NEET Biology NEET PYQ-Kingdom Monera

  • question_answer
    For retting of jute the fermenting microbe used is: [AIPMT (S) 2005]

    A) Helkobactor pylori

    B) Mcthophilic bacteria

    C) Streptococcus lactin

    D) Butyric acid bacteria

    Correct Answer: D

    Solution :

    [d] Retting is a controlled microbial decomposition of pectin without simultaneous decomposition of fibres. Retting process is used for obtaining fibres from steins of flax, hemp, jute etc. For this purpose stems of fibre yielding plants are immersed in water for Song period where decomposition sets in. Retting is facilitated by anaerobic butyric acid bacteria such as Clostridium botulinwn, Clostridium tetani and Clostridium perfringens. These bacteria primarily decompose the plant pectin thus freeing the fibres. If process of retting continues for a long time then cellulose fermenting bacteria develop and destroy the fibres.


You need to login to perform this action.
You will be redirected in 3 sec spinner