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1.广西中医药大学,南宁 530200;
2.钦州市中医药研究所,广西 钦州 535000
Published:20 November 2019,
Published Online:08 August 2019,
Received:27 March 2019,
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Zi-shu CHAI, Ren-yuan LIU, Li-zhang LI, et al. Chemical Constitutes of Cardiac Glycosides in
Zi-shu CHAI, Ren-yuan LIU, Li-zhang LI, et al. Chemical Constitutes of Cardiac Glycosides in
目的:
2
建立超高效液相色谱-飞行时间质谱联用技术(UPLC-Q-TOF-MS/MS)的红花寄生及其寄主夹竹桃强心苷成分鉴定方法,以桂花树寄主的红花寄生及其寄主桂花树样品为对照,通过与强心苷对照品或文献报道比对,鉴定其中的强心苷化学成分,分析红花寄生及其寄主夹竹桃强心苷成分的相关性,并且评价寄主对桑寄生药材质量影响。
方法:
2
采集红花寄生及其寄主夹竹桃样品,用桂花寄主及其红花寄生为对照样品,样品用70%乙醇超声提取。采用ACQUITY UPLC HSS T3 C
18
色谱柱(2.1 mm×100 mm,1.8 μm),以流动相0.1%甲酸水-乙腈梯度洗脱,流速0.6 mL·min
-1
,柱温40 ℃,进样量0.5 μL。以 Masslynx4.1软件分析数据,根据正、负离子模式质谱数据及元素组成分析,结合强心苷对照品和相关文献,对红花寄生及其寄主夹竹桃强心苷成分进行鉴定,并分析各成分之间的相关性。
结果:
2
共鉴定出26个强心苷成分,其中夹竹桃寄主鉴定出强心苷成分25个,夹竹桃寄主的红花寄生鉴定出强心苷成分5个,桂花寄主及其红花寄生没有强心苷。
结论:
2
UPLC-Q-TOF-MS/MS技术能快速、准确、全面地鉴定夹竹桃及其红花寄生强心苷成分,红花寄生本身不含强心苷,其强心苷为来自其寄主夹竹桃。
Objective:
2
To establish a method for identifying cardiac glycosides in
Scurrula parasitica
and its
Nerium indicum
host by UPLC-Q-TOF-MS/MS. With safflower parasitoids with sweet-scented osmanthus trees as the host and their host osmanthus tree samples used for control
the chemical constituents of the cardiac glycosides were identified by comparison between the cardiac glycoside reference substances and literatures
so as to analyze the correlation between the safflower parasitoid and its host oleander glycoside components
and evaluate the host's impact on the quality of Taxilli Herba.
Method:
2
Samples of
S
.
parasitica
(parasitic on
N
.
indicum
and
Osmanthus fragrans
)
N
.
indicum
and
O
.
fragrans
were collected. Samples of
S
.
parasitica
and its
O
.
fragrans
host were taken for control. All of the samples were extracted through ultrasonic extraction with 70%ethanol. ACQUITY UPLC HSS T3 C
18
(2.1 mm×100 mm
1.8 μm) column was adopted with mobile phase A comprising 0.1%formic acid water and mobile phase B comprising acetonitrile for gradient elution. The sample size was 0.5 μL. The flow rate was 0.6 mL·min
-1
. The column temperature was maintained at 40 ℃. MassLynx V4.1 software was used to analyze the data. Identification and correlation of chemical constitute of cardiac glycosides in
S
.
parasitica
and its
N
.
indicum
host were performed through analysis on cardiac glycosides reference substances
relevant literatures
elemental composition of compounds and positive and negative ion mode mass spectrometry data.
Result:
2
A total of 26 compounds of cardiac glycoside were identified
including 25 compounds of cardiac glycoside from
N
.
indicum
host
and 5 compounds of cardiac glycoside from
S
.
parasitic
(parasitic on
N
.
indicum
). none of cardiac glycosides were found in
S
.
parasitica
(parasitic on
O
.
fragrans
) and its
O
.
fragrans
host.
Conclusion:
2
It was rapid
accurate and comprehensive to identify cardiac glycosides in
S
.
parasitica
(parasitic on
N
.
indicum
) and its
N
.
indicum
host by UPLC-Q-TOF-MS/MS.
S
.
parasitica
itself does not contain cardiac glycosides
its host may impact the quality of
S
.
parasitica
by delivering cardiac glycosides
a kind of its characteristic compound.
红花寄生夹竹桃强心苷寄主岩桂
Scurrula parasiticaNerium ndicumcardiac glycosidehostOsmanthus fragrans
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