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Impact of freezing on flavonoids/radical-scavenging activity of two onion varieties
Allium cepa L. anthocyanins flavonols domestic storage frozen onions
2015/7/28
Flavonols, anthocyanins, and radical-scavenging activity of two Portuguese onion cultivars (Branca da Póvoa, white; and Vermelha da Póvoa, red) were evaluated simulating domestic freezing conditions (...
Scavenging Activity of Different Garlic Extracts and Garlic Powder and their Antioxidant Effect on Heated Sunflower Oil
Different Garlic Extracts Garlic Powder
2015/6/2
Seven garlic extracts were prepared in different solvents. The extract yield ranged from 0.36 (n-hexane) to 71.73% water (H2O at 50°C), total phenolic content from 11.16 methanol/water (MeOH/H2O, 1:1)...
Effect of cooking methods on total phenolic and carotenoid amounts and DPPH radical scavenging activity of fresh and frozen sweet corn (Zea mays) kernels
Zea mays L. cooking process phenolics β-carotene antioxidan
2013/2/24
We evaluated the effect of three different cooking methods on antioxidant content and radical scavenging activity of sweet corn. Both fresh and frozen sweet corn kernels were boiled, microwaved, and s...
Effects of Leaf Collection Time and Sex of the Donor Tree on Radical Scavenging Activity of the Current Leaf in Red Bayberry
distinction of sex Bayberry
2009/7/8
The DPPH radical scavenging activities of different parts (leaf, stem, immature fruit, mature fruit and seed) of red bayberry were analyzed by extraction with hot water and 80% ethanol. The highest ac...
Scavenging Activity of Enzymatic Hydrolysates from Wheat Bran
antioxidant activity enzymatic hydrolysates iron chelation
2009/6/24
Wheat bran was destarched and deproteinated by α-amylase, protease and amyloglucosidase successively, and further hydrolyzed using Bacillus subtilis xylanases. The yield of enzymatic hydrolysates from...
Radical-Scavenging Activity and Isoflavone Content of Sufu（Fermented Tofu）Extracts from Various Regions in China
radical-scavenging activity sufu isoflavone
2009/6/18
Water extracts and 50% ethanol extracts of 14 samples of sufu (fermented tofu) produced in various regions of China were prepared, and their DPPH (α,α-Diphenyl-β-pricryl-hydrazyl) radical-scavenging a...
Radical-Scavenging Activity: Role of Antioxidative Vitamins in Some Fish Species
radical-scavenging activity fish ascorbic acid tocopherol
2009/6/18
To evaluate fish as free radical scavengers in the human diet, we examined the radical-scavenging activity of some marine fish tissue commonly consumed in Japan, using the 1,1-diphenyl-2-picrylhydrazy...
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 ...
Trial Production of Tsukudani with Strong Scavenging Activity against Active Oxygen Species
Tsukudanl active oxygen species Maillard reaction
2009/6/18
A trial production was conducted of Tsukudani with strong scavenging activity against active oxygen species by acceleration of the Maillard reaction and addition of sub materials with the activity. As...
Radical-Scavenging Activity of Vegetables and the Effect of Cooking on Their Activity
radical-scavenging activity 1,1-diphenyl-2-picrylhydrazyl ascorbic acid
2009/6/18
The radical-scavenging activity of vegetables was measured using the 1,1-diphenyl-2-picrylhydrazyl-HPLC method, and the effect of cooking on this activity was determined. The content of ascorbic acid ...
Radical Scavenging Activity of Japanese Black Tea, Toyama Kurocha
radical scavenging activity DPPH method late-fermented tea
2009/6/17
The radical scavenging activity of the Japanese late-fermented black tea, Toyama Kurocha, was investigated. The activity was determined by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method, and its radi...
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...
Evaluation of DPPH-Radical-Scavenging Activity and Antimutagenicity and Analysis of Anthocyanins in an Alcoholic Fermented Beverage Produced from Cooked or Raw Purple-Fleshed Sweet Potato（Ipomoea Batatas cv. Ayamurasaki）Roots
purple-fleshed sweet potato anthocyanin alcoholic beverage
2009/6/10
We investigated the 1,1-diphenyl-2-picrylhydrazyl (DPPH)-radical-scavenging activity and antimutagenicity of alcoholic fermented beverages produced from cooked or raw purple-fleshed sweet potato (Ipom...
Rapid and Sensitive Method for Evaluation of Radical-Scavenging Activity Using Peroxyl Radicals Derived from 2,2′-Azobis（2-amidinopropane）Dihydrochloride Combined with Luminol Chemiluminescence
radical-scavenging activity AAPH luminol
2009/6/10
A rapid and sensitive method for evaluation of the radical-scavenging activity, which uses 2,2′-azobis (2-amidinopropane) dihydrochloride (AAPH) as a radical generator in combination with a luminol ch...
Radical-Scavenging Activity in vitro of Lemon Peel Fermented with Aspergillus saitoi and Its Suppressive Effect against Exercise-Induced Oxidative Damage in Rat Liver
antioxidative activity Aspergillus saitoi exercise fermentation
2009/5/31
We prepared fermented lemon peel (FLP) with high antioxidative activity by fermentation of the lemon peel (LP) with Aspergillus saitoi. The antioxidative activity of LP and FLP was examined by the rad...