1. Have an Interesting Snippet to Share : Click Here
    Dismiss Notice
  2. Celebrate Navratri with Shlokas for all 9 Days
    Dismiss Notice
Dismiss Notice
Checkout 15 Sundal Recipes for Navratri
Dismiss Notice
Navaratri Slokas & Mantras Collection - Download Ebook

why does turmeric turn red in lemon?

Discussion in 'Snippets of Life (Non-Fiction)' started by jaanu_2721, Mar 27, 2008.

  1. jaanu_2721

    jaanu_2721 Bronze IL'ite

    Messages:
    359
    Likes Received:
    21
    Trophy Points:
    33
    Gender:
    Female
    why does turmeric turn red in lemon?

    plz give a scientific reason to this question.. its urgent..Drowning
     
    Loading...

  2. meera2503

    meera2503 Senior IL'ite

    Messages:
    400
    Likes Received:
    1
    Trophy Points:
    16
    Gender:
    Female

    HI,

    Can u tell us why???????
     
  3. Sumathy

    Sumathy Senior IL'ite

    Messages:
    137
    Likes Received:
    2
    Trophy Points:
    18
    Gender:
    Female
    Hi,

    Turmeric should turn red in lime and not lemon. Lime is commonly called as 'sunnambu' in tamil and is basic in nature (pH more than 7 is called basic). Turmeric will turn red in basic medium.

    So, What is this 'urgency' about:idontgetit:.

    Cheers,

    Sumathy
     
  4. Shanvy

    Shanvy IL Hall of Fame

    Messages:
    21,099
    Likes Received:
    19,960
    Trophy Points:
    570
    Gender:
    Female
    sumathy,

    Looks like jaanu has some quiz or so mething...there is one more question about ozone hole in atlantic...
     
  5. jaanu_2721

    jaanu_2721 Bronze IL'ite

    Messages:
    359
    Likes Received:
    21
    Trophy Points:
    33
    Gender:
    Female
    s shanvy can u give me detail reason?plzzzzzzzzz?Drowning
     
  6. Nandshyam

    Nandshyam IL Hall of Fame

    Messages:
    5,431
    Likes Received:
    2,117
    Trophy Points:
    340
    Gender:
    Female
    hey jaanu..

    very simple ma.. BTW first thanks for reminding my chemistry quizzes Bow

    Lemon has citric acid. So thus When comes in contact due to the acidic conditions, tumeric changes its color from yellow to red :)

    Do you need further explanation.. let me know...

    Sumathy.. neenga solrathu different.. There are different types of lime, lemon..

    Burnt lime stones are called sunnambhu :)
     
  7. jaanu_2721

    jaanu_2721 Bronze IL'ite

    Messages:
    359
    Likes Received:
    21
    Trophy Points:
    33
    Gender:
    Female
    s i need in detail and reasoning to it also..Drowning
     
  8. Nandshyam

    Nandshyam IL Hall of Fame

    Messages:
    5,431
    Likes Received:
    2,117
    Trophy Points:
    340
    Gender:
    Female
    Ok here you go.. before you drown again ;)



    Turmeric is a reddish-yellow rhizome. Now how did it get these colors? The more prominent yellow color is due to the presence of the xanthophyll pigment, while the reddish-orange color comes from carotene pigment.

    The phytochemicals in Lemon are : Neral, Geranial, Limonene, Nerol, Geraniol, Terpineol, Caryophyllene, Curcumene, Isovalerianic acid, Eupafolin, Hispidulin, Eupatorin, Salvigenin, Apigenin, Luteolin, Geraniol, Flavonoids. There are many active curcumene compounds and when these stems are dried & powdered for our usage, their concentration increases. Now during this experiment, when this powder is dissolved in water and a pinch of lime is added to it, the organic acids are neutralised by alkaline lime. Thus, as a result, the yellow xanthophyll is suppressed and orange-red carotene pigment becomes more prominent. So what you see :) turmeric turning red.

    Hope this helps :)
     
    Last edited: Mar 27, 2008
  9. jaanu_2721

    jaanu_2721 Bronze IL'ite

    Messages:
    359
    Likes Received:
    21
    Trophy Points:
    33
    Gender:
    Female
    thats really helpful nandu :thankyou2:
     
  10. Sumathy

    Sumathy Senior IL'ite

    Messages:
    137
    Likes Received:
    2
    Trophy Points:
    18
    Gender:
    Female
    Hi Nandu,

    Hmm, Some confusion here. Turmeric (actually curcumin) turns red in basic medium and not in acidic medium. This is the basis of the turmeric indicator, is it not? "Turmeric contains a yellow pigment called curcumin that is yellow at pH 7.4 and orange to red at pH 8.6". You can get more information on the net if you google.

    For instance, for arathi, we add turmeric and chunnambu (the edible one) to get red colour. Correct me if am wrong.

    Cheers,

    Sumathy
     

Share This Page