As part of ongoing research on the chemical composition and the antimicrobial properties of Burkinabe plants essential oils alone and in combination, essential oils (EOs) from leaves of Cymbopogon citratus and Cymbopogon giganteus from Burkina Faso were analyzed by GC-FID and GC-MS. Five constituents, which accounted for 96.3% of the oil, were identified in the EO of C. citratus. Geranial (48.1...

The present study aims to investigate the larvicidal activity of essential oils rhizomes Zingiber officinalis, leaves Tithonia diversifolia and Bidens pilosa on mature immature larvae Anopheles gambiae s.l. chemical composition was determined by Gas Chromatography (GC) Mass Spectrometry (GC/MS) coupling. activities against An. monitored in laboratory using world health organisation protocol. Ch...

Background and objectives: Dracocephalum kotschyi is a plant which belongs to the Lamiaceae family and exists mostly in south-west Asian countries, including Iran. This plant is used as antispasmodic, analgesic and anti-inflammatory to treat rheumatoid diseases. Methods: In order to investigate the impact of the harvesting time changes on the quantity and quality of monoand sesquiterpenoid comp...

SUMMARY The purpose of this study was to establish limits of normal for P wave measurements, and to propose criteria for routine electrocardiographic readings and for multivariate analysis to recognize left atrial overload (LAO) and right atrial overload (RAO) in the orthogonal electrocar-diogram (ECG). Frank ECG's were obtained from 2464 subjects, including 580 normals, 164 patients with mitra...

Chemical composition of the essential oils (EO) Pelargonium graveolens, Leptospermum petersonii and Cymbopogon martinii var. motia, absolute Rosa centifolia their bioactivity were examined. Major compounds in P. graveolens EO monoterpene alcohols citronellol, geraniol linalool; L. aldehydes geranial, neral citronellal; C. martiniii motia alcohol ester geranyl acetate, while R. aromatic 2-phenyl...

Thymol is present in the essential oils from herbs and spices, such as thyme. It is produced by these plant species as a chemical defense against phytopathogenic microorganisms. Therefore, this compound has attracted great attention in food industry, i.e., it has been used as a natural preservative in foods such as cheese to prevent fungal growth. Previous studies concerning the biotransformati...

inh dầu gừng là một trong những tinh quý do có công dụng chữa bệnh buồn nôn, chống say tàu xe, kháng oxi hóa, khuẩn và viêm. Trong nghiên cứu này, thành phần hóa học từ căn hành Zingiber officinale Roscoe trồng tại Phú Yên Bình Dương lần đầu tiên được bố. Các thông số chưng cất lôi cuốn hơi nước tối ưu bao gồm thời gian ly trích (06 giờ) tỉ lệ nguyên liệu: (1:3 g/ml). Thành phân tích bằng phươn...

1. Abstract 2. Introduction 3. Principle and strategies for microfluidic cell sorting 3.1. Active multi-channel switch 3.2. Field flow fractionation 3.3. Local nonuniform field flow fractionation 3.4. Differential immobilization 3.5. Direct manipulation 4. Sorting mechanisms 4.1. Electric mechanism 4.2. Optical mechanism 4.3. Magnetic mechanism 4.4. Hydrodynamic mechanism 4.5. Acoustic mechanis...