还原力
- 名reducing power
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在铁离子还原力的体系中,随着浓度的增高,乙酸乙酯和氯仿相提取部位的还原力比其它相增大的更快。
In ferric ion reducing power system , reducing power of ethyl acetate and chloroform extracts with increasing concentrations increased faster than others .
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小扁豆总酚含量、总抗氧化能力、DPPH·清除能力和总还原力最高。
Lentil has the highest content of total phenol , and the most capacities of total antioxidant , DPPH · scavenging and total reducing power .
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825mW/cm~2的CO2激光照射茄子干种于10秒,13秒,15秒,可以增强幼苗素质,激光组的子叶、真叶的干重,叶面积,叶绿素含量及根系的相对还原力均高于对照。
The quality of seedlings may be enhanced when dry seeds of eggplant were irradiated with 825mW / cm2 of CO2 laser at a time of 10s ; 13s ; 15s .
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结果表明,去顶、顶端涂抹NAA和茎基部涂抹CME都不影响豌豆根系铁还原力。
The results showed that decapitation , NAA of CME supply did not have significant effects on iron reducing activity of pea roots .
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通过测不同储藏条件山核桃的还原力,DPPH清除率和水分含量,探究最适山核桃储藏的条件。
Pecan different storage conditions by measuring the reducing power , DPPH scavenging rate and moisture content , explore the best pecan storage conditions .
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结果表明,杂交稻根系TTC还原力、伤流强度在孕穗期出现峰值,SOD活性在齐穗期与灌浆期之间出现峰值;
The results show the peak of TTC deoxidizing ability and exudates intensity in the booting stage , and of SOD activity between the full heading and milk ripening stage is occurs ;
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分别采用滤纸片法,DPPH自由基清除法、羟自由基清除法和总还原力法对大火草内生菌发酵产物做体外抑菌活性、抗氧化活性研究。
In vitro antimicrobial and antioxidant activity of the endophytic fungi were analyzed by filter paper method and DPPH , reducing power , hydroxyl radical scavenging , respectively .
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测定不同分离组分对二苯代苦味酰肼自由基(DPPH)的清除活性、还原力、酚质量分数、对羟自由基和超氧阴离子自由基的抑制活性。
The DPPH radical scavenging activities , the reducing powers , the amount of total phenolic compounds , the inhibitory effect on hydroxyl radical and superoxide anion radical o.
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而碳水化合物(葡萄糖)也可使其固氮活力提高约100%,并使其呼吸速率提高近160%。表明碳水化合物及H2均可为Gunnera/Nostoc共生体提供固氮过程的还原力。
Exogenous carbohydrate ( glucose ) increased nitrogen fixing activity by nearly 100 % , and increased respiratory rate by nearly 160 % simultaneously .
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实验证明,这与La能增加大豆幼苗光合速率,提高叶绿素含量与硝酸还原酶活性、降低细胞质膜透性与植株体内Cd含量、维持TTC还原力等多重作用相关。
The experiment proves this effect being related to that La raises photosynthetic rate , chlorophyll content and activity of nitrate reductase , reduces cell membrane permeability and Cd content , keeps TTC reduction ability of Glycine max seedling .
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我们认为NTRC利用NADPH作为还原力来源,形成了保护叶绿体免受氧化伤害的替代系统。
We propose that NTRC constitutes an alternative system for chloroplast protection against oxidative damage , using NADPH as the source of reducing power .
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NADPH是生物体的一种重要辅酶,它不仅为生物合成反应提供还原力,而且对于细胞抵抗活性氧(ROS)的毒害也有重要作用。
NADPH is one of the important coenzymes in cells , not only for the supply of reducing equivalents in biosynthetic pathways , but also for the protection of cells against the toxicity of ROS .
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采用DPPH自由基体系、亚油酸体系、还原力的测定、羟基自由基体系及超氧自由基体系对三种荷叶茶茶汤的抗氧化能力进行研究。
The antioxidant activities of three kinds of lotus leaf tea infusion were studied by power reducing , DPPH radical system , linoleic acid system , Hydroxyl radical system and superoxide radical system .
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分别采用福林酚法及铁离子还原力法(FRAP法)对超声提取物的抗氧化性进行评价。
Folin-Ciocalteu method and ferric reducing antioxidant power ( FRAP ) assay were adopted to evaluate the antioxidant capacity of the extracts obtained by ultrasonic treatment .
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结果表明,热力灭菌对啤酒的风味稳定性影响较小;贮存温度和溶解氧明显影响啤酒中5-羟甲基糠醛、B峰、史垂克醛类、TBN、DPPH还原力、色度等风味稳定性指标的浓度;
It was found that pasteurization had little effect on stale flavor , while storage temperature and oxygen could change apparently the levels of 5-HMF , Peak B , Strecker aldehydes , TBN , DPPH and color in beer .
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其次,以BHT作为阳性对照,通过体外抗氧化活性研究,研究了4种提取物对DPPH·、·OH、O2-·和H2O2的清除作用,提取物的总抗氧化活性和还原力。
Secondly , using BHT as the positive control , the antioxidant activities of four extracts were measured with the scavenging capacity of DPPH ·,· OH , O2 - · and H2O2 ; total antioxidant activity and reducing power in vitro .
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同时研究了脱色和超微粉碎对小麦麸皮膳食纤维的体外抗氧化能力的影响,如清除DPPH?(1,1-二苯基苦基苯肼)能力、还原力、螯合铁离子能力等。
The effect to antioxidant activities of high fibre products from wheat bran by decoloration and micronization were studied by the vitro methods . The DPPH ? scavenging , reducing power and chelating ability were evaluated .
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初花期(7月15日)至盛花期(7月23日)棉株5cm以下土层侧根还原力高于0~5cm侧根还原力。
The lateral root reductive activity below 5 cm soil layer was higher than that in 0-5 cm soil layer from early-bloom stage ( July 15 ) to full-blooming stage ( July 23 ) .
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采用分光光度法测定各提取部位对二苯代苦味酰自由基(DPPH·)的清除能力、在β-胡萝卜素/亚油酸体系中的抗氧化特性及其总还原力。
The antioxidant activities of the five extractive fractions for diphenyl bitter acyl radicals ( DPPH - ) scavenging , antioxidant properties of beta-carotene / linoleic acid system and the total reducing power were determined by spectrophotometric method .
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为了揭示杂交水稻组合生育后期根系机能与再生力的关系,对10个杂交稻组合生育后期的根系TTC还原力、SOD活性和伤流强度的动态变化及其与再生率的关系进行了研究。
This paper is an attempt to study the changes of TTC deoxidizing ability ﹑ superoxide dismutase ( SOD ) activity and exudates intensity with 10 hybrid rice combinations during late growth stage , and the relationship between activity of root system and rice rationing rating .
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结果说明生姜黄酮的还原力高于BHT和PG。其清除ABTS+、DPPH·、·OH、O2-·的IC50值分别为1.3、23.2、40.1、84.0μg/ml。
The results showed that the ginger flavonoid had higher reduction energy more than BHT and PG , the 50 % elimination value to ABTS + , DPPH ·, · OH , O2 - · were 1.3 , 23.2 , 40.1 , 84.0 μ g / ml.
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结果表明,CrudeCSPS、CSPS-1、CSPS-2、CSPS-3均具有不同的超氧自由基清除能力、羟自由基清除能力、还原力、脂质过氧化抑制活性、金属离子螯合能力。
Results showed that crude CSPS , CSPS-1 , CSPS-2 and CSPS-3 had different superoxide radical scavenging activity , hydroxyl radical scavenging activity , reducing power , lipid peroxidation inhibition effect and ferrous ion chelating activity .
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采用总酚含量、DPPH自由基体系、还原力、O2~-自由基体系及亚油酸体系对樟芝菌粉不同组分的体外抗氧化活性进行综合评价。
The antioxidant activities of different fractions from DMCB of ACSC were evaluated using different in vitro tests : the amount of total phenolic compounds , the DPPH radical scavenging activity , the reducing power , the inhibitory effect on superoxide anion radical and the antioxidant ability .
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还原力以吸光度表示最大可达0.461,对超氧阴离子的清除率为43.13%,清除羟自由基能力达92.83%,抑制蛋白中多不饱和脂肪酸为50.99%,清除DPPH值为96.17%。
Express by absorbance the reducing power could be 0.461 , the clearance rate of the superoxide anion was 43.13 % , scavenging capacity of hydroxyl radical 92.83 % , ability of inhibitory polyunsaturated fatty acids 50.99 % , 96.17 % of scavenge DPPH free radical . 6 .
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絮期(9月17日)0~15cm根系还原力高,根系衰老从底部根顶端开始。
The lateral root reductive activity in 0-15 cm soil layer was higher than that below 15 cm soil layer in open-boll stage ( Sept. 17 ) . The senescence of root system started from the root top in deep soil layer .
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滑菇多糖具有较强的还原力和较强的自由基清除作用。
PNP showed strong in vitro reducing power and free radical-scavenging capacity .
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方法:采用化学模拟体系测定其总抗氧化能力、还原力以及清除DPPH。
Methods : The capacity of total antioxidant and reduction and DPPH .
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不同种类海藻多酚含量和还原力的对比研究
Comparison of Polyphenol Content and Reducing Power of Different Seaweeds
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结果表明,对于费林氏溶液,果糖的还原力比葡萄糖低;
The results showed that the reducing forces of fructose and dextrose were different .
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棉花不同土层侧根还原力差异初探
A Preliminary Study on the Reductive Activity of Cotton Lateral Root in Different Soil Layers