Results 71 to 80 of about 911 (189)

Oxidation reactions are required to produce atranorin from acetate by alginate-immobilized cells of Cladonia verticillaris. [PDF]

open access: yes, 2000
Atranorin, a p-depside of the b-orcinol series, is produced by several Cladonia species. Immobilized cells of Cladonia verticillaris in calcium alginate are able to produce atranorin when they are supplied with 1.0 mM acetate as a precursor.
Fontaniella, B.   +3 more
core  

Biologically-active compounds from Brazilian lichens and their affinity with ether [PDF]

open access: yes, 2017
It can be obtained from lichens biologically-active extracts and pure substances, many of them of phenolic nature. They are usually obtained by using organic solvents, such as diethyl ether.
Buril, M. L. L.   +7 more
core   +1 more source

Santon Diprenilasi dari Kayu Akar Garcinia Tetranda Pierre [PDF]

open access: yes, 2015
Garcinia tetranda merupakan salah satu spesies dari famili Clusiaceae yang mengandung senyawa metabolit sekunder. Senyawa golongan santon telah berhasil diisolasi dari fraksi S ekstrak etil asetat kayu akar Garcinia tetranda Pierre.
Ersam, T. (Taslim)   +1 more
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Isolasi Senyawa Artonine E Dari Ekstrak Kulit Akar Artocarpus Elasticus [PDF]

open access: yes, 2016
Penelitian ini bertujuan untuk mengisolasi senyawa flavonoid dari kulit akar Artocarpus elasticus yang berasal dari Alor, Nusa Tenggara Timur (NTT). Proses ekstraksi dilakukan dengan menggunakan pelarut metanol dan dilanjutkan dengan metode fraksinasi ...
Amalia, L. (Lita), Ersam, T. (Taslim)
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Usnea dasaea, a further new addition to the Lichen Flora of Tamil Nadu State, India [PDF]

open access: yes, 2020
The present study addresses the addition of one new fruticose lichen species for the first time to the state of Tamil Nadu in Western Ghats, India. Usnea dasaea Stirt. is a new occurrence in Tamil Nadu.
Kalidoss, Rajendran   +4 more
core   +3 more sources

Antioxidant activity and mechanisms of action of natural compounds isolated from lichens : a systematic review [PDF]

open access: yes, 2014
Chronic diseases such as cancer, diabetes, neurodegenerative and cardiovascular diseases are characterized by an enhanced state of oxidative stress, which may result from the overproduction of reactive species and/or a decrease in antioxidant defenses ...
Almeida, Jackson Roberto Guedes da Silva   +10 more
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A New Lichen Depsidone from L Obaria Pulmonaria [PDF]

open access: yes, 2012
The continuation of our phytochemical survey of Lobaria pulmonaria (L.) Hoffm. (Lobariaceae), has led to the isolation and identification of a new lichen depsidone (1) characterised by the normal analytical and spectroscopic techniques. Unlike previously
De Rosa, Salvatore   +5 more
core  

A new depsidone of Lobaria pulmonaria with acetylcholinesterase inhibition activity

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2012
The phytochemical investigation conducted on a foliose lichen, Lobaria pulmonaria(L.) Hoffm. (Lobariaceae), led to the isolation of a new depsidone in the form of its diacetate derivative which showed a moderate acetylcholinesterase inhibition activity (1 µg) in vitro.
Pejin   +11 more
openaire   +5 more sources

Simulated global warming increases usnic acid but reduces perlatolic acid in the mat-forming terricolous lichen Cladonia stellaris [PDF]

open access: yes, 2017
Lichens as sessile and slow-growing symbiotic associations have evolved various carbon-based secondary compounds (CBSCs) to mitigate the effects of some stressors in the extreme environments in which they often grow.
Asplund, Johan   +2 more
core   +1 more source

Developing Proteomimetic Inhibitors of Large Surface Area, Low Affinity Protein-Protein Interaction [PDF]

open access: yes, 2015
The majority of cellular processes are governed by the activity of multimeric protein complexes assembled through specific protein-protein interactions (PPIs).
Bruno, Paul Anthony
core  

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