01
H Woggon, K Bickerich
{"title":"[Presence of toxic heavy metals (cadmium, lead, zinc and mercury) in fungi].","authors":"H Woggon,&nbsp;K Bickerich","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11771315","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}
引用次数: 0
[Release of toxic agents from ceramic utensils]. [陶瓷器皿中有毒物质的释放]。
Die Nahrung Pub Date : 1978-01-01
H J Herrmann
{"title":"[Release of toxic agents from ceramic utensils].","authors":"H J Herrmann","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Under the influence of acidic agents, ceramic glazes and decorations for ceramics may release certain toxicants, especially lead and cadmium. Both elements are essential constituents of ceramic colours and glazes; their release to acidic foods is technologically unavoidable, but it may be minimized by the utilization of appropriate decoration agents and techniques. In most industrial countries, the release of toxicants from utensils is severely limited, the maximum permissible values and the methods of test and analysis being in part very different and not always in agreement with the demands and conditions of practice. The problems related to the release of toxicants from ceramic utensils are treated from the aspects of ceramics, test techniques, analytics, toxicology and food law, with special regard to the necessity for a well-balanced compromise between the justified hygienic demands of health protection and the actual technological possibilities. The endeavours of the ceramic industry of the GDF to produce ceramic utensils releasing as little toxicants as possible are outlined.</p>","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11426577","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}
引用次数: 0
[Uptake of utilizable food energy by light-weight and heavy-weight rats fed a low-fat or high-fat diet]. [喂食低脂或高脂食物的体重小鼠和体重大鼠摄取可利用食物能量的情况]。
Die Nahrung Pub Date : 1978-01-01
K Hartmann, C Voss, N Hartmann
{"title":"[Uptake of utilizable food energy by light-weight and heavy-weight rats fed a low-fat or high-fat diet].","authors":"K Hartmann,&nbsp;C Voss,&nbsp;N Hartmann","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The uptake of utilizable dietary energy (DE) as affected by diet (containing 3 or 50% (w/w)fat), body mass (BM) and age was investigated in male Wistar rats. In comparing heavy-weight animals fed the high-fat diet (HFD) with light-weight animals fed the low-fat diet (LFD) (differences in BM up to 60%), it was found that the uptakes of DE calculated on animal were significantly higher (up to 55%) in the HFD animals than in the LFD animals; but there were no significant differences when the uptakes of DE were calculated on 100 g BM. Thus, the LFD rats (the diet of which contained a high proportion of protein (70% (w/w)) exhibited no reduced uptakes of utilizable DE as compared to HFD rats. Of the heavy-weight LFD animals and the light-weight HFD animals which showed virtually no differences in BM, the HFD animals take up more utilizable DE (per animal or per 100 g BM) than the LFD animals. This difference, which amounts to 60%, is statistically significant. The comparison of the uptakes of DE/animal/100 g BM by light-weight rats with those by heavy-weight rats fed the same diet showed that the uptakes by the heavy-weight animals were in most cases significantly greater. Consequently, the greater BM of the heavy-weight animals of the respective diet groups must be attributed to more efficient utilization of feed. This is also indicated by the fact that the light-weight HFD animals excret more fat in the faeces than the heavy-weight animals. The amount of fat excreted by the HFD animals is some 10-fold greater than that excreted by the LFD animals. However, when the amount of excreted fat is expressed in % of ingested dietary fat, the fat excretion is of the same order of magnitude on both diets.</p>","PeriodicalId":11281,"journal":{"name":"Die Nahrung","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11931853","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}
引用次数: 0
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