scholarly journals Betanin: A Red-Violet Pigment - Chemistry and Applications

2020 ◽  
Author(s):  
Deepak Devadiga ◽  
T.N. Ahipa
Keyword(s):  
Violet Pigment

scholarly journals The antiproliferative function of violacein-like purple violet pigment (PVP) from an Antarctic Janthinobacterium sp. Ant5-2 in UV-induced 2237 fibrosarcoma

2011 ◽  
Vol 50 (10) ◽  
pp. 1223-1233 ◽  
Author(s):  
Nazia Mojib ◽  
Tahseen H. Nasti ◽  
Dale T. Andersen ◽  
Venkatram R. Attigada ◽  
Richard B. Hoover ◽  
...  
Keyword(s):  
Violet Pigment ◽  
Purple Violet Pigment

A second Micarea with a hypothecial K+ violet pigment

2005 ◽  
Vol 37 (6) ◽  
pp. 477-479 ◽  
Author(s):  
Paweł CZARNOTA ◽  
Brian J. COPPINS
Keyword(s):  
Ancient Woodland ◽  
Violet Pigment ◽  
Deep Violet

Micarea hypoviolascens sp. nov. (Pilocarpaceae) is described from an ancient woodland in western Scotland. It is the second species within Micarea known to have the olivaceous, K+ deep violet pigment (Sedifolia-grey) in the hypothecium.

Spray drying of violet pigment from Chromobacterium violaceum UTM 5 and its application in food model systems

2015 ◽  
Vol 102 ◽  
pp. 324-329 ◽  
Author(s):  
Chidambaram Kulandaisamy Venil ◽  
Claira Arul Aruldass ◽  
Mohd Hazerin Abd Halim ◽  
Ali Reza Khasim ◽  
Zainul Akmar Zakaria ◽  
...  
Keyword(s):  
Spray Drying ◽  
Chromobacterium Violaceum ◽  
Model Systems ◽  
Violet Pigment ◽  
Food Model

Natural Infections of Gibbons with a Bacterium Producing Violet Pigment (Chromobacterium violaceum)

1969 ◽  
Vol 120 (5) ◽  
pp. 605-610 ◽  
Author(s):  
M. G. Groves ◽  
J. M. Strauss ◽  
J. Abbas ◽  
C. E. Davis
Keyword(s):  
Chromobacterium Violaceum ◽  
Violet Pigment

Determination of the structure of the violet pigment C22H12Cl2N6O4 from a non-indexed X-ray powder diagram

2005 ◽  
Vol 61 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Martin U. Schmidt ◽  
Martin Ermrich ◽  
Robert E. Dinnebier
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Lattice Energy ◽  
Frankfurt Am Main ◽  
Rietveld Refinements ◽  
X Ray ◽  
Space Groups ◽  
Violet Pigment

The violet pigment methylbenzimidazolonodioxazine, C22H12Cl2N6O4 (systematic name: 6,14-dichloro-3,11-dimethyl-1,3,9,11-tetrahydro-5,13-dioxa-7,15-diazadiimidazo-[4,5-b:4′,5′-m]pentacene-2,10-dione), shows an X-ray powder diagram consisting of only ca 12 broad peaks. Indexing was not possible. The structure was solved by global lattice energy minimizations. The program CRYSCA [Schmidt & Kalkhof (1999), CRYSCA. Clariant GmbH, Pigments Research, Frankfurt am Main, Germany] was used to predict the possible crystal structures in different space groups. By comparing simulated and experimental powder diagrams, the correct structure was identified among the predicted structures. Owing to the low quality of the experimental powder diagram the Rietveld refinements gave no distinctive results and it was difficult to prove the correctness of the crystal structure. Finally, the structure was confirmed to be correct by refining the crystal structure of an isostructural mixed crystal having a better X-ray powder diagram. The compound crystallizes in P\bar 1, Z = 1. The crystal structure consists of a very dense packing of molecules, which are connected by hydrogen bridges of the type N—H...O=C. This packing explains the observed insolubility. The work shows that crystal structures of molecular compounds may be solved by lattice energy minimization from diffraction data of limited quality, even when indexing is not possible.

scholarly journals The relationship between the violet pigment PP-V production and intracellular ammonium level in Penicillium purpurogenum

AMB Express ◽  
2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ryo Kojima ◽  
Teppei Arai ◽  
Hiroshi Matsufuji ◽  
Takafumi Kasumi ◽  
Taisuke Watanabe ◽  
...  
Keyword(s):  
Penicillium Purpurogenum ◽  
Violet Pigment ◽  
Ammonium Level ◽  
The Relationship
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