Dyeing of textiles with natural dyes extracted from Terminalia arjuna and Thespesia populnea fruits

2020 ◽  
Vol 148 ◽  
pp. 112303 ◽  
Author(s):  
Amutha K ◽  
Grace Annapoorani S ◽  
Sudhapriya N
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.


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

2019 ◽  
Vol 15 (4) ◽  
pp. 353-362
Author(s):  
Sambhaji B. Thakar ◽  
Maruti J. Dhanavade ◽  
Kailas D. Sonawane

Background: Legume plants are known for their rich medicinal and nutritional values. Large amount of medicinal information of various legume plants have been dispersed in the form of text. Objective: It is essential to design and construct a legume medicinal plants database, which integrate respective classes of legumes and include knowledge regarding medicinal applications along with their protein/enzyme sequences. Methods: The design and development of Legume Medicinal Plants Database (LegumeDB) has been done by using Microsoft Structure Query Language Server 2017. DBMS was used as back end and ASP.Net was used to lay out front end operations. VB.Net was used as arranged program for coding. Multiple sequence alignment, phylogenetic analysis and homology modeling techniques were also used. Results: This database includes information of 50 Legume medicinal species, which might be helpful to explore the information for researchers. Further, maturase K (matK) protein sequences of legumes and mangroves were retrieved from NCBI for multiple sequence alignment and phylogenetic analysis to understand evolutionary lineage between legumes and mangroves. Homology modeling technique was used to determine three-dimensional structure of matK from Legume species i.e. Vigna unguiculata using matK of mangrove species, Thespesia populnea as a template. The matK sequence analysis results indicate the conserved residues among legume and mangrove species. Conclusion: Phylogenetic analysis revealed closeness between legume species Vigna unguiculata and mangrove species Thespesia populnea to each other, indicating their similarity and origin from common ancestor. Thus, these studies might be helpful to understand evolutionary relationship between legumes and mangroves. : LegumeDB availability: http://legumedatabase.co.in


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