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The distillation of essential oils - Part 1 / Murray Hunter in PERSONAL CARE EUROPE, Vol. 6, N° 2 (04/2013)
[article]
Titre : The distillation of essential oils - Part 1 Type de document : texte imprimé Auteurs : Murray Hunter, Auteur Année de publication : 2013 Article en page(s) : p. 33-36 Langues : Anglais (eng) Catégories : Distillation
Huiles essentiellesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : The purpose of this series of articles is to briefly review the theory and practice of distillation of essential oils. Although many producers use some form of distillation to extract essential oils, very few thoroughly understand the theory behind the practice that lays the basis for the practices they utilise.
This first article will first briefly outline the scientific and engineering principles behind distillation, the second article will outline the various stages and types of distillation, and the final article will conclude with a brief discussion about applying these principles. The practice of distillation goes back to ancient times, perhaps as early as 484 BC, when Herodotus recorded the production of turpentine oil in his writings.1 Strong evidence also exists that the Arabs understood the distillation process, where the words chemistry, alcohol and alembic have their origins. It is most likely the Arabs inherited their knowledge of distillation techniques from the Syrian Empire.2 However, almost all distillation until midway through the nineteenth century was water distillation. Water distillation is where plant material is totally immersed in water, which is brought to a boil by a direct fire. Once the water is at boiling point steam begins to pass through a cooling coil (usually made of copper) to condense the distillate. Oil would then be collected from the top of the collection vessel upon separation with the water. Oils distilled within the geographically-centred and artisan-based perfumery industry at the time included rose, lavender, lavandin, rosemary, and herbs like thyme. Midway through the nineteenth century, the Germans and French in Grasse began experimenting to improve the distillation process. Equipment and techniques for watersteam and vacuum distillation were developed, greatly improving upon yields that were achieved through simple hydro or water distillation. Pre-distillation techniques, like comminution, were enhanced and fertilisers were applied to aromatic crops with dramatic results.3 However, it was only in the beginning of the twentieth century that steam from an external source to the charge bin was introduced, bringing in the method of steam distillation. The equipment and skills used for the distillation of aromatic materials from plant material is still very basic in many parts of the world. Many production centres, like the Australian eucalyptus and tea tree industries in the first half of the twentieth century, utilised available items like ship water tanks as charge bins to hold foliage during distillations.4 Even today in remote parts of the world, many stills adopt primitive designs and utilise very basic techniques in production, sourcing steam from direct fires.Note de contenu : The fundamental principles of distillation En ligne : https://drive.google.com/file/d/1Gl44IsA-duHrwfoWezOCU2zWXn6HmiJ2/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18203
in PERSONAL CARE EUROPE > Vol. 6, N° 2 (04/2013) . - p. 33-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15016 - Périodique Bibliothèque principale Documentaires Disponible The distillation of essential oils - Part 2 / Murray Hunter in PERSONAL CARE EUROPE, Vol. 6, N° 3 (06/2013)
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Titre : The distillation of essential oils - Part 2 Type de document : texte imprimé Auteurs : Murray Hunter, Auteur Année de publication : 2013 Article en page(s) : p. 88-94 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Distillation
Huiles essentiellesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Part two of this three part series on distillation carries on from the basic principles laid out in part one to look at the stages of the general distillation process and oulines the various basic types of distillation. Note de contenu : - Steam and pressure
- Wilting crops before distillation
- Water distillation
- Water and steam distillation
- Steam distillation
- The condenser system
- The separator system
- Hydro-diffusion distillationEn ligne : https://drive.google.com/file/d/1F0Tyzp6X3Xtu-zPtGWkQD4AgdMcZuiio/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18782
in PERSONAL CARE EUROPE > Vol. 6, N° 3 (06/2013) . - p. 88-94[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15153 - Périodique Bibliothèque principale Documentaires Disponible Tradition et innovation en extraction végétale in PARFUMS COSMETIQUES ACTUALITES, N° 164 (04-05/2002)
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Titre : Tradition et innovation en extraction végétale Type de document : texte imprimé Année de publication : 2002 Article en page(s) : p. 137-140 Langues : Français (fre) Catégories : Extraction (chimie)
Extraits de plantes:Extraits (pharmacie)
Huiles essentiellesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Depuis plus de cinquante ans, CEP développe des procédés d'extraction spécifiques adaptés à chaque végétal, ou partie de végétal, pour fournir à l'industrie cosmétique des extraits authentiques et validés. Note de contenu : - Des procédés simples et traditionnels
- Des procédés spécifiques aux laits et aux crèmes
- Rigueur et ethnobotaniquePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15153
in PARFUMS COSMETIQUES ACTUALITES > N° 164 (04-05/2002) . - p. 137-140[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 000256 - Périodique Bibliothèque principale Documentaires Disponible Unsupervised machine learning methods to understand relaxation effect of fragrances through EEG technique / Chinmay Mhaskar in SOFW JOURNAL, Vol. 147, N° 9 (09/2021)
[article]
Titre : Unsupervised machine learning methods to understand relaxation effect of fragrances through EEG technique Type de document : texte imprimé Auteurs : Chinmay Mhaskar, Auteur ; Vaibhav Kaushik, Auteur ; Archana Arjula, Auteur Année de publication : 2021 Article en page(s) : p. 42-51 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aromathérapie
Huiles essentielles
Parfums
RelaxationIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Objective: The objective was :1) To validate relaxation effects of fragrances proposed in the previous work using Unsupervised Machine Learning methods (USL). 2) To compare and quantify the relaxation potential of fragrances by establishing a criterion (metric).
Methods : K-Means and Principal Component Analysis (PCA) were the employed USL methods. The data was a result of administering 4 essential oil fragrances (ALO (control), ECO, Lavender and AROMA) to 50 participants. PCA aided the characterisation of fragrances as function of 8 waves based on the relaxation induced.
Results : The result from the previous work i.e. aromatherapy induced higher relaxation and, Alpha waves were good indicators of relaxation, was validated by K-Means. Higher Alpha wave intensity was associated with fragrance administration. Principal waves for olfactory stimulation were identified as Alpha, Beta and Theta. PCA analysis showed AROMA and Lavender fragrances had higher relaxation potential compared to the other fragrances. Weighted PCA showed the difference in the degree of relaxation for the administered fragrances.
Conclusion : We concluded that Aromatherapy fragrance (a synergistic blend of relaxing essential oils) resulted in higher relaxed mental states. This was achieved by employing USL techniques as comparison and validation metrics for the previous study. Also, USL techniques were used to propose a methodology to understand and characterise EEG sensory data variability (subject-to-subject variability). The Relaxation Potential Metric successfully compared the degree of relaxation induced by olfactory stimuli. The significance of the proposed methodology is: 1) It can be used as tool to analyse brain wave data from sensory stimulus/stimuli for better comparison and characterisation and 2) It can be employed to engineer products which are more consumer-centric in nature.Note de contenu : - EEG and its significance for mental state
- Previous study and inspiration for present work
- Unsupervised learning methods : Clustering algorithms - K-means - Principal component analysis (PCA)
- MATERIALS AND METHODS : 1) Data pre-processing - 2) Validation of clustering method (single wave - Alpha)
- Table 1 : Table showing mental states characterized by brain wave signals and respective frequency
- Table 2 : Table showing the coefficients of variable for each of the PCs (pcincipal components)
- Table 3 : Table showing principal component score data for comparison of different experimental stimuli conditions
- Table 4 : Table showing principal components' characteristics in terms of brain wave intensity (high and /or low)
En ligne : https://drive.google.com/file/d/1ZLUqRKZge1iUHts1sHm1c0Fc1L7QyGFR/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36333
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Code-barres Cote Support Localisation Section Disponibilité 22966 - Périodique Bibliothèque principale Documentaires Disponible Using natural oils in fragrance : its role in clean beauty / Thomas Kerfoot in PERSONAL CARE EUROPE, Vol. 14, N° 2 (04/2020)
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Titre : Using natural oils in fragrance : its role in clean beauty Type de document : texte imprimé Auteurs : Thomas Kerfoot, Auteur Année de publication : 2020 Article en page(s) : p. 163-165 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Consommateurs -- Préférences
Huiles essentielles
Ingrédients cosmétiques
ParfumsIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Natural oils are our heritage and passion at O&3. So, for us, it is not unexpected to see the popularity of these natural ingredients in the personal care industry - but it can be surprising how versatile oils can be, particularly when it comes to fragrance.
Scents and fragrances have always been a key purchase driver for consumers when considering which personal care products to buy. From shampoos to soap bases, butters, lotions and creams, how brTransparency However, despite our love of fragrance, consumers are demanding a new level of transparency from brands and manufacturers. According to Mintel, in the UK, 36% of adults agree that the lack of ingredient information for fragrances is worrying. Consumer-led demand for ‘clean beauty’ products and an increased focus on sustainability has led to a continued drive for ingredient transparency within the beauty and personal care industry. Customers are becoming increasingly astute about ingredients and are often refusing to accept things at face value forcing brands to be more open and honest about their formulations.ands and formulators fragrance a product is a key differentiator.
The oils used within those fragrances play a key part in creating the distinguishing smells that so many brands are known for and ultimately drive consumers to purchase. Over half of Europeans (67%) agree that scent is the most important factor influencing a consumer when purchasing liquid soap products and, in the US, 47% of consumers choose shampoo or conditioner based on the fragrance alone.Note de contenu : - Transparency
- Essential oils
- Cold pressed oils
- Formulation considerations
- The future for fragranceEn ligne : https://drive.google.com/file/d/1WwFKDc7a2O_mDOPxaetIMBHx7HAiR2Ge/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33969
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Code-barres Cote Support Localisation Section Disponibilité 21621 - Périodique Bibliothèque principale Documentaires Disponible VMHD : extraction d'huile essentielle par micro-ondes / Philippe Mengal in PARFUMS COSMETIQUES AROMES, N° 114 (12/93)
PermalinkXV° journées des huiles essentielles / Françoise Basset in PARFUMS COSMETIQUES ACTUALITES, N° 131 (11/1996)
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