Results 11 to 20 of about 2,910 (216)
Potensi Aktivitas Antioksidan Alstonia Scholaris dan Alstonia Macrophylla
Gaya hidup sehat dengan slogan back to nature merupakan tren yang ramai dibicarakan orang dalam sepuluh tahun terakhir, tren ini memanfaatkan bahan alam untuk pencegahan dan pengobatan. Para ahli pun merekomendasikan penggunaan tanaman berkhasiat obat, sebagai solusi agar terhindar dari zat - zat kimia yang berefek negatif bagi tubuh.
Diennisa Izzati Thahira +2 more
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Alkaloids of Alstonia Muelleriana [PDF]
Abstract Four indole alkaloids have been isolated and characterized from the tree bark of Alstonia muelleriana Domin. One of these is the previously known dimeric indole alkaloid, villalstonine (I). A second probably dimeric indole alkaloid, alstonisidine (II), and two monomeric indole alkaloids, alstonisine (III) and alstonerine (IV) are also ...
Elderfield, Robert Cooley +1 more
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Macralstonine from Alstonia muelleriana [PDF]
Abstract Macralstonine has been isolated from the alkaloidal fraction of Alstonia muelleriana. This supports the close phytochemical relationship between this species and A. macrophylla inferred in other recent work.
Cook, James M., Le Quesne, Philip W.
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Further alkaloids of Alstonia muelleriana [PDF]
Abstract Five further alkaloids, des- N ′ a -methylanhydromacralstonine, quebrachidine, vinervinine, pleiocarpamine, and 2,7-dihydropleiocarpamine, have been isolated from Alstonia muelleriana bark. Phytochemical problems in the genus Alstonia are considered, especially with reference to the ‘macroline-derived’ indole and bis-indole alkaloids.
Burke, David E. +5 more
openaire +4 more sources
TRITERPENES OF ALSTONIA SCHOLARIS R.Br.
a-Amyrin acetate and lowed acetate have been isolated as the major interpenes of the bark of \(Alstonia\)\( scholar\)
(MRS.) D. CHAKRAVARTI +2 more
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Larvicidal and Repellent Effects Against Vector Mosquitoes <i>Anopheles stephensi</i> and <i>Aedes aegypti</i> (Diptera: Culicidae) for <i>Alstonia scholaris</i> Linn R Br Flower and Prospective Characterisation of Bioactive Extract. [PDF]
Malaria and dengue are among the most widespread vector‐borne diseases globally. This study evaluated the larvicidal and repellent characteristics of Alstonia scholaris (Apocynaceae) flower extracts against the Anopheles stephensi and Aedes aegypti vectors.
Fatima K +6 more
europepmc +2 more sources
Radio-response to leucocytes in peripheral blood of mice against gamma irradiation and their protection by Alstonia scholaris extract [PDF]
The present study deals with the protective effect of Alstonia scholaris extract against radiation-induced hematological alterations. Swiss albino male mice were selected from an inbred colony and divided into four groups.
Gupta Uma +2 more
doaj +1 more source
Euseius alstoniae (Gupta, 1975) Amblyseius alstoniae Gupta, 1975: 31. Amblyseius (Euseius) alstoniae. — Gupta, 1985. Euseius alstoniae. — Chant & McMurtry, 2005c: 187. (Figs 1–7, 82–83) Female (n =10). Dorsum (Fig. 1). Dorsal shield 328 (320–335) long and 230 (225–235) wide, striated laterally and reticulated dorsomedially, with five pairs of ...
Bhowmik, Sagarika, Karmakar, Krishna
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Penelitian ini bertujuan untuk mengukur densitas dan diameter pohon pulai (Alstonia scholaris) di Taman Hutan Raya Sultan Syarif Hasyim Kota Pekanbaru. Data dikumpulkan dengan membuat plot pengamatan dengan intensitas sampling 0,1 %.
Sri Wahyuni
doaj +1 more source
The Cheese wood (Alstonia boonei) tree, known as Egbu-ora in Igbo, Ahun in Yoruba, Ukpukunu in Urhobo and Ukhu in Edo, is a widely distributed plant in the lowlands and rain-forest areas of Nigeria.
O. A. Osagie +3 more
doaj +1 more source

