Jacoline
Jacoline, jaconine, jacobine, and jacozine, the hepatotoxic alkaloids, are potentially carcinogenic, mutagenic, and teratogenic and may pose health hazards to the human consumer.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to
24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Science. 1977 Feb 4;195(4277):497-9.
Pyrrolizidine alkaloids: their occurrence in honey from tansy ragwort (Senecio jacobaea L.)[Pubmed:
835011]
The hepatotoxic alkaloids known to occur in tansy ragwort (Senecio jacobaea L.) are also present in honey produced from the nectar of this species. These alkaloids, which inclued senecionine, seneciphylline, Jacoline, jaconine, jacobine, and jacozine, are potentially carcinogenic, mutagenic, and teratogenic and may pose health hazards to the human consumer.
J Chem Ecol. 2011 Oct;37(10):1071-80.
The relationship between structurally different pyrrolizidine alkaloids and western flower thrips resistance in F(2) hybrids of Jacobaea vulgaris and Jacobaea aquatica.[Pubmed:
21969251 ]
The J. aquatica genotype was more susceptible to thrips attack than the J. vulgaris genotype, the two F(1) hybrids were as susceptible as J. aquatica, and susceptibility to WFT differed among F(2) hybrid lines: 69 F(2) lines were equally susceptible compared to J. aquatica, 10 F(2) lines were more susceptible than J. aquatica and 15 F(2) lines were as resistant as J. vulgaris or were intermediate to the two parental genotypes.
METHODS AND RESULTS:
Among 37 individual PAs that were derived from four structural groups (senecionine-, jacobine-, erucifoline- and otosenine-like PAs), the N-oxides of jacobine, jaconine, and Jacoline were negatively correlated with feeding damage caused by WFT, and the tertiary amines of jacobine, jaconine, Jacoline, and other PAs did not relate to feeding damage. Total PA concentration was negatively correlated with feeding damage. Among the four PA groups, only the total concentration of the jacobine-like PAs was negatively correlated with feeding damage.
CONCLUSIONS:
Multiple regression tests suggested that jacobine-like PAs play a greater role in WFT resistance than PAs from other structural groups. We found no evidence for synergistic effects of different PAs on WFT resistance. The relationship between PA variation and WFT feeding damage in the Jacobaea hybrids suggests a role for PAs in resistance to generalist insects.
Zhongguo Zhong Yao Za Zhi. 2011 Jan;36(2):166-8.
Pyrrolizidine alkaloids of Senecio cannabifolius var. integrilifolius.[Pubmed:
21506416]
To study the pyrrolizidine alkaloids of Senecio cannabifolius var. integrilifolius.
METHODS AND RESULTS:
Various chromatographic methods were used for the isolation and purification of chemical constitutents of the plant and their structures were elucidated on the basis of spectral analysis.
Four compounds were determinated as jacobine(1), Jacoline(2), jaconine(3), senecicannabine(4).
CONCLUSIONS:
All compounds were isolated from this plant for the first time.
