Sea Buckthorn (<em>Hippophae rhamnoides</em>) Waste Biomass after Harvesting as a Source of Valuable Biologically Active Compounds with Nutraceutical and Antibacterial Potential
Sarmite Janceva,
Anna Andersone,
Liga Lauberte,
Oskars Bikovens,
Vizma Nikolajeva,
Lilija Jashina,
Natalija Zaharova,
Galina Telysheva,
Maris Senkovs,
Gints Rieksts,
Anna Ramata-Stunda,
Jelena Krasilnikova
Affiliations
Sarmite Janceva
Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, LV-1006 Riga, Latvia
Anna Andersone
Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, LV-1006 Riga, Latvia
Liga Lauberte
Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, LV-1006 Riga, Latvia
Oskars Bikovens
Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, LV-1006 Riga, Latvia
Vizma Nikolajeva
Faculty of Biology, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia
Lilija Jashina
Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, LV-1006 Riga, Latvia
Natalija Zaharova
Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, LV-1006 Riga, Latvia
Galina Telysheva
Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, LV-1006 Riga, Latvia
Maris Senkovs
Faculty of Biology, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia
Gints Rieksts
Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, LV-1006 Riga, Latvia
Anna Ramata-Stunda
Faculty of Biology, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia
Jelena Krasilnikova
Department of Biochemistry, Riga Stradiņš University, Dzirciema Street 16, LV-1007 Riga, Latvia
For sustainable sea buckthorn (Hippophae rhamnoides) berry production, the task at hand is to find an application for the large amount of biomass waste arising at harvesting. Sea buckthorn (SBT) vegetation is currently poorly studied. The purpose of this research was to assess the composition and potential of SBT twigs as a source of valuable biologically active substances. Water and 50% EtOH extracts of twigs of three Latvian SBT cultivars with a high berry yield and quality, popular for cultivation in many countries (H. rhamnoides ‘Maria Bruvele’, ‘Tatiana’, ‘Botanicheskaya Lubitelskaya’), were investigated for the first time. The phytochemical composition (UHPLC-ESI-MS/MS analysis) and biological activity of the obtained hydrophilic extracts were determined. The highest yield of polyphenolic compounds and serotonin was observed for ‘Maria Bruvele’. Hydrophilic extracts were investigated for radical scavenging activity (DPPH˙ test), antibacterial/antifungal activity against five pathogenic bacteria/yeast, cytotoxicity, and the enzymatic activity of alpha-amylase (via in vitro testing), which is extremely important for the treatment of people with underweight, wasting, and malabsorption. The results showed a high potential of sea buckthorn biomass as a source of valuable biologically active compounds for the creation of preparations for the food industry, nutraceuticals, and cosmetics.
