Results 21 to 30 of about 42,511 (292)
Indigo in the nanochannels of zeolite L : towards a new type of colorant [PDF]
, 2018 A host-guest based colorant was synthesized by intercalating indigo molecules into the nanochannels of zeolite L (ZL). Reductive washing thereby ensured the efficient and selective removal of non-intercalated indigo molecules.
Brühwiler, Dominik +7 more
core +1 more source
Theoretical risk assessment of food colorants approved in China
Zhongguo shipin weisheng zazhi, 2022 ObjectiveTo carry out the theoretical risk assessment for food colorants in the National food safety standard-standards for uses of food additives (GB 2760—2014) by Budget method and deterministic assessment.MethodsBudget method was applied for ...
GE Jianhong +7 more
doaj +1 more source
Foods, 2023 Color is the prime feature directly associated with the consumer’s attraction and choice of their food. The flavor, safety, and nutritional value of any food product are directly associated with the food color.
A. Annam Renita +6 more
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Photochemical colour change for traditional watercolour pigments in low oxygen levels [PDF]
, 2014 An investigation for light exposure on pigments in low-oxygen environments (in the range 0–5% oxygen) was conducted using a purpose-built automated microfadometer for a large sample set including multiple samples of traditional watercolour pigments from ...
Caspers, C +5 more
core +1 more source
Determination of synthetic colorants and natural carmine in wines
OENO One, 1999 Methods were developed for the determination of synthetic colorants and natural carmine (E120) in wines. The synthetic colorants studied were tartrazine (E102), quinoline yellow (E104), sunset yellow (E110), azo ruby (E122), amaranth (E123), ponceau 4R ...
S. Virtanen +2 more
doaj +1 more source
Between coloring and list-coloring: μ-coloring
Electronic Notes in Discrete Mathematics, 2005 A new variation of the coloring problem, μ-coloring, is defined in this paper. A coloring of a graph G = (V,E) is a function f : V → N such that f(v) 6= f(w) if v is adjacent to w. Given a graph G = (V,E) and a function μ : V → N, G is μ-colorable if it admits a coloring f with f(v) ≤ μ(v) for each v ∈ V .
Flavia Bonomo, Mariano Cecowski Palacio
openaire +2 more sources
A brief review on natural dyes, pigments: Recent advances and future perspectives
Results in Chemistry, 2023 Dyes and pigments can make the world beautiful. They are being used since long time and find vide applications in various fields such as food, textile, artifacts and paper industries.
Shailendra Yadav +5 more
doaj +1 more source
Betalains and phenolic compounds of leaves and stems of Alternanthera brasiliana and Alternanthera tenella [PDF]
, 2018 Betacyanins and phenolic compounds from acetonitrile:acidified water extracts of Alternanthera brasiliana and Alternanthera tenella were characterized and quantified using a high-performance liquid chromatography system coupled with diode array and ...
Alvarez, I. +5 more
core +1 more source
Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems, 2015 Although ubiquitous, color pickers have remained largely unchanged for 25 years. Based on contextual interviews with artists and designers, we created the Color Portraits design space to characterize five key color manipulation activities: sampling and tweaking individual colors, manipulating color relationships, combining colors with other elements ...
Jalal, Ghita +2 more
openaire +2 more sources
Química Nova, 2006 Dyes and pigments are additives used in polymers to improve mainly the aesthetic properties of the material. However, the incorporation of these additives can directly affect polymer stability.
Clodoaldo Saron, Maria Isabel Felisberti
doaj +1 more source