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Informacje o czasopiśmie
Format
Czasopismo
eISSN
2719-9509
Pierwsze wydanie
01 Jan 1992
Częstotliwość wydawania
4 razy w roku
Języki
Angielski

Wyszukiwanie

Tom 2 (1964): Zeszyt 5 (May 1964)

Informacje o czasopiśmie
Format
Czasopismo
eISSN
2719-9509
Pierwsze wydanie
01 Jan 1992
Częstotliwość wydawania
4 razy w roku
Języki
Angielski

Wyszukiwanie

7 Artykułów
Otwarty dostęp

Phenols in Tobacco Leaves and Tobacco Smoke / Über die phenolischen Inhaltsstoffe des Tabaks und des Tabakrauches

Data publikacji: 28 May 2014
Zakres stron: 159 - 179

Abstrakt

Abstract

This paper reviews

1.the plant phenols occurring in tobacco leaves, and 2.the phenols of tobacco smoke. These constituents are summarized in

2 tables. The leaf contains mainly quinic acid esters of hydroxy-cinnamic acids (chlorogenic acids), flavonol-glycosides, and hydroxy-coumarins. Main constituents are chlorogenic acid and rutin. Tobacco smoke does not contain these compounds, but a number of simpler phenols and phenol ethers, and phenolic acids. Besides this paper describes the transformation of plant phenols by the curing of tobacco, such as the formation of brown complex products from chlorogenic acid and rutin. Furthermore, the biosynthesis of plant phenols, their importance for the quality of tobacco, their phytopathological importance, and the effect of phenols occurring in tobacco leaves and tobacco smoke on the human organism are shortly reviewed

Otwarty dostęp

Aromatic Hydrocarbons in Tobacco Smoke / Aromatische Kohlenwasserstoffe im Tabakrauch

Data publikacji: 28 May 2014
Zakres stron: 180 - 204

Abstrakt

Abstract

This compilation of 93 aromatic hydrocarbons present in tobacco smoke refers to 117 references spread over the relevant literature

Otwarty dostęp

The Influence of Tobacco Moisture Content on the Composition of Mainstream Smoke Yield II / Einfluss des Feuchtigkeitsgehaltes von Cigaretten auf die Zusammensetzung des Rauches ll

Data publikacji: 28 May 2014
Zakres stron: 205 - 208

Abstrakt

Abstract

The influence of tobacco moisture content on the yield of phenols in the mainstream smoke of a plain cigarette was studied. The yield of phenols calculated on the basis of dry weight of burnt tobacco decreases by 27 % over the range of moisture content adjustable by equilibrium.

Otwarty dostęp

Chemistry and Microbiology of Tobacco Redrying / Zur Chemie und Mikrobiologie des Redryverfahrens

Data publikacji: 28 May 2014
Zakres stron: 209 - 216

Abstrakt

Abstract

The present paper reports on experiences gained, in practice, by the use of the statistic apparatus type 611 of the firm of redrying were examined

Otwarty dostęp

Filling Capacity of Cut Tobacco. Method of Determination Developed by the „Centre d’Essais et Recherches Techniques du S.E.I.T.A.” / Die Füllfähigkeit von Schnittabak: Bestimmungsmethode des “Centre d'Essais et Recherches Techniques du S.E.I.T.A.”

Data publikacji: 28 May 2014
Zakres stron: 217 - 221

Abstrakt

Abstract

The quantity of tobacco which is necessary for the correct filling of a cigarette depends on different factors and particularly on the filling weight (apparent density) of tobacco rag at a given pressure. Some years ago the ''Centre d'Essais'' of the SEITA developed an apparatus by which the filling weight being related to the filling capacity can be measured. The present paper describes the apparatus and its working conditions and deals with the causes of errors by which the measurements can be influenced.

Otwarty dostęp

The Statistic Apparatus Type 611 Developed by Güttinger and its Practical Meaning for Quality Control / Das Statistic-Gerät (Typ 611) der Firma Güttinger und seine praktische Bedeutung fuer die Qualitätskontrolle

Data publikacji: 28 May 2014
Zakres stron: 223 - 230

Abstrakt

Abstract

The present paper reports on experiences gained, in practice, by the use of the statistic apparatus type 611 of the firm of Güttinger. By means of transmitting keys the transistorized calculating machine permits the determination of mean values and standard deviations of ten classes comprising 99 pieces each. It is demonstrated that several classes can combine and that piece numbers exceeding the mentioned limit can be adjusted by division without diminishing significantly the accuracy of the resulting values.

Otwarty dostęp

A Nomograph for the Calculation of Cigarette Weight Scattering / Nomogramm für die Berechnung der Streuung von Cigarettengewichten

Data publikacji: 28 May 2014
Zakres stron: 231 - 236

Abstrakt

Abstract

The present paper deals with a nomograph by which rapid calculations can be made for the determination of the different parameters used for the characterization of cigarette populations

7 Artykułów
Otwarty dostęp

Phenols in Tobacco Leaves and Tobacco Smoke / Über die phenolischen Inhaltsstoffe des Tabaks und des Tabakrauches

Data publikacji: 28 May 2014
Zakres stron: 159 - 179

Abstrakt

Abstract

This paper reviews

1.the plant phenols occurring in tobacco leaves, and 2.the phenols of tobacco smoke. These constituents are summarized in

2 tables. The leaf contains mainly quinic acid esters of hydroxy-cinnamic acids (chlorogenic acids), flavonol-glycosides, and hydroxy-coumarins. Main constituents are chlorogenic acid and rutin. Tobacco smoke does not contain these compounds, but a number of simpler phenols and phenol ethers, and phenolic acids. Besides this paper describes the transformation of plant phenols by the curing of tobacco, such as the formation of brown complex products from chlorogenic acid and rutin. Furthermore, the biosynthesis of plant phenols, their importance for the quality of tobacco, their phytopathological importance, and the effect of phenols occurring in tobacco leaves and tobacco smoke on the human organism are shortly reviewed

Otwarty dostęp

Aromatic Hydrocarbons in Tobacco Smoke / Aromatische Kohlenwasserstoffe im Tabakrauch

Data publikacji: 28 May 2014
Zakres stron: 180 - 204

Abstrakt

Abstract

This compilation of 93 aromatic hydrocarbons present in tobacco smoke refers to 117 references spread over the relevant literature

Otwarty dostęp

The Influence of Tobacco Moisture Content on the Composition of Mainstream Smoke Yield II / Einfluss des Feuchtigkeitsgehaltes von Cigaretten auf die Zusammensetzung des Rauches ll

Data publikacji: 28 May 2014
Zakres stron: 205 - 208

Abstrakt

Abstract

The influence of tobacco moisture content on the yield of phenols in the mainstream smoke of a plain cigarette was studied. The yield of phenols calculated on the basis of dry weight of burnt tobacco decreases by 27 % over the range of moisture content adjustable by equilibrium.

Otwarty dostęp

Chemistry and Microbiology of Tobacco Redrying / Zur Chemie und Mikrobiologie des Redryverfahrens

Data publikacji: 28 May 2014
Zakres stron: 209 - 216

Abstrakt

Abstract

The present paper reports on experiences gained, in practice, by the use of the statistic apparatus type 611 of the firm of redrying were examined

Otwarty dostęp

Filling Capacity of Cut Tobacco. Method of Determination Developed by the „Centre d’Essais et Recherches Techniques du S.E.I.T.A.” / Die Füllfähigkeit von Schnittabak: Bestimmungsmethode des “Centre d'Essais et Recherches Techniques du S.E.I.T.A.”

Data publikacji: 28 May 2014
Zakres stron: 217 - 221

Abstrakt

Abstract

The quantity of tobacco which is necessary for the correct filling of a cigarette depends on different factors and particularly on the filling weight (apparent density) of tobacco rag at a given pressure. Some years ago the ''Centre d'Essais'' of the SEITA developed an apparatus by which the filling weight being related to the filling capacity can be measured. The present paper describes the apparatus and its working conditions and deals with the causes of errors by which the measurements can be influenced.

Otwarty dostęp

The Statistic Apparatus Type 611 Developed by Güttinger and its Practical Meaning for Quality Control / Das Statistic-Gerät (Typ 611) der Firma Güttinger und seine praktische Bedeutung fuer die Qualitätskontrolle

Data publikacji: 28 May 2014
Zakres stron: 223 - 230

Abstrakt

Abstract

The present paper reports on experiences gained, in practice, by the use of the statistic apparatus type 611 of the firm of Güttinger. By means of transmitting keys the transistorized calculating machine permits the determination of mean values and standard deviations of ten classes comprising 99 pieces each. It is demonstrated that several classes can combine and that piece numbers exceeding the mentioned limit can be adjusted by division without diminishing significantly the accuracy of the resulting values.

Otwarty dostęp

A Nomograph for the Calculation of Cigarette Weight Scattering / Nomogramm für die Berechnung der Streuung von Cigarettengewichten

Data publikacji: 28 May 2014
Zakres stron: 231 - 236

Abstrakt

Abstract

The present paper deals with a nomograph by which rapid calculations can be made for the determination of the different parameters used for the characterization of cigarette populations

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