目的基于食用螺旋藻粉的市场安全需求分析食用螺旋藻粉生产过程中的风险因子并提出防控措施。方法根据危害分析和关键控制点(hazard analysis and critical control point,HACCP)体系原则分析生产过程中可能出现的问题,对各个环节进行...目的基于食用螺旋藻粉的市场安全需求分析食用螺旋藻粉生产过程中的风险因子并提出防控措施。方法根据危害分析和关键控制点(hazard analysis and critical control point,HACCP)体系原则分析生产过程中可能出现的问题,对各个环节进行危害分析并制定预防控制措施,对螺旋藻粉进行生物、物理、化学等方面的风险分析后,依据关键控制点(critical control point,CCP)判断树,对生产工艺的各个环节进行判断。结果确定了5个关键控制点,即CCP1–原辅料接收、CCP2–藻种接种、CCP3–养殖管理、CCP4–滤藻及清洗、CCP5–喷雾干燥,每一项关键控制点至少制定了一个关键限值,以消除其显著危害或将危害降低至可接受水平。结论螺旋藻的生长方式特殊,在生产过程中应严格执行HACCP体系,可以保证螺旋藻粉的质量和安全,为消费者的健康饮食提供保障。展开更多
Thick gas electron multipliers (THGEMs) are new types of gas detectors with merits such as a high counting rate,anti-radiation,high gain,robustness and relatively low cost.We establish an up-down THGEM detector hodosc...Thick gas electron multipliers (THGEMs) are new types of gas detectors with merits such as a high counting rate,anti-radiation,high gain,robustness and relatively low cost.We establish an up-down THGEM detector hodoscope system for detecting and displaying muon tracks.Muon tracks can be well observed with the detectors and the present study lays an important technological foundation for the domestic and mass production of THGEMs.展开更多
文摘目的基于食用螺旋藻粉的市场安全需求分析食用螺旋藻粉生产过程中的风险因子并提出防控措施。方法根据危害分析和关键控制点(hazard analysis and critical control point,HACCP)体系原则分析生产过程中可能出现的问题,对各个环节进行危害分析并制定预防控制措施,对螺旋藻粉进行生物、物理、化学等方面的风险分析后,依据关键控制点(critical control point,CCP)判断树,对生产工艺的各个环节进行判断。结果确定了5个关键控制点,即CCP1–原辅料接收、CCP2–藻种接种、CCP3–养殖管理、CCP4–滤藻及清洗、CCP5–喷雾干燥,每一项关键控制点至少制定了一个关键限值,以消除其显著危害或将危害降低至可接受水平。结论螺旋藻的生长方式特殊,在生产过程中应严格执行HACCP体系,可以保证螺旋藻粉的质量和安全,为消费者的健康饮食提供保障。
基金Supported by the National Natural Science Foundation of China under Grant Nos 10775181 and 10775151.
文摘Thick gas electron multipliers (THGEMs) are new types of gas detectors with merits such as a high counting rate,anti-radiation,high gain,robustness and relatively low cost.We establish an up-down THGEM detector hodoscope system for detecting and displaying muon tracks.Muon tracks can be well observed with the detectors and the present study lays an important technological foundation for the domestic and mass production of THGEMs.
