Light-induced Variation in Phenolic Compounds in Cabernet Sauvignon Grapes ( L.) Involves Extensive Transcriptome Reprogramming of Biosynthetic Enzymes, Transcription Factors, and Phytohormonal Regulators.

Light environments have long been known to influence grape ( L.) berry development and biosynthesis of phenolic compounds, and ultimately affect wine quality. Here, the accumulation and compositional changes of hydroxycinnamic acids (HCAs) and flavonoids, as well as global gene expression were analyzed in Cabernet Sauvignon grape berries under sunlight exposure treatments at different phenological stages.

[Study on quality standard of Chimonanthus nitens leaf].

Objective: To set up the quality standard of Chimonanthus nitens leaf.

Methods: Five compounds were identified by double-development thin layer chromatography, the plate was colorized with 1% vanillin-H2 SO4 solution and warmed up in 110 degrees C; The content of four compounds was determined by HPLC, the chromatography separation was performed on the Elite hypersil ODS2 (250 mm x 4.6 mm, 5 microm) column with gradient elution.