免费文献传递   相关文献

红姜叶提取物所含化学成分的抗肿瘤及抗菌作用(英文)



全 文 :Open Access开放获取 Submission Guide投稿指南
DOI:10.3736/jcim20121219
http://www.jcimjournal.com
Arul Raj C,Sophia D,Ragavendran P,Starlin T,Rathi
MA,Gopalakrishnan VK.Leaf extract of Alpiniapurpurata
(Vieil.)K.Schum screened for its phytochemical constituents
and antibacterial and anticancer activities.J Chin Integr
Med.2012;10(12):1460-1464.
Arul Raj C,Sophia D,Ragavendran P,Starlin T,Rathi
MA,Gopalakrishnan VK.红姜叶提取物所含化学成分的抗
肿瘤及抗菌作用.中西医结合学报.2012;10(12):1460-
1464.
Received May 19,2012;accepted July 3,2012;published
online December 15,2012.
Ful-text LinkOut at PubMed.Journal title in PubMed:
Zhong Xi Yi Jie He Xue Bao.
Correspondence:Veliyur Kanniappan Gopalakrishnan,PhD,
Professor;Tel:+91-0422-6471113;E-mail:vkgopalakrishnan
@gmail.com
Journal of Chinese Integrative Medicine(JCIM)or Zhong Xi
Yi Jie He Xue Bao is an international,peer-reviewed,
open-access journal for the study of complementary and
alternative medicine or integrative medicine from al regions
of the world.JCIMis indexed in PubMed and Directory of
Open Access Journals(DOAJ).JCIMis a member journal
of CrossRef.Articles published in JCIM have maximum
exposure to the international scholarly community.
Submit your manuscript here:
http://mc03.manuscriptcentral.com/jcim-en(for manuscripts
written in English)
http://mc03.manuscriptcentral.com/jcim-cn(for manuscripts
written in Chinese)
● No submission and page charges for manuscripts written in
English
● Quick decision and rapid publication
Send your postal address by e-mail to jcim@163.com,we
wil send you a complimentary print issue upon receipt.
ISSN 1672-1977.Published by JCIM Press,Shanghai,China.
                         Original Experimental Research 实验论著 
Leaf extract of Alpinia purpurata(Vieil.)K.Schum screened
for its phytochemical constituents and antibacterial and
anticancer activities
Chinthamony Arul Raj 1,Dominic Sophia1,Paramasivam Ragavendran1,Thangarajan Starlin2,
Muthian Ahaliya Rathi 3,Veliyur Kanniappan Gopalakrishnan1,2
1.Department of Biochemistry,Karpagam University,Coimbatore 641021,Tamilnadu,India
2.Department of Bioinformatics,Karpagam University,Coimbatore 641021,Tamilnadu,India
3.Department of Biochemistry,Sree Narayana Guru Colege,Coimbatore 641105,Tamilnadu,India
OBJECTIVE:The study was formulated with the objective to assess phytochemical constituents,
antibacterial activity and anticancer activity of Alpinia purpurata.
METHODS:The leaves of A.purpurata were washed thoroughly by tap water,shade dried and
powdered.The plant powder was extracted with successive solvent system.Phytochemical
constituents were evaluated,antibacterial activity was carried out by disc difusion method and
anticancer activity of the ethyl acetate leaf extract was evaluated by using3-(4,5 dimethylthiazol-
2-yl)-2,5-diphenyltetrazolium bromide assay.
RESULTS:The ethyl acetate extract of A.purpurata showed most of the phytochemicals.The
extract exhibited antibacterial activity with a zone of inhibition from5 to 14 mm at various con-
centrations and the extract showed potential anticancer activity against PA1 ovarian cancer cel
line at the 48 h with half maximal inhibitory concentration value of 110.25μg/mL and exhibited
a dose-dependent decrease in cel count for al the concentrations tested.
CONCLUSION:The present study scientificaly proved that ethyl acetate leaf extract of A.
purpuratais a good source of phytocontituents,showing antibacterial and anticancer activities.
KEYWORDS:Alpinia;plant extracts;antibacterial agents;antineoplastic agents;in vitro
 Plants stil constitute one of the major sources of
drugs in modern as wel as traditional medicine
throughout the world[1].Plants belonging to Zin-
giberaceae(Ginger family)are known for a number of
medicinal properties[2].A spectrum of essential
oils is present in the members of Zingiberaceae[3].
Rhizome extracts of some members of the medicinal
Zingiberales are widely used in dietary intake as
·0641· 中西医结合学报2012年12月第10卷第12期 Journal of Chinese Integrative Medicine,December 2012,Vol.10,No.12
wel as in traditional systems of medicine[4].Alpinia
is the largest genus in ginger family in which A.
purpurata (Vieil.)K.Schum is a very popular
garden plant in India[5].The rhizome has sharp
odour,which could improve appetite,taste and
voice.It is also used for headache,rheumatism,
sore throat and renal disease[6].Phytochemical
studies on A.purpurata revealed that it possesses
flavonoids,rutin, kaempferol-3-rutinoside and
kaempferol-3-oliucronide[7].One of the major biological
properties of flavonoids is their antimicrobial activity
and their main role in plants is to act as protective
compounds against diseases caused by microorganisms
such as fungi,bacteria and viruses[8].
Related Articles推荐阅读
孙明瑜,左剑,段继峰,韩军,范士明,张炜,朱丽芳,姚明辉.苦参总黄酮体内外抗肿瘤作用实验研究.中西医结合学
报.2008;6(1):51-59.
Sun MY,Zuo J,Duan JF,Han J,Fan SM,Zhang W,Zhu LF,Yao MH.Antitumor activities of kushen flavonoids in vivo
and in vitro.J Chin Integr Med.2008;6(1):51-59.
Free ful text available at http://www.jcimjournal.com/FulText2.aspx?articleID=167219772008010051
尹剑云,陈红风.淫羊藿及其有效成分抗肿瘤机制的研究进展.中西医结合学报.2009;7(12):1184-1187.
Yin JY,Chen HF.Research advances in the mechanisms of antitumor activity of Epimedium brevicornum Maxim.and its
effective components.J Chin Integr Med.2009;7(12):1184-1187.
Free ful text available at http://www.jcimjournal.com/FulText2.aspx?articleID=3736/jcim20091218
More free related articles at http://www.jcimjournal.com/FulText2.aspx?articleID=jcim20121219
 Ovarian cancer is the fourth leading cause of
cancer death and the most frequent cause of death
from gynaecological malignancy[9].The annual
worldwide incidence of ovarian cancer exceeds 140
000.Ovarian cancer rates vary enormously be-
tween countries and appears to relate to their
respective reproductive patterns[10].
 Many chemotherapeutic drugs eliminate cancer
cels by inducing ageneticaly programmed form of
cel death[1].It is therefore important to establish the
chemopreventive efficacy of the plant by evaluating
anticancer and apoptosis induction in cancer cel
lines before whole animal studies or clinical trials
begin.Therefore,the main objectives of this study
were to screen the ethyl acetate leaf extract of A.
purpurata for its phytochemical constituents,an-
tibacterial activity and anticancer activity against
the human ovarian cancer cel line(PA1).
1 Materials and methods
1.1 Plant material colection and extraction A.
purpurata was colected from Kanyakumari,
Tamilnadu,India.The plant specimen was authenticated
by Dr.G.V.S.Murthy,Botanical Survey of India,
Coimbatore,India.A voucher specimen was deposited
in the laboratory for future reference(BSI/SC/5/
23/10-11/Tech).The voucher specimen was deposited
at the herbarium of Karpagam University,Coimbatore,
India.The leaves of A.purpurata were washed
thoroughly in tap water,shade dried and powdered.
The plant powder was extracted with successive
solvent system,petroleum ether,chloroform,ethyl
acetate,ethanol and water.Totaly 100g of plant
powder was extracted in 500mL of corresponding
solvents for 24hwith occasional shaking at room
temperature.The supernatant was colected and e-
vaporated to make final volume,one fifth of the
original volume.It was stored at 4℃in air-tight
bottles for further studies.The dried extract thus
obtained was used directly for various assays.
1.2 Phytochemical analysis Preliminary phyto-
chemical screening of A.purpurata crude extract
was estimated according to the method adopted by
Paech et al[11].We took 1g of each respective extracts
separately and dissolved in 15mL of corresponding
solvents,then carried out the estimations.
1.3 Antibacterial activity Diferent amounts(5,10,
15and 20mg)of ethyl acetate leaf extract of A.pur-
purata were taken and diluted with 2mL of dime-
thyl suphoxide(DMSO).The organisms used for
the study are Bacillus cereus,Staphylococcus au-
reus,Escherichia coli,Klebsiella pneumoniae and
Salmonella paratyphi.The antibacterial activity test
was done by disc difusion method[12].The sterile
discs were dipped in different concentration of the
extracts and kept to dryness for 2min,then the
discs were placed over the swabbed nutrient agar
media in the petri plates using flamed forceps,and
the discs were gently pressed down to ensure complete
contact of the disc with the agar surface.The
plates were incubated at 37 ℃for 24hand the
inhibition zones were measured.Novomycin (20
μg per disc)was used as a reference standard.DM-
SO was used as a negative control.The American type
culture colection and the microbial type culture colec-
tion bacterial strains were obtained from the Depart-
ment of Microbiology,Karpagam University,Coim-
batore,India.
1.4 Anticancer activity against PA1ovarian cancer cel line
1.4.1 Maintenance of the cel line Human Ovarian
Cancer cel line(PA1)was purchased from the Na-
tional Center for Cel Sciences,Pune,India.The
cels were maintained in T-75cm2 tissue culture flask
with  complete  media, namely, Dulbeccos
modified Eagles medium (DMEM )and 10%fetal
·1641·中西医结合学报2012年12月第10卷第12期 Journal of Chinese Integrative Medicine,December 2012,Vol.10,No.12
bovine serum (FBS),with antibiotics and alowed
to become 80%confluent.When the cels grew to
confluency,the medium was removed and washed
once with phosphate bufered saline(PBS).Trypsin
(0.25%)-ethylene diamine tetraacetic acid solution
was added and the cels were incubated for 3to
5min at 37 oC.Fresh medium (with serum)was
added and cels were gently dispersed by apipette.A
known number of 1 000cels were dispersed into
new flasks or micro litre plates for further experi-
ment.The cels were incubated at 37 oC and 5%CO2
atmosphere.
1.4.2 Cel proliferation assay Cel growth inhibition
was determined by MTT assay[13].MTT (3-(4,5
dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide)
assay is a simple nonradioactive colorimetric assay
to measure cel cytotoxicity,proliferation or viability.
Cels were seeded on 96-wel plates(5 000cels per
wel)and cultured for a day and then treated with
diferent concentrations of ethyl acetate leaf extract of
A.purpuratafor 12,24,48and 72hat 37 oC in
5%CO2.Control cels were incubated on the medi-
um in 96-wel plates.At the end of the incubation,
medium was removed and MTT (5mg/mL)was
added and the cels were further incubated for 4haf-
ter the media were removed.DMSO was added in
each wel to solubilize the formazan crystals.The
absorbance was read at a wave length of 595nm u-
sing a microtitre enzyme-linked immunosorbent as-
say plate reader.Experiments for extract were car-
ried out in triplicate including untreated cel control
and blank cel-free control.Cel viability was expressed
as percentage over the control.
1.5 Stastistical analysis SPSS 10.0software was
used for statistical analysis.The results(mean±
standard deviation)of cel proliferation and invasion
were subjected to statistical analysis by Students
t-test to compare with the standard drug.The level
of significance was set at P < 0.05. Al
experiments were repeated twice using triplicates
of sample.
2 Results
2.1 Phytochemical screening The ethyl acetate
leaf extracts of A.purpurata were screened for its
phytochemical constituents.The ethyl acetate leaf
extracts of A.purpurata showed the presence of
most of the secondary metabolites from the five
solvents checked.See Table 1.
2.2 Antibacterial activity Antibacterial activity
was checked with ethyl acetate leaf extract of A.
purpurataagainst five bacteria.Of the five organisms,
S.aureus and K.pneumoniashowed 9mm zone of
inhibition at a very smal concentration (5mg/mL).
This was folowed by other organisms evaluated.
See Table 2.
2.3 Anticancer activity against ovarian cancer cel line
 The cels were incubated for 48hwith A.purpurata
at different concentrations.Cel viability results
were compared with a known anticancer drug,cis-
platin at same concentration and time.There is no
statistical significance between plant extract and o-
varian cancer drug cisplatin.Half maximal inhibi-
tory concentration(IC50)value for cisplatin and A.
purpuratashowed 52.32and 110.25μg/mL,respec-
tively.See Figure 1.
3 Discussion
 Herbal products prepared either from single or
multiple botanical ingredients are usualy complex
and variable in nature.Undoubtedly,the plant
kingdom stil holds many species of plants containing
substances of medicinal value that have yet to be
discovered.For these reason,A.purpurata (Vieil.)
K.Schum,a medicinal plant belonging to family
Zingeberaceae,was selected for the present study.
Table 1 Phytochemical screening of leaf extract of A.purpurata
Extract  AL  SA  TP  FL  ST  CG  OF  TN  AP  CH
Petroleum ether + - + + - + - + - -
Chloroform + + + - - + - + + +
Ethyl acetate + - + + + + + + + +
Ethanol + - + + - + - + - +
Water + - + + - + - - + +
  +"means present;-"means absent.AL:alkaloids;SA:saponin;TP:tannin and phenolic compounds;FL:flavonoids;ST:steroids;
CG:cardioglycosides;OF:oils and fats;TN:terpenoids;AP:aminoacids and proteins;CH:carbohydrates.
Table 2 Antibacterial activity of ethyl acetate leaf extract of A.purpurata against different species of bacteria
Tested organism
Antibiotic
(Novomycin)
Negative
control(DMSO)
A.purpurata
(2.5mg/mL ) (5mg/mL ) (7.5mg/mL ) (10mg/mL)
B.cereus (MTCC 441 ) 20mm - 7mm  9mm  11mm  12mm
S.aureus (MTCC 96 ) 21mm - 9mm  11mm  12mm  14mm
E.coli (ATCC 25922 ) 20mm - 5mm  7mm  8mm  10mm
K.pneumoniae (MTCC 530 ) 23mm - 9mm  10mm  12mm  14mm
S.paratyphi (MTCC 734 ) 23mm - N/A  N/A  6mm  9mm
  Data are presented as mean measurement of inhibition zone(mm).DMSO:dimethyl suphoxide;MTCC:microbial type culture colection;
ATCC:American type culture colection;N/A:no activity or no zone of inhibition.
·2641· 中西医结合学报2012年12月第10卷第12期 Journal of Chinese Integrative Medicine,December 2012,Vol.10,No.12
Figure 1 Cel viability of PA1ovarian cancer cel line
incubated with A.purpurata for 48htested by MTT assay
Data are presented as mean±standard deviation,n=3.Cels were
treated with different concentrations of ethyl acetate leaf extract of
A.purpurata at 48h.Viability was quantitated by MTT assay.
MTT:3-(4,5dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide.
 Phytochemical screening helps to reveal the
chemical nature of the constituents of the plant ex-
tract and the one that predominates over the oth-
ers.It may also be used to search for bioactive a-
gents that could be used in the synthesis of very
useful drugs[14,15].The phytochemical screening
showed the presence of maximum secondary metabolites in
ethyl acetate extract of A.purpurata,althought phy-
tochemical screening of rhizome of A.purpuratasug-
gested that most of the phytochemicals in the crude
extract of rhizomes are eluted in ethanol extract like
carbohydrate,tannins,resins,proteins,alkaloids,fla-
vonoids glycosides,phenols and saponins[16].
 Bacterial and fungal infections are widespread
throughout the world.The situation is more critical
especialy in the third-world countries.In most ca-
ses,lack of adequate sanitation and primary health-
care programs makes it dificult and expensive to com-
bat diseases.A number of higher plants have been
used for centuries as remedies for human diseases.
This has encouraged scientists to screen higher
plants for various biological activities including an-
tibacterial and antifungal effect[17,18].About 40%
of pharmaceuticals are derived from natural sources
(plants,animals,bacteria and fungi).Moreover,
several natural products obtained from medicinal
plants lead to the development of various pharmaceu-
ticals and analogues or derivatives.Recently,focus
on plant research has increased and a large body of
evidence has been colected to show immense po-
tential of medicinal plants used in various tradition-
al systems[19].
 The result obtained in the present study revealed
that A.purpurata possesses potential antibacterial
activity against al the five tested bacterial organisms
(B.cereus,S.aureus,E.coli,K.pneumonia and
S.paratyphi).A.purpuratashowed a broad spectrum
of activity against al the bacterial strains at the
tested concentrations of 5to 20mg/mL disc.Novomycin
was used as the control and DMSO was used as the
negative control.It is reported that antibacterial ac-
tivity was checked by preparing sample dissolving
with DMSO and using DMSO as a negative control,
that there was no formation of zone in the negative
control[20].Except S.paratyphi al the four remaining
organisms showed a zone of inhibition at 5μg per
disc concentration.A.purpurata showed antibac-
terial activity against S.paratyphi at concentra-
tions of 15and 20mg per disc.A.purpurata ex-
hibited greater zone of inhibition for S.aureus and
K.pneumonia (9mm)in a 5mg/mL concentra-
tion.This was folowed by B.cereus and E.coli.
It was reported that A.purpurata oil may be re-
garded as active against most of the bacterial strains
tested with the exception of Proteus species,which
grew even at the highest concentration of oil as-
sayed (1 000 g/mL). The lowest minimal
inhibitory concentration(MIC)values were recor-
ded for the gram-positive species,indeed some S.au-
reus,oxacilin-resistant S.aureus strains were highly
susceptible to A.purpurata oil with MIC values
<10g/mL.In contrast,the MIC values for gram-
negative species were typicaly around 1 000g/
mL[21].The antimicrobial activity of plant extracts
has been screened because of their great medicinal
relevance.In recent years,infections have in-
creased to a great extent and resistance against an-
tibiotics has become an ever increasing therapeutic
problem.
 It was reported that plant-derived extracts con-
taining antioxidant principle showed cytotoxicity
toward tumor cels[22].The in vitro screening of
the ethyl acetate extract of A.purpurata showed
potential anticancer activity against the ovarian
cancer cels.Cel viability results were compared
with a known anticancer drug,cisplatin at same
concentration and time.Cisplatin is a most efective
and widely used chemotherapeutic agent against
human cancers[23],including ovarian cancer.IC50
value for cisplatin and A.purpurata showed 52.32
and 110.25μg/mL,respectively.
 The results obtained from the present study revealed
that,the ethyl acetate extract of A.purpurata showed
the presence of most of the secondary metabolites
in the plant leaves.The plant possesses moderate
antibacterial and anticancer activities,which may
be due to the presence of secondary metabolites in
the leaves of A.purpurata.We hope that intensive
study on the outcoming active constituents of A.
purpurata wil lead to the discovery of a novel
botanical drug for chemoprevention.
4 Acknowledgements
 The authors are thankful to our Chancelor,Ad-
visor,Vice Chancelor and Registrar of Karpagam Uni-
versity for providing facilities and encouragement.
5 Competing interests
 The authors declare that they have no competing in-
terests.
REFERENCES
1 Arul Raj C,Ragavendran P,Sophia D,Rathi MA,
Gopalakrishnan VK.Evaluation of in vitro antioxidant
and anticanceractivity of Alpiniapurpurata.Chin J Nat
·3641·中西医结合学报2012年12月第10卷第12期 Journal of Chinese Integrative Medicine,December 2012,Vol.10,No.12
Med.2012;10(4):263-268.
2 Kumar VP,Chauhan NS,Padh H,Rajani M.Search
for antibacterial and antifungal agents from selected Indian
medicinal plants.J Ethnopharmacol.2006;107(2):
182-188.
3 Zakaria MB.Essential oils from three Malaysian Zingiberaceae
species.Malays J Sci.1987;9:73-76.
4 Ibrahim H,Khalid N,Hussin K.Cultivated gingers of
peninsular Malaysia:utilization,profiles and micropropaga-
tion.Gard Bul (Singapore).2007;59(1-2):71-88.
5 Sabu M.Zingiberaceae and Costaceae of south India.
Kerala:Indian Association for Angiosperm Taxonomy,
Calicut University.2006:68-70.
6 Prajapathi ND,Purohit SS,Sharma AK,Kumar T.A
handbook of medicinal plants.A complete source book.
New Delhi:Agrobios India.2004:35.
7 Victrio CP,Kuster RM,Lage CLS.Detection of flavonoids
in Alpinia purpurata (Vieil.)K.Schum.leaves using
high-performance liquid chromatography.Rev Bras Plant
Med.2009;11(2):147-153.
8 Wang Y,Hamburger M,Gueho J,Hostettemann K.
Antimicrobial flavonoids from Psiadiatrinervia and
their methylated and acetylated derivatives.Phytochem.
1989;28(9):2323-2327.
9 Greene MH,Clark JW,Blayney DW.The epidemiology
of ovarian cancer.Semin Oncol.1984;11(3):209-226.
10 Byrom J,Davies Q.Cancer of the ovary.Curr Obstet
Gynecol.2003;13(2):88-94.
11 Paech K,Tracey MV.Modern methods of plant analysis.
4th ed.Berlin:Springer-Verlog.1955:371-373.
12 Grove DC,Randal WA.Assay methods of antibiotics:
a laboratory manual.New York:Interscience Publishers
Inc.1955:24-55.
13 Mosmann T.Rapid colorimetric assay for celular growth
and survival:application to proliferation and cytotoxicity
assays.J Immunol Methods.1983;65(1-2):55-63.
14 Yakubu MT,Akanji MA,Oladiji AT.Aphrodisiac potentials
of the aqueous extract of Fadogia agrestis (Schweinf.
Ex Hiern)stem in male albino rats.Asian J Androl.
2005;7(4):399-404.
15 Okoli RI,Turay AA,Mensah JK,Aigbe AO.Phyto-
chemical and antimicrobial properties of four herbs from
Edo State,Nigeria.Rep Opin.2009;1(5):67-73.
16 Subramanian V,Suja S.Phytochemical screening of
Alpinia purpurata (Vieil).Res J Pharm Biol Chem
Sci.2011;2(3):866-871.
17 Omer ME,Elnima EI.Antimicrobial activity of Ximenia
americana.Fitoterapia.2003;74(1-2):122-126.
18 Saadabi AMA,Ayoub SMH.Comparative bioactivity of
Hydnora abyssinica A.Braun against different groups of
fungi and bacteria.J Med Plant Res.2009;3(4):262-265.
19 University of Maryland Medical Center.Possible interactions
with:Devils Claw.(2007-01-18)[2012-04-03].http://
www.umm.edu/altmed/articles/devils-claw-000892.htm.
20 Mobinikhaledi A,Faghihi S,Abnusi MH,Shariatzadeh
SM.Synthesis and antibacterial activity of some 2-(benzo
[d]thiazol-2-ylamino)-5-(arylidene)thiazol-4(5H)-ones
Ind J Pharm Educ Res.2012;46(1):69-72.
21 SantosGKN DutraKA BarrosRA daCmaraCAG,
Lira DD,Gusmo NB,Navarro DMAF.Essential oils
from Alpinia purpurata (Zingiberaceae):chemical
composition,oviposition deterrence,larvicidal and anti-
bacterial activity.India Crops Prod.2012;40:254-260.
22 Gordon MH.The mechanism of the antioxidant action
in vitro.In:Hudson BJF.Food antioxidants.London:
Elsevier.1990:1-18.
23 Thirunavukkarasu C,Singh JP,Selvendiran K,Sakthisekaran
D.Chemopreventive efficacy of selenium against N-
nitrosodiethylamine-induced hepatoma in albino rats.
Cel Biochem Funct.2001;19(4):265-271.
红姜叶提取物所含化学成分的抗肿瘤及抗菌作用
Chinthamony Arul Raj 1,Dominic Sophia1,Paramasivam Ragavendran1,Thangarajan Starlin2,Muthian Ahaliya
Rathi 3,Veliyur Kanniappan Gopalakrishnan1,2
1.Department of Biochemistry,Karpagam University,Coimbatore 641021,Tamilnadu,India
2.Department of Bioinformatics,Karpagam University,Coimbatore 641021,Tamilnadu,India
3.Department of Biochemistry,Sree Narayana Guru Colege,Coimbatore 641105,Tamilnadu,India
目的:研究红姜叶提取物中的化学成分的抗肿瘤及抗菌活性。
方法:用自来水充分洗净红姜叶,晾干后制成粉剂,用连续溶剂系统提取其化学成分。对植物化学成分进行评估,运用
纸片扩散法检测植物提取物的抗菌活性,利用四甲基偶氮唑盐比色法检测植物叶子的乙酸乙酯提取物的抗肿瘤作用。
结果:红姜叶经乙酸乙酯提取后,能最大限度得到有效的植物化学成分。不同浓度的红姜叶植物提取物抑制
细菌的区域为5~14mm;并且在48h内、植物提取物半数抑制浓度为110.25μg/mL时表现出抗PA1卵巢
癌细胞株活性,且细胞数量呈剂量依赖性递减。
结论:红姜叶的乙酸乙酯提取物中的化学成分可有效抑制细菌活性,并具有抗肿瘤的作用。
关键词:山姜属;植物提取物;抗菌药;抗肿瘤药;体外研究
·4641· 中西医结合学报2012年12月第10卷第12期 Journal of Chinese Integrative Medicine,December 2012,Vol.10,No.12
, , ,