搜索结果: 1-5 共查到“农学总论 Antioxidant activity”相关记录5条 . 查询时间(0.093 秒)
In Vitro Antioxidant Activity of Different Parts of the Plant Diospyros discolor
Diospyros discolor Antioxidant activity DPPH Total phenolic content
2010/11/15
This study was conducted to evaluate the antioxidant activity of extracts from different parts of the plant Diospyros discolor including leaf, fruit and bark. Methanol was used as solvent and antioxid...
Evaluation on Antioxidant Activity, Antifungal Activity and Total Phenols of 11 Selected Commercial Malaysian Timber Species
basidiomycete 1,1-diphenyl-2-picrylhydrazyl Folin-Ciocalteu method Gloeophyllum trabeum Pycnoporus sanguineus
2010/10/25
Antioxidant activity [1,1-diphenyl-2-picrylhydrazyl (DPPH) assay], antifungal activity against
Gloeophyllum trabeum (brown-rot) and Pycnoporus sanguineus (white-rot), and total phenol content (Folin-...
Influence of PGPR and AMF on antioxidant activity, lycopene and potassium contents in tomato
Fruit quality mycorrhiza rhizobacteria tomato
2011/1/11
In this study, the impact of inoculating tomato (Lycopersicon esculentum F1 Hybrid, GS -15) roots with plant growth-promoting rhizobacteria (PGPR) and arbuscular mycorrhiza fungi (AMF) on fruit qualit...
洋葱中黄酮类化合物体外抗氧化活性研究（Study on Antioxidant Activity in Vitro of Onion Flavonoids）
洋葱 黄酮类化合物 抗氧化活性
2009/9/11
通过测定洋葱中黄酮类化合物对Fe2+的螯合能力，对DPPH自由基、亚硝酸盐的清除能力，对卵黄脂蛋白脂质过氧化及油脂过氧化的抑制作用，研究了其体外抗氧化活性。结果表明：洋葱中黄酮类化合物对Fe2+具有很强的螯合能力，对DPPH自由基、亚硝酸盐具有良好的清除能力，对卵黄脂蛋白脂质过氧化及油脂过氧化具有明显的抑制作用，即洋葱中黄酮类化合物具有良好的体外抗氧化活性。
酶法提高大豆糖蜜抗氧化活性及其机理（Enhanced Antioxidant Activity of Soybean Molasses Using Cellulase）
大豆糖蜜 抗氧化活性 生物酶解
2009/5/22
为提高大豆糖蜜的抗氧化活性，将大豆糖蜜溶液与纤维素酶溶解于pH值5.0的50mmol/L Tris-HCl 缓冲液中，于50℃保温30min。对比了酶解前后大豆糖蜜的清除DPPH自由基能力和还原力，并分析了异黄酮的组成差异。结果表明：达到50% DPPH自由基清除率，需未处理样品17.15g/L，而处理样品仅为9.19g/L。在相同的质量浓度下，处理后的大豆糖蜜还原力要高于未被处理的大豆糖蜜。纤维...