Isolation of chlorophylls from stinging nettle (Urtica dioica L.)

Hojnik Niderl, Maša; Škerget, Mojca; Knez, Željko

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Naslov:	Isolation of chlorophylls from stinging nettle (Urtica dioica L.)
Avtorji:	ID Hojnik Niderl, Maša (Avtor) ID Škerget, Mojca (Avtor) ID Knez, Željko (Avtor)
Datoteke:	http://dx.doi.org/10.1016/j.seppur.2007.02.018
Jezik:	Angleški jezik
Vrsta gradiva:	Neznano
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	FKKT - Fakulteta za kemijo in kemijsko tehnologijo
Opis:	This study was aimed to assess the feasibility of extracting chlorophylls fromstinging nettle (Urtica dioica L.) by solvent extraction. In preliminary, the investigation concerned three parts of raw material (leaves, stalk and whole plant), different preservation techniques (blanching and drying) and different storage temperatures of preserved material ( \|20 C for blanched and 4 C for dried sample). Extracts were analysed for chlorophyll A and chlorophyll B, respectively, by means of HPLC method. Afterwards, optimizationof single-step conventional extraction was carried out by examining the influence of the following process parameters on the extraction yield and isolation efficiency of chlorophylls: type of organic solvent, content of water in ethanol/water mixtures, ratio solvent/material, temperature, time of extraction and pH of the extraction mixture. Furthermore,to improve the yield and/or the selectivity of the extraction, multi-step conventional extraction experiments as well as other solid ]liquid extraction techniques (soxhlet and ultra-sound assisted) were performed and compared. c 2007 Elsevier B.V. All rights reserved.
Ključne besede:	chemical processing, extraction, nettle, isolation of chlorophyll, chlorophyll content, solvent extraction
Leto izida:	2007
PID:	20.500.12556/DKUM-25915
UDK:	66.061
COBISS.SI-ID:	11289878
ISSN pri članku:	1383-5866
NUK URN:	URN:SI:UM:DK:F1ZXUOU3
Datum objave v DKUM:	31.05.2012
Število ogledov:	2872
Število prenosov:	120
Metapodatki:
Področja:	Ostalo
:	HOJNIK NIDERL, Maša, ŠKERGET, Mojca in KNEZ, Željko, 2007, Isolation of chlorophylls from stinging nettle (Urtica dioica L.). Separation and purification technology [na spletu]. 2007. [Dostopano 19 april 2025]. Pridobljeno s: http://dx.doi.org/10.1016/j.seppur.2007.02.018 Kopiraj citat

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Gradivo je del revije

Naslov:	Separation and purification technology
Skrajšan naslov:	Sep. purif. technol.
Založnik:	Elsevier
ISSN:	1383-5866
COBISS.SI-ID:	1247765

Sekundarni jezik

Jezik:	Angleški jezik
Ključne besede:	kemijska procesna tehnika, ekstrakcija, koprive, izolacija klorofila, vsebnost klorofila, topila

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