搜索结果: 1-15 共查到“食品生物化学 antioxidant activity”相关记录28条 . 查询时间(0.779 秒)
Antioxidant activity,S-alk(en)yl-l-cysteine sulfoxide and polyphenol content in onion (Allium cepa L.) cultivars are associated with their genetic background
Alliaceae cysteine sulfoxides simple sequence repeat (SSR) marker genotypes secondary metabolites
2016/5/11
Six onion cultivars Bingo, Dormo, Elenka, Elbrus, Spirit, and Sturon grown in the Czech Republic for commercial purposes were analysed to investigate the content of health-promoting compounds. The res...
Bioactive compounds and antioxidant activity of mung bean (Vigna radiata L.), soybean (Glycine max L.) and black bean (Phaseolus vulgaris L.) during the germination process
vitamin C vitamin E water-soluble protein total flavonoids total phenolics
2016/2/23
Bioactive compounds and antioxidant activity of germinated mung bean, soybean and black bean sprouts were investigated to find out the effect of germination and the optimum germination time. We found ...
Evaluation of Antioxidant Activity in Foods with Special Reference to TEAC Method
TEAC Method Foods
2016/6/2
The antioxidant capacity of complex heterogeneous foods and biological systems is affected by many factors. Considering the importance of antioxidants, it is of great interest to know the antioxidant ...
Antioxidant activity and mechanism of action of some synthesised phenolic acid amides of aromatic amines
cinnamic acid derivatives phenylpropenoyl amides of aromatic amines triacylglycerols of sunflower oil
2014/2/24
The antioxidative activities and mechanism of action were studied of eight synthesised cinnamoyl- and hydroxycinnamoyl amides of biogenic amines (caffeoyldopamine, cinnamoyldopamine, p-coumaroyldopami...
Antioxidant activity coefficient, mechanism, and kinetics of different derivatives of flavones and flavanones towards superoxide radical
antioxidant activity coefficient flavonoids binding constant homogeneous kinetics cyclic voltammetry
2014/2/25
A systematic investigation of the electrochemically generated superoxide radical (O2●–) has been conducted in the presence of some flavonoids. Cyclic voltammetry was used to generate O2●– by reducing ...
Antioxidant Activity of Phenolic Components from n-Butanol Fraction (PC-BF) of Defatted Flaxseed Meal
Phenolic Components n-Butanol Fraction
2016/6/1
Flaxseed (Linum usitatissimum L.) is the richest source of phenolic compounds. Owing to high content of phenolics, defatted flaxseed meal exhibited broad spectrum of bioactivities. In the present stud...
Anthocyanin, Total Polyphenols and Antioxidant Activity of Common Bean
Anthocyanin Total Polyphenols Antioxidant Activity
2016/6/1
The anthocyanin, total polyphenol and antioxidant activity of 29 common bean from diverse origins and seed coat color, was assessed. Among the bean genotypes, fourteen were developed by CIAT in variou...
Antioxidant Activity of Whey from Milk Fermented with Lactobacillus Species Isolated from Nigerian Fermented Foods
antioxidant activity DPPH· scavenging activity fermented foods lipid peroxidation
2011/2/24
Eight Lactobacillus isolates obtained from five indigenous fermented foods (ogi, ogi
baba, wara, kunnu and ugba) were investigated. Wara is a dairy-based food while the others
are not dairy-based. T...
Influence of Ultrafiltration on Antioxidant Activity of Tilapia (Oreochromis niloticus) Protein Hydrolysate
Antioxidant activity hydrolysate membrane molecular weight cut-off
2010/9/30
The production of hot w ater dip hydrolysate (HWDH) from tilapia (Oreochromis niloticus) with DH of 25.43% improved its bioactivity. A pressure-driven ultrafiltration (UF) membrane separated HWDH base...
Investigation of Gelatin Polypeptides of Jellyfish (Rhopilema esculentum) for Their Antioxidant Activity in vitro
jellyfish gelatin polypeptide antioxidant activity copper(II)-binding ability
2010/10/14
Jellyfish gelatin was hydrolyzed by different proteases to obtain antioxidative polypeptides.
The gelatin hydrolysate obtained by progressive hydrolysis using trypsin and
Properase E exhibited the h...
Antioxidant activity of selected phenols and herbs used in diets for medical conditions
herbs antioxidant activity DPPH fats
2014/2/27
The antioxidant capacity of some herbs used in dietology practice was determined by the DPPH free radical method, which was calibrated with ascorbic acid. Partially hydrophilic phenolic compounds are ...
丁香活性物质提取工艺优化与抗氧化活性研究（Extracting Technology and Antioxidant Activity of Bioactive Components from Clove）
丁香 抗氧化活性 提取工艺
2010/1/28
对丁香抗氧化活性物质提取工艺及其抗氧化活性进行了研究。结果表明，最佳提取工艺条件为：60%乙醇、提取温度60℃、料液比1∶20和提取时间40min；在此工艺条件下抗氧化活性物质提取率为（10480.4±40.3）μmol/g，获得的相应丁香粗提物具有较强的抗氧化活性，总还原力弱于相同质量浓度的阳性对照BHT和VC（P<0.01或P<0.001），FRAP法抗氧化能力和DPPH自由基清除能力弱于相同...
酪蛋白水解物的酶法修饰优化与抗氧化活性改善（Enzymatic Modification of Casein Hydrolysates by Plastein Reaction and Improvement in Antioxidant Activity）
酪蛋白水解物 抗氧化活性 类蛋白反应
2010/1/28
利用木瓜蛋白酶对酪蛋白水解,并对所得到的水解物进行类蛋白反应修饰，制备高活性抗氧化肽。以水解物的游离氨基含量变化为响应值，利用响应面分析法对类蛋白反应条件进行优化，得到适宜条件为：酶添加量为500U/g，温度30℃，底物质量分数50%，反应时间5.6h。毛细管电泳分析确认，水解物经类蛋白反应修饰后肽分子组成发生变化。抗氧化活性分析结果表明，所制备的3个修饰产物对3种自由基的清除能力显著提高。
Isolation and Characterization of Peptides with Antioxidant Activity Derived from Wheat Gluten
wheat gluten hydrolysate peptide
2009/6/17
Peptides having potent antioxidant activity were separated from the hydrolysate of wheat gluten by ion-exchange and gel filtration chromatography. Peptides obtained by SP Sephadex C-25 chromatography ...
Antioxidant Activity of Hydrophilic Compounds of Defatted Soybean Fermented with Neurospora intermedia（D-Ontjom）
in vivo antioxidant activity defatted soybean ontjom ontjom SOD
2009/6/17
Defatted soybean-ontjom (D-ontjom, defatted soybean fermented with Neurospora intermedia) was prepared to utilize defatted soybean (DSB) as a food source. The antioxidant activity of hydrophilic compo...