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Articles by S.T. Arannilewa
Total Records ( 3 ) for S.T. Arannilewa
  S.T. Arannilewa and O.O. Odeyemi
  Laboratory experiments were carried out to investigate the efficacy of ethanolic extract of four plant materials, namely: Zanthoxylum xanthoxyloides (Lam.) Waterm., Aristolochia ringens(Vahl), Colocasia esculenta (L.) Schott and Morinda lucida (L) on the maize weevil Sitophilus zeamais (Mots). Parameters assessed were adults toxicity, adult emergence, percentage of reduction of plants and damage effect of weevils to the grains at 0.0, 1.0, 1.5 and 2.0% (w/v) concentrations. Zanthoxylum xanthoxyloides evoked 100% adult mortality within 24 h after treatment; and A. ringens also significantly caused 100% mortality within 48 h. Aristolochia ringens at all concentrations provided good protection to the grains stored for 49 days and also gave 100% reduction value as well as 0.00% damage and 0.00 Weevil Perforation Index. This study therefore revealed the grain protectant ability of A .ringens and Z. xanthoxyloides on the maize weevil, Sithophlius zeamais. The bioassay procedure used and results obtained are reported.
  S.T. Arannilewa
  A simple bioassay technique to assess pulverized indigenous plant materials for ability to protect maize grains from damage by weevils during storage, was employed. Of the 9 plants that were screened, Zanthoxylum xanthoxyloides (Lam.) Waterm. (Rutaceae), Aristolochia ringens Vahl. (Aristolochiaceae) and Morinda lucida Linn. (Rubiaceae) showed best protectant effects on adult toxicity, adult emergence and Weevil Perforation Index (WPI). The details of the bioassay procedure used and the results obtained are reported.
  J.O. Akinneye , I.A Amoo and S.T. Arannilewa
  Three methods of drying (oven, sun and smoke) were used to dry the samples. The physico-chemical and minerals contents of the sample were determined using standard methods. H. niloticus oven dried recorded the highest (16.42%) moisture content while the least moisture content 9.27% were obtained in Sardinella sp. oven-dried and sun-dried. Highest protein content 51.06% was found in Sardinella sp. sundried while the highest and the least fat value of 60.36% and 12.13%, respectively were recorded for H. niloticus smoke-dried and sun-dried. Banga sp. have the highest ash content of all the fish evaluated for proximate composition. The highest value of the major elements were obtained in this decreasing order K > Na>Mg>Ca in Sardinella sp. (oven-dried) H. niloticus (sun-dried) H. niloticus, (smoke-dried) and Isardinella sp. (oven-dried). The highest value of major element K (250mg), Na (218 mg), Mg(183 mg) and Ca (150 mg) were obtained in Sardinella sp. (oven-dried), H. niloticus (sun-dried), H. niloticus (smoke-dried) and Sardinella sp. (oven-dried), respectively Zinc (Zn) recorded the highest value of all the trace elements determined while Copper (Cu) recorded the lowest value in the trace elements evaluated. The most palatable taste obtained from the group of panellist were found in smoke-dried and oven-dried sample. Most attractive colour was recorded for smoke-dried sample while the lest attractive colour was obtained in sun-dried sample.
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