Results 11 to 20 of about 2,470 (216)

Potensi Aktivitas Antioksidan Alstonia Scholaris dan Alstonia Macrophylla

open access: yesParapemikir : Jurnal Ilmiah Farmasi, 2021
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
openaire   +2 more sources

Alkaloids of Alstonia Muelleriana [PDF]

open access: yesPhytochemistry, 1972
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
openaire   +3 more sources

Further alkaloids of Alstonia muelleriana [PDF]

open access: yesPhytochemistry, 1973
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   +3 more sources

Radio-response to leucocytes in peripheral blood of mice against gamma irradiation and their protection by Alstonia scholaris extract [PDF]

open access: yesNuclear Technology and Radiation Protection, 2011
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   +3 more sources

Macralstonine from Alstonia muelleriana [PDF]

open access: yesPhytochemistry, 1971
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.
openaire   +3 more sources

MATARANINE A AND B: A NEW DIASTOMERIC INDOLE ALKALOID FROM Alstonia scholaris R.Br. OF LOMBOK ISLAND

open access: yesIndonesian Journal of Chemistry, 2010
Alstonia scholaris R. Br., (Apocynaceae) is widely distributed in Indonesia and in Lombok Island, the plant locally known as ";lolon nita"; has been used to treat malaria.
Surya Hadi
doaj   +3 more sources

TRITERPENES OF ALSTONIA SCHOLARIS R.Br.

open access: yes, 1960
a-Amyrin acetate and lowed acetate have been isolated as the major interpenes of the bark of \(Alstonia\)\( scholar\)
(MRS.) D. CHAKRAVARTI   +2 more
openaire   +3 more sources

Uji Aktivitas Antidiabetes Kulit Batang Pulai (Alstonia scholaris) melalui Studi In Silico dan Prediksi Profil Farmakokinetika

open access: yesJurnal Ilmiah Biosaintropis (Bioscience-Tropic), 2023
Alstonia scholaris is a medicinal plant from the Apocynaceae family. Alstonia scholaris stem bark have some medicinal properties, but their effect on antidiabetics mechanisms is still unclear.
Nugroho Wibisono, Yoyon Arif Martino
doaj   +1 more source

Stereochemical insights into sarpagan and akuammiline alkaloid biosynthesis. [PDF]

open access: yesNew Phytol
Summary Sarpagan and akuammiline monoterpenoid indole alkaloids (MIAs) are a class of bioactive plant‐derived compounds with significant pharmaceutical potential. These alkaloids are formed through oxidative cyclization of geissoschizine, catalyzed by homologous cytochrome P450 monooxygenases (CYP) known as sarpagan bridge enzymes (SBEs) and rhazimal ...
Mann SGA   +6 more
europepmc   +2 more sources

Euseius alstoniae

open access: yes, 2021
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
openaire   +2 more sources

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