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
The place of the oil palm, Elaeis guineensis Jacq., in the market for fats of vegetable commodities makes it a strategic plant which requires continuous improvement. In this context, it seems appropriate to better des...The place of the oil palm, Elaeis guineensis Jacq., in the market for fats of vegetable commodities makes it a strategic plant which requires continuous improvement. In this context, it seems appropriate to better describe the effects of the Sh gene in the developing fruit. This study aims to set a benchmark for the development of the seed in the natural palm （Elaeis guineensis var. dura） Thus the growth and development of the two major seed tissues were monitored every two weeks from pollination to maturity of the fruit. The results show that the endosperm is still liquid six weeks after pollination. It then begins an accelerated development which leads it, 11 weeks later, to completely fill the seed cavity, with an average mass of 0.81 g. This mass remains stable until the maturity of the fruit. The embryo is only visible when the endosperm is gelatinous, around 70 DPP （days post-pollination）. It then has an average length of 1.00 mm. At 126 DPP, the embryo has finished growing and measures 2.82 mm on average. This length also remains stable until 168 DPP （3.04 mm）. In perspective, a detailed follow-up of the development of the zygote from the pollination to 100 DPP is proposed. In parallel, the analysis of the chemical composition of the endosperm between 100 DPP and 168 DPP is necessary. These two complementary studies will allow to better specifying the benchmark of seed development in Elaeis guineensis var. dura.展开更多
To alleviate the localization error introduced by irregular sensor network deployment, a new mo bile path localization based on key nodes （MPLPK） protocol is proposed. It can recognize all con cave/convex nodes in t...To alleviate the localization error introduced by irregular sensor network deployment, a new mo bile path localization based on key nodes （MPLPK） protocol is proposed. It can recognize all con cave/convex nodes in the network as fixed anchor nodes, and simplify the following localization process based on these key nodes. The MPLPK protocol is composed of three steps. After all key nodes are found in the network, a mobile node applying improved minimum spanning tree （MST） algorithm is introduced to traverse and locate them. By taking the concave/convex nodes as anchors, the complexity of the irregular network can be degraded. And the simulation results demonstrate that MPEPK has 20% to 40% accuracy improvements than connectivity-based and anchor-free three-di- mensional localization （CATL） and approximate convex decomposition based localization （ACDL）.展开更多
The current study aimed to investigate the chemical components of the Chinese mangrove plant Cerbera manghas L., collected in Hainan Island.Repeated column chromatography was performed for the isolation and purificati...The current study aimed to investigate the chemical components of the Chinese mangrove plant Cerbera manghas L., collected in Hainan Island.Repeated column chromatography was performed for the isolation and purification.Compounds were identified by the analysis of their 1D and 2D NMR data as well as IR and MS spectral data.A new linear monoterpene,named （2E,6S）-8-hydroxy-2-hydroxymethyl-6-rnethyl-2-octenoic acid（1）,together with cerbinal（2）,cerberidol（3）,2α,3β,24-trihydroxyolea- 12en-28oic acid（4）,4,4,9,7- tetrahydroxy-3,3 -dimethoxy-7,9-epoxylignan （5）, （-）-olovil （6）, （＋）-cycioolivil （7）, naringenin-7-glucoside （8）, aromadendrin （9）, naringenine （10）, and （＋）-dihydroquercetin （11） were isolated from the EtOH and CH2Cl2 extracts. Compounds 4, 5, 8-11 were isolated from this plant for the first time.展开更多
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.
文摘The place of the oil palm, Elaeis guineensis Jacq., in the market for fats of vegetable commodities makes it a strategic plant which requires continuous improvement. In this context, it seems appropriate to better describe the effects of the Sh gene in the developing fruit. This study aims to set a benchmark for the development of the seed in the natural palm （Elaeis guineensis var. dura） Thus the growth and development of the two major seed tissues were monitored every two weeks from pollination to maturity of the fruit. The results show that the endosperm is still liquid six weeks after pollination. It then begins an accelerated development which leads it, 11 weeks later, to completely fill the seed cavity, with an average mass of 0.81 g. This mass remains stable until the maturity of the fruit. The embryo is only visible when the endosperm is gelatinous, around 70 DPP （days post-pollination）. It then has an average length of 1.00 mm. At 126 DPP, the embryo has finished growing and measures 2.82 mm on average. This length also remains stable until 168 DPP （3.04 mm）. In perspective, a detailed follow-up of the development of the zygote from the pollination to 100 DPP is proposed. In parallel, the analysis of the chemical composition of the endosperm between 100 DPP and 168 DPP is necessary. These two complementary studies will allow to better specifying the benchmark of seed development in Elaeis guineensis var. dura.
基金Supported by the National Natural Science Foundation of China(No.61133016)the Sichuan Science and Technology Support Project(No.2013GZ0022)+1 种基金the Scientific Research Fund of Xinjiang Provincial Education Department(No.XJEDU2013128)the Technology Supporting Xinjiang Project(No.201491121)
文摘To alleviate the localization error introduced by irregular sensor network deployment, a new mo bile path localization based on key nodes （MPLPK） protocol is proposed. It can recognize all con cave/convex nodes in the network as fixed anchor nodes, and simplify the following localization process based on these key nodes. The MPLPK protocol is composed of three steps. After all key nodes are found in the network, a mobile node applying improved minimum spanning tree （MST） algorithm is introduced to traverse and locate them. By taking the concave/convex nodes as anchors, the complexity of the irregular network can be degraded. And the simulation results demonstrate that MPEPK has 20% to 40% accuracy improvements than connectivity-based and anchor-free three-di- mensional localization （CATL） and approximate convex decomposition based localization （ACDL）.
基金NSFC(Grant No.30672607)the National 863HiTech Projects(Grant No.2006AA09Z446,2006DFA31100)China Uni-PhD Base Project(Grant No.20060001149).
文摘The current study aimed to investigate the chemical components of the Chinese mangrove plant Cerbera manghas L., collected in Hainan Island.Repeated column chromatography was performed for the isolation and purification.Compounds were identified by the analysis of their 1D and 2D NMR data as well as IR and MS spectral data.A new linear monoterpene,named （2E,6S）-8-hydroxy-2-hydroxymethyl-6-rnethyl-2-octenoic acid（1）,together with cerbinal（2）,cerberidol（3）,2α,3β,24-trihydroxyolea- 12en-28oic acid（4）,4,4,9,7- tetrahydroxy-3,3 -dimethoxy-7,9-epoxylignan （5）, （-）-olovil （6）, （＋）-cycioolivil （7）, naringenin-7-glucoside （8）, aromadendrin （9）, naringenine （10）, and （＋）-dihydroquercetin （11） were isolated from the EtOH and CH2Cl2 extracts. Compounds 4, 5, 8-11 were isolated from this plant for the first time.
