搜索结果: 1-11 共查到“工学 antioxidant activities”相关记录11条 . 查询时间(0.064 秒)
Antioxidant activities of two novel synthetic methylbenzenediol derivatives
2-(tert-butyl)-5-methylbenzene-1 4-diol 3-(tert-butyl)-5-methylbenzene-1 2-diol steric synergist effect DPPH Rancimat test
2014/8/11
2-(tert-Butyl)-5-methylbenzene-1,4-diol and 3-(tert-butyl)-5-methylbenzene-1,2-diol were synthesised by Friedel-Craft reaction of 2-methylbenzene-1,4-diol and 4-methylbenzene-1,2-diol, respectively, w...
Evaluation of in vitro Antioxidant Activities of Lemon Juice for Safety Assessment
Antioxidant Activities Safety Assessment
2016/6/1
Safety assessments of branded lemon juice are currently evaluated with parameters such as the formalin index, acidity, Brix, pH and dry content. In this study, other parameters such as vitamin C, anti...
Isolation of some compounds from nutmeg and their antioxidant activities
malabaricone C oil stability index reducing power radical scavenging activity
2014/2/25
Six compounds, licarin-B (1), dehydrodiisoeugenol (2), malabaricone B (3), malabaricone C (4), β-sitosterol (5), and daucosterol (6) were isolated from the seed (nutmeg) of Myristica fragrans Houtt an...
槟榔籽总酚提取工艺优化与抗氧化活性试验（Optimization of Extraction Technology and Antioxidant Activities of Total Phenol from Betel Nut Seed）
槟榔籽 总酚 提取 响应面法 抗氧化活性
2010/5/5
为了探索槟榔籽中总酚提取的最佳工艺参数，在单因素试验的基础上以提取温度、提取时间和液料比为试验因素，以总酚含量为响应值，采用三因素五水平的响应面分析法进行试验。结果表明，3个因素对槟榔籽总酚提取含量的影响大小顺序为：提取温度、液料比、提取时间；槟榔籽中总酚提取的最佳工艺参数为：提取温度58℃、提取时间4h、液料比47mL/g，总酚含量的预测值为148.09mg/g，验证值为146.63mg/g。试...
Antioxidant and Photo-antioxidant Activities of Chalcone Derivatives
Chalcone Substituent position Conjugated system
2009/8/4
Chalcones are the starting materials for the biosynthesis of flavonoids. Flavonoids are strong antioxidants, which contain many phenolic hydroxyl group(s). However, the antioxidant activities of chal...
Antioxidant and Photo-antioxidant Activities of Phenylpropanoids
Tyrosine Phenylpropanoid p-Coumaric acid Antioxidant activity
2009/8/4
Phenylpropanoids are one of the metabolic products of phenylalanine and tyrosine. The antioxidant and photo- antioxidant activities were studied kinetically and along the metabolic pathway, to invest...
Effects of Cultivation Techniques and Processing on Antimicrobial and Antioxidant Activities of Hericium erinaceus (Bull.:Fr.) Pers. Extracts
Hericium erinaceus antioxidant activity antimicrobial activity
2009/6/24
Hericium erinaceus, a temperate mushroom, is currently cultivated in Malaysia. As cultivation and processing conditions may affect the medicinal properties, antimicrobial and antioxidant properties of...
A Bacterial Strain with Antibacterial and Antioxidant Activities from Tasae, a Burmese Indigenous Alcohol Starter
tasae an indigenous alcohol starter antioxidant and antibacterial activities 16S rDNA sequence
2009/6/18
A total of 85 microbial strains from indigenous alcohol starters of some Asian countries were screened for antibacterial and antioxidant activities. From the result of co-incubation, only one strain, ...
Phenolics, Selenium, Vitamin C, Amino Acids and Pungency Levels and Antioxidant Activities of Two Egyptian Onion Varieties
Phenolics Selenium
2016/5/31
Selenium, vitamin C, pungency, amino acids, phenolics content and antioxidant activities of two Egyptian onion varieties, namely white (Giza-6) and red (Beheri) onions have been studied. Data analysis...
Antioxidant Activities of Total Pigment Extract from Blackberries
antioxidant blackberry hydroxyl radical
2009/3/16
Total pigment has been extracted from blackberries and its antioxidant activity against lipid peroxidation and scavenging capacities towards superoxide anion radicals, hydroxyl radicals and nitrite in...
Antioxidant Activities and Total Phenolics of Acacia Honey
antioxidant activity honey phenolics physicochemical parameters
2014/3/10
The antioxidant activities and total phenolic content of 30 samples of acacia honey from Croatian territory were analysed. Phenolics were determined by the modified Folin-Ciocalteu method, antiradical...