Results 1 to 10 of about 11,256 (144)
Response surface methodology-optimized extraction of flavonoids from pomelo peels and isolation of naringin with antioxidant activities by Sephadex LH20 gel chromatography [PDF]
In this study, flavonoids were extracted from pomelo peels and naringin was isolated from the flavonoid extract. The effects of extraction parameters, namely, ethanol concentration, solid-to-liquid ratio, and extraction time, on the yield of flavonoids ...
Yuchen Shangguan +7 more
exaly +4 more sources
Two new sphingolipids from the stem bark of Synsepalum msolo (Sapotaceae)
Synsepalum msolo commonly known as Bang Bali in Bali-Nguemba, Cameroon is used in traditional medicine against various diseases. The leaves and stem bark extracts were subjected to silica gel and Sephadex LH20 column chromatography to yield pure ...
Ache Roland Ndifor +7 more
doaj +1 more source
Thành phần hóa học của cao chiết ethyl acetate từ cây ba chẽ Desmodium triangulare (Retz.) Merr
Trong nghiên cứu này, thành phần hóa học của cao chiết ethyl acetate từ thân và lá cây ba chẽ đã được nghiên cứu. Mẫu nguyên liệu khô được nghiền nhỏ, sau đó chiết bằng phương pháp ngấm kiệt với methanol thu được cao chiết thô.
Mai Phương Trang +12 more
doaj +1 more source
PHYTOCHEMICAL INVESTIGATION AND MOLLUSCICIDAL ACTIVITY OF OREOPANAX RETICULATUM DONN [PDF]
The unsaponifiable part of the petroleum ether fraction of the leaves and stems of Oreopanax reticulatum Donn (Family Araliaceae) was analysed by GLC to reveal the presence of a series of hydrocarbons, cholesterol, stigmasterol and -sitosterol.
Abdel-Hameed, S. +3 more
doaj +1 more source
Pest control by biological means is an effective, eco-friendly, and promising method that typically involves compounds naturally derived from actinomycetes. Thus, the present study aimed to screen, characterize, and identify the structure of insecticidal
Young Sook Kim +4 more
doaj +2 more sources
Bioactive components of endophytic fungi from two Hainan mangrove plants
Mangrove endophytic fungi are one of the important sources for discovering natural drug leads. In order to obtain natural compounds with novel structures, the metabolites of two mangrove endophytic fungi Phomopsis sp.
CHEN Biting +7 more
doaj +1 more source
This study used alcoholic ammonium hydroxide to directly hydrolyze and extract secoisolariciresinol diglucoside (SDG) from flaxseed hull in a one pot reaction.
Cong-Cong Zhuang +5 more
doaj +1 more source
Gel permeation chromatography of neutral hydroxy lipids on Sephadex LH-20
Gel-permeation chromatography on Sephadex LH-20, using ethanol as eluent, permits the resolution of neutral hydroxy lipids according to molecular size.
M. Calderon, W.J. Baumann
doaj +1 more source
AKTIVITAS ANTIOKSIDAN EKSTRAK GAMBIR YANG DIPURIFIKASI MENGGUNAKAN KROMATOGRAFI KOLOM SEPHADEX LH-20
Antioxidant Activity of Purifi ed Gambir Extract Using Sephadex LH-20 Column Chromatography ABSTRAK Telah dilakukan ekstraksi terhadap gambir menggunakan tiga jenis pelarut [aquades:etanol (1:1), etanol:etil asetat (1:1), dan etil asetat], dilanjutkan ...
Rusdin Rauf +2 more
doaj +1 more source
The secondary metabolites of the phytopathogenic fungus Corynespora cassiicola CC01 from Hevea brasiliensis were investigated. As a result, two new compounds, 5-acetyl-7-hydroxy-6- methoxybenzofuran-2(3H)-one (1) and (S)-2-(2,3-dihydrofuro [3,2-c]pyridin-
Xiaoyan Yang +7 more
doaj +1 more source

