A systematic review of the potential uses of pine bark in food industry and health care

A great number of plants have been studied in recent times in order to identify and isolate new components with nutraceutical properties. In addition, there is a growing interest in the re-valorization of industrial byproducts as a source of bioactive molecules. The present study highlights the potential of pine bark extract as a source of antioxidant and treatment diseases. Pine bark has a great content of bioactive molecules including polymeric flavanols, tannic acid, flavonoids and other phenolic acids such as caffeic or protocatechuic acid. Herein, we summarize the most recent uses of pine bark extracts in the food industry and for biomedical purposes. Regarding the food industry, pine bark extracts have been successfully used as antioxidants in the meat industry and have been proposed as interesting additives for the juice industry and Songzhen noodles production. On the other hand, different Pinus spp bark extracts have been tested against a wide range of disorders -cancer, diabetes mellitus, hypertension, atherosclerosis, neuroprotective effect and other oxidative stress and inflammatory-related diseases. Both in vitro and in vivo assays suggest a promising future for pine as an adjuvant therapy. [Display omitted] •PBE is a source of flavanols and flavonoids such as catechin and taxifolin.•PBE avoid protein oxidation and may be used as antioxidants in meat industry.•Therapeutic potential of PBE is due to antioxidant and anti-inflammatory action.•PBE has a potential role in the treatment of oxidative stress disorders.