Red seaweeds strengthening the nexus between nutrition and health: phytochemical characterization and bioactive properties of Grateloupia turuturu and Porphyra umbilicalis extracts

The Red Seaweed Grateloupia turuturu Prevents Epidermal Dysplasia in HPV16-Transgenic Mice

“…The phytochemical profile of a G. turuturu batch harvested in the same geographic area as that of the present study (i.e., the NW coast of Portugal, at a distance of approximately 40 km) was previously studied using liquid chromatography and gas chromatography coupled with mass spectrometry and was characterized by an abundance of polar lipids (phospholipids, glycolipids, betaine lipids and phosphingolipids) with important antioxidant and anti-inflammatory properties [25]. In line with this, a G. turuturu batch from exactly the same site (i.e., Aguda beach, NW coast of Portugal) as that used in the present study, and harvested in the same month (i.e., September), showed favorable bioactivities and proved to be rich in bioactive compounds, in particular mycosporine-like amino acids such as shinorine, palythine, porphyra-334 and asterina-330 [26]. Therefore, it can be assumed that the current G. turuturu batch yields the same (or very similar) phytochemical profile as that described in the abovementioned studies [25,26].…”

“…In line with this, a G. turuturu batch from exactly the same site (i.e., Aguda beach, NW coast of Portugal) as that used in the present study, and harvested in the same month (i.e., September), showed favorable bioactivities and proved to be rich in bioactive compounds, in particular mycosporine-like amino acids such as shinorine, palythine, porphyra-334 and asterina-330 [26]. Therefore, it can be assumed that the current G. turuturu batch yields the same (or very similar) phytochemical profile as that described in the abovementioned studies [25,26].…”

Phytochemical Composition and Antioxidant, Anti-Acetylcholinesterase, and Anti-α-Glucosidase Activity of Thymus carnosus Extracts: A Three-Year Study on the Impact of Annual Variation and Geographic Location

“…The exception is L2 harvest of 2018, in which no significant differences were found between AD and HE extracts, identical to that reported for T. fragrantissimus [ 30 ]. However, Folin-Ciocalteau method limitations for TPC quantification are well described, since the reagent can be reduced by other chemical components in the extracts, such as, for example, proteins, thiols, carbohydrates, and amino-acids, where it is likely that AD extracts contain other reducing compounds, which might contribute to TPC overestimation [ 37 ]. This observation is supported by ODC and TFC quantification ( Table 1 ), where most HE extracts have significantly higher ODC and TFC contents compared to the respective AD extract, L1 2019′s harvest being an exception.…”