Potential new sources of natural dyes from the traditional pharmacopoeia of New-Caledonia

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
M Toussirot ◽  
E Hnawia ◽  
D Cardon ◽  
W Nowik ◽  
A de la Sayette ◽  
...  
2020 ◽  
pp. 139-143

Natural dyes were followed and prepared from a pomegranate, purple carrot, and eggplant peel. The absorbance spectra was measured in the wavelength range 300-800 nm. The linear properties measurements of the prepared natural dye freestanding films were determined include absorption coefficient (α0), extinction coefficient (κ), and linear refraction index (n). The nonlinear refractive index n2 and nonlinear absorption coefficient β2 of the natural dyes in the water solution were measured by the optical z-scan technique under a pumped solid state laser at a laser wavelength of 532 nm. The results indicated that the pomegranate dye can be promising candidates for optical limiting applications with significantly low optical limiting of 3.5 mW.


1945 ◽  
Vol 14 (24) ◽  
pp. 355-357
Author(s):  
Lawrence Lader
Keyword(s):  

1946 ◽  
Vol 15 (17) ◽  
pp. 264-267
Author(s):  
Lewis S. Feuer
Keyword(s):  

Author(s):  
Modest Guţu ◽  
Thomas Iliffe

Leptochelia Vatulelensis(Crustacea: Tanaidacea), A New Species From Anchialine Caves of the South-Western PacificLeptochelia vatulelensisn. sp., discovered on the small islands of Vatulele (Fijian group) and Ouvéa (Loyalty Islands, New Caledonia), is described and illustrated. The new species is distinguished from the others of the"Leptochelia-dubiagroup" (to which it is generally similar) by the following combination of morphological characteristics: (1) the presence of three to four distal setae on the maxilliped basis; (2) merus of pereopods III and IV with only a distosternal seta; (3) endopod of the uropods formed of four (rarely three) articles; (4) males with two (sometimes three) relatively short aesthetascs on the first five articles of the antennular flagellum; (5) male cheliped with a diminished dimorphism; (6) males with a vertical comb-row of setae on the cheliped propodus. Although it inhabits inland, anchialine caves, the new species lacks morphological features that are characteristic of some cave species.


2008 ◽  
Vol 59 (10) ◽  
Author(s):  
Simona Popa ◽  
Mariana Pop ◽  
Alfa Xenia Lupea ◽  
Violeta Turcu

It is very important for food industry to use ecological additives and adjuvants such as natural dyes extracted from plants. The paper presents a study regarding colour and colouring properties of the natural, non � toxic dye extracted from fresh fruits of cranberry (Vaccinium vitis-idaea) water extracted. Colours were measured in CIELAB system using a standard white specimen. The samples are different regarding their dye concentration. Experiments comprising more samples sets used three different illuminators. The hue, luminosity and saturation are discussed. The phenomenon of dichroism was also studied.


2019 ◽  
Author(s):  
Tri Rahayuningsih ◽  
Fungki Sri Rejeki ◽  
Dyah Widhowati

2018 ◽  
Vol 15 (1-2) ◽  
pp. 1-5
Author(s):  
Alexandra Kurmann ◽  
Tess Do

This special issue follows a conference entitled ‘Rencontres: A Gathering of Voices of the Vietnamese Diaspora’ that was held at the University of Melbourne, December 1-2 in 2016 and which sought to enable, for the first time, the titular transdiasporic rencontres or encounters between international authors of the Vietnamese diaspora. The present amalgam of previously unpublished texts written by celebrated Francophone and Anglophone authors of Vietnamese descent writing in France, New Caledonia and Australia today is the result of the intercultural exchanges that took place during that event. Literary texts by Linda Lê, Anna Moï and Thanh-Van Tran-Nhut are followed by writerly reflections on the theme of transdiasporic encounters from Hoai Huong Nguyen, Jean Vanmai and Hoa Pham. Framing and enriching these texts, scholarly contributions by established experts in the field consider the literary, cultural and linguistic transfers that characterize contemporary writing by authors of Vietnamese origin across the Francophone world. Ce volume spécial réunit les Actes du colloque ‘Rencontres : A Gathering of Voices of the Vietnamese Diaspora’ qui s’est tenue à l’Université de Melbourne les 1er et 2 décembre 2016 et qui visait à faciliter, pour la première fois, les rencontres entre les auteurs, chercheurs et universitaires internationaux de la diaspora vietnamienne. Les fruits de leurs échanges interculturels y sont réunis dans ce présent recueil sous deux formes complémentaires : d’un côté, les articles d’experts en littérature francophone comparée ; de l’autre, les contributions créatives de célèbres auteurs francophones et anglophones d’origine vietnamienne basés aujourd’hui en France, en Nouvelle Calédonie et en Australie. Les textes littéraires de Linda Lê, Anna Moï et Thanh-Van Tran-Nhut, suivis de réflexions d’auteurs par Hoai Huong Nguyen, Hoa Pham et Jean Vanmai sur le thème des rencontres transdiasporiques, se retrouvent enrichis par les études savantes menées sur les transferts littéraires, culturelles et linguistiques qui caractérisent l’écriture contemporaine des écrivains d’origine vietnamienne dans le monde francophone.


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