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刀鲚两种生态类群-"江刀"和"海刀"鱼肉营养组成的比较及品质的评价 被引量:33
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作者 徐钢春 顾若波 +3 位作者 张呈祥 郑金良 闻海波 徐跑 《海洋渔业》 CSCD 北大核心 2009年第4期401-409,共9页
采用常规方法对刀鲚两种生态类群("江刀"和"海刀")的鱼肉营养成分进行了分析比较并评价了鱼肉品质。结果表明,"江刀"鱼肉粗脂肪含量显著高于"海刀"(P<0.01),是"海刀"的2.03倍,而... 采用常规方法对刀鲚两种生态类群("江刀"和"海刀")的鱼肉营养成分进行了分析比较并评价了鱼肉品质。结果表明,"江刀"鱼肉粗脂肪含量显著高于"海刀"(P<0.01),是"海刀"的2.03倍,而粗蛋白、水分、灰分含量则低于"海刀"。"江刀"和"海刀"鱼肉的水解氨基酸组成基本一致,均含有18种氨基酸,总量分别占鱼肉鲜样的11.55%和15.37%,其中7种EAA(Leu、Ile、Phe、Try、Thr、Val、Lys)、1种HEAA(Arg)和4种NEAA(Glu、Ser、Tyr、Pro)的含量在"江刀"与"海刀"间存在显著性差异(P<0.05),8种人体必需氨基酸含量分别占鲜样的4.87%和6.4%,与非必需氨基酸的比值分别为85.59%、83.44%,其必需氨基酸构成比例符合FAO/WHO的标准。另外,必需氨基酸指数(EAAI)分别为22.32、41.82,支链氨基酸与芳香族氨基酸的比值(F值)分别为2.43、2.49,4种鲜味氨基酸含量分别占鲜样的4.59%、6.12%;"江刀"鱼肉鲜样中牛磺酸含量(265.43 mg/100 g)显著高于"海刀"(200.93 mg/100 g)。采用甲酯化法衍生化"江刀"、"海刀",再经GC/MS分析鉴定出20种脂肪酸,其中饱和脂肪酸(SFA)9种,单不饱和脂肪酸(MUFA)5种,多不饱和脂肪酸(PUFA)6种。"江刀"多不饱和脂肪酸(9.05%)显著低于"海刀"(13.20%),其中"江刀"EPA与DHA(4.21%、2.26%)显著低于"海刀"(6.71%、2.92%),但绝对含量显著高于"海刀"(P<0.05);ω3PUFA/ω6PUFA值分别为2.67和2.87。全鱼肉中矿物质含量丰富,尤其是Se,Na、Mg、Se的含量在"江刀"和"海刀"之间均存在明显的差异。本研究结果将为刀鲚种质标准的建立和两种生态类群的鉴别提供科学依据。 展开更多
关键词 江刀 海刀 营养成分 鱼肉品质
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2种生态类群刀鲚(江刀和海刀)肌肉游离氨基酸的差异 被引量:5
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作者 张呈祥 徐钢春 +1 位作者 顾若波 郑金良 《长江大学学报(自科版)(中旬)》 CAS 2010年第2期32-35,共4页
采用高效液相色谱法对2种生态类群刀鲚(Coilia nasus)(江刀和海刀)的肌肉游离氨基酸进行了比较分析。结果显示:两者肌肉游离氨基酸组成相似,但含量存在差异。江刀和海刀100 g鲜样中游离氨基酸总含量分别为397.01 mg和370.03 mg,游离必... 采用高效液相色谱法对2种生态类群刀鲚(Coilia nasus)(江刀和海刀)的肌肉游离氨基酸进行了比较分析。结果显示:两者肌肉游离氨基酸组成相似,但含量存在差异。江刀和海刀100 g鲜样中游离氨基酸总含量分别为397.01 mg和370.03 mg,游离必需氨基酸总含量分别为47.24 mg和53.92 mg。江刀4种鲜味氨基酸(Glu、Asp、Gly、Ala)含量(4.59%)显著低于海刀(6.12%),而牛磺酸含量(265.43 mg/100 g)则显著高于海刀(200.88 mg/100 g)(P<0.05)。 展开更多
关键词 江刀 海刀 游离氨基酸 肌肉
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《海洋与渔业》 2019年第4期11-11,共1页
|养|殖|近几年来,大水面渔业成为吉林渔业发展的重头戏。通过扶龙头、树典型、重推广,大水面生态渔业给当地群众带来了显著的经济效益和生态效益。|捕|捞|从今年2月1日开始,农业农村部停止发放刀鲚、凤鲚和中华绒螯蟹的专项捕捞许可证... |养|殖|近几年来,大水面渔业成为吉林渔业发展的重头戏。通过扶龙头、树典型、重推广,大水面生态渔业给当地群众带来了显著的经济效益和生态效益。|捕|捞|从今年2月1日开始,农业农村部停止发放刀鲚、凤鲚和中华绒螯蟹的专项捕捞许可证。按照相关规定,今年长江的刀鱼是不允许捕捞的,“海刀”或去年冰鲜保存的“江刀”是可以销售的。 展开更多
关键词 渔业 重头戏 水面 海刀 冰鲜 长江 吉林 农村部
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Cytotoxic and pro-apoptotic activities of medicarpin from Canavalia maritima(Aubl.) via the suppression of NF-κB activation in HeLa cells 被引量:2
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作者 徐岷涓 黄新苹 +3 位作者 李敏 孙婉 崔景荣 林文翰 《Journal of Chinese Pharmaceutical Sciences》 CAS 2009年第4期331-336,共6页
Three known pterocarpin derivatives, (-)-medicarpin (PDI), (-)-2-hydroxy-4,9-dimethoxypterocarpan (PD2), and 4- hydroxy-3-methoxy-8,9-methylene-dioxypterocarpan (PD3) were isolated from Canavalia maritima, f... Three known pterocarpin derivatives, (-)-medicarpin (PDI), (-)-2-hydroxy-4,9-dimethoxypterocarpan (PD2), and 4- hydroxy-3-methoxy-8,9-methylene-dioxypterocarpan (PD3) were isolated from Canavalia maritima, for the first time. The cytotoxic and pro-apoptotic activities of (-)-medicarpin in cutured human tumor HeLa cells and its effect on NF-r,B activation were investigated. We found that PD1 inhibited NF-r,B activation by high content screening analysis, and PD1 exhibited cytotoxicity by SRB assay. In addition, we found that PD1 induced nuclear condensation and increased membrane permeability and mitochondrial transmembrane potential in HeLa cells in a dose and time dependent manner. In conclusion, our data suggested that (- )-medicarpin was capable of inhibiting tumor cell growth in vitro and inducing apoptosis, which might be via the suppression of NF-kB activation. 展开更多
关键词 Medicarpin Canavalia maritime ANTICANCER Apoptosis NF-KB High content screening
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Dynamics of saltwater intrusion in the Modaomen Waterway of the Pearl River Estuary 被引量:12
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作者 WANG Biao ZHU JianRong +2 位作者 WU Hui YU FuJiang SONG XueJia 《Science China Earth Sciences》 SCIE EI CAS 2012年第11期1901-1918,共18页
Observations indicate an abnormal characteristic of saltwater intrusion in the upper Modaomen Waterway of the Pearl River Estuary,i.e.,the maximum salinity occurs during the neap tide or the coming moderate tide inste... Observations indicate an abnormal characteristic of saltwater intrusion in the upper Modaomen Waterway of the Pearl River Estuary,i.e.,the maximum salinity occurs during the neap tide or the coming moderate tide instead of during the spring tide.To explore the associated dynamic mechanisms,a high resolution three-dimensional numerical model was set up based on the Finite Volume Coastal Ocean Model(FVCOM),which covered the entire river network,the Pearl River Estuary,and the adjacent sea.Numerical experiments illustrated that the upper Modaomen Waterway is significantly influenced by the saltwater intrusion from the Hongwan Waterway,a narrow and shallow channel connecting the Modaomen Waterway to the sea.Specific topography,spring-neap tidal variation,local wind stress,and their interaction drive an up-estuary residual current in the Hongwan Waterway,which is much stronger during the neap tide than during the spring tide.As a result,more saltwater in the Hongwan Waterway is spilled over into the Modaomen Waterway during the neap tide or the coming moderate tide.This is the inherent dynamic mechanism why the saltwater intrusion in the upper Modaomen Waterway reaches its maximum during the neap tide or the coming moderate tide.Besides,we also found that the winter prevailing wind can pronouncedly enhance the saltwater intrusion in the Modaomen Waterway. 展开更多
关键词 Pearl River Estuary Modaomen Waterway saltwater intrusion abnormal characteristic dynamic mechanism
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