arctostaphylos fruits from Turkey, including gallic, protocatechuic, p-hydroxybenzoic, m-hydroxybenzoic, gentisic, sinapic
, chlorogenic, p-coumaric, ferulic, syringic, caffeic, salicylic, and trans-cinnamic acids.
Among the analysed hydroxycinnamic acids, gallic and p-hydroxybenzoic acids predominated, while among the derivatives of hydroxycinnamic acid it was ferulic, sinapic
and coumaric acids.
10,172,772 B2 (Najla Guthrie, Robert Allen Guthrie); KGK Science, Inc., London, CA, has patented a method for lightening skin that entails topically applying to the skin a composition that consists of a canola extract comprising protocatechuic acid, vanillic acid, caffeic acid, syringic acid, P-coumaric acid, and sinapic
acid (wherein the canola extract comprises at least 30% sinapic
acid) and a cosmetically acceptable carrier.
Plant-based phenolic compounds such as tocopherols, carotenoids, xanthines, gallic acid, caffeic acid, vanillin, sinapic
acid, p-coumaric acid, eugenol, sesamol, vanillic acid, cinnamic acid and resveratrol have antioxidant properties and are produced commercially on a large scale.
High-performance liquid chromatography showed that the phenolic compounds contained gallic acid, sinapic
acid, vanillic acid, syringic acid, protocatechuic acid, p-coumaric acid, chlorogenic acid, caffeic acid and ferulic acid.
Phenylpropanoid derivatives are an important group of low molecular weight phenolic acids, having hydroxycinnamic acid as the main example (p-coumaric, caffeic, ferulic and sinapic
reported the antibacterial effect of chitosan-phytochemical (caffeic acid, ferulic acid, and sinapic
acid) conjugates on acne-related bacteria P.
Kim et al., "Anti-inflammatory effects of sinapic
acid through the suppression of inducible nitric oxide synthase, cyclooxygase-2, and proinflammatory cytokines expressions via nuclear factor-[kappa]B inactivation," Journal of Agricultural and Food Chemistry, vol.
Otherwise, accumulation levels occurred with caffeic, sinapic
, ferulic, and 4,5-dicafeoylquinic acids, which were metabolites detected at concentrations lower than those evaluated in the controls at zero time.
Periasamy, "Evaluation of antihyperglycemic effect of sinapic
acid in normal and streptozotocin-induced diabetes in albino rats," Global Journal of Pharmacology, vol.
Some of the standards, ferulic acid, coumeric acid, gallic acid, syringic acid, sinapic
acid, chlorogenic acid, vanilic acid and quercetin were used.
Its active ingredients were identified by the quality control of the manufacturer to contain the following: Phenolic acids (caffeic acid, tocopherol, sinapic
acid, cinnamic acid, coumaric acid and ferulic acid) and flavonoids (quercetin, kaempferol, rutin and apigenin) together with amino acids and vitamins.