"Smart Extraction Chain" with Green Solvents: Extraction of Bioactive Compounds from Bark Waste for Pharmaceutical, Nutraceutical and Cosmetic Uses.

Secondary metabolites from the sawmill waste bark were extracted using an innovative two-step extraction that includes a first step with supercritical CO (SCO) and a second step using green solvents, namely ethanol, water, and water ethanol mixture. Maceration (M), ultrasound assisted extraction (UAE) and microwave assisted extraction (MAE) techniques were applied in the second step. A total of nineteen extract were obtained and yield were compared.

The Bark of L., a Waste from Sawmill, as a Source of Valuable Compounds: Phytochemical Investigations and Isolation of a Novel Pimarane and a Stilbene Derivative.

In this work, the sawmill waste from debarking was considered as source of valuable phytoconstituents. The extraction was performed using different ethanol/water mixtures, and characterization was obtained by LC-MS. This latter revealed flavonoid glycosides, lignans, and procyanidins.