Phytochemical Composition and Biological Activity of Berries and Leaves from Four Romanian Sea Buckthorn (Hippophae Rhamnoides L.) Varieties

Abstract

Hippophae rhamnoides L. is an important source of natural antioxidant and antimicrobial agents. Phytochemical compounds, antioxidant and antibacterial properties of berries, and leaf extracts from four Romanian sea buckthorn cultivars were investigated. Large differences in the content of total polyphenols and flavonoids between the varieties were observed. HPLC analysis of the polyphenolic compounds showed greater differences in content in leaves than in berries. This study confirmed that sea buckthorn leaves and berries are a rich source of phenolic compounds, especially quercetin derivatives and hydrocinnamic acid derivatives. Five carotenoid compounds were identified in the berries: lutein, zeaxanthin, β-cryptoxanthin, cis-β-carotene, and β-carotene. From the results obtained in this study, it can be stated that the varieties whose berries yielded the highest quantities of polyphenols, flavonoids, and antioxidant activity, can be ranked as follows: SF6 > Golden Abundant > Carmen > Colosal, and for leaf extracts the ranked order is SF6 > Golden Abundant > Colosal > Carmen. A strong correlation between the total flavonoid yield and antioxidant activity (r = 0.96), was observed. All extracts showed antibacterial activity against S. aureus, B. cereus, and P. aeruginosa, however extracts from berries were less potent than extracts from leaves.

Assessment of cytotoxicity and antioxidant properties of berry leaves as by-products with potential application in cosmetic and pharmaceutical products

“…The right line of defense is using substances that show strong antioxidant activity. Their activity is most often determined by the presence of polyphenolic compounds 1 – 4 , which have a positive effect on a number of enzyme systems and functional proteins, cell signaling or maintaining or restoring the redox balance, which can be disturbed as a result of oxidative stress 5 , 6 . Due to the multidirectional impact of antioxidants on the human body, the pharmaceutical and cosmetics industry has been looking for substances exhibiting strong antioxidant activity for many years.…”

Flavonoids from sea buckthorn: A review on phytochemistry, pharmacokinetics and role in metabolic diseases

“…It was observed that the quantities of flavonoids in these varieties could be ranked as follows: SF6 > Golden Abundant > Colosal > Carmen, and the ranked order for berry extracts was SF6 > Golden Abundant > Carmen > Colosal. Moreover, in all leaf extracts, the concentration and the differences in the content of FSBT were significantly greater than in the berry extracts (Criste et al, 2020). The content and variety information reflect the genetic diversities and environmental factors in synthesis and accumulation of FSBT in different species and can be helpful for the selection of highactivity cultivars related to FSBT and conditions for further cultivation.…”

Bioactive Compounds, Antioxidant Activities, and Health Beneficial Effects of Selected Commercial Berry Fruits: A Review

“…Phenolic compounds also include primarily proanthocyanidins, gallocatechins and flavonol glycosides (Dienaitė, Pukalskas, Pukalskienė, Pereira, Matias, & Venskutonis, 2020) (Table 1). Criste et al, (2020) also reported that seabuckthorn berries are great source of phenolic compounds such as derivatives of quercetin and hydrocinnamic acid. (Criste et al, 2020).…”

“…Criste et al, (2020) also reported that seabuckthorn berries are great source of phenolic compounds such as derivatives of quercetin and hydrocinnamic acid. (Criste et al, 2020).…”

“…It was also found that antioxidant activity of the lipophilic extract correlated with the total carotenoids content. A strong correlation existed between flavonoid content in seabuckthorn and their antioxidant activities (r = 0.96) (Criste et al, 2020). To investigate other health benefits recently Guo et al, (2020) reported that administration of freeze-dried seabuckthorn powder lowered body weight, Lee's index, adipose tissue weight, liver weight, and serum lipid levels induced by obesity (Guo, Han, Li, & Yu, 2020).…”