搜索结果: 1-15 共查到“食品科学技术 polyphenol”相关记录24条 . 查询时间(0.187 秒)
Validating polyphenol intake estimates from a food-frequency questionnaire by using repeated 24-h dietary recalls and a unique method-of-triads approach with 2 biomarkers
Adventist Health Study method of triads phytochemicals polyphenols urinary polyphenols
2018/11/13
Background: The assessment of polyphenol intake in free-living subjects is challenging, mostly because of the difficulty in accurately measuring phenolic content and the wide presence of phenolics in ...
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...
Characterisation of polyphenol oxidase and peroxidase and the role in browning of loquat fruit
Eriobotrya japonica PPO POD
2015/3/30
Polyphenol oxidase (PPO) and peroxidase (POD) were extracted from a new loquat fruit cultivar (Ninghaibai) and characterised using reliable spectrophotometric methods. In both cases, the optimum pH fo...
Influence of Thermal Treatment on Polyphenol Extraction of Wine cv. André
temperature wine grape colour
2015/3/4
The extraction of polyphenols and colour parameter development of the grape variety André processed by thermal
maceration techniques were examited.
Characterisation of polyphenol oxidase from Melissa officinalis L. subsp. officinalis (lemon balm)
lemon balm protein enzyme kinetics inhibition
2014/2/24
Polyphenol oxidase (PPO) from Melissa officinalis L. subsp. officinalis (lemon balm) was partially purified by ammonium sulphate precipitation and dialysis; and then it was characterised in detail in ...
Influence of Developmental Stage on Activities of Polyphenol Oxidase, Internal Characteristics and Colour of Lettuce cv. Grand Rapids
Developmental Stage Polyphenol Oxidase
2016/5/31
An analyzing study to evaluate the relationship between Polyphenol Oxidase (PPO) activity, internal qualities and degree of browning was conducted on lettuce var. Grand Rapids in order to understand t...
Experimental and Modelling Study of Enzymatic Oxidation of 5-o-Caffeoylquinic Acid by Polyphenol Oxidases
chlorogenic acids 5-CQA enzymatic oxidation polyphenol oxidases
2011/2/24
A set of experiments to investigate the enzymatic oxidation of 5-o-caffeoylquinic acid
with polyphenol oxidases was carried out in the temperature range from 18 to 39 °C. The
kinetic data were obtai...
EFFECT OF APPLE POLYPHENOL ON OXIDATIVE STABILITY OF SLICED COOKED CURED BEEF AND PORK HAMS DURING CHILLED STORAGE
apple polyphenol oxidative stability beef pork hams chilled
2012/8/13
The effects of apple polyphenol (AP) on color, lipid and protein oxidation in sliced cooked cured hams (SCCHs) made of pork and beef during chilled storage were investigated. SCCH samples with no anti...
Variation of Total Polyphenol and Polyphenol Oxidase Activity during Maturation of Mango Fruit (Mangifera indica L. ‘Irwin’) Cultured in a Plastic House
‘Irwin’ mango fruit maturation of mango variation of total polyphenol
2009/7/8
Variation of total polyphenol (TPP) and polyphenol oxidase activity (PPO) was investigated in ‘Irwin’ mango fruit in various color stages of development: green, purple, purplish red and red. Fruits us...
Effects of Polyphenol Oxidase Activity in Wheat Flour on Protein-Bound 5-S-Cysteinyldopa Formation in Gluten
5-S-cysteinyl-3 4-dihydroxyphenylalanine (5-S-cysteinyldopa) polyphenol oxidase
2009/7/8
The effects of polyphenol oxidase (PPO) activity in wheat flour on the formation of protein-bound 5-S-cysteinyl-3, 4-di-hydroxyphenylalanine (5-S-cysteinyldopa) in gluten have been studied. The wheat ...
Polyphenol, Anthocyanin and Resveratrol Mass Fractions and Antioxidant Properties of Cranberry Cultivars
cranberry polyphenols anthocyanins resveratrol
2009/6/24
The study involved an evaluation of five cranberry cultivars grown in Poland: Ben Lear, Pilgrim, Stevens, Early Richard and Bergman. The reference sample comprised wild-grown common cranberry (Vaccini...
DPPH Radical-Scavenging Activity and Polyphenol Content in Dried Fruits
dried fruits fresh fruits ascorbic acid
2009/6/18
The 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity and polyphenol content of 25 dried fruits were evaluated and compared with fresh fruits. The contribution of ascorbic acid to this ...
Comparison of Soluble and Plastidal Polyphenol Oxidase in Mature Apples
polyphenol oxidase plastid subcellular localization
2009/6/17
Polyphenol oxidase (PPO) is transported to plastid after translation. However, we often detect PPO activity in a soluble fraction of apple. Here we examined the location of PPO in retail apples. PPO a...
Influence of Polyphenol and Ascorbate Oxidases during Cooking Process on the Radical-Scavenging Activity of Vegetables
radical-scavenging activity polyphenol oxidase polyphenol
2009/6/17
The influence of polyphenol oxidase and ascorbate oxidase on radical-scavenging activity and contents of total phenol, chlorogenic acid, and ascorbic acid in vegetables during the cooking process were...
Purification and Characterization of Wheat（Triticum aestivum）Polyphenol Oxidase
wheat polyphenol oxidase purification
2009/6/10
Polyphenol oxidase was purified to homogeneity from Japanese wheat (Triticum aestivum cv. Tohoku 198) bran, using 4-methylcatechol as a substrate. The enzyme was purified 1670-fold with a recovery of ...