Indigo Dye Derived from <i>Indigofera Tinctoria</i> as Natural Food Colorant

Wahyuningsih, Sayekti; Ramelan, Ari Handono; Wardani, Dyah Kusuma; Aini, Fitri Nur; Sari, Putri Luthfiana; Tamtama, B P N; Kristiawan, Y R

doi:10.1088/1757-899x/193/1/012048

Cited by 22 publications

(13 citation statements)

References 6 publications

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“…The absorption wavelength of indigo from the calculation is in the range wavelength from experiments. Absorption wavelength from the experiment be in the visible range of about 500-700 nm (Wahyuningsih et al, 2017), the absorption wavelength from the calculation is 534.72 nm. This result shows that the theory and basis set for this calculation can provide an accurate number for this molecule.…”

Section: Atomic Chargementioning

confidence: 86%

DFT Study of Leuco-Indigo and Indigo as Active Material in Dye-Sensitized Solar Cell

Maahury

Male

Martoprawiro

2020

Molekul

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Computational study of natural indigo has been carried out to get the optimized structure and electronic properties of two indigo at different pH. It has been found that indigo has the potential to be applied as active material in the dye-sensitized solar cell. Computational calculations are performed using Density Functional Theory (DFT) with B3LYP functional and 6-31G(d,p) for ground state geometry optimization and Time Dependent-Density Functional Theory (TD-DFT) for excited states single point calculation. All calculations are carried out in the gas phase. Geometry optimization results show that Indigo has a planar structure, whereas leuco-indigo structure is not planar. Leuco-indigo absorption wavelength is shorter than indigo. The density of HOMO and LUMO is spreading throughout the molecule. The density of electrons at LUMO extends to the anchoring group. Based on excitation energy, absorption wavelength, excitation composition, and HOMO-LUMO density, it can be concluded that indigo has the potential to be applied in dye-sensitized solar cell (DSSC)

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Section: Atomic Chargementioning

confidence: 86%

DFT Study of Leuco-Indigo and Indigo as Active Material in Dye-Sensitized Solar Cell

Maahury

Male

Martoprawiro

2020

Molekul

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“…Indigo is used because of its ties to mythical healing powers. 20 The white pills he received were most likely paracetamol, a cheap, readily available and frequently used medication in this area.…”

Section: Storymentioning

confidence: 99%

A Whole Other Story: Interpreting Narrative Medicine

Salana

Maty

Hage

2021

Glob Adv Health Med

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The practice of conventional medicine is rooted in the ability of a patient to effectively communicate with their physician, and for the physician to comprehend the patient’s story and perceive it through the lens of evidence-based practice. In reality, the differences in environmental backgrounds hinders this exchange of information and prevents a shared understanding and strategy. Narrative medicine provides a framework in which this divide can be bridged by encouraging the clinician to develop an appreciation of cultural nuances that drive a patient’s decision making. The importance of this practice is highlighted with four stories in which the only path to competent patient management was through the utilization of narrative medicine.

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“…The colouring matter in indigo plant leaves is a light yellow substance called indican (1H-indol-3yl b-D-glucoside) ( Figure 1) [71]. Natural indigoid dyes are mainly obtained from woad (Isatis tinctoria L. Brassicaceae, also known as dyer's woad) and the indigo plant (Indigofera tinctoria L) in temperate climates [72].…”

Section: Indigoidmentioning

confidence: 99%

Functional Properties of Natural Dyed Textiles

Pargai¹,

Jahan²,

Gahlot³

2020

Chemistry and Technology of Natural and Synthetic Dyes and Pigments

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Recently, due to harmful effect of climate change and other environmental concerns, the interest towards natural dyes has gained momentum. Presently in this high technological era, only aesthetic appeal of natural dyes could not get full attention of consumers. A consumer is attracted towards a type of product which is not only aesthetic but also have some functional properties. Hence considering this functional aspect, various researches are being carried out to find out the new dimensions of natural dyes. Colours and other functional properties can be achieved by various synthetic agents, but the exploration of new functional properties of natural dyes would be beneficial and relevant for the present as well as for the future. This chapter compiles all functional aspects of natural dyes which are related to adding functional properties such as antimicrobial, UV protection, insect repellent, etc. to textiles which can protect the human being from various kinds of harmful effects of surroundings such as UV radiation, microbes, bacteria and other harmful insects. This chapter will not only deal with available methods for analysis of these functional properties of natural dyes but also explore the reason for functional properties of natural dyes.

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Indigo Dye Derived from Indigofera Tinctoria as Natural Food Colorant

Cited by 22 publications

References 6 publications

DFT Study of Leuco-Indigo and Indigo as Active Material in Dye-Sensitized Solar Cell

DFT Study of Leuco-Indigo and Indigo as Active Material in Dye-Sensitized Solar Cell

A Whole Other Story: Interpreting Narrative Medicine

Functional Properties of Natural Dyed Textiles

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