Abstract: The present invention discloses a method for rapidly characterizing content variations of triterpenoids in a liquid fermentation process of Antrodia camphorata, belonging to the field of microbial fermentation. According to the method of the present invention, in the liquid fermentation of Antrodia camphorata, an analysis method of rapidly judging the content variations of triterpenoids by rapid on-line or off-line detection and analysis of the content of a volatile aromatic substance ?-terpineol is utilized to implement automatic control of the fermentation process. Predictive analysis of triterpenoids in the fermentation process based on variations in on-line real-time parameters increases the controllability and production predictability of the fermentation process. This is of great significance for the development and utilization of Antrodia camphorata products having various bioactivities and application thereof in industrial production.

Abstract: The present invention discloses a method for rapidly characterizing content variations of triterpenoids in a liquid fermentation process of Antrodia camphorata, belonging to the field of microbial fermentation. According to the method of the present invention, in the liquid fermentation of Antrodia camphorata, an analysis method of rapidly judging the content variations of triterpenoids by rapid on-line or off-line detection and analysis of the content of a volatile aromatic substance ?-terpineol is utilized to implement automatic control of the fermentation process. Predictive analysis of triterpenoids in the fermentation process based on variations in on-line real-time parameters increases the controllability and production predictability of the fermentation process. This is of great significance for the development and utilization of Antrodia camphorata products having various bioactivities and application thereof in industrial production.

Abstract: An attack defense method and device. The method includes counting the number of renegotiations in a transmission control protocol (TCP) connection, where the number of the renegotiations is the number of repeated negotiations between a client and a server in the TCP connection. When the number of the renegotiations in the TCP connection is greater than a preset threshold of the number of renegotiations, determining that the TCP connection is an abnormal connection and disconnecting the TCP connection. Embodiments of the present invention also provide an attack defense device, implementing effective defense against a secure socket layer (SSL) denial of service (DOS) attack behavior.