鲍鱼及其制品加工与综合利用研究进展

我国是世界上最大的鲍鱼出产国,鲍鱼作为传统的海产“八珍”之一,具有较高的食用价值和营养价值。本文首先回顾了国内外对于鲍鱼及其制品的加工利用研究,简要阐述各制品加工单元操作,并简略分析各加工方式优缺点。随后,介绍了即食鲍鱼和鲍鱼预制品等新型鲍鱼制品加工方式,可在一定程度上弥补常见鲍鱼制品的加工局限性,但新型鲍鱼制品的研究尚处于起步阶段,仍有较大的发展潜力。此外,综述了基于鲍鱼蛋白、鲍鱼多糖等鲍鱼活性成分的综合利用研究进展,目前研究多集中在活性成分的功效验证上,相关的市场化规模化制品仍有较大的空缺。本文通过对鲍鱼及其制品加工利用研究进展的系统性介绍,旨在为鲍鱼深加工提供理论依据,促进我国水产品加工行业的持续健康发展。     

Potential sources of human listeriosis in Sweden

Altogether 68Listeria monocytogenesstrains belonging to serovar 1/2a isolated from human cases of listeriosis, salmon, rainbow trout and soft cheeses were further characterized to find out if these food products could be connected with human listeriosis in Sweden. Phagetyping and restriction endonuclease analysis (REA) with pulsed-field gel electrophoresis (PFGE) were used for characterization of the strains. Twenty-three strains belonging to phagovar 1 and five strains belonging to the closely related phagovar 24 were selected for REA and PFGE.L. monocytogenesisolates from two humans and two fish products shared the same PFGE pattern. The same was true for three human isolates and one salmon isolate. These findings suggest that there may be an association between human cases of listeriosis and consumption of salmon or rainbow trout. None of the soft cheese isolates were identical with the human strains.