Sea buckthorn (Hippophae rhamnoides L.) vegetative parts as an unconventional source of lipophilic antioxidants

• Published in: Saudi journal of biological sciences 2016-07, Vol.23 (4), p.512-516
• Main Authors: Górnaś, Paweł, Šnē, Elga, Siger, Aleksander, Segliņa, Dalija
• Format: Article
• Language: English
• Subjects: Leaves; Original; Plant sex; Plastochromanol-8; Sea buckthorn (Hippophae rhamnoides L.); Shoots; Tocopherols; β-Carotene
• ISSN: 1319-562X; 2213-7106
• DOI: 10.1016/j.sjbs.2015.05.015

The profile of lipophilic antioxidants in different vegetative parts (leaves, shoots, buds and berries) was studied in sea buckthorn (Hippophae rhamnoides L.) male and female plants collected in the end of spring. Five lipophilic compounds, i.e. three tocopherol homologues (α, β and γ), plastochromanol-8 and β-carotene, were identified in each vegetative part of male and female sea buckthorn plants at the following concentrations: 7.25–35.41, 0.21–2.43, 0.41–1.51, 0.19–1.79 and 4.43–24.57mg/100g dry weight basis. Additionally, significant amounts of α-tocotrienol (1.99mg/100g dry weight basis) were detected in buds. The α-tocopherol and β-carotene were predominant lipophilic antioxidants in each vegetative part, accounting for 78.3–97.0% of identified compounds. The greatest amounts of lipophilic antioxidants were found in leaves, especially of female plants. Nevertheless, apart from leaves, also shoots of plants of both sexes seem to be a good source of α-tocopherol and β-carotene.