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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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초록· 키워드
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The effects of particle size and high pressure on the antioxidant activity of skin and flesh of deodeok (Condonopsis lanceolata) were studied. The deodeok powder was prepared by different particle sizes, such as 20-40 mesh, 40-60 mesh, and below 100 mesh. High pressure was applied at 250 MPa and 450 MPa for 10min. The antioxidant activity was measured by the concentration of total phenol, DPPH, and reduction power. According to the mass transfer theory, the diffusion rate was inversely proportional to the particle sizes of the solute. However, high extraction rate was observed from the large particle size (20-40 mesh) of the powder prepared by the whole deodeok which included both skin and flesh. When the powders were separately prepared by skin and flesh, the extraction rate were inversely proportional to the particle size. The antioxidant activity from the skin was significantly higher than that of flesh (p<0.05). High pressure treatment increased the antioxidant activity of flesh dramatically. The result of study indicated that the by-product of deodeok was a useful resource to obtain the antioxidants.
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참고문헌 (33)
참고문헌 신청
Barbosa-Canovas G. / 1998 / Nonthermal preservation of foods / Marcel Dekker :9~213
Chae JM. / 1996 / Maceration methods for SEM observation / Keimyung Med. J 15:75~85
Chang YK. / 1986 / Chemical studies on the alkaloidal constituents of Codonopsis lanceolata / Arch. Pharm. Res 30:1~7
Duval B. / 2001 / The stimulation of phenolics and antioxidant activity in pea(Pisum sativum)elicited by genetically transformed anise root extract / J. Food Biochem 25:361~377
Dornenbrug H. / 1993 / Cellular permeabilization of cultured plant tissues by high electric field pulses or ultra high pressure for the recovery of secondary metabolites / Food Biotechnol 7:35~48
Chae JM. / 1996 / Maceration methods for SEM observation / Keimyung Med. J 15:75~85
Chang YK. / 1986 / Chemical studies on the alkaloidal constituents of Codonopsis lanceolata / Arch. Pharm. Res 30:1~7
Duval B. / 2001 / The stimulation of phenolics and antioxidant activity in pea(Pisum sativum)elicited by genetically transformed anise root extract / J. Food Biochem 25:361~377
Dornenbrug H. / 1993 / Cellular permeabilization of cultured plant tissues by high electric field pulses or ultra high pressure for the recovery of secondary metabolites / Food Biotechnol 7:35~48
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