Improvement of Physiological Activity of the Ethanol Extract from Boiled-water of Enteroctopus dofleini by Gamma Irradiation

Sempur (Dillenia suffruticosa) leaves are known as a traditional medicine for the people of Bangka-Belitung Island. The local people empirically utilize the boiled water of D. suffruticosa leaves as anti-diarrhea. However, the antimicrobial activity of the ethanol extract of D. suffruticosa leaves has not been reported. This study aims to determine the antimicrobial activity of the ethanol extract of D. suffruticosa leaves against several microorganisms: Staphylococcus aureus as Gram-positive bacteria, Escherichia coli as Gram-negative bacteria, and Candida albicans as fungi. Extraction was carried out by maceration method with 70% ethanol, then screened for phytochemical constituents. The antimicrobial test was carried out by the disc diffusion method using Nutrient Agar (NA) for bacteria, and Sabouraud Dextrose Agar (SDA) for fungi. The results of phytochemical screening showed that the ethanol extract of D. suffruticosa leaves contained alkaloids, flavonoids, tannins, and saponins. The antimicrobial test showed that the extract of D. suffruticosa leaves could inhibit the growth of S. aureus at concentrations of 10%, 20%, and 40% were 8.35±0.05; 9.34±0.32; and 10.52±0.22, respectively. The ethanol extract of D. suffruticosa leaves could inhibit the growth of S. aureus, whereas E. coli and C. albicans did not show any activity.

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Effect of gamma irradiation on the physiological activity of Korean soybean fermented foods, Chungkookjang and Doenjang

Radiation Physics and Chemistry ◽

10.1016/s0969-806x(01)00492-3 ◽

2002 ◽

Vol 64 (3) ◽

pp. 245-248 ◽

Cited By ~ 48

Author(s):

Myung-Woo Byun ◽

Jun-Ho Son ◽

Hong-Sun Yook ◽

Cheorun Jo ◽

Dong-Ho Kim

Keyword(s):

Gamma Irradiation ◽

Physiological Activity ◽

Fermented Foods

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Effects of Heat, pH, and Gamma Irradiation Treatments on Lipase Inhibitory Activity of Sargassum thunbergii Ethanol Extract

Journal of the Korean Society of Food Science and Nutrition ◽

10.3746/jkfn.2012.41.4.566 ◽

2012 ◽

Vol 41 (4) ◽

pp. 566-570 ◽

Cited By ~ 3

Author(s):

Dong-Hyun Kim ◽

Koth-Bong-Woo-Ri Kim ◽

Min-Ji Kim ◽

Chan SunWoo ◽

Seul-A Jung ◽

...

Keyword(s):

Gamma Irradiation ◽

Inhibitory Activity ◽

Ethanol Extract ◽

Sargassum Thunbergii

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Effects of Gamma Irradiation on Color Changes and Biological Activities of Ethanol Extract of a Mechanically Pressed Juice of Bokbunja (Rubus coreanus Miq.)

Journal of the Korean Society of Food Science and Nutrition ◽

10.3746/jkfn.2006.35.3.271 ◽

2006 ◽

Vol 35 (3) ◽

pp. 271-277 ◽

Cited By ~ 2

Keyword(s):

Gamma Irradiation ◽

Biological Activities ◽

Ethanol Extract ◽

Rubus Coreanus ◽

Color Changes

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The effects of gamma-irradiation on the components of boiled water extractives of sardine.

FOOD IRRADIATION JAPAN ◽

10.5986/jrafi.21.50 ◽

1986 ◽

Vol 21 (1/2) ◽

pp. 50-54

Author(s):

Tadatake Oku ◽

Naohisa Akabori ◽

Masahiro Komatsu ◽

Naoki Saito ◽

Hiromasa Sunaga

Keyword(s):

Gamma Irradiation ◽

Boiled Water

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The Content of Physiologically Active Substances in Several Medicinal Mushrooms with Various Doses of γ-Irradiation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.936.707 ◽

2014 ◽

Vol 936 ◽

pp. 707-711

Author(s):

Shih Jeng Huang ◽

Ya Ling Liu ◽

Jeng Leun Mau ◽

Shu Yao Tsai

Keyword(s):

Gamma Irradiation ◽

Physiological Activity ◽

Hot Water ◽

Aminobutyric Acid ◽

Antrodia Camphorata ◽

Γ Irradiation ◽

Medicinal Mushrooms ◽

Physiologically Active Substances ◽

Γ Rays ◽

Active Substances

Dry samples of fruit bodies of Cordyceps militaris and Agariucs blazei, mycelia of Antrodia camphorata, and hot water extracts of Ganoderma tsugae were ground and irradiated with γ-rays at doses of 0, 2.5, 5, and 10 kGy. After γ-irradiation, the content of γ-aminobutyric acid, adenosine, cordycepin, and triterpenoids in medicinal mushrooms did not significantly change. Gamma-irradiation only affects A. camphorata mycelia polysaccharide content, and an increase in irradiation dose (0-10 kGy) significantly reduces its content (111.85-101.88 mg/g). The content of high molecular weight (2.7×105 Da) polysaccharide in G. tsugae by γ-irradiation with increasing doses gradually increased. Gamma-irradiation could significantly affect the content of vitamin D2 and ergosterol. However, ergosterol content in non-irradiated C. militaris, A. blazei, A. camphorata, and G. tsugae was 2.34, 1.31, 2.33, and 1.15 mg/g, and of that in 10 kGy γ-irradiated mushrooms was 2.75, 1.88, 2.19, and 0.94 mg/g, respectively. Summarily, γ-irradiation does change some medicinal mushrooms by the content of physiologically active substances. When using γ-irradiation sterilization to maintain the physiological activity of mushroom products, one should consider its impact on the physiologically active substances.

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