Highly polymerized procyanidins in brown soybean seed coat with a high radical-scavenging activity.

  title={Highly polymerized procyanidins in brown soybean seed coat with a high radical-scavenging activity.},
  author={Yasuhiro Takahata and Mayumi Ohnishi-Kameyama and Shu Furuta and M. Takahashi and Ikuo Suda},
  journal={Journal of agricultural and food chemistry},
  volume={49 12},
1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity of the 70% aqueous acetone extract from the seed coat of the brown soybean variety, Akita-Zairai, was investigated. The activity of the seed coat of Akita-Zairai was much higher than that of three other reddish-brown varieties, but lower than that of two black varieties, and was closely dependent on the content of phenolic compounds. In the LH20 column chromatography of Akita-Zairai, high DPPH radical-scavenging activities were… 

Polymeric procyanidins as radical-scavenging components in red-hulled rice.

The major components responsible for the radical scavenging in the acetone extract from red-hulled rice were identified as procyanidins by acidic hydrolysis, vanillin assay, and Sephadex LH-20 chromatography.

Antioxidant properties, phytochemical composition, and antiproliferative activity of Maryland-grown soybeans with colored seed coats.

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In both the extraction and isolation process, 50% aqueous ethanol led to superior total tannins and polyphenols content as well as significantly higher antioxidant activity, and the predominant components responsible for antioxidant activities were characterized as hydrolysable tannin.

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DPPH Radical Scavenging Capacity of Phenolic Extracts from African Yam Bean (Sphenostylis stenocarpa)

The phenolic extracts of the seeds of African yam bean (Sphenostylis stenocarpa) were studied using different extraction solvents (70% ethanol, 80% acetone and acidic 70% acetone) and two heat

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Investigation of commonly used solvent systems affected the yields of phenolic substances and the antioxidant capacity of extracts from 8 major classes of food legumes indicated that solvents with different polarity had significant effects on total phenolic contents, extracted components, and antioxidant activities.

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Scarlet runner beans (SRB) are a valuable source of many nutrients, including proteins, starch, dietary fiber, and oligosaccharides, and are used in various foods in Japan. In this study, we analyzed