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_aSarah Sophia M. Mendoza.
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_aSurvey of plants used by the Itawis in traditional health care practices in Basi, Solana, Cagayan with notes on lethality activity using brine-shrimp (artemia samila) bioassay /
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_cSarah Sophia M. Mendoza.
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_cMarch 2017.46
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_a102 pp.
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_aThesis:(B.S. Biology)- Pamantasan ng Lungsod ng Maynila, 2017.
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_aABSTRACT: The objective of this study is to identify and classify the plants used in traditional health care practices by the Itawis in Basi, Solana, Cagayan with notes on the lethality activity of selected plant species. Sixty five (65) semi-structured questionnaires were randomly distributed to the barangay's elders, albularyos, midwives, farmers, and some housewives. An informal intervies with the respondents were also done. The ethanolic crude leaf extract of three (3) plant species namely Stachytarpheta jamaicensis (L.) Vahl, Jatropha curcas L., and Tabernaemontana pandacaqui Lam. Were tested for its lethality using brine-shrimp (Atermia salina) bioassay. Ten (10) 48-hour nauplii were introduced in varying concentrations of the leaf extract such as 25ppm, 50ppm, 75ppm, and 100ppm, and mortality rate were tabulated after 24 hours. LC50 values were calculated using probit analysis at 95% confidence intervals. A total of thirty four (34) medicinal plant species in Basi, Solana, Cagayan were collected, identified, and preserved using herbarium preparation. The most frequently ustilized medicinal plant was Plectrauthus amboinicus (lour.) Spreng. The most commonly employed mode of preparation of the alternative medicine was boiling of the plant part such as the leaves and stems. The most commonly used mode of application was drinking the plant extract. Stachytarpheta jamaicensis (L) Vahl, Jatropha curcas L., and Tabernaemontaba pandacaqui Lam. Showed LC50 values of 61.9ppm, 54.1ppm, and 48.2ppm respectively, all of which are considered to be toxic extract.
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