Volume No. 10 Issue No.: 3 Page No.: 541-545 Jan-Mar 2016

 

RECOVERY OF BIOACTIVE COMPOUNDS FROM TOMATO WASTES - CONVENTIONAL VS. EMERGING TECHNOLOGIES : A REVIEW

 

Narayan A.V. and Srivastava A. K.

Department of Biotechnology, R. V. College of Engineering, R.V. Vidyaniketan Post, Mysore Road, Bangalore (INDIA)

 

Received on : November 10, 2015

 

ABSTRACT

 

Tomato known as Mediterranean diet is the second most consumed vegetable next to potato. About 10-40% of the total tomato processed for tomato products are as skins and seeds which are used for animal feed. There is a great demand for bioactive compounds such as carotenoids, sterols, tocopherols, fatty acids, polyphenols owing to their many health benefits. Hence, there is a great interest in researchers to extract value added products from tomato wastes. The solvents used in conventional extraction for recovering carotenoids are hexane, dichloromethane, ethyl acetate etc. For better yield of bioactive compounds a mixture of polar and non polar solvents in definite proportion are often used. The emerging (green) technologies used to recover carotenoids from tomato wastes are supercritical fluid extraction, ultrasound assisted, pressurized solvent/liquid extraction are presented. Also, the application of emerging processes for the recovery of bioactive compounds such as sterols, tocopherols, fatty acids, polyphenols from oils of tomato seeds are discussed. A comparison between conventional process and emerging technologies has been made.

 

Keywords : Lycopene, β-carotene, Sterols, Tocopherols, Fatty acids, Polyphenols

 

 

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