High impact information on Hippophae

• The concept was demonstrated for the determination of the antioxidative potential of various polyphenol mixtures and of the methanol extract of the sea buckthorn (Hippophae rhamnoides L.). In most cases quercetin has the highest rate constant of oxidation among the tested phenolic compounds [1].
• We have also studied the effects of antioxidants such as alpha-tocopherol, ascorbic acid, and juice from sea buckthorn on DHA [2].
• Chemoprevention by Hippophae rhamnoides: effects on tumorigenesis, phase II and antioxidant enzymes, and IRF-1 transcription factor [3].
• Under the optimal experimental conditions, analytical capability of the apparatus was successfully demonstrated in separation of flavonoids from a crude sea buckthorn ethanol extract in a multilayer coil with a total capacity of 8 ml [4].
• The cross-axis synchronous flow-through coil planet centrifuge with a 20-cm revolutional radius and a total capacity of 1600 ml was successfully applied to preparative counter-current chromatography of various biological samples, which include sea buckthorn extract, steroid reaction mixture, indole plant hormones, and dinitrophenylamino acids [5].

Biological context of Hippophae

• Changes in the quantitative composition of triacylglycerols (TAGs) in maturing sea buckthorn (Hippophaë rhamnoides L.) seeds were determined by lipase hydrolysis [6].
• The observations showed that SO2 inhalation resulted in a significant change in the glutathione redox system and indicated that sea buckthorn seed oil could contribute to the antioxidant effects in the case of SO2 exposure [7].
• Evaluation of antioxidant activity of leaf extract of Seabuckthorn (Hippophae rhamnoides L.) on chromium(VI) induced oxidative stress in albino rats [8].

Associations of Hippophae with chemical compounds

• Five types of flavonol were isolated from seabuckthorn (Hippophae rhamnoides) and identified by mass, 1H- and 13C-NMR [9].
• Isolation and characterization of 1,3-dicapryloyl-2-linoleoylglycerol: a novel triglyceride from berries of Hippophae rhamnoides [10].
• This method is suitable for quantitative analysis of alpha-tocopherol in Sea buckthorn oil or its Traditional Chinese Medicinal preparation [11].
• The oligomers consisted mainly of prodelphinidin subunits whereas procyanidins were present in smaller amounts, indicating a very uncommon composition of the sea buckthorn proanthocyanidins [12].
• Effects of different origins and harvesting time on vitamin C, tocopherols, and tocotrienols in sea buckthorn (Hippophaë rhamnoides) berries [13].

Gene context of Hippophae

• Ascorbic acid was shown to be the major antioxidant in sea buckthorn juice [14].
• Addition of ethanol insoluble substances up to 7% (w/v) to the juice changed its rheological behavior to resemble that of a sea buckthorn juice concentrate at 48 degrees Brix, although frequency dependence was unaffected above 1 Hz [15].
• In groups given a high dosage (6 or 8 ml/kg) intraperitoneally, the level of TBARS (thiobarbituric acid-reactive substances) was decreased significantly (p < 0.05) by the injection of sea buckthorn seed oil, and the activity of GST was increased significantly (p < 0.05) [7].

Analytical, diagnostic and therapeutic context of Hippophae

• A non-aqueous reversed phase HPLC was developed for determining alpha-tocopherol in Sea buckthorn oil capsule without the need for saponification [11].
• Four flavonol glycosides were isolated from an extract of sea buckthorn pomace (Hippophaë rhamnoides) by Sephadex LH-20 gel chromatography and semipreparative HPLC [16].
• The rheological behavior of sea buckthorn serum obtained after centrifugation of the juice was similar to those of the juice and sucrose solution at high shear rate but differed from them at low shear rate [15].

References