Isolation of
Lycopene from Watermelon, Tomato and Papaya
Sangeetha.M.T
B.Ed
student, St.Thomas college of teacher education.Pala
Abstract
Lycopene is one of the carotenoid naturally
occurring in red fruits and vegetables, especially watermelon, tomato and
papaya. It is an antioxidant and responsible for red colour of various fruits
and vegetables. This studies to analyses the lycopene content from various
fruits by a very simple process of lycopene isolation. Identification of
lycopene and its chemical structure was done by chemical test. Quantity of
isolated pure lycopene was recorded from papaya tomato and watermelon ranged
from 1.14mg -3.18mg per 100 gm.
Keywords: Lycopene, antioxidant, papaya,
watermelon, tomato.
|
Introduction
Fruits and vegetables are main source of natural
antioxidant components. Antioxidants give protection against harmful free
radicals and reduce rate of cancer and heart disease. The most efficient
carotenoid antioxidant is lycopene. Lycopene is a natural pigment which protects the body by neutralizing the
negative effects of oxidants.
Lycopene a
carotenoid in the same family as carotenoid, is what gives tomatoes, pink grape
fruit, apricots, red oranges, water melons, papaya and guava their red color.
Lycopene is not merely a pigment. It is a powerful antioxidant that has been
shown to neutralize free radicals, especially those derived from oxygen there
by conferring protection against several types of cancer.
Lycopene is a
photochemical, synthesized plants and microorganisms but not by animals. It is
an acyclic isomer of beta-carotene. This highly unsaturated hydrocarbon
contains 11 conjugated double bonds, making it longer than any other
carotenoid. As a polyene, it undergoes cis-trans isomerization induced by light,
thermal energy, and chemical reactions. Lycopene obtained from plants tend to
exit in an all-trans configuration, the most thermodynamically
Comments
Post a Comment