IMPACT OF VARIOUS PRE-TREATMENTS ON TOMATO SEED OIL RECOVERY AND QUALITY SUBMITTED BY:

INTRODUCTION About a third of tomatoes (Lycopersicon esculentum L.) delivered to processing plants ends as processing waste (Ries and Stout, 2002). The oil content of tomato seeds was found to be 21.8%. The seed oil was a red-yellowish liquid at ambient temperature and had a mild tomato fruit-like odor.

INTRODUCTION The oil has a high unsaturated acid content, with over 50% linoleic acid (Evangelos S. Lazos 1998) Most commonly used for salad dressing and margarine preparation It is also found that the vitamins such as vitamin A, flavonoid, B complex, thiamine, folate, niacin are also present in tomato seeds that helps cure skin and eye diseases.

OBJECTIVE To study the effect of various pre-treatments on tomato seed oil recovery and compare it with control sample. To study the physio-chemical characteristics of extracted tomato seed oil and compare with control sampe To study the shelf life of extracted tomato seed oil.

Review of literature S.NOTITLEAUTHORCONTENT REFERED 1Pre-processing and Oil Extraction from the Seeds of tomato Wastes using Microwave and Ultrasound Treatments. 1.Ali Aarabi Arabani 2.Fakhrisadat hosseini 3.Navideh Anarjan Effect of combination of microwave and ultrasound treatment. 2Characteristics and composition of tomato seed oil 1.Evangelos S. Lazos 2.John Tsaknis 3.Stavros Lalas 1.Sample preparation. 2.Analytical procedures. 3Combined effect of ohmic heating and enzyme assisted aqueous extraction process on soy oil recovery 1.Akash Pare 2.Anurag Nema 3. V. K. Singh & 4.B. L. Mandhyan 1.Ohmic heating and enzyme assisted aqueous extraction process.

S.NOTITLEAUTHORCONTENT REFERED 4Heat pretreatment of oilseeds: effect on oil quality 1.Jan Willem Veldsink 2.Bart G. Muuse1 3.Margreet M. T. Meijer 4.F.Petrus Cuperus 5.Rob L. K. M.van de Sande 6.Karel P. A. M. van Putte Steaming of oilseeds for better extraction and quality 5Effects of drying methods on qualitative and quantitative properties of essential oil of two basil landraces 1.Abdollah Ghasemi Pirbalouti 2.Elahe Mahdad 3.Lyle Craker Color retention and cell structure maintenance on treatment with microwave and oven heating

RESEARCH GAP RF treatment Combination of RF and ultrasonic treatment Shelf life studies Ohmic heating

MATERIALS AND METHODS

WITHOUT PRE-TREATMENT Extracting seeds Drying in air (ambient conditions)/Microwave treatment (4 mm/s,30 min)/ RF drying for 30mins Grinding Sieving (0.7 mm) Oil extraction (soxhlet apparatus, solvent : hexane)BottlingStoring (0 - 4 ˚C)

MICROWAVE TREATMENT Extracting seeds Drying in ambient condition GrindingSieving (0.7 mm) Microwave treatment (4 mm/s,30 min)Oil extraction (soxhlet apparatus, solvent : hexane) BottlingStoring at 0-4 ˚C

RF Treatment Extracting seedsDrying in air(ambient conditions)GrindingSieving ( 0.7mm) RF drying for 30minsOil extraction(soxhlet apparatus, solvent : hexane)BottlingStoring(0-4˚C)

Oil obtained by different pre-treatments

Plan of action Pre-treatment with Ohmic heating Steaming Infra-red Ultra sonic Enzyme assisted pre treatment Combination of microwave an RF

Physical and chemical characteristics Acid value FFA value Peroxide value Fatty acid profile Density, 25°C Refractive index, 40°C Viscosity (21 °C),mPa.s Smoke point, °C Colour Saponification number Iodine value Acidity, % as oleic

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