Abstract:
:An activity-guided isolation and purification process was used to identify the l,l-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging components of the food plant (Terminalia arjuna) of Antheraea mylitta. Dry leaves of T. arjuna were extracted with different solvents and tested for their antioxidant activity against DPPH(•). The acetone-water (8:2) extract expressed strong DPPH radical-scavenging activity, and was subjected to column chromatography over silica gel. Gallic acid, apigenin, luteolin, quercetin, epicatechin, ellagic acid and 1-O-β-galloyl glucose were isolated as active components and characterised by using different spectroscopic techniques.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Singh PP,Chauhan SMdoi
10.1080/14786419.2013.879304subject
Has Abstractpub_date
2014-01-01 00:00:00pages
760-3issue
10eissn
1478-6419issn
1478-6427journal_volume
28pub_type
杂志文章abstract::Phebaclavin I, a novel 3-prenylated coumarin, was isolated from the aerial parts of Phebalium aff. tuberculosum (Rutaceae) together with five known related compounds, Phebaclavin A, B, D, G, H. The structure of phebaclavin I was established by spectroscopic methods. Several other known coumarins were obtained, includi...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410500087525
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abstract::The fungus showing homology with Nodulisporium by 28S ribosomal gene sequencing, which has been discovered as an endophyte on medicinal plant Nothapodytes foetida, was found to produce 45 and 5.5 microg of camptothecin (CPT) per gram of mycelia at bioreactor and at shake flask, respectively, which was further quantifi...
journal_title:Natural product research
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journal_title:Natural product research
pub_type: 杂志文章
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abstract::Sanguisorba officinalis L. is a traditional herbal plant that belongs to the genus Sanguisorba and the family Rosaceae. A new ursane-type triterpenoid, 3-oxo-urs-11, 13(18)-dien-19, 28-olide (1), two known ursane-type triterpenoids (3 - 4) and three known oleanane-type triterpenoids (2, 5 - 6) were isolated from the r...
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abstract::32 medicinal plants that are unique to the Russian Pharmacopeia have 693 isolated natural products associated with them (an average of 21.66 compounds per plant). This is in contrast to the US Pharmacopeia plants that have delivered 2366 known natural products (an average of 42.25 compounds per plant). ...
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journal_title:Natural product research
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abstract::Leaves of Kalanchoe pinnata are used worldwide for healing skin wounds. This study aimed to develop and compare two creams containing a leaf aqueous extract of K. pinnata (KP; 6%) and its major flavonoid [quercetin 3-O-α-L-arabinopyranosyl-(1→2)-α-L-rhamnopyranoside] (0.15%). Both creams were topically evaluated in a ...
journal_title:Natural product research
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