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P18 GREEN NANOEMULSION FORMULATION FORAZADIRACHTIN CONTAINING BIOPESTICIDE INCONTROLLING FRUIT FLYR.Z. Goh, C.J. Lim, M. Basri*Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPMSerdang, Selangor, MalaysiaCorresponding author: mahiran@science.upm.edu.myFormulations of new nanoemulsion systems containing azadirachtin were developed.Pseudoternary phase diagrams were constructed with variable emulsion compositionsconsisting of esterified vegetable oil(FAMEs), mixed nonionic surfactants(MAPGsand Tween 85) and water. Isotropic state which is the monophasic and transparentliquid were obtained with higher FAMEs solubilization at the mixed surfactant ratios(MSRs) (MAPGs: Tween 85) of 2:8, 3:7, 5:5, 6:4 and 7:3. Samples were chosen fromthe isotropic phase and were incorporated with azadirachtin for pre-formulationformation. Selected pre-formulations were physically stable after being mixed,homogenized, centrifuged and stored at room temperature for three months and 54 o Cfor two weeks. The pre-formulations were developed into nanoemulsion formulationusing two emulsification methods ,the low energy stirring at 300rpm for 1 h andthehighshear mixing at 1500, 3000 and 4500rpm for 5 min.Nanoemulsion formulations were formed in the particle size ranges of 193.3 – 361.7nm and 138.9 – 291.6 nm for low-energy and high-energyemulsification methods,respectively. The morphology study from TEM showed that the nanoemulsionformulations were in the form of dispersed nanoparticles. The zeta potential datashowed that the nanoemulsion formulations were chemically stable (surpassedthreshold value of – 30.0 mV) in the range of –30.3 to –60.0 mV. The surface tensionvalues of the nanoemulsion formulations were promoted in the range of 31.0–33.0mN/m. In the biological activity study, the nanoemulsion formulations were dilutedand were compared to commercial formulation Neemax®. The formulation treatmentswere conducted on fruitfly bioassay over48 h. The mean mortality rates of thenanoemulsion formulations LE-NF1, LE-NF4, HS-NF1 and HS-NF4 were 40%,100%, 100% and 83.33% respectively, as compared to commercial Neemix® at63.33%.The environmentally friendly formulated products using green-basedchemicals are the latest forefront strategy in green nanotechnology for intervention inbiopesticide formulation.33 |16 th Industrial Chemistry Seminar: Chemistry- A Passport to a Brighter Future
P19CHEMO-ENZYMATIC EPOXIDATION OF ALKENESE.Abdul Malek*, H.N. Mizan, M. ArumugamDepartment of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPMSerdang, Selangor, MalaysiaCorresponding author: emilia@upm.edu.myIn this study, chemo-enzymatic epoxidation of alkenes were carried out by usingimmobilized Candida antartica lipase B (Novozym 435) as a catalyst and chloroformas reaction media. Highest conversion was achieved by using phenylacetic acid asoxygen carrier and hydrogen peroxide (H 2 O 2 ) used to initiate the oxidation ofphenylacetic acid to form proxy acid which was then reacted with alkene to giveepoxide. The alkene substrates used in this study were 1-nonene, cyclohexene and 1-methylcyclohexene. Alkenes were converted into epoxides efficiently with the rangebetween (75-99%) under optimal synthesis conditions including temperature (35°C),H 2 O 2 concentration (30%) in a single step addition and stirring rate 250 rpm. All thereactions were carried out within 12 h using conventional water bath shaker. Extendedstudy about recyclability of phenylacetic acid and recyclability of enzyme on chemoenzymaticepoxidation of alkene were studied. Residual activity of the enzyme hasbeen determined.34 |16 th Industrial Chemistry Seminar: Chemistry- A Passport to a Brighter Future
Page 2 and 3: 16 th INDUSTRIAL CHEMISTRY SEMINAR
Page 4 and 5: Message from the Dean,Faculty of Sc
Page 7 and 8: Organizing CommitteePatronAdvisorsC
Page 9 and 10: 8.00 am Registration8.30 am Opening
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Page 18 and 19: P02DERIVATIVES OF VANILLINN.A. Rasi
Page 20 and 21: P04 SYNTHESIS AND ELECTRICAL CHARAC
Page 22 and 23: P06 PRELIMINARY STUDY ON NEW AMINO
Page 24 and 25: P08 ELECTRODEPOSITION OF POLYPYRROL
Page 26 and 27: P10 CONVERSION OF PALM OIL TO BIODI
Page 28 and 29: P12 ELECTROCHEMICAL REDUCTION OF LE
Page 30 and 31: P14 MICROWAVE SYNTHESIS OF MAGNETIC
Page 32 and 33: P16SYNTHESIS OF CINNAMIC ACID AND I
Page 36 and 37: P20METAL COMPLEXES OF NATURALLY OCC
Page 38 and 39: P22DEEP EUTECTIC SOLVENT AS MEDIA F
Page 40 and 41: P24 MOLECULAR DYNAMICS SIMULATION O
Page 42 and 43: P26 THE SYNTHESIS AND EFFECTS OF Ph
Page 44 and 45: P28CHEMICAL CONSTITUENTS OF Artocar
Page 46 and 47: P30 DESIGN AND OPTIMISATION OF NANO
Page 48 and 49: P32CHEMICAL CONSTITUENTS OFArtocarp
Page 50 and 51: P34THE EFFECT OF MECHANOCHEMICAL TR
Page 52 and 53: P36PEDOT FORMATION IN AQUEOUS SOLUT
Page 54 and 55: P38 DESIGN, SYNTHESIS AND ACTIVITY
Page 56 and 57: P40SECONDARY METABOLITES FROM Calop
Page 58 and 59: P42 PREPARATION, CHARACTERISATION A
Page 60 and 61: P44 FABRICATION AND CHARACTERIZATIO
Page 62 and 63: P46 ENZYMATIC ESTERIFICATION OF VAN
Page 64 and 65: P48 OXIDATION OF BENZYL ALCOHOL TOB
Page 66 and 67: P50PRELIMINARY STUDIES OF DEEP EUTE
Page 68 and 69: P52 SYNTHESIS AND CHARACTERISATION
Page 70 and 71: P54PREPARATION AND CHARACTERISATION
Page 72 and 73: P56 COARSE-GRAINED MOLECULAR DYNAMI
Page 74 and 75: P58 SYNTHESIS AND CHARACTERISATION
Page 76 and 77: P60 STRUCTURE AND PROPERTIES OF CON
Page 78 and 79: SKI XVI Committee Photo77 |16 th In

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