Antioxidant abilities and physiological properties ofdried Haw extracts prepared using different drying methods

Nam, San; Kwon, Yu-Ri; Chung, Hun-Sik; Youn, Kwang-Sup

doi:10.11002/kjfp.2016.23.2.246

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…The samples dried in a microwave appeared to have the highest antioxidant capacity and it was concluded that it was the best method for preserving bioactive phytochemicals (Saadatian et al, 2016). Freeze-drying was reported to be better than hot air drying for hawthorn (C. pinnatifida) in terms of antioxidant, α-glucosidase inhibitory potential, the TPC/TFC values and color (Kwon, 2016).…”

Section: Processing Quality Control and Other Usesmentioning

confidence: 99%

Phytochemical composition and bioactivities of hawthorn ( Crataegus spp.): review of recent research advances

Venskutonis¹

2018

Journal of Food Bioactives

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Hawthorn (Crataegus spp.) is one of the most famous plants which has been used as natural medicine and nutraceutical. Its phytochemical composition, bioactive compounds and health benefits have been intensively studied and hawthorn preparations may be recognized as classical natural products for cardiovascular health. Polyphenolic compounds of different hawthorn anatomical parts as well as their extracts have been the focus of a majority of these studies, although various other classes of natural health promoting constituents have also been isolated, identified and characterized. Regardless, numerous published reports have particularly focused on the activity mechanisms which are very important for supporting various health benefits. This review summarizes the most recent studies on hawthorn, mainly published since 2015. Search of different databases indicates that approximately 200 publications, which are relevant to phytochemistry and health benefits of Crataegus spp., have appeared since then, most of them have not been included in the existing reviews.

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Section: Processing Quality Control and Other Usesmentioning

confidence: 99%

Phytochemical composition and bioactivities of hawthorn ( Crataegus spp.): review of recent research advances

Venskutonis¹

2018

Journal of Food Bioactives

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Effect of different drying methods on anti-oxidation and anti-thrombosis activities of Salicornia europaea

Sung¹,

Kim²,

Sohn³

2017

Korean Journal of Food Preservation

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The current study was performed to investigate the changes of bio-activities of Salicornia europaea (SE) depending on the different dry methods. The ethanol extracts were prepared from the freeze-drying SE (FD), hot-air drying SE (HD), and shade drying SE (SD). Their anti-oxidant and anti-thrombosis activities were compared. The yields of ethanol extraction in FD, HD, and SD were 14.4, 13.2 and 11.9%, respectively. The highest contents of total polyphenol (4.6 mg/g) and total sugar (23.4 mg/g) were shown in FD, whereas, the highest content of reducing sugar (14.6 mg/g) was observed in HD. In anti-oxidation activity assay, the FD and HD showed similar radical scavenging activities and reducing power. However, in SD, nitrite scavenging activity and reducing power were severely decreased. In anti-coagulation activity assay, the thrombin time (TT), prothrombin time (PT) and activated partial thromboplastin time (aPTT) of FD, HD and SD did not show significant changes at 5 mg/mL concentration. But the HD at 7 mg/mL had strong inhibitions against thrombin and blood coagulation factors. The platelet aggregation and hemolysis activities were not affected by dry methods. Our results suggest that both FD and HD are effective to maintain the functional ingredient of SE, and HD is economic and efficient dry process for production of functional food.

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Comparison of the antioxidant effects and physiological activities of grape fruit stem extracts derived with different drying methods

Youn¹

2018

Korean Journal of Food Preservation

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This study was conducted to examine the utilization potential of grape stems as nutritional supplements, and the physiological functionalities of 70% ethanol extracts from grape fruit stem (GFS) were investigated. Each experimental group was prepared with different methods and included GFSF (GFS prepared with freeze drying), GFSI (GFS prepared with infrared drying), GFSH (GFS prepared with heat air drying), and GFSS (GFS prepared with sun drying). The respective yields of freeze-dried powders for the GFSF, GFSI, GFSH, and GFSS were 59.27%, 57.13%, 58.57%, and 58.87%, respectively. Total polyphenol contents in the GFSF were significantly greater than those in the other extracts, whereas total flavonoid contents in the GFSI were higher than those in the other extracts. The contents of proanthocyanidin-related substances were ranked in the order of GFSF > GFSI > GFSH > GFSS. The thin layer chromatograph (TLC) analysis of catechin showed that the GFSF, GFSI, GFSH, and GFSS were detected in the same band. The electron donating ability with 500 µg/mL (w/v) solutions of GFSF, GFSI, GFSH, and GFSS amounted to 93.14%, 93.07%, 92.64%, and 86.95%, respectively, and the reducing powers (OD 700) were 1.933, 1.765, 1.455, and 1.200 absorbance units, respectively. Additionally, the ABTS radical scavenging ability showed the same tendency that was observed with the electron donating ability and reducing power. The angiotensin-converting enzyme (ACE) inhibitory activity and tyrosinase inhibitory activity with 500 µg/mL (w/v) solutions of GFSF and GFSI were higher than those of GFSH and GFSS. In conclusion, the infrared drying technique is the superior method for the enhancement of biological activity for by-product utilization.

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Antioxidant abilities and physiological properties ofdried Haw extracts prepared using different drying methods

Cited by 3 publications

References 24 publications

Phytochemical composition and bioactivities of hawthorn ( Crataegus spp.): review of recent research advances

Phytochemical composition and bioactivities of hawthorn ( Crataegus spp.): review of recent research advances

Effect of different drying methods on anti-oxidation and anti-thrombosis activities of Salicornia europaea

Comparison of the antioxidant effects and physiological activities of grape fruit stem extracts derived with different drying methods

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