TAILIEUCHUNG - Preparation and enrichment of linoleic acid from soybean oil, using as natural raw material for synthesis of synergist to insecticides

In this study, linoleic acid is obtained by hydrolysis of soybean oil in ethanol/KOH, separation and enrichment using the urea-fatty acid complex formation method for the fractionation of fatty acids. The process involves the formation at 60 ◦C of a homogeneous solution of free fatty acid and urea in 95% ethanol, followed by cooling the resultant urea complex slurry to -5 ◦C and separation by filtration. | JOURNAL OF SCIENCE OF HNUE Chemical and Biological Sci. 2013 Vol. 58 No. 9 pp. 20-27 This paper is available online at http PREPARATION AND ENRICHMENT OF LINOLEIC ACID FROM SOYBEAN OIL USING AS NATURAL RAW MATERIAL FOR SYNTHESIS OF SYNERGIST TO INSECTICIDES Hoang Than Hoai Thu and Dao Van Hoang National Key Laboratory for Petrochemical and Refinery Technology Vietnam Institute of Industrial Chemistry Abstract. Linoleic acid is an unsaturated 18-carbon fatty acid with relatively high content in vegetable oils including soybean oil. Linoleic acid and its derivatives have interesting and valuable biological activities including a synergistic effect as an insecticide component. For example control of the rice brown plant hopper control with the use of the insecticide imidacloprid has been found to be enhanced when linoleic acid derivatives are added to the insecticide. In this study linoleic acid is obtained by hydrolysis of soybean oil in ethanol KOH separation and enrichment using the urea-fatty acid complex formation method for the fractionation of fatty acids. The process involves the formation at 60 C of a homogeneous solution of free fatty acid and urea in 95 ethanol followed by cooling the resultant urea complex slurry to -5 C and separation by filtration. The linoleic acid content obtained is about and can be used as a synergistic component when added to the insecticide imidacloprid. Keywords Linoleic acid soybean oil synthesis imidacloprid. 1. Introduction Natural or synthetic substances are said to be synergistic when the addition of the substance increases the lethality and effectiveness of a currently available insecticide and this is particularly useful when the problem of resistance has arisen. These substances that have such synergistic properties are by themselves considered to be nontoxic. In this respect adding a synergist to a pesticide is an effective way to reduce environmental pollution. In recent years natural-based .

• Giáo dục học
• Linoleic acid
• Soybean oil
• Including soybean oil
• Valuable biological activities
• The insecticide imidacloprid
• Natural based synergists
• vai trò sữa bò
• ACID LINOLEIC LIÊN HỢP
• nghiên cứu nông nghiệp
• báo cáo khoa học
• kỹ thuật chăn nuôi
• giống gia cầm
• chuồng trại gia súc
• giống vật nuôi
• Công nghệ Sinh học
• Đồng phân hóa linoleic acid
• Chủng Lactobacillus spp
• Vi khuẩn đường ruột
• Linoleic acid liên hợp
• High seed yield
• High oil
• High oleic
• High linoleic acid
• Linoleic acid type lines
• Adult formation
• Creatonotus gangis
• Linolenic acid
• Adult formation of Creatonotus gangis L
• Journal of Chemistry
• Achillea cappadocica
• Fatty acid
• β Carotene linoleic acid
• ABTS cation radical scavenging activity
• Minimum inhibition concentration (MIC)
• Tamarindus indica seed
• GC MS analysis
• Methanol crude extract
• Dinh dưỡng học
• chăn nuôi thú ý
• thảo mộc quanh ta
• cây dược liệu
• cây thuốc nam
• khoa học sinh học
• Acid béo chưa no
• sức khỏe dinh dưỡng
• Acid béo chưa no Omega
• Sức khỏe bền vững
• Hoạt chất sinh học
• Thực phẩm chức năng
• Dinh dưỡng cơ bản
• Vai trò thực phẩm chức năng
• Dinh dưỡng sức khỏe
• BMC Plant Biology
• Gossypium hirsutum
• Fatty acid composition
• Male sterile
• Oleic acid
• Fatty acid desaturase
• Expression analysis
• Subcellular localization
• Yeast expression
• Neocinnamomum caudatum
• Stearic acid
• Transcriptome sequencing
• Heterologous expression
• BMC Genomics
• Gene expression
• FAD gene family
• Walnut kernels contain
• tài liệu báo cáo nghiên cứu khoa học
• cách trình bày báo cáo
• kiến thức bệnh thú y
• báo cáo bệnh thú y
• các nghiên về bệnh thú ý
• trình bày báo cáo
• tài liệu báo cáo khoa học
• kiến thức bênh thú y
• nghiên cứu bệnh thú y
• Report medicine
• traditional medicine
• scientific reports
• tumor cells
• medical knowledge
• chemical reaction
• Astragalus species
• Antimicrobial activity
• Antioxidant activity
• A
• microcephalus Willd
• β–carotene linoleic acid system
• BMC Musculoskeletal Disorders
• Musculoskeletal disorders
• Chronic neck pain
• Chronic widespread pain
• N acylethanolamines
• Plant Biology
• Crop productivity
• Genomic data
• Carbon fixation
• Heracleum platytaenium
• Anticholinesterase activity
• β carotene linoleic acid assays
• Carbohydrate polymers
• Heat moisture treatment
• Amylose inclusion complexes
• Thermal transition
• Viscosity behavior