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Title: Insecticide/ Pesticide
Issue Date: Oct-2005
Publisher: CSIR
Abstract: The scientists at Mexico isolated allyl, benzyl, 2-phenylethyl and phenyl isothiocyanates in a ratio of 1:3.5:5.3:9.6, respectively, in cabbage leaves through solid phase microextraction and gas chromatography–mass spectrometry. The same proportion was used to prepare an isothiocyanate mixture from reagent grade isothiocyanates (MCIT) to test the effect on Alternaria alternata growth in vitro. Application of 0.28 and 0.56 mg/ml of MITC, with or without packing in low density polyethylene bags (LDPE), were also tested on bell pepper fruit inoculated with A. alternata, using a commercial fungicide as positive control. A concentration of 0.03 mg/ml of MITC inhibited 100% Alternaria growth in vitro. A treatment with 0.56 mg/ml of MCIT with LDPE bags performed better than the commercial fungicide to control fungi rot on bell pepper with no adverse effects on fruit quality. MCIT combined with LDPE bag showed potential to control Alternaria rot on bell pepper [Troncoso R, Espinoza C, Sánchez-Estrada A, Tiznado ME  and García Hugo S, Analysis of the isothiocyanates present in cabbage leaves extract and their potential application to control Alternaria rot in bell peppers, Food Res Int, 2005, 38(6), 701-708].  
Description: 424-425
ISSN: 0975-1092 (Online); 0972-592X (Print)
Appears in Collections:NPR Vol.4(5) [September-October 2005]

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