Effect of Gamma Irradiation on the Physical Properties of Alginic Acid and λ-Carrageenan

송유진,; 이소영,; 김꽃봉우리,; 박진규,; 김재훈,; 이주운,; 변명우,; 안동현,

doi:10.3746/jkfn.2007.36.7.902

Cited by 8 publications

(2 citation statements)

References 1 publication

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“…Polyphenols from irradiated plants can be degraded due elimination of free radicals and reactive oxygen species produced by irradiation, or polyphenol levels can be increased due to breakage of polyphenol chemical bonds to produce low molecular weight fragments (17,18). There was no significant (p>0.05) difference between TPC levels and irradiation dosage, compared with controls.…”

Section: Resultsmentioning

confidence: 99%

Effect of low-dosage electron beam irradiation on antioxidant activities of navel oranges during storage at a low temperature of 3°C

Cho

Kim

Yook

2016

Food Sci Biotechnol

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Effects of low-dosage electron beam irradiation on antioxidant activities of Navel oranges during storage at a low temperature of 3°C were studied. Oranges were irradiated at dosages of 0.2, 0.4, 0.6, 0.8, and 1.0 kGy and changes in antioxidant compounds and antioxidant activities were investigated. No changes in total phenolic contents or flavonoid contents were observed with an increase in radiation dosage. Also, no differences between non-irradiated and irradiated oranges in DPPH radical scavenging and ABTS radical scavenging activities, FRAP values, and reducing powers were observed. Electron beam irradiation at dosages less than 1 kGy does not affect levels of antioxidant compounds and antioxidant activities of Navel oranges.

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Section: Resultsmentioning

confidence: 99%

Effect of low-dosage electron beam irradiation on antioxidant activities of navel oranges during storage at a low temperature of 3°C

Cho

Kim

Yook

2016

Food Sci Biotechnol

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“…Studies on the degradation of seaweed polysaccharides are in process, thus aiming to solve these issues. Oligosaccharidization methods of polysaccharides are known to be hydrolysis, irradiation, chemical degradation and enzymatic degradation etc [ 7 ]. Since alginate is stabilized in acidic or alkaline conditions, it is difficult to decompose and it is difficult to set the decomposition conditions upon thermal decomposition.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Undaria pinnatifida Root Enzymatic Extracts Using Crude Enzyme from Shewanella oneidensis PKA 1008 and Its Anti-Inflammatory Effect

Jeong

Lee

et al. 2020

Journal of Microbiology and Biotechnology

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This study investigated the characterization and functionality of Undaria pinnatifida root (UPT) extracts, degraded using a crude enzyme from Shewanella oneidensis PKA1008. To obtain the optimum degrading conditions, the UPT was mixed with alginate degrading enzymes from S. oneidensis PKA 1008 and was incubated at 30°C for 0, 3, 6, 12, 24, and 48 h. The alginate degrading ability of these enzymes was then evaluated by measuring the reducing sugar, viscosity, pH and chromaticity. Enzymatic extract at 24 h revealed the highest alginate degrading ability and the lowest pH value. As the incubation time increased, the lightness (L *) also decreased and was measured at its lowest value, 39.84, at 12 hours. The redness and yellowness increased gradually to 10.27 at 6 h and to 63.95 at 3 h, respectively. Moreover, the alginate oligosaccharides exhibited significant anti-inflammatory activity. These results indicate that a crude enzyme from S. oneidensis PKA 1008 can be used to enhance the polysaccharide degradation of UPT and the alginate oligosaccharides may also enhance the anti-inflammatory effect.

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Effect of gamma-irradiation on the characteristics and anti-inflammatory activity of Sargassum fulvellum water extracts

Jo,

Xu,

Lee

et al. 2024

Radiation Physics and Chemistry

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Effect of Gamma Irradiation on the Physical Properties of Alginic Acid and λ-Carrageenan

Cited by 8 publications

References 1 publication

Effect of low-dosage electron beam irradiation on antioxidant activities of navel oranges during storage at a low temperature of 3°C

Effect of low-dosage electron beam irradiation on antioxidant activities of navel oranges during storage at a low temperature of 3°C

Characterization of Undaria pinnatifida Root Enzymatic Extracts Using Crude Enzyme from Shewanella oneidensis PKA 1008 and Its Anti-Inflammatory Effect

Effect of gamma-irradiation on the characteristics and anti-inflammatory activity of Sargassum fulvellum water extracts

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