scholarly journals Eco-friendly dyeing of wool and pashmina fabric using Quercus robur L. (fruit cups) dye and Salix alba L. (wood extract) mordant

2015 ◽  
Vol 7 (1) ◽  
pp. 138-143 ◽  
Author(s):  
Syed Maqbool Geelani ◽  
Shoukat Ara ◽  
Pradeep Kumar Mishra ◽  
S.J.A. Bhat ◽  
Syed Hanifa ◽  
...  
Keyword(s):  
Quercus Robur ◽  
Environmental Safety ◽  
Wool Fabric ◽  
Salix Alba ◽  
Plant Materials ◽  
Colour Strength ◽  
Wood Extract ◽  
Natural Mordant ◽  
Colour Coordinates ◽  
Percent Absorption

Study was conducted to investigate the dyeing potential of Quercus robur L. (fruit cups) dye and Salix alba L. (wood extract) mordant on wool and pashmina fabrics. The experiment was conducted keeping in view the environmental safety by using unutilized plant materials and excluding the usage of chemical agents. The dyeing was carried out individually including and excluding mordant adopting different mordanting methods. The parameters like percent absorption, colour coordinates, colour strength (K/S), relative colour strength and colour fastness with regard to washing, light and rubbing were investigated. The results revealed higher percent absorption of mordanted samples than unmordanted samples. Colour coordinates (L*a*b*, Chroma, hue and ΔE) of dyed wool and pashmina fabric exhibited satisfactory results. The colour strength (K/S) and relative colour strength of pashmina fabric recorded higher than wool fabric. The fastness properties to washing, light and rubbing showed satisfactory grades including and excluding natural mordant. However, the grades of mordanted samples were found better than unmordanted samples. The dye and mordant in isolation and in combination showed beautiful colours and shades on selected fabrics with satisfactory retention properties, hence can be utilized commercially for coloration of wool and pashmina fabrics.

scholarly journals Colorimetric Analysis and Fastness Properties of Jute Fabric Dyed with Eucalyptus Leaves

Tekstilec ◽  
2020 ◽  
Vol 63 (3) ◽  
pp. 195-202
Author(s):  
Kamrun Nahar ◽  
◽  
Shurfun Nahar Arju ◽  
Jannatul Ferdush ◽  
Marzia Islam ◽  
...  
Keyword(s):  
Copper Sulphate ◽  
Ferrous Sulphate ◽  
Fastness Properties ◽  
Colour Fastness ◽  
Jute Fabric ◽  
Eucalyptus Leaves ◽  
Dyeing Process ◽  
Colour Strength ◽  
Natural Mordant ◽  
The Impact

Natural dyestuff has reverted its position in the colouration of textile substrates due to rising concerns of consumers and buyers, particularly about environmental impacts and health issues. Eucalyptus leaves were selected in this study as a source of natural dye along with some of the most generally used mordants to observe the impact of dyeing on jute fabric while trying to keep the dyeing parameters at a minimum level. Dyes were extracted from eucalyptus leaves by boiling in water. Then, the fabric was pre-mordanted using different synthetic mordanting agents, such as alum, potassium dichromate, copper sulphate and ferrous sulphate, which are generally used to substantively enhance the dyestuff on textile fabrics and to improve the fastness properties. Synthetic mordant was used here instead of natural mordant due to the better dyeing compatibility of jute fabric with eucalyptus leaves, since natural mordant has little effect on jute fabric during the process of dyeing. Another aim of this research is to curb the time and energy consumption of the jute dyeing process and so the dyeing is carried out at 75 °C for about 30 minutes. Various types of evaluations were conducted through visual assessment, checking the colour-coordinate values and colour strength values. While colour fastness properties were evaluated by different fastness testing, such as colour fastness to water, washing, rubbing and perspiration. This dyeing process yields a colour range from yellowish to brown with the variation of mordants applied on the fabric. In addition to that, colour co-ordinate and colour strength values ensure better results of dyed fabrics pretreated with ferrous sulphate. Jute fabric dyed with only extracted eucalyptus solution provided satisfactory results in all colour fastness tests, while fabric treated with different mordants showed variations in fastness ratings, and fabric treated with ferrous sulphate and copper sulphate had slightly better fastness ratings.

scholarly journals Eco-dyeing and functional finishing of wool fabric based on Portulaca oleracea L. as colorant and Musa basjoo as natural mordant

2021 ◽  
pp. 103624
Author(s):  
Wei Zhang ◽  
Xin Wang ◽  
Jiali Weng ◽  
Xinwei Liu ◽  
Shaoxuan Qin ◽  
...  
Keyword(s):  
Portulaca Oleracea ◽  
Wool Fabric ◽  
Natural Mordant

Soil Bioengineering - A New Technique to Generate Riverbank Restoration

2012 ◽  
Vol 518-523 ◽  
pp. 1795-1799
Author(s):  
Lan Gu ◽  
Jia Rong Gao ◽  
Yan Wang ◽  
Bin Tian Qian ◽  
Yue Wang
Keyword(s):  
Effective Means ◽  
Salix Alba ◽  
Ecological Functions ◽  
Plant Materials ◽  
Living Plant ◽  
Soil Bioengineering ◽  
Site Restoration ◽  
A New Technique ◽  
Riverbank Restoration ◽  
River Banks

Soil bioengineering is a kind of engineering by using living plant materials to construct the structures with some engineering and ecological functions, which can provide an effective means for the slope stabilization and site restoration of river banks. Experimental site in Liuli River proves that Salix cheilophila Schneid and Salix alba var. tristis are good materials to obtain near-natural riverbank restoration. Soil bioengineering measures of live staking, live fascines and brush layers are effective. After periods time of project implementation, significant effectiveness was obtained on slope stability, habitat improvement, and ecological restoration of river banks. This can provide guidelines for selecting materials and methods to control riverbank erosion. It was concluded that the approach could be widely applied in ecological riverbank restoration in China.

scholarly journals THE EFFECT OF TECHNOGENIC POLLUTION ON THE CONTENT OF BIOLOGICALLY ACTIVE SUBSTANCES IN MEDICINAL PLANTS

ÈKOBIOTEH ◽  
2020 ◽  
Vol 3 (3) ◽  
pp. 525-530
Author(s):  
N.A. Vinogradova ◽  
◽  
A.Z. Glukhov ◽  
Keyword(s):  
Ascorbic Acid ◽  
Medicinal Plants ◽  
Environmental Safety ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Technogenic Pollution ◽  
Plant Materials ◽  
Cadmium And Lead ◽  
Cotinus Coggygria ◽  
Active Substances

The article presents the results of determining the content of flavonoids, anthocyanins, tannins and ascorbic acid in the leaves of Cotinus coggygria Scop, growing under conditions of varying degrees of technogenic pollution. The conformity of the leaves of C. coggygria, collected in the Donetsk region, to the requirements of regulatory documentation for the content of active substances was evaluated. The content of cadmium and lead in the plant materials was determined; its environmental safety was evaluated.

scholarly journals Dyeability of Red Cabbage Colorant on Silk Fabric Treated With Entada Spiralis Extracts

2019 ◽  
Vol 7 (4.14) ◽  
pp. 416
Author(s):  
N. Mat Shom ◽  
M. I.A. Kadir ◽  
M. R. Ahmad
Keyword(s):  
Surface Active Agent ◽  
Active Agent ◽  
Hot Plate ◽  
Red Cabbage ◽  
Colour Strength ◽  
Natural Colorants ◽  
Surface Active ◽  
Dyed Fabrics ◽  
Silk Fabrics ◽  
Colour Coordinates

Of late, dyeing fabrics with natural colorants have been the attention of the industry. Natural colorants especially from plants have the advantage of being friendly towards the environment as the extraction, processing and dyeing procedures are considered green and safe. However, most natural dyes have poor colourfastness and needed mordants to improve their dyeability. In this study, the addition of Entada spiralis was utilized as a surface modifier to improve dyeability on 100% silk fabrics using extracts from red cabbage. The plant serves as a surface-active agent to reduce the surface tension of the fabrics. The surfactant is also a natural resource and therefore is not harmful to the environment. The Entada spiralis was extracted through boiling for 30 minutes on a hot plate before treating the extracts on the fabrics. During dyeing, lime was used as the mordant simultaneously with dyeing. The dyed fabrics were evaluated for colorfastness to washing, rubbing/crocking and perspiration using the Gray Scale Standard. In addition, the dyed fabrics were also measured for their colour strength, colour coordinates and % reflectance. The results showed that dyed fabrics with Entada spiralis have darker shades in comparisons with the untreated fabric.  

scholarly journals Compound Feed Technology in Sturgeon Fish Aquiculture

2020 ◽  
Author(s):  
Olga N. Ozherelyeva ◽  
Andrey A. Sytolkin ◽  
Lyudmila I. Vasilenko ◽  
Maksim M. Danyliv ◽  
Olga A. Vasilenko
Keyword(s):  
Raw Materials ◽  
Live Weight ◽  
Environmental Safety ◽  
Plant Origin ◽  
Fish Processing ◽  
Plant Materials ◽  
Structural Indicators ◽  
By Products ◽  
Sturgeon Fish

The modern fish processing industry of the Russian Federation sets the task of increasing the efficiency of the use and development of the resource potential of the fishery complex by means of aquaculture and mariculture development, including sturgeon fish breeding. In this case, complex processing through the rational use of by-products of fish and hydrobiont. In Russia, China, the EU and other countries, most fish processing enterprises do not rationally use by-products of fish cutting, which leads to violation of environmental safety (waste deposits are littered with waste from the fishing industry). The article discusses the prospects of using alternative plant materials in the diet of sturgeon fish, presents the recipes for full extruded compound feed for this group of organisms, the quality indicators of compound feed for sturgeon. A comprehensive assessment of the quality of compound feed products was obtained according to the physicochemical and structural indicators of compound feed. The optimal terms and conditions of storage of the obtained feed were found. Based on the performed tests, it was concluded that it is advisable to use raw materials of plant origin in the composition of compound feed, which contributes to the growth of the live weight of fish, leads to the replacement of the costly components of the compound feed with cheaper raw materials of plant origin, provided that the nutritional value is not reduced, and the period and conditions of storage meet the existing requirements.

scholarly journals MIGRATION OF TOXIC METALS FROM VEGETABLE WASTE IN COMPOST

2019 ◽  
pp. 145-151
Author(s):  
T.V. SHEVCHUK ◽  
N.F. DOROSHKEVICH
Keyword(s):  
Heavy Metals ◽  
Environmental Safety ◽  
Waste Utilization ◽  
The Body ◽  
Water Soluble ◽  
Raw Material ◽  
Soluble Form ◽  
Vegetable Waste ◽  
Plant Materials ◽  
Fallen Leaves

The article presents the results of studies of the heavy metals transformation from the raw plant materials (dry leaf, lawn grass, vegetable wastes) in the process of composting using the Californian worm. It is known that in cities during the growing season, a large number of fallen leaves is accumulated. It is a valuable raw material for fuel production; it is an excellent thermal insulator, it is considered to be a good mulch and can be recycled. We have developed a humus technology based on vegetable waste (fallen leaves) with the help of a Californian worm. Before composting, the concentration of heavy metals (lead, cadmium, copper and zinc) was determined in foliage collected from the streets of Vinnitsa. Analyzes showed that the background of these metals in plant waste did not exceed the maximum permissible norms. It has been experimentally proved that composting involves the conversion of heavy metals from fallen leaves to the body of the Californian worm and removing them as insoluble components in the lower compass. In addition, it has been experimentally established that during the composting period various heavy metals showed uneven migration and transformation in a soluble form. The most active was adsorption and removal of zinc compost. It was found that humic water-soluble compounds convert more than 78% of the total zinc that was contained in the composted substrate. The least mobile compound was lead. However, even such a metal, as lead, during 150 days of composting by the California worm, turned into 40% soluble form and migrated to the lower layers of humic liquids. Thus, the processing of vegetable waste from cities (fallen leaves, lawn grass, garbage disposal, etc.) by composting using growing worms will not only solve the social problem of utilization, but will also contribute to increasing environmental safety and economic efficiency. Key words: heavy metals, transformation, California worms, compost, vegetable waste, utilization.

scholarly journals Sustainable dyeing of wool fabric with Talaromyces purpurogenus

2019 ◽  
Vol 11 (4) ◽  
pp. 796-801 ◽  
Author(s):  
Himani Verma ◽  
Anita Rani ◽  
Manisha Gahlot ◽  
Alka Goel ◽  
Anil Kumar Sharma
Keyword(s):  
Green Technology ◽  
Natural Dyes ◽  
Wool Fabric ◽  
Synthetic Dyes ◽  
Plant Resources ◽  
Ancient Times ◽  
Bacteria And Fungi ◽  
Over Exploitation ◽  
Continuous Use ◽  
Percent Absorption

Natural dyes had been used by human being since ancient times for colouring of various materials including textiles. These were replaced completely by synthetic dyes, continuous use of which created the problem of pollution and environmental degradation. With the development of green technology and increased awareness of sustainability, the use of non-allergic, non-toxic and eco-friendly natural dyes on textiles has become a matter of significant importance. Among the natural sources of colourants, microorganisms such as bacteria and fungi have gained interest in the field of textile coloration.  In the present study, the pigment solution yielded from growth of Talaromyces purpurogenus sp. on organic waste was used for dyeing of wool fabric. Under the dyeing conditions i.e. 1:30 M:L ratio, pH 5, 80º C temperature and 45 minutes dyeing time, the percent absorption could reach 57 %, 32%, 36% and 49% respectively. The wool fabric samples dyed with the fungal dye exhibited very good to excellent washing and rubbing fastness properties. The colour pigment obtained from fungal thus offered an opportunity to reduce impact on plant resources for dye source exploration. So it can be concluded from the study that a natural fungal dye could help to sustain the environment and to minimize the over exploitation of natural resources.

scholarly journals The Oak–Wood Extract Robuvit® Improves Recovery and Oxidative Stress after Hysterectomy: A Randomized, Double-blind, Placebo-Controlled Pilot Study

Nutrients ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 913 ◽  
Author(s):  
Vladimír Ferianec ◽  
Matej Fülöp ◽  
Miriam Ježovičová ◽  
Jana Radošinská ◽  
Marta Husseinová ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Quercus Robur ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Oak Wood ◽  
Sf 36 ◽  
Wood Extract ◽  
Medical Indications ◽  
And Oxidative Stress

Hysterectomy has a variety of medical indications and improves pre-operative symptoms but might compromise the quality of life during recovery due to symptoms such as fatigue, headache, nausea, depression, or pain. The aim of the present study was to determine the effect of a standardized extract from French oak wood (Quercus robur) containing at least 40% polyphenols of the ellagitannins class, Robuvit®, on convalescence and oxidative stress of women after hysterectomy. Recovery status was monitored with the SF-36 questionnaire. The supplementation with Robuvit® (300 mg/day) during 4 weeks significantly improved general and mental health, while under placebo some items significantly deteriorated. Oxidative stress and enhancement of MMP–9 activity was significantly reduced by Robuvit® versus placebo. After 8 weeks of intervention, the patients’ condition improved independently of the intervention. Our results suggest that the use of Robuvit® as a natural supplement relieves post-operative symptoms of patients after hysterectomy and reduces oxidative stress. The study was registered with ID ISRCTN 11457040 (13/09/2019).

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