摘要:
Water soluble antioxidant composition derived from natural sources having less than 10 ppm chlorinated hydrocarbons, less than 0.5% by weight fat, at least 15% by weight in total polyphenolic antioxidants, less than 5% by weight purine components, less than 0.5% by weight caffeine, and a Trolox Equivalent Antioxidant Capacity value of at least 0.4. The composition is suitable for use in pharmaceuticals, cosmetic, and nutritional compositions.
摘要:
The present invention provides two novel regulatory genes and encoded proteins which can be used to alter the biosynthesis and accumulation of condensed tannin levels in plants and plant tissues. The present invention further encompasses transgenic constructs containing the novel regulatory genes herein referred to as Ulimyc, Corniculmyc and Japmyc, for use in the transformation of plants and plant tissues and transgenic plants containing such constructs. The identification and characterization of these novel genes provide a mechanism for altering tannin production in plants and allows one to alter such levels to produce a variety of benefits in the field of agriculture, land reclamation animal farming and food technology in general.
摘要:
A process is provided for making (-)-epigallocatechin gallate (EGCG) by subjecting a green tea extract to chromatography on a macroporous polar resin, eluting EGCG from the resin with a polar elution solvent, optionally concentrating the eluate, optionally regenerating the resin by desorbing the remaining catechins, and optionally concentrating the desorbed catechins.
摘要:
Disclosed are novel coumarin based fluorogenic compounds useful in assaying for biological activity. Specifically, these fluorogenic compounds exhibit fluorescence at particular wavelengths when cleaved by target enzymes. Preferred compounds include sugar and peptide derivatives of umbelliferone derivatives bearing a heterocyclic five membered ring at the 3-position. These compounds can be used for rapidly detecting food pathogens and for determining sterilization effectiveness. The compounds may also be used in a form bounded to a polymeric support or to a biomolecule or macromolecule.
摘要:
The present invention relates to a glycoconjugate immunoreactive with Toxoplasma gondii antibodies, (monoclonal) antibodies against these glycoconjugates, and cell lines capable of producing monoclonal antibodies. The invention is further concerned with immunochemical reagents and methods for the detection of T. gondii or antibodies directed agains T. gondii. Furthermore the invention relates to a therapeutic reagent for the inhibition of replication of T. gondii parasites and a method for the production of a live attenuated T. gondii vaccine. It has now been found, and in contrast with earlier publications in this art, that several glycoconjugates are immunoreactive with Toxoplasma gondii specific antibodies comprising a glycan core structure having general formula (I) wherein R1nullHydrogen, nullPO 3 nullCH 2 nullCH 2 nullNH 2 (ethanolamine-phosphate), or nullPO 3 nullCH 2 nullCH 2 nullNHnullX, wherein Xnulla T. gondii specific antigen; wherein R2nullnullnullOnullR4, null(1-4)-O-anhydromannitol or null(1-4)-O-glucoseamine optionally null(1-6)-linked to the inositol moiety of a phosphatidylinositol membrane anchor; wherein R3nulla monosaccharide moiety, wherein R4nullHydrogen or nullLnullR5, wherein Lnulla bivalent organic radical and R5nulla functional group that allows coupling to a carrier. A preferred embodiment of the monosaccharide moiety is a hexose moiety, more preferred is a glucose moiety, and most preferred is a glucose moiety which is bonded to the GalNAc-moiety by an null1,4 glycosidic bond. It has been found that the glycoconjugates according to the present invention are particularly suitable for diagnosing T. gondii infected humans.
摘要:
The present invention relates to processes for converting clarithromycin Form 0 to clarithromycin Form II, which include slurrying clarithromycin the Form 0 in water. The present invention also relates to processes for the preparation of clarithromycin Form II by converting erythromycin A to clarithromycin and thereafter converting clarithromycin Form 0 to clarithromycin Form II by slurrying. The present invention further relates to the novel clarithromycin polymorph Form IV, a process for its preparation, pharmaceutical compositions comprising the compound, and methods of using the compound as a therapeutic agent.
摘要:
3-Deoxyflavonoid compounds and methods for inhibiting T-cell activity and treating diseases and disorders (e.g., autoimmune disorders, inflammatory disorders, diabetes, ALS, MS, rheumatoid arthritis, etc.). In some cases the efficacy and/or duration of action of luteolin and/or other 3-dioxyflavinoid compounds may be increased by administering such compounds along with Rutin, a Rutin congener and/or a Rutin derivative. Also, in some cases, first pass metabolism of luteolin or other 3-deoxyflavinoids may be avoided by administering such compounds by parenteral routes (e.g., sublingual, buccal, intranasal, injection, etc.).
摘要:
Provided are a process for producing purified anthocyanidin glucoside in which a rhamnose end of anthocyanidin rutinoside is cleaved using rhamnosidase to convert the anthocyanidin rutinoside component into anthocyanidin glucoside, the anthocyanidin glucoside component being then purified and isolated; or a crystalline anthocyanidin glucoside salt obtained by further crystallizing the purified anthocyanidin glucoside and a process for producing the same. Also provided are a process for producing purified anthocyanidin rutinoside in which a glucose end of anthocyanidin glucoside is cleaved using null-glucosidase to degrade and remove the end, the anthocyanidin rutinoside component being then purified and isolated; or a crystalline anthocyanidin rutinoside salt obtained by further crystallizing the purified anthocyanidin rutinoside and a process for producing the same.
摘要:
The invention relates to a process for the preparation of flavone derivatives in which a 2-hydroxyacetophenone compound is metallated using a lithium compound at low temperatures and subsequently reacted with a keto compound, and where the ratio of the molar equivalents of lithium compound to the 2-hydroxyacetophenone compound functional groups to be metallated is from 1 to 1.2. The resultant null-diketone compound is subsequently cyclised with warming in an acidic medium.
摘要:
The invention concerns: (i) null4-(4-cyanobenzyl)phenylnullglycopyranosides of formula (I) wherein; the glycopyranosyl group R represents a null-D arabinopyranosyl, null-D-lyxopyranosyl, null-D-ribopyranosyl, null-D-mannopyranosyl, null-L-arabinopyranosyl, null-L-xylopyranosyl, null-L-arabinopyranosyl, null-L-xylopyranosyl or null-L-rhamnopyranosyl group; and (ii) their esters resulting from esterification of at least a OH function of each glycopyranosyl group with a C2-C4 alkanoic or cycloalkanoic acid, as novel industrial products. Said novel null4-(4-cyanobenzyl)phenylnullglycopyranosides are useful in therapy for fighting against athermatous plaque.