برجاء المساعدة عن موضوع بحث quality assurance essential Oil برجاء وبارك الله لمن خيرا لمن افادنى
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الموضوع: برجاء المساعدة عن موضوع بحث quality assurance essential Oil برجاء وبارك الله لمن خيرا لمن افادنى

  1. #1
    تاريخ التسجيل
    May 2009
    الدولة
    مصر
    المهنة
    مهندس زراعى
    الجنس
    ذكر
    العمر
    40
    المشاركات
    26
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    برجاء المساعدة عن موضوع بحث quality assurance essential Oil برجاء وبارك الله لمن خيرا لمن افادنى


  2.    روابط المنتدى



  3. #2
    تاريخ التسجيل
    Mar 2007
    الدولة
    كانت سورية قبل أن يدمرها الاسد واعوانه من الصفويين والمجوس
    المهنة
    باحث
    الجنس
    ذكر
    المشاركات
    790
    أعجبتني مشاركتك (-)
    103

    السلام عليكم ورحمة الله

    أخي الكريم في المرفقات ان شاء الله تجد ما ينفعك

    Use of surface response methodology for the optimization of the concentration of the sweet orange essential oil of Algeria by wiped film evaporator

    Determination of growing location of marjoram (Origanum majorana L.) samples by comparison of essential oil profiles

    Ultra-fast essential oil characterization by capillary GC on a 50 m ID column

    اضافة لأحدث 200 بحث حول essential oil

    الملفات المرفقة الملفات المرفقة
    عَنْ أُسَامَةَ بْنِ زَيْدٍ رَضِيَ الله عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: "مَنْ صُنِعَ إِلَيْهِ مَعْرُوفٌ فَقَالَ لِفَاعِلِهِ: جَزَاكَ اللَّهُ خَيْرًا فَقَدْ أَبْلَغَ فِي الثَّنَاءِ". أخرجه الترمذي

  4. #3
    تاريخ التسجيل
    May 2009
    الدولة
    مصر
    المهنة
    مهندس زراعى
    الجنس
    ذكر
    العمر
    40
    المشاركات
    26
    أعجبتني مشاركتك (-)
    0

    شكر خاص للمهندس العزيز ابو مالك بارك اله فيك وجزاك عنى كل خير


    ولكن للأسف محتاج توكيد جودة الزيوت العطرية Quality assurance essential oil وهذه المجموعة لا تحتوى عليها

    ارجو لو يوجد مزيد من المساعدة للأهمية ............. وبارك الله فيك


  5. #4
    تاريخ التسجيل
    Mar 2007
    الدولة
    كانت سورية قبل أن يدمرها الاسد واعوانه من الصفويين والمجوس
    المهنة
    باحث
    الجنس
    ذكر
    المشاركات
    790
    أعجبتني مشاركتك (-)
    103

    السلام عليكم

    آمل تجد ما ينفعك ضمن هذه الملخصات

    Bouaïcha, A.a , Fofana, I.a , Farzaneh, M.b , Setayeshmehr, A.c , Borsi, H.c , Gockenbach, E.c , Beroual, A.d , Aka, N.T.d
    Dielectric spectroscopy techniques as quality control tool: A feasibility study - [Feature article]
    (2009) IEEE Electrical Insulation Magazine, 25 (1), pp. 6-14. Cited 3 times.


    a Insulating Liquids and Mixed Dielectrics for Electrotechnology (ISOLIME), Université du Québec à Chicoutimi, Chicoutimi, QC, Canada
    b International Research Centre on Atmospheric Icing and Power Network Engineering (CenGivre), Université du Québec à Chicoutimi, Chicoutimi, QC, Canada
    c Institute of Electric Power Systems, High Voltage Engineering Section (Schering-Institute), Leibniz Universität Hannover, Hanover, Germany
    d Ecole Centrale de Lyon, Laboratoire Ampère, Lyon, France


    Abstract
    Bushings are essential elements of many power equipments, including circuit breakers, capacitors, reactors, etc. Both high- and low-voltage windings are insulated from the core and from each other, and leads are brought out through insulating bushings. The two basic bushing designs are non-graded and capacitance-graded. The former is the simplest and the oldest. Capacitance graded bushings are available in four technologies: Resin Bounded paper (RB), Oil-Impregnated Paper (OIP), Resin Impregnated Paper (RIP) and Epoxy Resin Impregnated Paper (ERIP). OIP bushing, developed in the 1920s, is one of the most common types [1]. About 80% of all bushings in use today are of the OIP type. © 2009 IEEE.


    Author Keywords
    Dielectric spectroscopy; Frequency domain; Oil-Impregnated Paper (OIP) condenser bushings; Time domain


    Document Type: Article
    Source: Scopus





    Bouras, H.a , Doumaz, N.a , Bellabarba, M.b , Caceres, E.b , Mananga, S.b , Le Roy-Delage, S.b , Gamal Abd-El Aziz, M.b , Rebbou Benberber, M.b
    Responsive cementing material prevents annular leaks in gas wells
    (2008) Proceedings - SPE Annual Technical Conference and Exhibition, 7, pp. 4816-4825.


    a Sonatrach
    b Schlumberger


    Abstract
    In a traditionally cemented well, the integrity of the cement sheath surrounding the casing, and the bond between the cement and the formation or casing are essential components of hydraulic isolation. A well-cemented casing is designed to maintain hydraulic isolation throughout the productive life of the well and after abandonment. With advances in cementing technology, slurries have been designed that result in cement sheaths that can resist planned wellbore stresses without failure. Once the cement has set, however, the fixed set-cement properties do not address stresses that have not been planned for, and that may ultimately result in cement sheath failure. This study considers the case of well construction as part of a new gas field exploration in Algeria. Wells drilled in this area have been prone to developing annular gas leaks in the weeks and months following cementing operations. To prevent the loss of isolation and reestablish hydraulic integrity in the event of cement failure, a new cement-based sealant was incorporated into the well construction plan. This reactive material responds to hydrocarbon leaks that occur because of fissures in the cement, debonding of cement from the formation or the development of a microannulus between the cement and the casing. These leaks trigger a self-healing response, sealing the leak path, and restoring well integrity. Using this sealant material has reduced the incidence and likelihood of leaking wells in an area where such problems are common, and eliminated the potential time and cost associated with leak remediation. Copyright 2008, Society of Petroleum Engineers.



    Document Type: Conference Paper
    Source: Scopus





    Wu, Y.-W.a , Sun, S.-Q.a , Zhou, Q.a , Tao, J.-X.a , Noda, I.b
    Volatility-dependent 2D IR correlation analysis of traditional Chinese medicine 'Red Flower Oil' preparation from different manufacturers
    (2008) Journal of Molecular Structure, 882 (1-3), pp. 107-115. Cited 3 times.


    a Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
    b Corporate R and D, The Procter and Gamble Company, West Chester, OH 45069, United States


    Abstract
    As a traditional Chinese medicine (TCM), 'Red Flower Oil' preparation is widely used as a household remedy in China and Southeast Asia. Usually, the preparation is a mixture of several plant essential oils with different volatile features, such as wintergreen oil, turpentine oil and clove oil. The proportions of these plant essential oils in 'Red Flower Oil' vary from different manufacturers. Thus, it is important to develop a simple and rapid evaluation method for quality assurance of the preparations. Fourier transform infrared (FT-IR) was applied and two-dimensional correlation infrared spectroscopy (2D IR) based on the volatile characteristic of samples was used to enhance the resolution of FT-IR spectra. 2D IR technique could, not only easily provide the composition and their volatile sequences in 'Red flower Oil' preparations, but also rapidly discriminate the subtle differences in products from different manufacturers. Therefore, FT-IR combined with volatility-dependent 2D IR correlation analysis provides a very fast and effective method for the quality control of essential oil mixtures in TCM. © 2007 Elsevier B.V. All rights reserved.


    Author Keywords
    'Red Flower Oil' preparation; Essential oils; Fourier transform infrared spectroscopy; Two-dimensional correlation infrared spectroscopy; Volatility


    Document Type: Article
    Source: Scopus





    Zeboudj, S., Belhanèche-Bensemra, N., Belabbès, R.
    Use of surface response methodology for the optimization of the concentration of the sweet orange essential oil of Algeria by wiped film evaporator
    (2005) Journal of Food Engineering, 67 (4), pp. 507-512. Cited 5 times.


    Ecole Nationale Polytechnique, 1 avenue Hassen Badi, El-Harrach, Alger, Algeria


    Abstract
    The evaluation of the optimum conditions for concentration of the sweet orange essential oil by wiped film evaporator required a planning of experiments. The factors of the selected centered composite plan are the rate of feed, the temperature of the heated fluid and the stirring velocity. The quadratic model obtained required complementary work by simplex method to determine the optimum. The analysis by gas chromatography of the samples revealed a 18.2 times concentrated oxygenated compound in the residue. © 2004 Elsevier Ltd. All rights reserved.


    Author Keywords
    Concentration; Optimization; Surface response methodology; Sweet orange essential oil; Wiped film evaporator


    Document Type: Article
    Source: Scopus





    Novak, J.a , Pank, F.b , Langbehn, J.b , Blüthner, W.-D.c , Vender, C.d , Van Niekerk, L.e , Junghanns, W.f , Franz, C.a
    Determination of growing location of marjoram (Origanum majorana L.) samples by comparison of essential oil profiles
    (2004) Flavour and Fragrance Journal, 19 (3), pp. 263-267.


    a Institute for Applied Botany, University of Veterinary Medicine, Veterinaerplatz 1, A-1210 Vienna, Austria
    b Institute of Horticultural Crops, Fed. Ctr. Breeding Res. Cultivated, Neuer Weg 22/23, D-06484 Quedlinburg, Germany
    c N.L. Chrestensen Erfurter Samen, Postfach 854, D-99092 Erfurt, Germany
    d ISAFA, Piazza Nicolini 6, I-3805 Villazzano di Trento, Italy
    e Darbonne 6 Boulevard Joffre, F-91490 Milly-La-Forêt, France
    f MAWEA, Majoranweg 21, D-06449 Aschersleben, Germany


    Abstract
    A canonical discriminant function analysis (CDA) was applied to essential oil compounds profile to determine the growing location of marjoram samples. 12/21 essential oil compounds were integrated into two discriminant functions as the best predictors for geographical differences. Stepwise integration allowed the determination of the essential oil compounds mainly responsible for the geographical variation, viz. myrcene, terpinene-4-ol, γ-terpinene and p-cymene. The two discriminant functions themselves showed a strong association between the locations and the predictors. The two functions allowed a correct classification of 95% of samples (cross-validated). The high positive classification rate demonstrates the CDA's ability as a quality assurance tool enabling authenticity control. Copyright © 2004 John Wiley & Sons, Ltd.


    Author Keywords
    Canonical discriminant function analysis; Essential oil profiles; Growing location; Lamiaceae; Marjoram; Origanum majorana


    Document Type: Article
    Source: Scopus





    Scott, G.a d , Springfield, E.P.b , Coldrey, N.c
    A pharmacognostical study of 26 South African plant species used as traditional medicines
    (2004) Pharmaceutical Biology, 42 (3), pp. 186-213. Cited 11 times.


    a Department of Botany, University of Cape Town, Rondebosch, Western Cape, South Africa
    b S. African Traditional Med. Res. G., School of Pharmacy, University of the Western Cape, Bellville, South Africa
    c Department of Microbiology, University of the Western Cape, Bellville, South Africa
    d Department of Botany, University of Cape Town, Private Bag, Rondebosch, Western Cape 7700, South Africa


    Abstract
    An estimated 70% of all South Africans use traditional medicines derived from plant species indigenous to the region. In order to formalize the position of these medicines within the state health care system, a necessary first step is the establishment of standards of quality, safety, and efficacy. With this objective in mind, pharmaceutical monographs for 60 plant species used as traditional medicines in South Africa were drawn up according to WHO guidelines. The results of some of this work are reported here, focusing in particular on 26 species belonging to Asteraceae, Geraniaceae, and Lamiaceae, families well represented in indigenous traditional medical practice. Quality standards for the identification of these species, established using high-performance liquid chromatography (HPLC), thin-layer chromatography (TLC), and traditional microscopy, are given. The results of investigations, using the disk assay method, of their efficacy as antimicrobial agents are reported. Secondary chemical profiles, drawn up using standard techniques in pharmacognosy, are shown and discussed with reference to the known bioactivity of each chemical class.


    Author Keywords
    Asteraceae; Geraniaceae; Lamiaceae; Quality assurance; South Africa; Traditional medicines; Validation


    Document Type: Article
    Source: Scopus





    Mackereth, P.
    The award winning 'completing the circle' complementary therapy service initiative at Christie NHS hospital Manchester
    (2004) Complementary Therapies in Nursing and Midwifery, 10 (2), pp. 127-132. Cited 2 times.


    Complementary Therapies, Christie Hospital, Salford University, Salford, United Kingdom


    Abstract
    The complementary therapy team at the Christie Hospital has won a highly prestigious national Prince of Wales award. The award is for 'Good Practice in Integrated Healthcare' and applauds the hospital for including complementary therapies as part of patient care at the Christie. His Royal Highness, The Prince of Wales presented The Prince of Wales Foundation for Integrated Healthcare Award to Christie staff at Lambeth Hospital in London on the11th December 2003 (see picture). The Gateway Clinic at Lambeth Hospital jointly won the award (reference here to a future publication). The Christie Hospital started providing complementary therapies 7 years ago, and the service has greatly expanded in the last 3 years. Patients can choose a complementary therapy treatment in addition to their medical treatment. A 15-strong complementary therapy team provides back and head massages, reflexology and other treatments. The paper reports on the various aspects of the project, identifying who leads each part and how it is being developed and evaluated. © 2004 Elsevier Ltd. All rights reserved.



    Document Type: Article
    Source: Scopus





    Nayak, S.a , Debata, B.K.a , Srivastava, V.K.b , Sangwan, N.S.c
    Evaluation of agronomically useful somaclonal variants in Jamrosa (a hybrid Cymbopogon) and detection of genetic changes through RAPD
    (2003) Plant Science, 164 (6), pp. 1029-1035. Cited 9 times.


    a Arom. and Medicinal Plants Division, Regional Research Laboratory, Bhubaneswar 751 013, Orissa, India
    b Natl. Bur. of Plant Genetic Rsrc., Pusa Campus, New Delhi 110 012, India
    c Genetic Resources and Biotechnology, Ctrl. Inst. of Med./Aromatic Plants, Lucknow 226 015, UP, India


    Abstract
    Among 100 somaclones of jamrosa screened, a wide range of variation was recorded for several traits, including plant height, tiller number, herb weight, oil content and total oil yield. Qualitative analysis of essential oil was carried out for 45 somaclones which performed better or equal to the donor parent. Eleven somaclones selected on the basis of total oil yield and quality were further evaluated in replicated trial. Five superior somaclones showing a total oil yield twofold than the donor and possessing quality oil containing a high geraniol content > 84% were selected for further analysis in the field for six clonal propagations. Out of the five superior somaclones two improved somaclones which showed relative stability in oil yield and quality were subjected to RAPD analysis. Changes in RAPD banding pattern in the improved somaclone as compared to donor parent revealed occurrence of gross genetic changes. © 2003 Elsevier Science Ireland Ltd. All rights reserved.


    Author Keywords
    Genetic improvement; Hybrid Cymbopogon; RAPD; Somaclonal variation


    Document Type: Article
    Source: Scopus





    Johns, C.
    A day in the life
    (2003) Complementary Therapies in Nursing and Midwifery, 9 (2), pp. 69-73.


    Advanced Nursing Practice, University of Luton, 4 High Street, Riseley, Bedfordshire MK44 1DU, United Kingdom


    Abstract
    As a reflective practitioner I write a journal, reflecting on significant experiences through the day. In this paper, I present a day in my life as a part-time nurse and complementary therapist at the hospice where I work. In particular, I focus my reflection on my ability and value of dwelling with patients as a clearing to enhance my therapeutic work. © 2003 Published by Elsevier Science Ltd.


    Author Keywords
    Aromatherapy; Dwelling with; Palliative care; Reflective practice; Reflexology


    Document Type: Article
    Source: Scopus





    Toker, G.a , Aslan, M.a , Yeşilada, E.a c , Memişolu, M.a , Ito, S.b
    Comparative evaluation of the flavonoid content in officinal Tiliae flos and Turkish lime species for quality assessment
    (2001) Journal of Pharmaceutical and Biomedical Analysis, 26 (1), pp. 111-121. Cited 23 times.


    a Department of Pharmacognosy, Eczaclk Fakültesi, Gazi Üniversitesi, Hipodrom, 06330 Ankara, Turkey
    b Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
    c Tel.: +90-312-2224255


    Abstract
    Lime flowers are used for various medicinal purposes in phytotherapy. Flavonoids, volatile oil and mucilage components are known as the active ingredients. In European Pharmacopoeia (EP), a simple thin-layer chromatographic (TLC) technique, which based on the analysis of the flavonoid composition was defined for the qualitative analysis of the drug. In this study, flavonoid composition in the flowers, bracts and leaves of the officinal species, Tilia platyphyllos were studied using a reversed-phase high performance liquid chromatographic (HPLC) technique, in order to develop a rapid, reliable and accurate method for quantitative analysis. The results were further compared with in those parts of two common species growing in Turkey, Tilia rubra and Tilia argentea. Results of the present study revealed that flavonoid composition of each lime species possesses a specific fingerprint HPLC chromatogram depending upon the parts used and evaluation of the data might be helpful in the quality assurance as well as determination of adulteration of the crude drug. © 2001 Elsevier Science B.V.


    Author Keywords
    Lime; Reversed phase HPLC; Tilia species; Tiliae flos; Validation