Pumpkin Synthesis
ABSTRACT Pumpkin is a traditional Korean food that be easy to store and is already believed to have health benefits. Extracted carotenoids frompumpkin by liquid–liquid extraction and by supercritical fluid extraction.The major carotenoid into pumpkin (>80%) is _-carotene, with minor amounts of lutein, lycopene, _-carotene and Cis-_-carotene. Pumpkin is a rich source of _-carotene and might be useful used for preventing Vitamin A deficiency In our study, we characterized the antioxidant activity and oxidant stability of cold-pressed pumpkin, The radical scavenging activity of the non-fractionated fresh oil, as well as the lipophillic and hydrophilic fractions of the oil was determined using a 1,1-diphenyl-2-picrylhydrazyl(DPPH) assay. The fatty acid composition of the fresh and stored oils was analyzed by gas chromatography.
PREPARATION OF PUMPKIN EXTRACT Pumpkin were obtained from local supermarket near the local town. The kernel were of natural quality not including any additives. Then the dried resources (without the peels) were grounded to powder with blender (SHARP EM- 11, Malaysia). Ten grams (10 g) of dehulled crushed sample were mixed with 150 ml of respective solvents, aqueous methanol (50%) and methanol and placed on water bath 40 °C for 18 h with stirring/trembling. The extracts were filtered and concentrated by rotary
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In this study, methanol and 50 % aqueous methanol were found to be suitable solvents for extraction of phenolis from the dehulled kernels of standards and pumpkin. Phenolic compounds are polar in nature due to the presence of hydroxyl groups on the cyclic rings which contribute to their polarity.[9] Hence, polar solvents such water; alcoholic or aqueous alcoholic solutions are effective extraction solvents for phenolic compounds from natural compounds containing -OH groups are more soluble in solvents
Pumpkin Honor Code
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