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Key Documents

Altri documenti

52444

Sigma-Aldrich

Violaxanthin

≥90.0% (HPLC)

Sinonimo/i:

(3S,3′S,5R,5′R,6S,6′S)-5,6:5′,6′-Diepoxy-5,5′,6,6′-tetrahydro-β,β-carotene-3,3′-diol

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About This Item

Formula empirica (notazione di Hill):
C40H56O4
Numero CAS:
126-29-4
Peso molecolare:
600.87
Beilstein:
101269
Codice UNSPSC:
12352202
ID PubChem:
329757838
NACRES:
NA.32

Livello qualitativo

100

Saggio

≥90.0% (HPLC)

Forma fisica

solid

λ

in ethanol

Assorbanza UV

λ: 438-442 nm Amax

Temperatura di conservazione

−20°C

Stringa SMILE

CC(/C=C/[C@@]12[C@](C)(O2)C[C@@H](O)CC1(C)C)=C\C=C\C(C)=C\C=C\C=C(C)\C=C\C=C(\C=C\[C@]34C(C)(C)C[C@H](O)C[C@]3(O4)C)C

InChI

1S/C40H56O4/c1-29(17-13-19-31(3)21-23-39-35(5,6)25-33(41)27-37(39,9)43-39)15-11-12-16-30(2)18-14-20-32(4)22-24-40-36(7,8)26-34(42)28-38(40,10)44-40/h11-24,33-34,41-42H,25-28H2,1-10H3/b12-11+,17-13+,18-14+,23-21+,24-22+,29-15+,30-16+,31-19+,32-20+/t33-,34-,37+,38+,39-,40-/m0/s1
SZCBXWMUOPQSOX-WVJDLNGLSA-N

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Descrizione generale

Violaxanthin is an epoxidized carotenoid obtained from plants. It is an orange-colored natural xanthophyll pigment.

Applicazioni

Violaxanthin has been used as a standard/control in high-pressure liquid chromatography (HPLC) analysis of pigment extracts to confirm the high-level astaxanthin accumulation suspected from the visual phenotype of Nt-AXT plants.

Azioni biochim/fisiol

Violaxanthin is a carotene epoxide that is a precursor to capsanthin. It is one of three xanthophylls involved in the evolution of plastids of green plants (oxygen evolution) and participating in photo-induced interconversions known as the violaxanthin cycle. The cleavage of 9-cis-epoxycarotenoids (violaxanthin) to xanthoxin is the key regulatory step of abscisic acid biosynthesis.
Violaxanthin is a powerful antioxidant and a vital precursor to important compounds like fucoxanthin and β-damascenone. It is a non-photochemical fluorescence quenching structural component of the xanthophyll cycle that shields the photosynthetic system from excessive light. The 2,2′-azinobis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS+) radical scavenging action of violaxanthin extracted from water spinach/water morning glory is strong, and it also inhibits lipid peroxidation and red blood cell hemolysis. Hence, it has the potential to be used in a wide range of medicinal and health products.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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Xanthofilla from marigold

Sigma-Aldrich

X6250

Xanthofilla

Chlorophyll b from spinach ≥90% (HPLC), ≤0.5% Chlorophyll a

Sigma-Aldrich

C5878

Chlorophyll b from spinach

β-Carotene synthetic, ≥95% (HPLC), crystalline

Sigma-Aldrich

C4582

β-Carotene

Chlorophyll a from spinach

Sigma-Aldrich

C5753

Chlorophyll a

T Kinoshita et al.
Nature, 414(6864), 656-660 (2001-12-12)
The stomatal pores of higher plants allow for gaseous exchange into and out of leaves. Situated in the epidermis, they are surrounded by a pair of guard cells which control their opening in response to many environmental stimuli, including blue
M Havaux et al.
Proceedings of the National Academy of Sciences of the United States of America, 96(15), 8762-8767 (1999-07-21)
When light energy absorbed by plants becomes excessive relative to the capacity of photosynthesis, the xanthophyll violaxanthin is reversibly deepoxidized to zeaxanthin (violaxanthin cycle). The protective function of this phenomenon was investigated in a mutant of Arabidopsis thaliana, npq1, that
Formation and breakdown of ABA.
Cutler AJ and Krochko JE
Trends in Plant Science, 4, 472-478 (1999)
Feifei Wang et al.
Marine drugs, 16(6) (2018-06-03)
Violaxanthin is a major xanthophyll pigment in the microalga Eustigmatos cf. polyphem, but the amount produced after propagation can vary depending upon culture conditions. In this study, the effects of cultivation time, nitrogen concentration, light intensity, and culture mode on
W Bilger et al.
Photosynthesis research, 25(3), 173-185 (1990-09-01)
The role of the xanthophyll cycle in regulating the energy flow to the PS II reaction centers and therefore in photoprotection was studied by measurements of light-induced absorbance changes, Chl fluorescence, and photosynthetic O2 evolution in sun and shade leaves
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