Pt-Re-MCM-41催化剂的制备、表征及其催化热解玉米芯制呋喃类化合物     

李文斌  郑云武  李水荣  卢怡  郑志锋 《林产化学与工业》2020,40(2):83-92

  相似文献   

合成二氢月桂烯醇的研究进展   总被引：8，自引：0，他引：8  

陶武彬  萧树德 《林产化学与工业》1996,16(4):69-76

综述了从蒎炮合成二氢月挂烯醇的路线及关键反应的研究进展，包括蒎烯氢化、蒎 烷异构化。一步法和二步法从二氢月桂烯制二氢月桂烯醇。  相似文献   

紫杉的利用价值     

戴晓龙 《农技服务》2001,(7):14-14

<正> 自贵刊去年第12期发表了《紫杉种子育苗技术》一文后,读者反响很大,纷纷来信咨询其利用价值,现重点介绍如下: (一)观赏价值 紫杉树形像罗汉松,盆栽1米左右,地植高达25米。无论室内外栽培,其散放出独特的气味对预防癌症、艾滋病、白血病等均有良  相似文献   

E—1—碘—3—苯基—3—三甲硅氧基—1—辛烯的合成     

周乐  傅建熙 《西北农业大学学报》1993,21(1):15-20

  相似文献   

海产品中呈味成份甜菜碱的测定     

黄丽贞 《上海海洋大学学报》1994,(3):160-163

甜菜碱(Betaine)是指甘氨酸甜菜碱[(CH3)3N^ CH2COO^-]，β-丙氨酸甜菜碱[CH3)3N^ CH2COO^-]，龙虾肌碱[ COO^-]等一类化合物。根据国外文献报导，日本对水产品中呈味物质的研究较多。若干学者对虾、蟹、贝类海产动物肌肉中甜菜碱含量的测定方法作过研究[Konosu,1975；Hayashi，1977、1978；须山三干三等，1992年汉译本]，表明甜菜碱类化合物在海产甲壳类、软体类肌肉中含量丰富，  相似文献   

芪合酶基因的研究进展与应用现状     

刘晶莹  佟少明  侯和胜 《天津农业科学》2015,(4):24-27

芪类化合物是一种重要的植物抗毒素,因其具有多种医疗保健作用,已引起多方关注。芪合酶是芪类化合物生物合成途径中的关键酶,关于它的研究已广泛开展。本文对芪类化合物的生物合成途径、药理作用,芪合酶的结构、功能,以及芪合酶基因的表达、芪合酶的基因工程研究等方面的进展进行综述,以期为进一步深入研究提供重要信息和科学参考。  相似文献   

紫杉育苗技术     

杨金富  姜忠元  王新杰  印中  鞠文鹏 《辽宁林业科技》2011,(3):55-56

紫杉是世界珍稀树种,其观赏、药用、木材利用价值极高,笔者采用沙藏催芽、营养钵点播和扦插的方法繁育紫杉,适时进行浇水、追肥、施药,防止立枯病,加强苗期管理,取得了成功,适宜北方地区紫杉育苗生产。  相似文献   

RhCl(PPh3)3的制备及其催化松节油加氢反应     

刘壁莹  蒋丽红  王亚明  郑燕娥  郭炜  朱桂华 《林产化学与工业》2020,40(4):123-128

  相似文献   

食品中邻苯二甲酸酯类化合物检测方法研究进展     

《中国蜂业》2015,(9):48-52

邻苯二甲酸酯类化合物(phthalic acid esters,简称PAEs)主要用于提高食品塑料包装物的韧性和耐用性,在一定的条件下这些化合物会迁移至食品中去,从而干扰人体激素的分泌,在体内长期积累可导致畸形、癌变和突变。本文对近年来国内外食品中的内分泌干扰物邻苯二甲酸酯类化合物检测方法的研究进展进行了综述,概括了食品中PAEs的样品前处理技术和检测技术的发展近况,并特别对蜂产品中PAEs检测分析发展进行了展望。  相似文献   

Protective Effect of Sulforaphane on Reproductive Function of Male Mice with Cadmium Poisoning     

GAO Feng  HE Jian-bin  ZHANG Yi  LONG Miao  LI Lin  LI Yan-peng  HAN Yang  WANG Xue  JIANG Li-ying  YANG Shu-hua 《中国畜牧兽医》2016,43(2):471-476

The study was aimed to explore the protective effect of sulforaphane (SFN) on the reproductive function of male mice with cadmium poisoning.40 healthy clean grade male Kunming mice were randomly divided into four groups:control group (H₂O),cadmium chloride group (2.3 mg/kg CdCl₂),sulforaphane group (10 mg/kg SFN),sulforaphane + cadmium chloride group (10 mg/kg SFN+2.3 mg/kg CdCl₂),and continuous administration for 10 d,all mice were executed by dislocated cervical vertebra at 2 d after the last administration,and then the pathologic changes of testicular tissues,organ coefficient of testicle and epididymis,sperm quality and concentration of testosterone were tested.Additionally,the contents of GSH and MDA,and the activities of T-SOD in testis were also detected at the same time. Compared with the control group,pathology damages were observed in cadmium chloride group,organ coefficient of testis and epididymis,sperm quality and levels of testosterone extremely significantly decreased (P<0.01),the activities of T-SOD and GSH content were extremely significantly decreased (P<0.01),and the concentration of MDA was extremely significantly enhanced (P<0.01).Compared with the control group,the activity of T-SOD and concentration of GSH in sulforaphane group were significantly increased (P<0.05),and the concentration of MDA was not significant different between the control group and sulforaphane group (P>0.05).While compared with the cadmium chloride group,the sperm motility rate and sperm total count in sulforaphane and cadmium chloride group were extremely significantly increased (P<0.01),the organ coefficient of testicle and epididymis was increased significantly (P<0.05),the concentration of GSH and activity of T-SOD in testicular tissue were extremely significantly increased (P<0.01),and the concentration of MDA was extremely significantly decreased (P<0.01).The results indicated that sulforaphane had the protection effect on reproduction function of male mice with cadmium poisoning.  相似文献