The survival bacterium observed is only the gram positive bacillus in these samples, which show that some gram positive bacillus in beef have more repellence for ultra-high pressure.

• 牛肉中残存的微生物主要是革兰氏阳性杆菌，说明牛肉中的某此革兰氏阳性杆菌对超高压具有较强的抵抗性。