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ห้องสมุดกรมพัฒนาที่ดิน
1.3. Abstract༛
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Vetiveria zizanioides༛(L.)༛Nash,༛belong༛to༛family༛Poaceae,༛provide༛a༛variety༛of༛benefits༛protects༛
against༛soil༛erosion,༛thatched༛roof༛and༛herbal༛medicines༛It༛has༛been༛report༛against༛nematodes.༛
This༛research༛aims༛to༛study༛the༛chemical༛composition༛of༛V. zizanioides༛and༛develop༛the༛prototype༛
products༛for༛nematocide.༛Five༛sources of V. zizanioides༛(L.)༛Nash༛ver.༛Songkhla༛3༛were༛collected༛
from༛Kalasin,༛Khon༛Kaen,༛Maha༛Sarakham,༛Sakon༛Nakhon༛and༛Surin.༛They༛provided༛a༛total༛phenolic༛
contents༛(TPC)༛53.27-98.47༛ug/mg༛and༛total༛polysaccharides༛contents༛(TSC)༛163.25-329.58༛ug/mg.༛
The༛spray༛dry༛of༛the༛vetiver༛water༛extract༛(VzWE)༛contained༛TPC༛27.31༛ug/mg༛and༛TSC༛203.66༛
ug/mg.༛From༛chemical༛fingerprints༛by༛high༛performance༛liquide༛chromatography༛(HPLC)༛and༛Thin༛
Layer༛Chromatography༛(TLC),༛p-coumaric༛acid༛was༛found༛in༛all༛sample༛of༛VzWE.༛The༛qualitative༛of༛
p-coumaric༛acid༛was༛investigated༛by༛using༛HPLC.༛P-Coumaric༛acid༛was༛found༛in༛5༛sample༛143.78-
252.98༛ug/g༛and༛spray༛dry༛of༛VzWE༛was༛1.153༛mg/g༛
The༛foam-mat༛formulation༛of༛VzWE༛composed༛1%༛HPMC༛and༛0.5%༛Tween80༛as༛a༛foaming༛agent,༛
and༛Maltodextrin༛DE10༛as༛a༛stabilizer.༛This༛formulation༛can༛produce༛foams༛with༛good༛properties.༛
The༛physical༛properties༛were༛investigated༛the༛appearance༛and༛rheology༛properties༛evaluated༛from༛
angle༛of༛repose,༛bulk༛density,༛tapped༛density,༛compressibility༛index༛and༛hausner༛ratio.༛
A༛comparative༛study༛of༛foam-mat༛and༛spray༛dry༛products༛showed༛that༛the༛products༛from༛foam-
mat༛is༛easy༛soluble,༛a༛good༛physical༛characteristics༛and༛stability༛than༛spray༛dry༛product.༛But༛the༛
foam-mat༛products༛can༛add༛only༛2%༛of༛VzWE,༛making༛it༛20༛times༛less༛than༛spray༛dry༛product.༛
From༛fourier༛transform༛infrared༛spectrophotometer༛(FTIR),༛both༛production༛technique༛did༛not༛alter༛
the༛chemical༛structure༛of༛the༛VzWE.༛The༛particles༛of༛the༛product༛were༛studied༛with༛the༛scanning༛
electron༛microscope༛(SEM).༛༛The༛particles༛of༛both༛products༛presented༛without༛a༛certain༛pattern.༛
The༛skin༛of༛particles༛is༛rough,༛especially༛products༛with༛less༛solubility.༛༛
The༛study༛of༛compatability༛of༛packaging,༛aluminum༛and༛plastic,༛and༛product,༛it༛was༛found༛that༛
aluminum༛packaging༛can༛improve༛the༛stability༛of༛VzWE༛products༛better༛than༛plastics.༛
VzWE༛can༛be༛formulated༛to༛foam-mat༛form༛and༛spray༛dry༛form༛for༛againt༛nematodes.༛P-coumaric༛
or༛phenolic༛substances༛can༛be༛used༛as༛a༛chemical༛marker༛of༛the༛product.༛༛
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Keyword༛Vetiveria zizanioides,༛p-coumaric༛acid,༛Phenolic༛acid,༛Foam-Mat,༛Spray༛dry༛༛༛༛
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