Preparation of Gel Alcohol Flavored with Essential Oils. An Employ of Laboratory Techniques in the Organic Chemistry Study

Guntero, Vanina A.; Kneeteman, Marı́a N.; Mancini, Paolo

doi:10.12691/wjce-5-3-1

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…Based on the bibliographic search and analysis [13], all the groups selected as base reagents carbopol (cross-linked polyacrylate polymer), triethanolamine (TEA), distilled water and ethanol. Amine was selected for its excellent properties of gelification, ethanol was chosen like combustible and a carbopol by its properties as thickener (Table 1).…”

Section: Resultsmentioning

confidence: 99%

Teaching of Chemistry Applied. Development of a Laboratory-scale Fire Started

Guntero¹,

Mancini²,

Ferretti³

et al. 2018

WJCE

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The present laboratory work based in the preparation of fire started is proposed as an alternative in the teaching of chemistry for students of high school, with the purpose of articulate and integrate the abilities of students from the knowledge acquired. In this sense, is proposed the progression of learning, so that students develop from a specific concept towards the understanding of a phenomenon through a concrete and accessible teaching practice that assure that interaction. This practice allowed consolidating and expanding the teaching-learning process. Based on the interest in the topic propounded, the students were able to internalize the knowledge, reaching a satisfactory theoretical-practical relationship.

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Section: Resultsmentioning

confidence: 99%

Teaching of Chemistry Applied. Development of a Laboratory-scale Fire Started

Guntero¹,

Mancini²,

Ferretti³

et al. 2018

WJCE

Self Cite

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“…The concentrate was analyzed by GC to determinate the percent total peak-area of aroma compounds [29]. The concentration of eugenol was calculated from the calibration line obtained (Equation 2).…”

Section: Gas Chromatographymentioning

confidence: 99%

Introducing Organic Chemistry Students to the Extraction of Natural Products Found in Vegetal Species

Guntero¹,

Mancini²,

Kneeteman³

2017

WJCE

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This work constitutes a new strategy for teaching-learning the chemistry of natural products, being the students active participants in the process. Results showed in this activity contributed not only to the understanding of the subject but also turned out to be an important pillar of motivation. An essential oil is any of a class of volatile oils that give plants their characteristic odor. Essential oils are also known as ethereal oil, volatile oil, aetherolea, or simply as the oil of the plant from which they are extracted, such as oil of clove. The oil is "essential" in the sense that it contains the "essence of" vegetal specie fragrance, the characteristic fragrance of the plant from which it is derived. These can be extracted from different parts of plants such as stems, leaves and flowers. In this work, two conventional methods (steam distillation and Soxhlet extraction) and one non-conventional method (microwave-assisted extraction), was developed under different conditions from clove. The yield of clove oil and yield of eugenol were obtained; and the concentration of eugenol present was assessed by gas chromatography. The main objective was that the experimental activity with the theoretical foundation will provide to the students of organic chemistry the ability to link concepts and develop skills in the laboratory.

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Preparation of Gel Alcohol Flavored with Essential Oils. An Employ of Laboratory Techniques in the Organic Chemistry Study

Cited by 2 publications

References 25 publications

Teaching of Chemistry Applied. Development of a Laboratory-scale Fire Started

Teaching of Chemistry Applied. Development of a Laboratory-scale Fire Started

Introducing Organic Chemistry Students to the Extraction of Natural Products Found in Vegetal Species

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