THE QUALITATIVE COMPOSITION OF PEAT SMOKE

1973 ◽  
Vol 79 (3) ◽  
pp. 203-209 ◽  
Author(s):  
C. Macfarlane ◽  
J. B. Lee ◽  
M. B. Evans
2019 ◽  
Vol 24 (4) ◽  
pp. 316-322
Author(s):  
Yu. A. Ippolitov ◽  
T. A. Rusanova ◽  
E. Yu. Zolotareva ◽  
E. O. Aleshina ◽  
M. V. Berkovich ◽  
...  

HortScience ◽  
1990 ◽  
Vol 25 (5) ◽  
pp. 556-559 ◽  
Author(s):  
Fredy Van Wassenhove ◽  
Patrick Dirinck ◽  
Georges Vulsteke ◽  
Niceas Schamp

A two-dimensional capillary gas chromatographic method was developed to separate and quantify aromatic volatiles of celery in one analysis. The isolation, identification, and quantification of the volatile compounds of four cultivars of blanching celery (Apium graveolens L. var. dulce) and six cultivars of celeriac (Apium graveolens L. var. rapaceum) are described. The qualitative composition of Likens-Nickerson extracts of both cultivars is similar. The concentration of terpenes and phthalides, the key volatile components, found in various cultivars of both celery and celeriac varied over a wide range.


Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 75
Author(s):  
Alexandra Nanou ◽  
Athanasios Mallouchos ◽  
Efstathios Z. Panagou

Olives are characterized by a wide variety of volatile compounds, which are primarily products of microbial metabolism that contribute to the organoleptic characteristics of the final product and especially to its flavor. The volatilome in Spanish-style processed green olives of Conservolea and Halkidiki cultivars were analytically characterized. A solid phase micro-extraction (SPME) technique was used for the extraction of volatile components from the olive samples that were further identified and quantified by gas chromatography coupled to mass spectrometry (GC–MS). Eighty-eight (88) compounds were identified, including several aldehydes, ketones, acids, terpenes, but mainly esters and alcohols. Results showed that there were no significant differences in the qualitative composition of the volatile profiles between the two varieties. Acetic and propanoic acids, thymol, ethanol, 2-butanol, 1-propanol, ethyl acetate as well as ethyl propanoate were the most dominant compounds found in both cultivars. However, some quantitative differences were spotted between the two varieties regarding some of the identified volatile compounds. The quantity of 2-butanol was higher in the Halkidiki variety, while propanoic acid ethyl ester was found in higher amounts in the Conservolea variety. Furthermore, differences in the quantities of some volatile compounds over time were observed. Most of the identified compounds presented an increasing trend during storage.


2021 ◽  
Vol 11 (6) ◽  
pp. 2555
Author(s):  
Lyudmila Asyakina ◽  
Svetlana Ivanova ◽  
Alexander Prosekov ◽  
Lyubov Dyshlyuk ◽  
Evgeny Chupakhin ◽  
...  

This work aims to study the qualitative composition of biologically active substance (BAS) extracts in vitro callus, cell suspension, and root cultures of the medicinal plant Rhaponticum carthamoides. The research methodology is based on high-performance liquid chromatography, and 1H nuclear magnetic resonance (NMR) spectra, to study the qualitative and quantitative analysis of BAS. The results of the qualitative composition analysis of the dried biomass extracts of in vitro callus, cell suspension and root cultures showed that the main biologically active substances in the medicinal plant Rhaponticum carthamoides are 2-deoxy-5,20,26-trihydroxyecdyson (7 mg, yield 0.12%), 5,20,26-trihydroxyecdyson 20,22-acetonide (15 mg, yield 0.25%), 2-deoxy-5,20,26-trihydroxyecdyson 20,22-acetonide (6 mg, yield 0.10%), 20,26-dihydroxyecdyson 20,22-acetonidecdyson 20,22-acetonide (5 mg, yield 0.09%), and ecdyson 20,22-acetonide (6 mg, yield 0.10%). In the future, it is planned to study the antimicrobial, antioxidant, and antitumor activity of BAS of extracts of in vitro callus, cell suspension, and root cultures of the medicinal plant Rhaponticum carthamoides, for the production of pharmaceuticals and dietary supplements with antitumor, antimicrobial and antioxidant effects.


Fitoterapia ◽  
2020 ◽  
Vol 3 (3) ◽  
pp. 44-50
Author(s):  
S.M. Marchyshyn ◽  
◽  
L.V. Slobodianiuk ◽  
R.Yu. Basaraba ◽  
N.А. Hudz ◽  
...  

Keywords: amino acids; common pussytoes; yacon; stevia; golden marigolds; leaves; herb; aster family; high performance liquid chromatography. For the first time the qualitative composition was studied and the quantitative content of amino acids in the herb of common pussytoes, yacon leaves, stevia leaves, herb of golden marigolds was determined by HPLC. 17 bound and 16 free amino acids were identified in the herb of common pussytoes, in the herb of golden marigolds, yacon leaves and stevia leaves – 12 and 5, 17 and 11 and 16 and 14 amino acids, respectively. The highest content of the sum of essential and substitute amino acids is contained in the leaves of stevia; the lowest content of the sum of essential amino – in the herb of golden marigolds, the sum of essential amino acids – in the herb of common pussytoes.


2021 ◽  
pp. 34-43
Author(s):  
V.B. Bychin

Personnel evaluation is a crucial factor contributing to the staff motivation, on the one hand, and on the other — allowing setting remuneration correctly and determining both the quantitative and qualitative composition of the company's personnel. The article is devoted to the study of the problem of integrated assessment of the organization's personnel.


Author(s):  
Андрей Владимирович Кулаков ◽  
Ольга Рениславовна Родионова

В настоящее время создание безопасных условий исполнения и отбывания уголовного наказания в виде лишения свободы, укрепление защищенности сотрудников пенитенциарных учреждений от возможных угроз и опасных посягательств является одной из актуальных задач, стоящих перед уголовно-исполнительной системой. Данная ситуация сложилась в результате современной государственной политики в сфере противодействия преступности, а именно гуманизации наказания, что привело к изменению количественного и качественного состава осужденных, отбывающих наказание в местах лишения свободы, и осложнило оперативную обстановку. В статье отмечается, что несмотря на незначительное количество действий, дезорганизующих работу исправительного учреждения, в структуре пенитенциарной преступности, данные деликты имеют повышенную общественную опасность, так как совершаются в период отбывания наказания, и высокую латентность в силу как объекта (основного, дополнительного и факультативного), так и способа посягательства. Признавая криминологические данные основой для выработки мер противодействия преступности, в том числе пенитенциарной, авторы исследуют показатели одного из видов преступлений, совершаемых в исправительных колониях, - дезорганизация деятельности учреждений, обеспечивающих изоляцию от общества, а также личность преступника. Проведенное исследование позволило дать криминологическую характеристику преступлений, направленных на дезорганизацию деятельности учреждений, обеспечивающих изоляцию от общества, в частности, исправительных учреждений, а также определить особенности личности осужденных, их совершающих. Результаты исследования могут быть использованы при разработке теории преступного поведения и личности преступника, в частности, пенитенциарного. Currently, the creation of safe conditions for the execution and serving of criminal sentences in the form of deprivation of liberty, strengthening the protection of prison staff from possible threats and dangerous attacks is one of the urgent tasks facing the penal system. This situation has developed as a result of modern state policy in the field of combating crime, namely, the humanization of punishment, which has led to a change in the quantitative and qualitative composition of convicts serving sentences in places of deprivation of liberty, and has complicated the operational situation. The article notes that despite the small number of actions that disorganize the work of a correctional institution, in the structure of penitentiary crime, these torts have an increased public danger, since they are committed during the period of serving a sentence, and high latency due to both the object (both the main and optional) and the method of encroachment. Recognizing criminological data as the basis for developing measures to counteract crime, including penitentiary, the authors study indicators of one of the types of crimes committed in correctional colonies - disorganization of institutions that provide isolation from society, as well as the identity of the criminal. The research made it possible to give criminological characteristics of crimes aimed at disorganizing the activities of institutions that provide isolation from society, in particular correctional institutions, as well as to determine the personality of the convicted person who commits them.The results of the study can be used in the development of a General theory of criminal behavior and the personality of the criminal, and the penitentiary in particular.


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