Natural Dyes for Textiles

Swamy, V. Narayana; Gowda, K.N. Ninge

doi:10.1016/c2015-0-01885-8

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Turmeric (Curcuma longa) is indigenous to India and Asia (Prasad & Aggarwal, 2011). The tuberous rhizomes of turmeric have been utilized from olden times as an aromatic stimulant in several medicines, a dye and as condiments (Vankar, 2017). India is the main consumer and exporter of turmeric.…”

Section: Introductionmentioning

confidence: 99%

Turmeric (Curcuma longa) drying in natural circulation solar dryer: An experimental evaluation

Gill

Singh

Hans

et al. 2021

J Food Process Engineering

View full text Add to dashboard Cite

A natural circulation solar dryer has been evaluated for drying differently processed turmeric. The predrying treatments namely, hydrothermal treatment using water boiling and steam boiling; and drying methods namely, drying of sliced and unsliced turmeric rhizomes have been investigated. The open sun drying and untreated unsliced turmeric rhizome was used as control. The maximum thermal efficiency of this passive solar dryer has been obtained as 22.4% for the water boiled sliced turmeric, and while that for the steam boiled unsliced turmeric was 14.1%. The thermal efficiency was comparatively lower for untreated turmeric. The quality parameters namely, polishing loss, curcumin content, volatile oil content, total recovery, and color, were found better for steam boiled unsliced turmeric dried in solar dryer. Based on combined perspective of thermal efficiency and quality, drying of unsliced rhizome pretreated with steam in natural circulation solar dryer is recommended as compared to other processing practices. The dryer is economically feasible as indicated by the cumulative present worth of life cycle savings and payback period.

show abstract

Section: Introductionmentioning

confidence: 99%

Turmeric (Curcuma longa) drying in natural circulation solar dryer: An experimental evaluation

Gill

Singh

Hans

et al. 2021

J Food Process Engineering

View full text Add to dashboard Cite

show abstract

The Effect of Aluminum Mordant on the Colour Fastness of Fabrics Made of Cellulose Fibres When Dyeing with Onion Peels

Tuulik,

Beilmann

2024

Lecture Notes on Multidisciplinary Industrial Engineering

View full text Add to dashboard Cite

Sustainable Hues: Exploring the Molecular Palette of Biowaste Dyes through LC-MS Metabolomics

et al. 2021

View full text Add to dashboard Cite

Underutilized biowaste materials are investigated for their potential as sustainable textile colorants through an approach based on mass spectrometry, bioinformatics, and chemometrics. In this study, colorful decoctions were prepared from the outer bark of Eucalyptus deglupta and fruit peels of Syzygium samarangense, Syzygium malaccense, Diospyros discolor, and Dillenia philippinensis. Textile dyeing was performed along with liquid chromatography–mass spectrometry (LC–MS)-based untargeted metabolomics to determine the small molecules responsible for the observed colors. Global Natural Products Social Molecular Networking (GNPS) guided the annotation of black-producing proanthocyanidins in D. philippinensis and E. deglupta through complexation with FeSO4 mordant. Flavonoids from the yellow-colored D. philippinensis extracts were found to be similar to those in Terminalia catappa, a known traditional dye source. A higher intensity of epicatechin in E. deglupta produced a red-brown color in the presence of Cu2+. Furthermore, Syzygium fruit peels have poor wash-fastness in cotton fibers, but bioactive chalcone unique to S. samarangense samples may be a potential nutritional food colorant. Unsupervised PCA and supervised OPLS-DA chemometrics distinguished chemical features that affect dyeing properties beyond the observed color. These findings, along with growing data on natural dyes, could guide future research on sustainable colorants.

show abstract

Natural Dyes for Textiles

Cited by 3 publications

References 0 publications

Turmeric (Curcuma longa) drying in natural circulation solar dryer: An experimental evaluation

Turmeric (Curcuma longa) drying in natural circulation solar dryer: An experimental evaluation

The Effect of Aluminum Mordant on the Colour Fastness of Fabrics Made of Cellulose Fibres When Dyeing with Onion Peels

Sustainable Hues: Exploring the Molecular Palette of Biowaste Dyes through LC-MS Metabolomics

Contact Info

Product

Resources

About