Statistical Analyses on the Essential Oil of Italian Coriander (Coriandrum sativumL.) Fruits of Different Ages and Origins

2002 ◽  
Vol 14 (6) ◽  
pp. 389-396 ◽  
Author(s):  
Alessandra Carrubba ◽  
Raffaele la Torre ◽  
Antonella Di Prima ◽  
Filippo Saiano ◽  
Giuseppe Alonzo
Keyword(s):  
Essential Oil ◽  
Statistical Analyses ◽  
Different Ages

scholarly journals Changes in the essential oil composition of Majorana hortensis Moench. cultivated in India during plant ontogeny

2010 ◽  
Vol 75 (4) ◽  
pp. 441-447 ◽  
Author(s):  
Ram Verma ◽  
Rajesh Verma ◽  
Amit Chauhan ◽  
Ajai Yadav
Keyword(s):  
Essential Oil ◽  
Oil Content ◽  
Western Himalaya ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Plant Ontogeny ◽  
Different Ages

The essential oil content and composition of 'sweet marjoram? (Majorana hortensis Moench) cultivated in the Kumaon region of the western Himalaya was studied at different ages of the crop. The samples were taken after 60, 90, 120 and 150 days of transplanting. The essential oil contents varied from 0.20 % to 0.70 %. The essential oil was analyzed by GC and GC-MS. Twenty eight components, representing 96.53% - 98.44% of the oil, were identified. The major essential oil constituents, viz., (Z)-sabinene hydrate (37.05% - 47.49%), terpinen-4-ol (14.45% - 16.22%) and (E)-sabinene hydrate (5.81% - 6.97 %) showed considerable variation in their concentrations in relation to crop age.

scholarly journals Chemotypes of Pistacia atlantica Leaf Essential Oils from Algeria

2010 ◽  
Vol 5 (1) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Nadhir Gourine ◽  
Isabelle Bombarda ◽  
Mohamed Yousfi ◽  
Emile M. Gaydou
Keyword(s):  
Principal Component Analysis ◽  
Essential Oil ◽  
Essential Oils ◽  
Principal Component ◽  
Component Analysis ◽  
Statistical Analyses ◽  
Pistacia Atlantica

The essential oils obtained by hydrodistillation of Pistacia atlantica Desf. leaves collected from different regions of Algeria were analyzed by GC and GC-MS. The essential oil was rich in monoterpenes and oxygenated sesquiterpenes. The major components were α-pinene (0.0-67%), δ-3-carene (0.0-56%), spathulenol (0.5-22%), camphene (0.0-21%), terpinen-4-ol (0.0-16%) and β-pinene (0.0-13%). Among the various components identified, twenty were used for statistical analyses. The result of principal component analysis (PCA) showed the occurrence of three chemotypes: a δ-3-carene chemotype (16.4-56.2%), a terpinen-4-ol chemotype (10.8-16.0%) and an α-pinene/camphene chemotype (10.9-66.6% / 3.8-20.9%). It was found that the essential oil from female plants (δ-3-carene chemotype) could be easily differentiated from the two other chemotypes corresponding to male trees.

scholarly journals Effects of Biodynamic Production on Growth and Essential Oil Content in Basil

2016 ◽  
Vol 75 (2) ◽  
pp. 260-265 ◽  
Author(s):  
Slavica Dudaš ◽  
Danijela Poljuha ◽  
Ivana Šola ◽  
Sabina Šegula ◽  
Sanja Varga ◽  
...  
Keyword(s):  
Essential Oil ◽  
Plant Height ◽  
Significant Influence ◽  
Oil Content ◽  
Sowing Date ◽  
Ocimum Basilicum ◽  
Statistical Analyses ◽  
Leaf Mass ◽  
Herb Yield ◽  
Ocimum Americanum

Abstract The effects of a biodynamic sowing calendar on the growth (plant height, fresh herb yield, nodes number) and quality (percentage of leaf mass, essential oil content) of three basil species, Ocimum americanum L., Ocimum × hybrida and Ocimum basilicum L., represented by the cultivars ‘Rosso’ and ‘Eco Genovese’, were tested. Statistical analyses showed that the species had greater impact on the observed parameters than either the sowing date or the species and sowing date in combination. The species showed a significant influence on all five tested parameters, while sowing date and interaction of both factors significantly influenced plant height, leaf percentage and essential oil content. The best yield per plant was obtained for O. × hybrida and O. basilicum ‘Eco Genovese’. The lowest species O. × hybrida produced the highest amount of essential oil. »Nodes number« parameter most clearly separated the species, but not the cultivars. Even though O. americanum gave the tallest plants, it did not yield either the highest amount of fresh herb or essential oil. This species’ height was most consistent, considering the significant impact of biodynamic rhythm. Sowing date was not crucial for basil fresh yield; however if there is a need for taller plants with a higher percentage of leaf mass and more essential oil, sowing date needs to be controlled.

scholarly journals Development of a Psychological Game Questionnaire

2021 ◽  
Vol 12 (2) ◽  
pp. 25-32
Author(s):  
Iming Huang
Keyword(s):  
Literature Review ◽  
Research Study ◽  
Statistical Analyses ◽  
Educational Levels ◽  
Different Ages ◽  
Final Questionnaire ◽  
Three Components ◽  
Psychological Games

A research study is described, conducted in Taiwan with 615 subjects across different ages, educational levels and occupations, to develop a questionnaire that will measure three components of psychological games: hidden messages or ulterior transactions, role switches on the drama triangle, and repressed emotions. A literature review is included and the development of the questionnaire through a pre-test option with 226 subjects is described. The results of statistical analyses are described and the final questionnaire, in English and in Chinese, is included as appendices.

scholarly journals A method of presenting longitudinal growth data

1979 ◽  
Vol 41 (1) ◽  
pp. 53-56
Author(s):  
A. E. Dugdale
Keyword(s):  
Early Life ◽  
Growth Function ◽  
Statistical Properties ◽  
Statistical Analyses ◽  
Longitudinal Growth ◽  
Growth Data ◽  
Different Ages ◽  
Growth Profiles

1. Longitudinal growth profiles contain much information but are difficult to incorporate into mathematical and statistical analyses.2. A growth function, which is a weighed average of growth achievement at different ages, is proposed.3. This function is a non-dimensional number with defined statistical properties, and emphasizes growth achievement in early life. It can be used to compare the growth of individuals and populations.

Essential oil from Zanthoxylum tingoassuiba loaded into multilamellar liposomes useful as antimicrobial agents

2009 ◽  
pp. 1-8 ◽  
Author(s):  
C. B. Detoni ◽  
E. C. M. Cabral-Albuquerque ◽  
S. V. A. Hohlemweger ◽  
C. Sampaio ◽  
T. F. Barros ◽  
...  
Keyword(s):  
Essential Oil ◽  
Antimicrobial Agents ◽  
Multilamellar Liposomes

Structuring Situational Information

2015 ◽  
Vol 20 (3) ◽  
pp. 176-189 ◽  
Author(s):  
John F. Rauthmann
Keyword(s):  
Statistical Analyses ◽  
Current Work ◽  
Common Language ◽  
Road Map ◽  
Taxonomic Approach ◽  
Situational Information

Abstract. There is as yet no consensually agreed-upon situational taxonomy. The current work addresses this issue and reviews extant taxonomic approaches by highlighting a “road map” of six research stations that lead to the observed diversity in taxonomies: (1) theoretical and conceptual guidelines, (2) the “type” of situational information studied, (3) the general taxonomic approach taken, (4) the generation of situation pools, (5) the assessment and rating of situational information, and (6) the statistical analyses of situation data. Current situational taxonomies are difficult to integrate because they follow different paths along these six stations. Some suggestions are given on how to spur integrated taxonomies toward a unified psychology of situations that speaks a common language.

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