检索结果-南通市图书馆

Effect of ^( 60)Co γ Ray Irradiation on Contents of La, Pr, Yb and mineral elements in Fruitbodies of Agaricus biazei Murvill

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2005年第S1期23卷 497-501页

作者：翁伯琦江枝和黄俊民王义祥林勇罗涛 RESEARCH CENTER of AGRICULTURE ECOLOGY FUJIAN ACADEMY of AGRICULTURAL SCIENCESFUZHOU 3500013 CHINA RESEARCH CENTER OF EDIBLE FUNGI DEVELOPMENT AND APPLICATION FUJIAN ACADEMY OF AGRICULTURAL SCIENCESFUZHOU 350013.CHINA CENTER LABORATORY FUJIAN NORMAL UNIVERSITYFUZHOU 350003CHINA

The effects of 60Co γ ray irradiation on the contents of rare earth and mineral elements and their relativities in the fruitbodies of Agaricus biazei Murvill and their relativities were studied. The results show that there are significant difference at the 0.01 level in the contents of rare earth and mineral elements in the fruitbodies among different treatments, and that the variational laws of different elements contents are different with the varieties of the dosages accordingly. Thereinto, the contents of Pr and Mo increase with the increase of the dosage, but they decrease when the dosage are in a certain degree(1.5 KGy). But the Yb content decreases with the increase of the dosage. The variational laws of the contents of K and Cu were similar along with the variety of the dosage, and they all decrease with the increase of the dosage. But the contents of them increase and are higher than that of the three anterior treatments(0, 0.5, 1.0 KGy) when the dosage are 1.5 KGy. It can be seen that the contents of rare earth and mineral elements in the fruitbodies have something to do with the dosages in different degrees, and that rare earth also has something to do with mineral elements in different degrees. Thereinto there lied good linear relationship between the content of Yb and the dosage.

关键词： agaricus biazei Murvill friutbody mineral elements 60Co γ ray rare earths

Characteristics of mineral elements in shoots of three annual halophytes in a saline desert, Northern Xinjiang

在线全文

学校读者我要写书评

暂无评论

Journal of Arid Land 2013年第2期5卷 244-254页

作者： Ke ZHANG ChunJian LI ZhongShao LI FuHai ZHANG ZhenYong ZHAO ChangYan TIAN Key Laboratory of Oasis Ecology and Desert Environment Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences College of Resources and Environmental Sciences China Agricultural University Xinjiang Oilfield Water Supply Company

Halophytes are valuable salt-, alkali- and drought-resistant germplasm resources. However, the char- acteristics of mineral elements in halophytes have not been investigated as intensively as those in crops. This study attempted to investigate the characteristics of mineral elements for annual halophytes during their growth period to reveal their possible physiological mechanisms of salt resistance. By using three native annual halophytes （Salsola subcrassa, Suaeda acuminate and Petrosimonia sibirica） distributed in the desert in Northern Xinjiang of China, the dynamic changes in the mineral element contents of annual halophytes were analyzed through field sampling and laboratory analyses. The results demonstrated that the annual halophytes were able to absorb water and mineral nutrients selectively. In the interaction between the annual halophytes and saline soil, the adaptability of the annual halophytes was manifested as the accumulation of S, Na and CI during the growth period and maintenance of water and salt balance in the plant, thus ensuring their selective absorption of N, P, K, Ca, Mg and other mineral nutrients according to their growth demand. By utilizing this property, halophyte planting and mowing （before the wilting and death periods） could bioremediate heavy saline-alkali soil.

关键词： annual halophyte mineral elements desert saline-alkali soil Northern Xinjiang

Resorptions of 10 mineral elements in leaves of desert shrubs and their contrasting responses to aridity

在线全文

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2019年第2期12卷 358-366页

作者： Meixia Zhang Yan Luo Zhengbing Yan Jiao Chen Anwar Eziz Kaihui Li Wenxuan Han Department of Ecology and Ecological Engineering College of Resources and Environmental SciencesChina Agricultural UniversityNo.2 West Yuanmingyuan RoadHaidian DistrictBeijing 100193China State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China Research Centre for Ecology&Environment of Central Asia Chinese Academy of SciencesUrumqi 830011China Department of Ecology College of Urban and Environmental SciencesPeking UniversityBeijing 100871China

Aims We aim to investigate variations in the resorption efficiencies of 10 mineral nutrients[***(N),phosphorus(P),potassium(K),magnesium(Mg),calcium(Ca),manganese(Mn),zinc(Zn),alu-minum(Al),iron(Fe)and copper(Cu)]in leaves of desert shrubs and to explore effects of aridity on resorption efficiency of these *** Plant samples were collected from 10 sites in northern Xinjiang Uygur Autonomous Region of *** of green and senesced leaves were analysed to determine concentrations of N,P,K,Mg,Ca,Mn,Zn,Al,Fe and Cu and thus the nutrient resorption *** Findings The mean nutrient concentrations in the desert shrubs varied,with the stoichiometric ratio Ca:N(19.3 mg g−1):K(10.5 mg g−1):Mg:P(1.01 mg g−1):Al:Fe:Mn:Zn:Cu(4.78 mg kg−1)=4038:2950:2199:1816:211:37:32:11:2:1 in green leaves;and Ca:N(12.6 mg g−1):Mg:K(7.6 mg g−1):P(0.56 mg g−1):Fe:Al:Mn:Zn:Cu(2.85 mg kg−1)=5583:3710:2943:2523:178:133:119:19:3.7:1 in senesced *** generally occurred for six elements(N,P,K,Cu,Mg and Mn,with average resorption efficiency 47.8%,52.0%,38.6%,41.0%,12.7%and 7.89%,respectively)during leaf senescence,while the other four nutrients tended to accumulate in senesced leaves,showing averagely negative resorption efficiencies[Ca(-3.87%),Al(−57.1%),Zn(−62.6%),Fe(−89.6%)].Aridity showed strikingly different effects on the resorption process of the 10 *** the four elements with totally(N/P/K)or mostly(Cu)posi-tive observations of resorption efficiency,their resorption generally decreased with aridity,suggesting that drought stress had negative effects on the resorption efficiencies of these *** contrast,with at least one-third observations of resorption efficiency being negative,the other elements(Mg/Mn/Ca/Zn/Al/Fe)showed gener-ally increasing resorptive tendency with aridity,except for *** research provided a systematic analysis on the large variation and contrasting responses of the resorption of multi-elements to arid

关键词： arid region desert shrubs drought stress mineral elements nutrient resorption stoichiometric decoupling

Evaluation of mineral elements Content of Senegal Fruits

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of minerals and Materials Characterization and Engineering 2022年第2期10卷 163-173页

作者： Rokhaya Sylla Gueye Jérôme Ledauphin Fabienne Baraud Lydia Leleyter Mélanie Lemoine Rokhaya Gueye Adama Diedhiou Mamadou Balde Nango Gaye Matar Seck Djibril Fall Alassane Wele Laboratoire de Chimie Physique Minérale Organique et Thérapeutique Université Cheikh Anta Diop (UCAD) Dakar Sénégal Unité de Recherche “Aliments Bioprocédés Toxicologie Environnement” Université de Caen Normandie Caen France Laboratoire de Chimie Analytique et Bromatologie (UCAD) Dakar Sénégal

This study determined mineral value and antioxidant activity of Senegal fruits for contributing to improving healthy diet and preventing some chronic diseases. mineral element contents of Dialium guineense, Landolphia heudelotti, Mangifera indica, Cyperus esculentus and Saba senegalensis, which are widely available and consumed, were studied. The results by ICP-OES spectrophotometry after acid mineralization showed highest levels of (per 100 g fruits), calcium (158 mg), potassium (1018 mg), magnesium (532 mg), zinc (26 mg) with juice of Landolphia heudelotti fruit pulp. Mangifera indica pulp is richer in sodium (89 mg), phosphorus (556 mg), sulphur (384 mg) and silicon (110 mg). Dialium senegalensis pulp is richer in iron (23 mg) and manganese (19 mg). Lyophilized Cyperus esculentus rhizomes analyzed by atomic absorption spectrophotometry gave highest concentrations of (per 100 g fruits), calcium (2550 mg), potassium (11,843 mg) and magnesium (7669 mg) but sodium content (22 mg) is lower. In vitro antioxidant activity evaluation with the DPPH radical showed for 10 mg/ml concentration, highest inhibition percentage for Saba senegalensis 4.03%, followed by Landolphia heudelotti and Dialium guineense, which were significantly similar 2.29% and 2.20% respectively, Mangifera indica 1.7% and finally Cyperus esculentus 0.5%, but much lower compared to the ascorbic acid equal to 96.32% used as a reference.

关键词： Fruits Senegal mineral elements Antioxidant Activity

Leaching mineral elements from Chinese Maifan-stone

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Leaching Mineral Elements from Chinese Maifan-stone

Preliminary Study on the Accumulation Characteristics of mineral elements in Potted Poa crymophila under Drought and Water Stress

2008 China International Powder Technology & Application Forum

作者： Xiaohua LIU~(1 2 a) Jianxia FU~(3 b) Li LI~(2 c) Xingdong LV~(4 d) Peng PENG~(5 e) Guosheng GAI~(1 f) 1.Department of Materials Science and Engineering Tsinghua University Beijing 100084 China 2.College of Materials and Engineering Inner Mongolia University of Technology Hohhot 010062 China 3.School of Chemical and Environmental Engineering China University of Mining and Technology Beijing 100083 China 4.Functional Material Academy of Jiangxi University of Finance and Economy Nanchang 330013 China 5.Engineering Command Institute of Chemical Defence Beijing 102205 China

＜正＞Chinese maifan-stone （CMS） is Chinese traditional mineral medicine,in which there are lots of soluble mineral *** this paper static soaping to leach mineral elements and dry or wet gringding maifan-stone simultaneously leaching mineral elements was *** result shows that:much more mineral elements were leached from Maifan-stone by the method that wet vibrating mill than by the method that soaking fine Maifan-stone after *** the factors influencing on the mineral concentration such as milling time and solid/liquid mass ratio were ***,the possibility of wet-milling simultaneously to leaching mineral elements from Maifan-stone to industrialization was analyzed,and pointed out that it has good industrialization foreground.

关键词： Maifan-stone Wet-milling mineral elements mineral medicine Leaching

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Agricultural Science & Technology 2017年第12期18卷 2216-2218页

作者：李天才曹广民林丽李以康柯浔中国科学院西北高原生物研究所青海省藏药药理学和安全性评价研究重点实验室青海西宁810008

[Objective] This study was conducted to explain the mechanism of the accumulation characteristics of mineral elements in alpine grassland plants. [Method] Cultivated alpine grassland plant, Poa crymophila, was treated with drought and wa- ter stress, and then the samples were collected and analyzed. [Result] Compared with the control group, under drought and water stress, multiple mineral elements tended to accumulate and increase, and there were significant differences in the contents of Cu, Mn, Ni and P （P〈0.05）. [Conclusion] Under drought and water stress, mineral elements in potted Poa crymophila tended to accumulate and in- crease, which is the adaption and response of Poa crymophila to drought and water stress, as well as the re-verification of the starvation effect hypothesis of mineral effects. The starvation effect of mineral elements is one of the endogenic forces for the accumulation and differentiation of mineral elements in grassland plants.

关键词： Potted Poa crymophila mineral elements Accumulation characteristic Drouaht: Water stress

Effect of dietary selenium deficiency on mineral elements in myocardium of chicken

在线全文

学校读者我要写书评

暂无评论

畜牧与饲料科学 2015年第Z1期 361-361页

作者： FAN Ruifeng YAO Haidong ZHANG Ziwei XU Shiwen Department of Veterinary Medicine Northeast Agricultural University

Selenium(Se) deficiency induces myocardial necrosis in chickens,but the exact mechanism remains *** objective of this study was to investigate the effect of dietary Se deficiency on 26 mineral elements in myocardium of *** hundred and eighty 1-day-old chickens were randomly divided into two *** control-Se group(C group) was fed a medium-Se diet containing 0.2 mg Se/kg and the low-Se group(L group)was fed a Se-deficient basal diet containing 0.033 mg Se/*** the end of the 55 days period,myocardium was collected and the contents of 26 mineral elements lithium(Li),boron(B),natrum(Na),magnesium(Mg),aluminium(AI),silicium(Si),kalium(K),calcium(Ca),vanadium(V),chromium(Cr),manganese(Mn),ferrum(Fe),cobalt(Co),nickel(Ni),copper(Cu),zinc(Zn),arsenic(As),selenium(Se),molybdenum(Mo),cadmium(Cd),stannum(Sn),stibium(Sb),barium(Ba),hydrargyrum(Hg),thallium(Tl) and plumbum(Pb)were assayed by inductively coupled plasma mass spectrometry(ICP-MS).The results indicate that 10 element levels were significantly changed(Pmineral(Li,Mn,Fe,Cu,Zn,Se,Sb,Ba,Hg and Pb) in myocardium of chicken.

关键词： chickens selenium deficiency myocardium mineral elements

Analysis of mineral elements,metabolism and inflammation indexes in the plasma of dairy cows suffering from different degrees of lameness

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

畜牧与饲料科学 2015年第Z1期 336-336页

作者： LI Chunqiu GU Cheng WANG Jianfa WU Rui SUN Dongbo College of Animal Science and Veterinary Medicine Heilongjiang Bayi Agricultural University

Lameness is a major issue influencing dairy cow *** in dairy cows not only causes loss of appetite,reduction of milk production and reproduction performance,and an increase of rejection rates but also brings serious animal welfare *** past decades,researchers performed numerous studies on lameness in dairy cows,involving in incidence and risk factors of the lameness,the influences of lameness on milk production and reproduction performance,economic loss caused by lameness,and the relationship of lameness with genetics,nutrition,the number of somatic cells and mineral *** studies provided some basis for the prevention and control of lameness in dairy ***,to date,there have been few investigations on the changes of biochemical indicators in dairy cows suffering from different degrees of lameness,and their association of the biochemical indicators with the degrees of lameness in dairy *** had been reported that mineral elements,calcium(Ca),iron(Fe),copper(Cu),zinc(Zn),iodine(I),selenium(Se),molybdenum(Mo),and chromium(Cr),are closely associated with development and diseases of hoof in dairy *** the plasma of dairy cows with1-5 points of lameness,the mineral elements(Ca,Fe,Cu,Zn,I,Se,Mo,and Cr),the energy metabolic indicators[triglyceride(TG),glucose(Glu),total cholesterol(CHO),nonesterified fatty acids(NEFA),β-hydroxybutyrate(BHBA),lactate(LA),and blood urea nitrogen(BUN)],and inflammatory indexes[bovine haptoglobin(BoHp),histamine(HIS),and immunoglobulin G(IgG)]were measured,***,the correlations of the measured indicators with the degrees of lameness were *** results showed that in the plasma of dairy cows with 2/3-5 points of lameness,for the mineral elements’ levels,Ca,Cu,I,Se,and Fe significantly decreased,Cr significantly increased,and Mo showed a decreasing trend;for levels of the energy metabolism indicators,NEFA and BHBA significantly decreased,BUN and LA significantly increased,and Glu

关键词： lameness mineral elements metabolism inflammation

Study of the mineral Element Status in Sickle Cell Patients Attending the Mixed Medicine and Sickle Cell Anemia Center “Yolo Mabanga” in Kinshasa in Democratic Republic of the Congo

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Biosciences and Medicines 2024年第8期12卷 1-12页

作者： Misengabu Mbuyamba Nicole Inkalaba Kasasuka Guelord Ilunga Kabengele Alain Kodondi Kule-Koto Fridolin Health Sciences Research Institute Kinshasa Democratic Republic of the Congo Research Laboratory in Medical Biochemistry Hematology and Nutrition Faculty of Pharmaceutical Sciences University of Kinshasa Democratic Republic of the Congo

Introduction: Sickle cell disease, also called sickle cell anemia, is a genotypic disorder prevalent in the black population;it is characterized by a hemolytic type anemia and can worsen following a deficiency of copper, zinc and serum iron. Methods: It was a question of evaluating the plasma status of copper and zinc by the photometric method, serum iron was measured by spectrophotometry, and finally ferritin and transferrin were measured by the immunoenzymatic method;in subjects with sickle cell disease and healthy subjects of all ages followed at the mixed medicine and sickle cell anemia center in Kinshasa (CMMASS). Results: A total of 60 subjects participated in this study. The sex ratio was 1.30;the average age of sickle cell patients was 7.4 years ± 3.8 and 27.4 years ± 5.1;for the control group, the average age was 8.2 years ± 4.2 and 29 years ± 6.7. 13.3% of children with sickle cell disease presented hypocupremia and 13.3% hypercupremia. For adults with sickle cell disease, 26.7% had hypocupremia and 13% had hypercupremia. Regarding zincemia, 67% of children and adults with sickle cell disease presented hypozincemia;60% of child subjects with sickle cell desease demonstrated hyposideremia;in adults with sickle cell desease 20% have hyposideremia and 13% have hypersideremia. Conclusion: Our results demonstrate not only the effective presence of iron overload in adult sickle cell patients, but also an iron deficiency in controls and sickle cell patients, ignoring hemolysis. .

关键词： mineral elements Sickle Cell Disease CMMASS