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Articles by Kanitta Jiraungkoorskul
Total Records ( 2 ) for Kanitta Jiraungkoorskul
  Manop Kjanijou , Kanitta Jiraungkoorskul , Piya Kosai and Wannee Jiraungkoorskul
  The mosquito-borne diseases are still the public health’s problems. So, in order to cope with these problems the development of ideal and novel natural product is essential for mosquito larvae’s control. The efficacy of mosquito larvicide of Murraya paniculata leaf aqueous extract was investigated by determining the median lethal concentration, LC50, within 24, 48, 72 and 96 h. Additional, the 25% 24 h LC50 of this extract against the Culex quinquefasciatus larva was investigated after 24 h exposure by using the histological analysis. The histology of the mid-gut was studied and it was found to be different from the normal larvae such as separation of the epithelial cells from the basement membrane, elongation protruded into its lumen, disruption of the microvilli, appearance several vesicles and cytoplasm masses. The results of this study suggested that the aqueous extract of this leaf had a larvicidal property and it could a used as a novel way to control and eradicate the mosquito’s larvae, without the use of harmful pesticides currently available in the market.
  Wannee Jiraungkoorskul , Rachen Singhakumar , Kanitta Jiraungkoorskul and Piya Kosai
  The efficiency of Psidium guajava was studied to illustrate the reduction of ferric nitrilotriacetate (Fe-NTA) toxicity in Puntius altus via the histopathology analysis. The fish (n = 40) were randomly divided into four groups. Each fish was transferred to each aquarium as follows: G1 and G2 were obtained normal fish food; G3 and G4 were obtained guava leaf extract 60 mg g-1 fish food. After 28 days dietary supplement, fish in G2 and G4 were injected intraperitoneal of 9 mg Fe kg-1 b.wt. Twenty-four hour after injection, lesions were especially most evident in the G2. The gills were observed epithelial lifting, lamellar cell hyperplasia. Blood congestion was seen in sinusoids and hepatocytes necroses were also observed. Renal tubular swelling and necrosis were seen. Some areas were found hemosiderin pigment accumulation. Fish with guava pre-treatment (G4) showed slightly alteration when compare those of G2 group. The results suggested that P. guajava leaf extract pre-obtained may play an important role in the reduction of Fe-NTA toxicity in fish.
 
 
 
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