This study was conducted to determine primary metabolites （protein, fat and total carbohydrate） and energy in various parts of Oak fruit （cotyledon, pericarp and cupules） for each of Quercus aegilops Subsp. branti...This study was conducted to determine primary metabolites （protein, fat and total carbohydrate） and energy in various parts of Oak fruit （cotyledon, pericarp and cupules） for each of Quercus aegilops Subsp. brantii, Quercus infectoria and Quercus libani. Oak fruits were collected during October in 2008 from three different native species of Quercus spp. in Khamza Mountain oak forest in Sulaimani city of Iraqi Kurdistan. The fruit samples were dried for moisture by oven and ash by Muffle Furnace. Samples were also analyzed for protein by Kjeldahl, fat by Soxhlet, total carbohydrate and energy by calculation （Atwater system）. This study revealed significant and high significant differences （P _〈 0.05 and P 〈 0.01） by using Duncan＇ s multiple range as a test of comparisons between means of studied species for various parts of oak fruits in content of energy and food compounds for each part of oak fruit. The energy content for cotyledon was 404.826-410.558 kcal/100g DM; pericarp, 397.618-406.850 kcal/100g DM and cupules, 387.100-391.109 kcal/100g DM; the maximum value for energy content was found in cotyledon of Q. infectoria. Protein content in cotyledon was 3.406-5.426% DM; pericarp, 2.542-2.609% DM and cupules, 1.272-2.066% DM, that cotyledon ofQ. aegilops Subsp. brantii contain highest amount of protein. Fat content in cotyledon was 3.375-3.942% DM; pericarp, 1.754-2.766% DM and cupules, 1.464-2.165% DM, maximum content of fat was found in cotyledon of Q. infectoria. Total Carbohydrate content in cotyledon was 88.491-90.364% DM; pericarp, 92.486-92.947% DM and cupules, 90.594-92.977% DM, the cupules of Q. infectoria contained highest content of total Carbohydrate.展开更多
In this investigation work, FA （fatty acids） components produced by Oak tree fruits were determined as a fat content in acorn, pericarp and cupules in the three Oak species （Q. aegilops subsp brantii, Q. libani and...In this investigation work, FA （fatty acids） components produced by Oak tree fruits were determined as a fat content in acorn, pericarp and cupules in the three Oak species （Q. aegilops subsp brantii, Q. libani and Q. infectoria）. The plant samples were collected in Khamza Mountain Oak forest of Sulaimani/Kurdistan Region during October 2008. Exposed to air room temperature for drying and ground to fine powder by electric blender then stored in a plastic containers at 4 ℃. In the preliminary step, fat detected from acorn, pericarp and cuplules by ＂Soxhlet＂ method and the various FA （saturated＆unsaturated） were separated and determined by GLC （gas liquid chromatography）. The amount of saturated FA in the acorn of the Q. aegilops subsp brantii, Q. libani and Q. infectoria were more than 25%, 7% and 18% while in the pericarp were more than 9%, 12% and 11%, but in the cuplules were more than 9%, 10% and 10%, respectively. The amount of unsaturated FA in the acorn of the Q. aegilops subsp brantii, Q. libani and Q. infectoria were more than 70%, 91% and 79% while in the pericarp were more than 87%, 84% and 81%, but in the cuplules were more than 87%, 88% and 84%, respectively. The most abundant FA found in the acorn, pericarp and cuplules were Oleic followed by Lenoleic, except the cuplules of Q. infectoria, the most abundant FA was Lenoleic followed by Oleic.展开更多
文摘This study was conducted to determine primary metabolites （protein, fat and total carbohydrate） and energy in various parts of Oak fruit （cotyledon, pericarp and cupules） for each of Quercus aegilops Subsp. brantii, Quercus infectoria and Quercus libani. Oak fruits were collected during October in 2008 from three different native species of Quercus spp. in Khamza Mountain oak forest in Sulaimani city of Iraqi Kurdistan. The fruit samples were dried for moisture by oven and ash by Muffle Furnace. Samples were also analyzed for protein by Kjeldahl, fat by Soxhlet, total carbohydrate and energy by calculation （Atwater system）. This study revealed significant and high significant differences （P _〈 0.05 and P 〈 0.01） by using Duncan＇ s multiple range as a test of comparisons between means of studied species for various parts of oak fruits in content of energy and food compounds for each part of oak fruit. The energy content for cotyledon was 404.826-410.558 kcal/100g DM; pericarp, 397.618-406.850 kcal/100g DM and cupules, 387.100-391.109 kcal/100g DM; the maximum value for energy content was found in cotyledon of Q. infectoria. Protein content in cotyledon was 3.406-5.426% DM; pericarp, 2.542-2.609% DM and cupules, 1.272-2.066% DM, that cotyledon ofQ. aegilops Subsp. brantii contain highest amount of protein. Fat content in cotyledon was 3.375-3.942% DM; pericarp, 1.754-2.766% DM and cupules, 1.464-2.165% DM, maximum content of fat was found in cotyledon of Q. infectoria. Total Carbohydrate content in cotyledon was 88.491-90.364% DM; pericarp, 92.486-92.947% DM and cupules, 90.594-92.977% DM, the cupules of Q. infectoria contained highest content of total Carbohydrate.
文摘In this investigation work, FA （fatty acids） components produced by Oak tree fruits were determined as a fat content in acorn, pericarp and cupules in the three Oak species （Q. aegilops subsp brantii, Q. libani and Q. infectoria）. The plant samples were collected in Khamza Mountain Oak forest of Sulaimani/Kurdistan Region during October 2008. Exposed to air room temperature for drying and ground to fine powder by electric blender then stored in a plastic containers at 4 ℃. In the preliminary step, fat detected from acorn, pericarp and cuplules by ＂Soxhlet＂ method and the various FA （saturated＆unsaturated） were separated and determined by GLC （gas liquid chromatography）. The amount of saturated FA in the acorn of the Q. aegilops subsp brantii, Q. libani and Q. infectoria were more than 25%, 7% and 18% while in the pericarp were more than 9%, 12% and 11%, but in the cuplules were more than 9%, 10% and 10%, respectively. The amount of unsaturated FA in the acorn of the Q. aegilops subsp brantii, Q. libani and Q. infectoria were more than 70%, 91% and 79% while in the pericarp were more than 87%, 84% and 81%, but in the cuplules were more than 87%, 88% and 84%, respectively. The most abundant FA found in the acorn, pericarp and cuplules were Oleic followed by Lenoleic, except the cuplules of Q. infectoria, the most abundant FA was Lenoleic followed by Oleic.
