Write a short note on ‘lac culture’.
a. Lac is a pink coloured resin which hardens on coming in contact with air forming lac.
b. Tacchardia lacca is most commonly used for lac culture.
c. Lac insects feed on succulent twigs of certain plants like Ber, peeple, palas, kusum, babool, etc.
d. Natural lac is always contaminated, so washing and filtering is needed to obtain shellac in pure form.
e. India contributes upto 85% of total lac production in world.
f. Lac is the byproduct of lac culture which is used in bangles, toys, woodwork, polish inks, silvering mirrors etc.