ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,472, issued on June 3, was assigned to NOF Corp. (Tokyo).
"Plant-derived proteoglycan and application thereof" was invented by Masao Hara (Tsukuba, Japan) and Mamoru Tsuchida (Tsukuba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a plant proteoglycan obtained from gum arabic obtained from a trunk or branch of Acacia plant (Acacia Senegal Willdenow or Acacia Seyal Delile), having a weight average molecular weight of 900,000-3,500,000, and having a total aldehyde content of not more than 2.0 micro metreol equivalent/g. A plant proteoglycan having physiological activity equal to or higher than that of animal prot...