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 ◽  
...  
2015 ◽  
Vol 7 (1) ◽  
pp. 138-143 ◽  
Author(s):  
Syed Maqbool Geelani ◽  
Shoukat Ara ◽  
Pradeep Kumar Mishra ◽  
S.J.A. Bhat ◽  
Syed Hanifa ◽  
...  

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.


Planta Medica ◽  
2014 ◽  
Vol 80 (16) ◽  
Author(s):  
C Agyare ◽  
E Baiden ◽  
YD Boakye ◽  
L Adu-Amoah

2016 ◽  
Vol 4 (1) ◽  
pp. 122
Author(s):  
Seken Polansky ◽  
Dwi Guntoro

Gulma merupakan salah satu kendala utama dalam produksi padi sawah. Penelitian ini bertujuan untuk mengetahui efektivitas herbisida berbahan aktif campuran bentazon dan MCPA untuk mengendalikan gulma padi sawah. Percobaan dilaksanakan di Desa Bojong Jengkol, Kecamatan Ciampea, Kabupaten Bogor, Jawa Barat dari September 2012 hingga Januari 2013. Percobaan menggunakan Rancangan Acak Kelompok satu faktor dengan tujuh perlakuan dan empat ulangan. Percobaan terdiri atas 5 perlakuan herbisida berbahan aktif bentazon dan MCPA yaitu dosis 1.00 L ha-1, 1.50 L ha-1, 2.00 L ha-1, 2.50 L ha-1, 3.00 L ha-1; pengendalian gulma manual dan tanpa pengendalian gulma (kontrol). Hasil menunjukkan aplikasi herbisida berbahan aktif campuran bentazon dan MCPA dapat mengendalikan gulma dari golongan teki dan gulma daun lebar. Spesies gulma yang terkendalikan dari golongan teki adalah Fimbristylis miliacea dan Cyperus iria, sedangkan dari golongan daun lebar adalah Ludwigia octovalvis, Alternanthera philoxeroides, dan Portulaca oleracea. Aplikasi herbisida pada semua dosis uji menunjukkan toksisitas rendah pada tanaman padi. Aplikasi herbisida berbahan aktif Bentazon dan MCPA pada semua dosis uji menurunkan persentase gabah hampa sebesar 6-10% serta dapat meningkatkan produktivitas padi sebesar 48.6% yang tidak berbeda dengan produktivitas padi pada pengendalian manual.


2018 ◽  
Vol 41 (3) ◽  
pp. 245-253 ◽  
Author(s):  
Nallely R. Román-Cortés ◽  
Ma. del Rosario García-Mateos ◽  
Ana Ma. Castillo-González ◽  
Jaime Sahagún-Castellanos ◽  
Ma. Adelina Jiménez-Arellanes

En México, el consumo de verdolagas (Portulaca oleracea), quelites (Chenopodium spp.), quintoniles (Amaranthus spp.), huauzontles (Chenopodium spp.) y romeritos (Suaeda spp.) se mantiene desde épocas precolombinas. Actualmente, estas hortalizas forman parte de las costumbres y tradiciones culinarias y de la gran biodiversidad que se cultiva en el país; sin embargo, se desconoce su calidad nutricional y nutracéutica. El objetivo de este estudio fue evaluar el contenido de minerales, composición proximal y nutracéuticos para contribuir a la revalorización alimentaria de estas hortalizas. Los análisis de minerales y proximal se realizaron mediante métodos convencionales y las concentraciones de nutracéuticos por análisis espectrofotométricos. El análisis de varianza y la prueba de medias (Tukey, 0.05) mostraron que las verdolagas tuvieron las concentraciones mayores de N, P, Fe, Mg, Mn, Cu y Zn; los quintoniles presentaron los contenidos mayores de Ca en comparación con los de las hortalizas restantes. Los contenidos de carbohidratos en orden decreciente fueron en huauzontles > quelites > quintoniles > verdolagas > romeritos, y en fibra cruda fueron en huauzontles > quelites > verdolagas > quintoniles > romeritos. Los Quintoniles y verdolagas presentaron los niveles mayores de proteína (26.2 y 25.9 % respectivamente en base a peso fresco), los huauzontles y los quelites tuvieron el mayor contenido de compuestos fenólicos (432.9 y 420.2 mg equivalentes de ácido gálico 100 g-1 de peso freso, respectivamente), de flavonoides (135.3 y 117.0 mg equivalentes de quercetina 100 g-1 de peso fresco, respectivamente) y actividad antioxidante (83.3 y 88.8 % de inhibición de radicales libres, respectivamente). La actividad antioxidante en huauzontles se asoció con los contenidos de compuestos fenólicos y flavonoides.


2018 ◽  
Vol 69 (10) ◽  
pp. 2682-2692 ◽  
Author(s):  
Candice Popescu (Popiniuc) ◽  
Carmen Popescu ◽  
Stefan Manea ◽  
Valentin Vladut ◽  
Iulian Voicea ◽  
...  

In this paper, a study on the influence of extraction solvent on the active principles content of purslane - Portulaca oleracea extracts was performed. For the study were used both fresh and dried plants, chopped by plant chopping machine. The following extracts were obtained and analysed in the solvent systems mentioned below: (fresh) purslane extract in Ethanol 30%, (dry) purslane extract in Ethanol 30%; (fresh) purslane extract in EtOH 70%, (dry) purslane extract in EtOH 70%; (fresh) purslane extract in propylene glycol 20%, (dry) purslane extract in propylene glycol 20%; (fresh) purslane extract in PG 100%, (dry) purslane extract in PG 100%; (fresh) purslane extract in glycerine 20%, (dry) purslane extract in glycerine 20%; (fresh) purslane extract in R glycerine, (dry) purslane extract in R glycerine; purslane hydro-alcoholic glycerine extract. The results obtained in the study performed on purslane extracts in different solvents show that the capitalization of purslane can become very profitable and with beneficial effects on economy in our country, both in terms of food and as medicinal plant.


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