GLC of Supercritical Fluid Extracts of Essential Oils from the Medicinal Herbs, Feverfew, Tansy, and German Chamomile

1994 ◽  
Vol 32 (7) ◽  
pp. 265-269 ◽  
Author(s):  
R. M. Smith ◽  
M. D. Burford
Keyword(s):  
Essential Oils ◽  
Supercritical Fluid ◽  
Medicinal Herbs

scholarly journals Lactococcosis a Re-Emerging Disease in Aquaculture: Disease Significant and Phytotherapy

2021 ◽  
Vol 8 (9) ◽  
pp. 181
Author(s):  
Mehdi Soltani ◽  
Bernardo Baldisserotto ◽  
Seyed Pezhman Hosseini Shekarabi ◽  
Shafigh Shafiei ◽  
Masoumeh Bashiri
Keyword(s):  
Antibacterial Activity ◽  
Essential Oils ◽  
Medicinal Herbs ◽  
In Vitro Assays ◽  
Bacterial Disease ◽  
Bacterial Strains ◽  
Immune Parameters ◽  
Aquaculture Industry

Lactococcosis, particularly that caused by Lactococcus garvieae, is a major re-emerging bacterial disease seriously affecting the sustainability of aquaculture industry. Medicinal herbs and plants do not have very much in vitro antagonism and in vivo disease resistance towards lactococcosis agents in aquaculture. Most in vitro studies with herbal extractives were performed against L. garvieae with no strong antibacterial activity, but essential oils, especially those that contain thymol or carvacrol, are more effective. The differences exhibited by the bacteriostatic and bactericidal functions for a specific extractive in different studies could be due to different bacterial strains or parts of chemotypes of the same plant. Despite essential oils being shown to have the best anti-L. garvieae activity in in vitro assays, the in vivo bioassays required further study. The extracts tested under in vivo conditions presented moderate efficacy, causing a decrease in mortality in infected animals, probably because they improved immune parameters before challenging tests. This review addressed the efficacy of medicinal herbs to lactococcosis and discussed the presented gaps.

scholarly journals Determination of essential oil content in caraway (Carum carvi L.) species by means of supercritical fluid extraction

2011 ◽  
Vol 49 (No. 6) ◽  
pp. 277-282 ◽  
Author(s):  
J. Sedláková ◽  
B. Kocourková ◽  
L. Lojková ◽  
V. Kubáň
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Small Samples ◽  
Fluid Extraction ◽  
Carum Carvi ◽  
Main Portion

Dependently on planting conditions caraway fruits contain 1–9% of essential oils consisting of about 30 compounds. Carvone and limonene account for the main portion, about 95%. To evaluate the quality of various registered caraway (Carum carvi L.) cultivars (Kepron, Prochan and Rekord) planted during 1998–2000, regarding the effect of sample grinding and preparation, plant treatment and time of harvest, the amounts of essential oil and the carvone/limonene ratio were determined. Both whole and ground caraway seeds were extracted. As obvious from the results, SFE is not suitable for the determination of essential oils in whole seeds since the results are lower in comparison with those of ground caraway. The way of grinding was also examined. Of the three mills used, a splintery mill VIPO seemed to be the most suitable. Further, the amount of essential oil was studied in caraway gathered at the beginning of maturation (sample A) and at full ripeness (sample B) of caraway seeds. It was found that the samples gathered at full ripeness (samples B) had more essential oil. It was also concluded that the use of the regulator Roundup Bioaktiv during caraway maturation to unite the ripening of achenes in the main umbel and the first-order umbels, and the use of fungicides (Alert S and Prelude 10) affected positively the amount of essential oil in caraway. Possibilities of SFE application for the essential oil determination in small samples gathered during breeding were investigated. The results were used as a one of the criteria during breeding. Classical way of the essential oil determination does not allow this option. An alternative method for the isolation and determination of essential oils – supercritical fluid extraction (SFE) – was investigated in this study.

scholarly journals Effect of Botanicals on Infestation Intensity of Aceria Guererronis Keifer in Coconut

2010 ◽  
Vol 50 (2) ◽  
pp. 193-196
Author(s):  
Susmita Patnaik ◽  
Kadambini Rout ◽  
Sasmita Pal ◽  
Partha Mukherjee ◽  
Prasanna Panda ◽  
...  
Keyword(s):  
Essential Oils ◽  
Medicinal Herbs ◽  
Aromatic Plants ◽  
Medicinal And Aromatic Plants ◽  
Eriophyid Mite ◽  
Damage Reduction ◽  
Infestation Intensity ◽  
Botanical Extracts ◽  
New Perspective ◽  
Chemical Pesticides

Effect of Botanicals on Infestation Intensity of Aceria Guererronis Keifer in CoconutThe withdrawal of chemical pesticides opens up a new perspective to control pests through botanical extracts. The essential oils derived from various medicinal and aromatic plants proved to have antifungal, antibacterial and insecticidal properties. The present study is directed towards management of a dreaded pest of coconut i.e. eriophyid mite through exploitation of those properties of the plants. The efficacy of a botanical biocide formulated by using seven different aromatic and medicinal herbs against the infestation intensity of eriophyid mite was tested in the experiment at five different coconut farms in different coconut growing states of India. Four application of the formulated product resulted up to 72.17% damage reduction.

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