• 제목/요약/키워드: food science and technology

검색결과 19,068건 처리시간 0.047초

인공정화에 의한 참굴(Crassostrea gigas)의 유통기한 연장 (Shelf-life Extension of Raw Oyster Crassostrea gigas by Depuration Process)

  • 이도하;강동민;박슬기;정민철;강민균;조두민;이재화;이다은;심윤아;정금재;조경진;김영목
    • 한국수산과학회지
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    • 제53권6호
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    • pp.842-850
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    • 2020
  • The objective of this study was to evaluate the effect of the depuration process (artificial seawater sterilization using UV light) for extending the shelf life of raw oyster Crassostrea gigas and maintaining food quality. To confirm the effects of depuration, microbiological (viable cell count) and several physiochemical analyses (pH and glycogen levels in shucked oyster and pH, soluble protein, and turbidity in filling water) were carried out during the storage of raw oysters. The results showed that depuration could effectively extend the shelf life (2-3 days) of raw oysters with minimal change in food quality, including pH and glycogen content. Thus, the depuration process proposed in this study could successfully be applied to processing practices for other shellfish to extend their shelf life and contribute to the management of seafood safety issues.

감태(Ecklonia cava) 에탄올 추출물의 α-Amylase 저해활성에 미치는 열 및 pH의 영향 (Effects of Heat and pH Treatments on α-Amylase Inhibitory Activity of Ecklonia cava Ethanol Extract)

  • 김동현;정지연;김꽃봉우리;이청조;곽지희;김민지;선우찬;김현지;정슬아;김태완;조영제;안동현
    • 한국수산과학회지
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    • 제44권6호
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    • pp.791-795
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    • 2011
  • This study examined the inhibitory activity of Ecklonia cava (EC) against ${\alpha}$-amylase to evaluate the availability of EC extract as a functional food agent. To verify the inhibitory activity of EC against porcine pancreatic ${\alpha}$-amylase, potato starch was used as a substrate. This analysis revealed that EC ethanol extract exhibited high ${\alpha}$-amylase inhibitory activity. For potential application within the food industry, the stability of the activity of EC ethanol extract under various heat and pH conditions was examined. The ${\alpha}$-amylase inhibitory activity of EC ethanol extract was not affected by the heat and pH treatment conditions used in this study. These results suggest that EC has the potential for development as a functional food agent.

Effect of different concentrations of hypotaurine on melanosis and quality of Pacific white shrimp (Penaeus vannamei) during refrigeration

  • Zhou, Jiaying;Ying, Yubin;Zhou, Yaqi;Li, Gaoshang;Hu, Yaqin
    • Fisheries and Aquatic Sciences
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    • 제25권4호
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    • pp.231-242
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    • 2022
  • Effect of different concentrations of hypotaurine (HTU) on melanosis and quality of shrimps during 10 d storage in ice were studied. During refrigeration, the total plate count and total volatile basic nitrogen of shrimps treated with 20 g/L HTU were the lowest, and the hardness and microstructure were the best. Moreover, the score of melanoses, pH and total bile acid of shrimps treated with 20 g/L HTU were also low. Sensory evaluation showed that HTU treatment could make the shelf life of shrimps 3-4 days longer compared with the control. Based on the above physical and chemical indexes, 20 g/L HTU showed great potential as a safe inhibitor in the treatment of shrimps' melanosis.