Transcript 機能性染料 - New Providence School District

Study of
plant dyes
Koshi high school
Erina Mizutani
Shiori Endo
antibacterial
properties
food
Dyeing cloth with
foods which have
antibacterial
properties.
Test 1
Purpose
onion
umeboshi
azuki beans
grape juice
coffee
honey
Karashi
(mustard)
wasabi
Do you know umeboshi？
traditional
Japanese food
with rice!
Method
5%Alum
onion
grape
PDA
Culture
Plate
P・・・potato
D・・・dextrose
A・・・agar
Result
onion
AP ×
Color ×
umeboshi
AP ○
Color ○
azuki beans
AP ○
Color ○
grape
AP ×
Color ×
coffee
AP ×
Color ×
honey
AP ×
Color ×
karashi
AP ×
Color ×
wasabi
AP ×
Color ×
antibacterial
properties
color
onion
×
×
umeboshi
○
○
azuki beans
○
○
grape
×
×
coffee
×
×
honey
×
×
karashi
×
×
wasabi
○
×
Consideration
We think the antibacterial
properties are involved in the
color change.
Test 2
Purpose
We extracted Umeboshi’s color.
Method
①Mash Umeboshi into a paste.
②Put the samples in
ethanol, methanol, hexane, and
chloroform.
③Shake them.
Umeboshi paste
Result
methanol
Solvent
↓
red
Solvent
↓
yellow
ethanol
Solvent
↓
No
change
hexane
chloroform
Consideration
・Ethanol has a high polarity.
・We can analyze the extracted color
with chromatography.
Summary
①The cloth dyed with Umeboshi, Azuki beans,
and Wasabi have antibacterial properties.
②We think the antibacterial properties are
involved in the color change.
③Ethanol is good at extracting Umeboshi’s
color.
Issues
・We have to analyze umeboshi’s color,
making sure to single out that color, and
reveal a relationship between its color and its
antibacterial properties.
antibacterial
color
properties
・We have to extract and analyze the color
from “red shiso”, and reveal that it also has
antibacterial properties.
We think・・・
The cloths have
antibacterial properties.
germ detector
antibacterial
properties
The cloths don’t have
antibacterial properties.
germ detector
Bibliography
http://jccu.coop/kodomo_lamd/freestudy/kusakizome/
kusa_02.html
「草木染めに挑戦しよう！」
http://slism.jp/calorie/106095/
「カロリーSlism」
http://www.ciaojapan.org/manual_tanekin_kinsibaiyo.
html
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