Effect of Proteases on the Extraction of Crude Protein and Reducing Sugar in Pollen

최수정,; 정윤화,

doi:10.3746/jkfn.2004.33.8.1353

Journal of the Korean Society of Food Science and Nutrition

2004

DOI: 10.3746/jkfn.2004.33.8.1353

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Effect of Proteases on the Extraction of Crude Protein and Reducing Sugar in Pollen

최수정 최수정¹,

정윤화 정윤화²

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Cited by 4 publications

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Effects of Gamma Irradiation on Quality Characteristic and Microbiological Safety of Rape (Brassica napus) Pollen

Kim¹,

Kim²,

Jeong³

et al. 2013

Journal of the Korean Society of Food Science and Nutrition

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This study is carried out to sanitize rape (Brassica napus) pollen by gamma irradiation. Rape pollens were treated with 0, 5, 10 and 15 kGy gamma irradiations, and then analyzed for the following: general composition, microbial population, reducing sugar, Hunter color values, TBARS (2-thiobarbituric acid reactive substances) values, and VBN (volatile basic nitrogen). Mold and coliform bacteria were not detected in the samples irradiated at 5 kGy or more. Yeasts and total aerobic bacteria were not detected in the samples irradiated at 10 kGy or more (<10 2 CFU/g). Moisture, ash, crude protein, crude fat, carbohydrate, reducing sugar and the contents of volatile basic nitrogen in the irradiated pollen did not show any significant changes by irradiation. Hunter color values, L * , a * and b * values were decreased with increment of irradiation dose. TBARS values were increased with an increment of irradiation dose. In conclusion, gamma irradiation at 5 kGy was considered to be an effective treatment to control for mycotoxin producing fungi in rape pollen to minimize changes of general composition and physicochemical properties. Further studies should be investigated to reduce the detrimental effects induced by irradiation.

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Effects of Gamma Irradiation on Quality Characteristic and Microbiological Safety of Rape (Brassica napus) Pollen

Kim¹,

Kim²,

Jeong³

et al. 2013

Journal of the Korean Society of Food Science and Nutrition

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Germination and Antioxidant Activity of Korean Oak Pollen Treated with Medicinal Mushrooms

Hong¹,

Woo²,

Han³

et al. 2014

The Korean Journal of Mycology

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In this study, we measured antioxidant activity as DPPH radical scavenging and the total polyphenol content of pulverized and lyophilized oak pollens inoculated with fungi to confirm the husk removal effect. The total polyphenol content of oak pollen was highest in lyophilized pollen medium inoculated with Armillaria mellea, and was lowest in pollen inoculated with Lentinula edodes. Total polyphenol content of the lyophilized pollen was higher than that of the refined pollen and the pulverized pollen in oak pollen germinated with A. mellea. The total polyphenol content of the lyophilized oak pollen germinated with A. mellea was 1.4-fold higher than that extracted with water. Measurement of antioxidant activity using the DPPH (2, 2 diphenyl-1picrylhydrazyl) free radical scavenging method showed that the lyophilized oak pollen germinated with A. mellea had the highest and that germinated with L. edodes was lowest in antioxidant activities. The lyophilized oak pollen germinated with A. mellea was 2 to 4 times higher than that extracted with water in the antioxidant activity of DPPH free radical scavenging. Many germinated cells were formed around pore of acorn pollen inoculated with L. edodes, while those were formed at the end of hyphae derived from oak pollen inoculated with A. mellea.

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Antimicrobial Activity of a Gelidium corneum - Gelatin Blend Film Containing Fermented Pollen Extract and Its Application in the Packaging of Pork Loins

Hong¹,

Lim²,

Song³

2009

Korean Journal for Food Science of Animal Resources

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Effect of Proteases on the Extraction of Crude Protein and Reducing Sugar in Pollen

Cited by 4 publications

References 1 publication

Effects of Gamma Irradiation on Quality Characteristic and Microbiological Safety of Rape (Brassica napus) Pollen

Effects of Gamma Irradiation on Quality Characteristic and Microbiological Safety of Rape (Brassica napus) Pollen

Germination and Antioxidant Activity of Korean Oak Pollen Treated with Medicinal Mushrooms

Antimicrobial Activity of a Gelidium corneum - Gelatin Blend Film Containing Fermented Pollen Extract and Its Application in the Packaging of Pork Loins

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