Antimicrobial activity of seed, pomace and leaf extracts of sea buckthorn (Hippophae rhamnoides L.) against foodborne and food spoilage pathogens

2012 ◽  
Vol 11 (45) ◽  
Author(s):  
Richa Arora
Keyword(s):  
Antimicrobial Activity ◽  
Sea Buckthorn ◽  
Hippophae Rhamnoides ◽  
Food Spoilage ◽  
Leaf Extracts ◽  
Hippophaë Rhamnoides ◽  
Hippophae Rhamnoïdes L

Sea Buckthorn (Hippophae rhamnoides L.) Leaf Extracts Protect Neuronal PC-12 Cells from Oxidative Stress

2017 ◽  
Vol 27 (7) ◽  
pp. 1257-1265 ◽  
Author(s):  
Chi Heung Cho ◽  
Holim Jang ◽  
Migi Lee ◽  
Hee Kang ◽  
Ho Jjn Heo ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Sea Buckthorn ◽  
Hippophae Rhamnoides ◽  
Leaf Extracts ◽  
Pc 12 Cells ◽  
Hippophaë Rhamnoides ◽  
Hippophae Rhamnoïdes L

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

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1170 ◽  
Author(s):  
Adriana Criste ◽  
Adriana Cristina Urcan ◽  
Andrea Bunea ◽  
Flavia Roxana Pripon Furtuna ◽  
Neli Kinga Olah ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antimicrobial Agents ◽  
Antibacterial Properties ◽  
Sea Buckthorn ◽  
Hippophae Rhamnoides ◽  
Leaf Extracts ◽  
Quercetin Derivatives ◽  
Hippophaë Rhamnoides ◽  
Hippophae Rhamnoïdes L ◽  
Β Carotene

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.

scholarly journals Effect of Ozone Treatment on the Quality of Sea Buckthorn (Hippophae rhamnoides L.)

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 847
Author(s):  
Anita Zapałowska ◽  
Natalia Matłok ◽  
Miłosz Zardzewiały ◽  
Tomasz Piechowiak ◽  
Maciej Balawejder
Keyword(s):  
Mechanical Properties ◽  
Volatile Compounds ◽  
Sea Buckthorn ◽  
Hippophae Rhamnoides ◽  
Ozone Treatment ◽  
Aerobic Bacteria ◽  
Hippophaë Rhamnoides ◽  
Hippophae Rhamnoïdes L ◽  
Ozonation Process

The aim of this research was to show the effect of the ozonation process on the quality of sea buckthorn (Hippophae rhamnoides L.). The quality of the ozonated berries of sea buckthorn was assessed. Prior to and after the ozone treatment, a number of parameters, including the mechanical properties, moisture content, microbial load, content of bioactive compounds, and composition of volatile compounds, were determined. The influence of the ozonation process on the composition of volatile compounds and mechanical properties was demonstrated. The ozonation had negligible impact on the weight and moisture of the samples immediately following the treatment. Significant differences in water content were recorded after 7 days of storage. It was shown that the highest dose of ozone (concentration and process time) amounting to 100 ppm for 30 min significantly reduced the water loss. The microbiological analyses showed the effect of ozone on the total count of aerobic bacteria, yeast, and mold. The applied process conditions resulted in the reduction of the number of aerobic bacteria colonies by 3 log cfu g−1 compared to the control (non-ozonated) sample, whereas the number of yeast and mold colonies decreased by 1 log cfu g−1 after the application of 100 ppm ozone gas for 30 min. As a consequence, ozone treatment enhanced the plant quality and extended plant’s storage life.

Encapsulation of sea buckthorn (Hippophae rhamnoides L.) leaf extract via an electrohydrodynamic method

2021 ◽  
pp. 130481
Author(s):  
Xingang Lyu ◽  
Xiao Wang ◽  
Qilei Wang ◽  
Xueying Ma ◽  
Suolian Chen ◽  
...  
Keyword(s):  
Leaf Extract ◽  
Sea Buckthorn ◽  
Hippophae Rhamnoides ◽  
Hippophaë Rhamnoides ◽  
Hippophae Rhamnoïdes L
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