TL;DR: The analysis of components, modification, synthesis, processing, and applications of Oriental lacquer are reviewed in this article, where the structures and biological activities of lacquer polysaccharides, lipid components including urushiol, laccol, and thitsiol are discussed.
Abstract: The analysis of components, modification, synthesis, processing, and applications of Oriental lacquer are reviewed in this paper. The structures and biological activities of lacquer polysaccharides, lipid components including urushiol, laccol, and thitsiol, the structure and activities of the lacquer enzyme laccase and the advantages of fast drying of refined lacquer over raw lacquer as well as hybrid lacquer are discussed. Lacquer was synthesized based on the components of lacquer sap and a detailed discussion of the enzyme polymerization and auto-oxidation of lacquer are also included. In addition, an overview of lacquerware processing and possible applications of lacquer in industry will be presented.
TL;DR: It was shown that the combination of data related to five distinct groups of pyrolytic markers provided new strong criteria to establish vegetal origin and provenance of Asian artworks, even though they have been largely altered over time.
TL;DR: Recent advances in the research on lacquer allergy including the chemical properties of lacquer lipid components, allergic mechanism analyses, immunological explanations, allergy medications, and the prevention are reviewed combined with the research results from the laboratory.
TL;DR: In this paper, six kinds of Ryukyu lacquerwares were analyzed using pyrolysis-gas chromatography/mass spectrometry to determine the identity of the lacquer source.
TL;DR: In this article, two pieces of lacquer obtained from Ryukyu lacquerwares produced in the 17-19th century in the Urasoe Art Museum were analyzed by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS).