S.K.H Li Ping Secondary School Group no.: C20 ---------------------------------- Man Ka Yan,...
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![Page 1: S.K.H Li Ping Secondary School Group no.: C20 ---------------------------------- Man Ka Yan, GraceMan Ka Yan, Grace Leung Yu Kiu, PearlLeung Yu Kiu,](https://reader038.fdocuments.net/reader038/viewer/2022102718/56649e675503460f94b62d92/html5/thumbnails/1.jpg)
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S.K.H S.K.H Li PingLi Ping Secondary SchoolSecondary School
Group no.: Group no.: C20C20--------------------------------------------------------------------• Man Ka Yan, GraceMan Ka Yan, Grace• Leung Yu Kiu, PearlLeung Yu Kiu, Pearl• Yuen Yuk Man, AlexYuen Yuk Man, Alex• Yeung Siu Hung, EricYeung Siu Hung, Eric• Kwok Tsz Kin, RyanKwok Tsz Kin, Ryan
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Problem
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Reference books
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Some anti-microbial species
Cinnamon Garlic
Ginkgo Oleander
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Agar test
Objective:Objective:
• To find out which To find out which herbsherbs is the is the bestbest to to inhibitinhibit the growth of the growth of mould.mould.
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Setups: Samples
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No. of day that the mould grows on agar jelly
83
37
24
17
17
0 10 20 30 40 50 60 70 80 90Days
Cinnamon
Garlic
Ginkgo
Oleander
Control
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神龍本草經Shen Long Ben Cao Jing
摘要:菌桂.味辛溫.主百病.養精神和顏色.久服輕身不老.面生光華
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千金翼薰衣濕香方•桂皮 155 克•薰陸香 250 克 •詹糖香 155 克 •藿香各 90克 •甲香 60克
主治:薰衣 ;同時又具解毒止痛消癮疹的作用,可增加皮膚的抗病能力。
民間驗方
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Effective components Effective components
The effective The effective components of components of cinnamon are cinnamon are cinnamic aldehyde & cinnamic aldehyde & cinnamic acidcinnamic acid
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Project Name
CCinnamon
SSubstances
Investigation
剋剋霉霉桂桂
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Extraction Method
•BoilingBoiling
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Extraction Method•Steam DistillationSteam Distillation
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Extraction MethodSolvent:
•95% ethanol
•Rice wine
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Why use ethanol and Rice wine?
Ethanol and Rice wine:Ethanol and Rice wine:• DIY approachDIY approach
• High dissolving power for High dissolving power for
cinnamic aldehyde and acidcinnamic aldehyde and acid
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Results
MethodMethod BoilingBoilingSteam Steam
distillationdistillationSolvent Solvent
Extraction Extraction (Rice wine)(Rice wine)
Solvent Solvent Extraction Extraction
(95% Ethanol)(95% Ethanol)
ColourColourLight
BrownMilky
Light Brown
Brown
OdourOdour Cinnamon smell
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Deduction
• The The effective componentseffective components in in cinnamon have been cinnamon have been extractedextracted
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Chemical Structure VS Chemical Tests
•
Cinnamic Cinnamic acidacid
Cinnamic Cinnamic aldehydealdehyde
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Results
---+-+Pure Cinnamic
Acid
++++++Pure Cinnamic Aldehyde
Tollen reagent2,4-Dinitro-
phenylhydrazineFehlingBromineK2Cr2O7KMnO4
--++-+By Boiling
++++++By Steam Distillation
++++++Rice Wine
++++++In 95% Ethanol
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Results
---+-+Pure Cinnamic
Acid
++++++Pure Cinnamic Aldehyde
Tollen reagent2,4-Dinitro-
phenylhydrazineFehlingBromineK2Cr2O7KMnO4
--++-+By Boiling
++++++By Steam Distillation
++++++In 29% Rice Wine
++++++In 95% Ethanol
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Infrared spectrometry (IR)
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Ultra-violet spectrometry (UV)
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High Pressure Liquid Chromatography (HPLC)
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Objective
• Qualitative:Qualitative: Present or not? Present or not?
• Quantitative:Quantitative: How many? How many?
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Chromatogram of Standard4ppm standard (cinnamic aldehyde and cinnamic acid)4ppm standard (cinnamic aldehyde and cinnamic acid)
Cinnamic acid Cinnamic aldehyde
Retention Time(minutes) 12.668 14.55
Integrated Area(mAUS*a) 278.8512 411.25055
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Samples
FiveFive samples samples were prepared in were prepared in different waydifferent way
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By Boiling
1 2 3
+Water & Boiling
Rotary Ground Cortex
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SampleConc. ofCinnamic
acid, (X10-6M)
Conc. ofCinnamicaldehyde, (X10-6M)
1 Rotary+ Boiling 132.2 117.3
2 Ground+ Boiling 102.7 225.4
3 Cortex + Boiling 67.3 51.2
4 Cortex + Extraction (Rice wine) 37.5 3442
5 Cortex + Extraction (95% Ethanol) 42.5 9720
Conc. ofCinnamic
substances, (X10-6M)
249.5
328.1
118.5
3479.5
9762.5
Conclusion IVariations were
due to their differences in:
•Brand
•Origin
•Treatment
132.2 + 117.3 = 249.5
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By Solvent Extraction
4
5
Cortex
+Rice wine
+
95% Ethanol
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0
10000
1 2 3 4 5
■ Boiling
■ Solvent Extraction
Conclusion IIEffective components are highly dissolved in alcohol
249.5 328.1118.5
3479.5
9762.5
(Sample)
Conclusion III250 x 10-6M
is enough to kill mould !
250
Con
c. O
f C
inna
mic
sub
stan
ces,
(X
10-6M
)
Conclusion IVRice wine is good enough!
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Cinnamon Substances Investigation (CSI)
1. In cinnamon, aldehyde content >> 1. In cinnamon, aldehyde content >> acid contentacid content
2. Aldehyde oxidized to acid2. Aldehyde oxidized to acid
3. Both have strong anti-mould power3. Both have strong anti-mould power
4. Rice wine is a cheap and effective 4. Rice wine is a cheap and effective solvent solvent
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Investigation - Problem A
• Mould grows on silicon sealantMould grows on silicon sealant
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How to make
Cinnamon cortex Honey
wax
Rice wine
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Solution
•Apply anti-mould coatingApply anti-mould coating
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Investigation - Problem B
• Athlete's foot / Disgusting smellAthlete's foot / Disgusting smell
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A homeopathic remedy
Heinerman’s Encyclopedia of Fruits, VegetabHeinerman’s Encyclopedia of Fruits, Vegetables and Herbs, 1998les and Herbs, 1998
“Arresting the fungus among us” http://www.ucsf.edu/today
For athlete’s foot…soaking one’s feet in a lukewarm brew of cinnamon and water to inhibit fungi growth…
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How to make• Painting concentrated cinnamic Painting concentrated cinnamic
extract on cotton shoe insoleextract on cotton shoe insole
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Is it safe?
LD50 ( pure cinnamic acid) for Rats = 2.2g/kg
157kg cinnamon is required to kill a 45kg man
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Be careful
PregnantPregnant
AllergicAllergic
AsthmaAsthma
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Summary
• Just a tip of an icebergJust a tip of an iceberg
• Great potential for future Great potential for future
developmentdevelopment
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End of Presentation
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Some references• Christian, Gary D.; Analytical Chemistry, 5th edition, 1994, J
ohn Wiley & Sons, pg. 112-114, 245-248.• 柯銘清 編 , 中草葯有效成份 --- 理化與葯理特性 , 湖南科學技
術出版社 , pg. 21-22.• 宋小平 , 韓長日 編 , 香料與食品添加劑制造技術 , 科學技術
文獻出版社 , pg. 80-84.• Morrison and Boyd, Organic Chemistry, 3th edition, 1977, Pr
actice-Hall, pg. 186, 634-635, 639-640.• Graham, T.W., Organic Chemistry, 2th edition, 1980, John
Wiley & Sons, p.259, 266, 712, 740.• Skoog, D.A., Holler,F.J., Principles of Instrumental Analysis,
5th edition, 1998, Harcourt Brace & Company Chapter 14, pg.330-331