Anthocyanin
•Apple (Malus Domestica) skin contains a pigment
molecule called "anthocyanin " . It is a water-soluble
pigmen...
apparatus
1 POT.#
# 300 g apple skin (about 17 apple ).
500 ml distilled water.#
# 1 sieve .
# 1 knife .
# 1 container .
#...
procedure
1-slice the apple skin.
2- place the apple skin on the weighing balance.
3- make sure to have 300 g of apple skin .
4- measure 500 ml of distilled...
6- boil the pot over a stove for 5 minutes.
7- turn off the stove and let the mixture cool to
room temperature .
8- pour the solution into the container through
the sieve .
9- now we have the extract 
11- conduct ph test using household products .
Before
After
S u b s t a n c e s p H L e v e l C o l o r A c i d B a s
e
V i n e g a r 2 P i n k (
Orange Juice 3 P a l e R e d (
Tomat...
Natural PH indicator
Natural PH indicator
of 13

Natural PH indicator

extraction of natural PH indicator from Apple
Published on: Mar 3, 2016
Published in: Science      
Source: www.slideshare.net


Transcripts - Natural PH indicator

  • 1. Anthocyanin •Apple (Malus Domestica) skin contains a pigment molecule called "anthocyanin " . It is a water-soluble pigment that may appear red, purple, or blue according to pH. Since apple skin contains anthocyanin that can determine the pH level of a substance, we decided to make an acid-base indicator out of it. By extracting apple skin, and turning it into solution , we can test the pH of a substance.
  • 2. apparatus 1 POT.# # 300 g apple skin (about 17 apple ). 500 ml distilled water.# # 1 sieve . # 1 knife . # 1 container . # weighing balance . # ( test tubes – beaker – droper ).
  • 3. procedure 1-slice the apple skin.
  • 4. 2- place the apple skin on the weighing balance. 3- make sure to have 300 g of apple skin . 4- measure 500 ml of distilled water in the beaker. 5- add 300g of apple skin and 500 ml of distilled water into the pot .
  • 5. 6- boil the pot over a stove for 5 minutes.
  • 6. 7- turn off the stove and let the mixture cool to room temperature .
  • 7. 8- pour the solution into the container through the sieve .
  • 8. 9- now we have the extract 
  • 9. 11- conduct ph test using household products . Before
  • 10. After
  • 11. S u b s t a n c e s p H L e v e l C o l o r A c i d B a s e V i n e g a r 2 P i n k ( Orange Juice 3 P a l e R e d ( Tomato Juice 4 R e d ( M i l k 6 M a r o o n ( P u r e W a t e r 7 D a r k P u r p l e E g g 8 L i m e G r e e n ( Soapy Wate r 1 0 D a r k G r e e n ( A m m o n i a 1 2 G r e e n ( bleach 1 3 Green to Dark Yellow ( Sodium Hydroxide 1 4 G r e e n t o Y e l l o w ( Table 1. Classification of the Substances Used in the Tests

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