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EXTRACTION AND DETERMINATIAN OF SOME BASIC COMPONENTS OF LEAVES AND SEEDS OF LOCAL LETTUCE | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 39, Issue 5, 2008, Pages 89-98 | ||
| Author | ||
| Zainab A.J. AL - Mousway | ||
| Abstract | ||
| This experiment was applied to the leaves parts of a local Iraqi lettuce leaves and its seeds to determine the essential percentages that Continuous extraction method by some solvent. It is found that the oil percentage in lettuce leaves dose not exceed 2 % where as in its Seeds it is 24 % .The protein percentage has been determined by Kjeldhal method and it is found 12.1 % in the leaves and about 13.15% in the Seeds. The percentage of Carbohydrate has been found to be 23% in the leaves and 18 % in the seeds. The percentage of moisture 9.15 % in the leaves and 2.21% in the seeds.The percentage of crude fiber is found to be about 12.5% in the leaves and14.3% in the seeds. The study has also included measuring the percentage of the total ash and ash in soluble in acid and that soluble in water for the dried leaves of the local lettuce.This percentage is found to be 11.33% and 24.12 mg/gm and 9.45 mg/gm respectively. As far as the percentage of the total ash of seeds is concerned . it is found to be about 6.1% , where as the percentage of ash which is in soluble acid and that which is soluble in water for seeds has been found to be 12.25 mg/gm and 8.38 mg/mg respectively . Organic identified by using Fourier Transform Infra Red= (FTIR) spectra . The results show the reactive groups in both of the leaves of the local lettuce and its seeds which are represented by hydroxylic (O-H) belongs to carboxylic acid , alcohol or water , Al-carbonyl groub (C=O) which belongs to carboxylic acid , ketons and aldehydes , Al-alkynes groups (C=C) which belongs to aliphatic compounds or aromatic compounds .The experiment for measuring the degree of swelling for the local dry lettuce leaves and its seeds under the normal temperature in dark place and during equal periods of time for the leaves of lettuce and its seeds as well it is worth mentioning here that the leaves require 2-3 hours for reaching the degree of swelling and then to equation whereas the seeds on the other hand take about 24 hours for the same purposes above . | ||
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