Evaluation of natural dyes Curcuma longa and Nyctanthes arbor ‐ tristis with different mordants on plant tissues under fluorescence microscopy

2020 ◽  
Author(s):  
Nikita G. Shet Verenkar ◽  
Krishnan Sellappan
Keyword(s):  
Fluorescence Microscopy ◽  
Curcuma Longa ◽  
Natural Dyes ◽  
Plant Tissues

scholarly journals Barrier filter for fluorescence microscopy of strongly autofluorescent plant tissues. Application to actin cables in Chara.

1979 ◽  
Vol 27 (5) ◽  
pp. 1000-1002 ◽  
Author(s):  
E A Nothnagle ◽  
W W Webb
Keyword(s):  
Fluorescence Microscopy ◽  
Ferric Chloride ◽  
Cupric Chloride ◽  
Methanol Solution ◽  
Plant Tissues ◽  
Heavy Meromyosin ◽  
Actin Cables

A liquid barrier filter for use in fluorescence microscopy of strongly autofluorescent plant tissues is described. The filter consists of a methanol solution of cupric chloride and ferric chloride and isolates fluorescein fluorescence from the strong red autofluorescence of photosynthetic plant tissues. Subcortical actin cables in the giant alga Chara are being visualized through use of this filter together with heavy meromyosin labeling.

Extraction of natural dyes from Curcuma longa, Trigonella foenum graecum and Nerium oleander, plants and their application in antimicrobial fabric

2015 ◽  
Vol 70 ◽  
pp. 84-90 ◽  
Author(s):  
R. Mari Selvam ◽  
G. Athinarayanan ◽  
A. Usha Raja Nanthini ◽  
A.J.A. Ranjit Singh ◽  
K. Kalirajan ◽  
...  
Keyword(s):  
Curcuma Longa ◽  
Natural Dyes ◽  
Nerium Oleander ◽  
Trigonella Foenum Graecum ◽  
Antimicrobial Fabric

scholarly journals NEW NATURAL DYES DEVELOPMENT: Caesalpinia Sappan L.-Curcuma Longa BLENDED DYES

2020 ◽  
Vol 13 (02) ◽  
pp. 991-999
Author(s):  
N. Kusumawati ◽  
Samik ◽  
A.B. Santoso ◽  
S. Muslim
Keyword(s):  
Curcuma Longa ◽  
Natural Dyes ◽  
Caesalpinia Sappan

scholarly journals An Optical Clearing Technique for Plant Tissues Allowing Deep Imaging and Compatible with Fluorescence Microscopy

2014 ◽  
Vol 166 (4) ◽  
pp. 1684-1687 ◽  
Author(s):  
Cherish A. Warner ◽  
Meredith L. Biedrzycki ◽  
Samuel S. Jacobs ◽  
Randall J. Wisser ◽  
Jeffrey L. Caplan ◽  
...  
Keyword(s):  
Fluorescence Microscopy ◽  
Plant Tissues ◽  
Optical Clearing ◽  
Deep Imaging ◽  
Clearing Technique

scholarly journals THE NATURAL DYES EXTRACTED IN SÃO JOÃO DE CÔRTES, ALCÂNTARA, MARANHÃO: AN APPROACH ORIENTED TO SUSTAINABLE DESIGNOs Corantes Naturais Extraídos em São João de Cortex, Alcantara, Maranhão: Uma Abordagem Orientada para o Design Sustentável

2017 ◽  
Vol 3 (4) ◽  
pp. 93-107
Author(s):  
Cláudia Do Rosário Matos Nogueira ◽  
Raquel Gomes Noronha ◽  
Denilson Moreira Santos
Keyword(s):  
Qualitative Research ◽  
Sustainable Design ◽  
Curcuma Longa ◽  
Rhizophora Mangle ◽  
Natural Dyes ◽  
Bixa Orellana ◽  
Red Mangrove ◽  
Ethnographic Approach

This article discusses the obtainment of natural dyes in São João de Côrtes, Alcântara, Maranhão, extracted from annatto (Bixa Orellana), serrette (Byrsonima Basiloba), red mangrove (Rhizophora Mangle), saffron (Curcuma Longa), genipap (Genipa Americana) and wild indigo (Indigofera Suffruticosa). As an objective, this article proposes a course to discuss aspects of territorial design and to investigate the processes of obtaining the natural dyes from the aforementioned community, emphasizing sustainability. As far as methods, there is a description of the traditional techniques used by residents of the said village for the production of natural dyes, forming a qualitative research with an ethnographic approach which features interaction with the community through interviews with indirect questions, footage and photographs.

scholarly journals Novel Approach to Dye Polyethylene Terephthalate (PET) Fabric in Supercritical Carbon Dioxide with Natural Curcuminoid Dyes

2019 ◽  
Vol 27 (3(135)) ◽  
pp. 65-70 ◽  
Author(s):  
Shekh Mamun Kabir ◽  
Mahabub Hasan ◽  
Zulhash Uddin
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Polyethylene Terephthalate ◽  
Curcuma Longa ◽  
Natural Dyes ◽  
Process Time ◽  
Pet Fabric ◽  
Novel Approach ◽  
Exhaust Dyeing ◽  
Supercritical Carbon

The use of natural dyes has increased in the last few decades due to the eco-friendly approach of dyeing. There are still some limitations that are associated with natural dyes, such as dyeing efficiency, reproducibility of shades, process complexity, availability etc. The main problem associated with the dyeing property of natural dyes is “low exhaustion”. In this study, natural dyestuff from Curcuma longa L. was extracted and polyethylene terephthalate fabric was dyed with it in the same bath by employing the supercritical carbon dioxide method. The method was developed to improve the dye-ability of natural dyes and reduce the process time and effluent. Curcuminoid dye exhaustion on PET fabric showed almost 80% by using supercritical carbon dioxide dyeing methods, and the highest colour strength (K/S = 12) was obtained. Coloured polyethylene terephthalate fabric treated with supercritical carbon dioxide showed deeper shades (L* = 72.92) and better fastness properties as compared with high temperature exhaust dyeing methods.

Stabilization of Natural Dyes by High Levels of Antioxidants

2012 ◽  
Vol 441 ◽  
pp. 192-199 ◽  
Author(s):  
Da Peng Li ◽  
Paul Calvert ◽  
Charlene Mello ◽  
Kenneth Morabito ◽  
Anubhav Tripathi ◽  
...  
Keyword(s):  
Methylene Blue ◽  
High Stability ◽  
Uv Light ◽  
Natural Dyes ◽  
Plant Tissues ◽  
Thin Polymer Films ◽  
Thin Polymer ◽  
Uv Absorbers ◽  
High Concentrations ◽  
The Stability

Natural dyes are normally unstable to photooxidation by UV light. We have measured the stability of a number of natural dyes in combination with high concentrations of antioxidants, excited state quenchers, and UV absorbers. We find that certain combinations, including indigo/BHT, methylene blue/p-benzoquinone, and methylene blue/triethylamine show enhanced stability in solution and/or in thin polymer films. By comparing solutions and films of the mixed components with solutions and films of the antioxidant placed between the dye and UV source, we can show that the effect is not UV screening but is due to some form of intermolecular chemistry. We believe that this effect may account for the high stability of natural dyes in plant tissues, such as the skins of fruit, and may be usable to stabilize natural dyes in foods or textiles, especially if suitable nanoparticle structures can be developed.

Study on the Dyeing Properties of Poly(Lactic Acid) and Silk Yarns with Natural Dyes

2012 ◽  
Vol 486 ◽  
pp. 384-387 ◽  
Author(s):  
Suchada Ujjin ◽  
Suesat Jantip
Keyword(s):  
Curcuma Longa ◽  
Natural Dye ◽  
Natural Dyes ◽  
Poly Lactic Acid ◽  
Color Properties ◽  
Dyeing Properties ◽  
Different Color ◽  
Tagetes Erecta L ◽  
Acacia Catechu ◽  
High Degree

This research aimed to study the dyeing properties on the PLA and silk yarns of the natural dyes obtained from various materials, viz. marigold petals (Tagetes erecta L.), rhubarb rhizomes (Radix et Rhizoma Rhei), garcinia barks (Garcinia Dulcis Kurz), turmeric rhizomes (Curcuma Longa Linn.), sappan barks (Caesalpinia sappan Linn.) and catechu barks (Acacia catechu Willd.). The color properties of the dyed yarns was determined and compared. The results observed the different color properties (L*, a* and b* values) and a shift of λmaxof the dyes on the PLA and silk yarns. This change in color properties of each natural dye was expected to be affected by the types of substrate (textile fiber) and also the chemical nature of the natural dyes. The study of the build-up properties indicated that the turmeric dye is the only natural dye which showed an outstanding performance on PLA and silk. A high degree of color yield of turmeric dye was obtained on both yarns, whereas a poor build-up was observed for the rest of the dyes.

scholarly journals Distribution of aluminium in hydrated leaves of tea (Camellia sinensis) using synchrotron- and laboratory-based X-ray fluorescence microscopy

Metallomics ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1062-1069
Author(s):  
Antony van der Ent ◽  
Peter M. Kopittke ◽  
David J. Paterson ◽  
Lachlan W. Casey ◽  
Philip Nti Nkrumah
Keyword(s):  
Fluorescence Microscopy ◽  
Camellia Sinensis ◽  
Plant Tissues ◽  
X Ray

This study used X-ray fluorescence microscopy to reveal the distribution of aluminium in fresh hydrated plant tissues of Tea (Camellia sinensis).

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