基于冷链物流的海产品质量管理研究

海产品的质量安全问题受到国际社会的广泛关注,HACCP质量管理体系已成为控制冷冻海产品质量安全的国际强制性认证标准。HACCP质量管理体系通过对海产品进行危害分析,设置多个关键控制点、关键限制及监控体系和纠偏措施等环节,从海产品的捕捞、运输、加工、包装、销售等冷链物流环节对海产品质量进行严格控制。目前,HACCP已成为我国海产品冷链物流主要的质量控制体系。     

老子“治大国若烹小鲜”发微

老子"治大国若烹小鲜"一语,既寓治国不可扰民之义,也提示统治者要注意各种因素的相济互补、和谐统一,并把握好做好事之"度".而老子用鱼为喻来阐明其"道",更表现了老子之"道"的阴性特征.     

Communicating Risks and Benefits from Fish Consumption: Impact on Belgian Consumers' Perception and Intention to Eat Fish

Communicating about the health effects of fish and seafood may potentially result in a conflict situation: increasing intake is desirable because of health and nutritional benefits, but higher consumption may also lead to an increased intake of potentially harmful environmental contaminants. In order to anticipate the communication challenge this conflict may pose, the research presented here aimed to assess the impact of risk/benefit communication on Belgian consumers' fish consumption behavior and fish attribute perception. Data were collected in June 2005 from a sample of 381 women, aged between 20 and 50 years. An experimental design consisting of four message conditions (benefit‐only; risk‐only; benefit‐risk; and risk‐benefit) combined with three information sources (fish and food industry; consumer organization; government) was used. Exposure to the benefit‐only message resulted in an increase from a self‐reported fish consumption frequency of 4.2 times per month to an intended fish consumption frequency of 5.1 times per month (+21%), while fish attribute perceptions only marginally improved. The risk‐only message resulted in a strong negative perceptual change in the range of two points on a seven‐point scale. This translated into an 8% decrease of behavioral intention (from eating fish 4.5 times per month to an intention of eating fish 4.1 times per month). Balanced messages referring to both risks and benefits yielded no significant change in behavioral intention, despite a significant worsening of fish attribute perception. The presentation order of benefits and risks in the balanced message showed a tendency to affect both behavioral intention and attribute perception, with the first message component being most influential. Information source did not yield any significant impact either on behavioral intention or on attribute perceptions, independent of the message content. The results from this study provide valuable insights for future risk/benefit and balanced communication about seafood.     

蓝色粮仓:建设基础、面临问题与发展潜力

充分利用丰富的海洋生物种类和现代渔业技术,合理开发广阔的海洋和沿海滩涂,建设"蓝色粮仓",有助于人类彻底摆脱粮食安全的困扰。虽然广阔的海域和沿海滩涂、丰富的海产品种类、不断改善的海洋生态环境,奠定了"蓝色粮仓"的建设基础,但近海养殖空间受到工业等建设项目的严重挤压、海洋科技优势未能充分发挥、缺乏示范能力强的龙头企业和品牌产品、规划编制滞后、相关扶持政策不完善等也是"蓝色粮仓"建设面临的突出问题。为此,应充分发挥海洋科教实力雄厚、海洋经济发展初具规模、海洋政策优势逐步显现、港口集疏运比较发达、海域空间拓展潜力较大的优势,化解问题,推动"蓝色粮仓"建设。     

建设“蓝色粮仓”的策略选择与保障措施

推进"蓝色粮仓"建设,对于缓解食品供给矛盾,保障粮食安全具有重要意义。在实践中,应遵循"空间拓展"战略、海域利用效率提升战略、价值链延伸战略、内涵式发展战略、科技支撑强化战略等五大推进策略;并从保障基本的养殖水域和滩涂、健全财政扶持和投融资机制、加大海洋渔业研发力度、强化海产品市场建设、提高海产品安全水平、加强与周边区域的合作等方面入手,强化"蓝色粮仓"建设的保障体系。     

舟山水产加工业供应链研究——以X企业为例

本文以X企业为例,综合分析了舟山水产加工业的供应链结构。从降低供应链风险的角度提出了整合订单管理、优化生产流程、打破单一纵向组织结构、开拓国内外市场、积极开发技术含量高的产品等对策,并用Arena仿真软件对部分对策进行了初步验证。     

酶解扇贝裙边制备海鲜风味肽的研究

为确定扇贝裙边制备海鲜风味肽的最佳条件,提高低值扇贝裙边的附加值。采用复合蛋白酶和风味蛋白酶联合酶解法,以氨基酸态氮的含量结合感官评定为评价指标,通过单因素实验和正交实验考查了酶浓度、酶解温度和时间以及固液比对水解效果的影响。确定在酶用量5‰、固液比为1∶4、55℃反应6 h的条件下水解效果达到最佳。所得的风味肽海鲜味浓郁,可进一步开发成优质的调味品。     

酶解扇贝裙边制备海鲜风味肽的研究

为确定扇贝裙边制备海鲜风味肽的最佳条件,提高低值扇贝裙边的附加值.采用复合蛋白酶和风味蛋白酶联合酶解法,以氨基酸态氮的含量结合感官评定为评价指标,通过单因素实验和正交实验考查了酶浓度、酶解温度和时间以及固液比对水解效果的影响.确定在酶用量5‰、固液比为1∶4、55℃反应6 h的条件下水解效果达到最佳.所得的风味肽海鲜味...     

三亚市红沙海域海产品铜含量分析及评价

通过测定三亚红沙海域海产品中总铜含量,根据无公害食品水产品有毒有害物质标准限量对海产品的食用安全性进行评估,为三亚红沙海域海产品重金属铜污染状况和食用安全性提供理论基础。     

Methylmercury Risks and EPA + DHA Benefits Associated with Seafood Consumption in Europe

The intake of methyl‐Hg and EPA + DHA through consumption of seafood in Europe as well as the associated probability of exceeding the provisional tolerable weekly intake (PTWI) and the recommended daily intake (RDI), respectively, were estimated by combining methyl‐Hg and EPA + DHA contents in the five most consumed seafood species with hypothesized consumption distributions for eight European countries, chosen on the basis of size and representative significance. Two estimators were used: plug‐in (PI) and tail estimation (TE). The latter was based on the application of the extreme value theory to the intakes distribution curves. Whereas contents data were collected from own database and published scientific papers, consumption data were obtained from statistical sources of the various countries. Seafood consumption levels varied considerably between countries, from 140 in the United Kingdom to 628.5 g/(person.week) in Iceland. The main consumed species were also different between countries. The probability of exceeding the methyl‐Hg PTWI ranged from 0.04% in the United Kingdom to 9.61% in Iceland. Concerning the probability of exceeding the RDI of EPA + DHA, Iceland was third, after Portugal (66.05%) and Spain (61.05%) and the United Kingdom was the last (0.32%). While TE was most accurate for small probabilities, PI yielded best estimates for larger probabilities.