[Objectives] To study the antibacterial and antioxidant effects of chlorogenic acid extracts of Gynura procumbens,Lonicera japonica,and Eucommia ulmoides leaves,and provide a reference for their usage as natural food ...[Objectives] To study the antibacterial and antioxidant effects of chlorogenic acid extracts of Gynura procumbens,Lonicera japonica,and Eucommia ulmoides leaves,and provide a reference for their usage as natural food preservatives and antioxidants. [Methods]The disc diffusion method was applied to study the antibacterial activity of chlorogenic acid extracts of G. procumbens,L. japonica,and E. ulmoides leaves against several common pathogens. In the antioxidant effects,study was carried out on the anti-lipid peroxidation,reducing capacity,and DPPH free radical scavenging capacity of chlorogenic acid extracts of G. procumbens,L. japonica,and E. ulmoides leaves,respectively.[Results]Three chlorogenic acid extracts had strong inhibitory effects on bacteria,especially the inhibition on Staphylococcus aureus. At the concentration of 100 mg/m L,the bacteriostatic ring of chlorogenic acid extracts of G. procumbens,L. japonica,and E. ulmoides leaves reached 21. 4,23. 6 and 24. 7 mm respectively. Besides,these chlorogenic acid extracts had significant inhibitory effect on Escherichia coli and Salmonella,but the inhibitory effect on the yeast was not obvious; the antibacterial intensity of antibacterial compounds was chlorogenic acid extracts of E. ulmoides > chlorogenic acid extracts of L. japonica > chlorogenic acid extracts of G. procumbens. Among these three chlorogenic acid extracts,the chlorogenic acid extracts of E. ulmoides had higher anti-lipid peroxidation,reducing capacity,and DPPH free radical scavenging capacity than other two chlorogenic acid extracts. [Conclusions] This paper reveals that among chlorogenic acid extracts of G. procumbens,L. japonica,and E. ulmoides leaves,the chlorogenic acid extracts of E. ulmoides leaves have a stronger antibacterial activity and antioxidant activity.展开更多
Purpose: To design a seamless healthcare system to provide the elderly in the community of Wuhan city with active, real-time and seamless health services. Method: All of the health services for the elderly in the comm...Purpose: To design a seamless healthcare system to provide the elderly in the community of Wuhan city with active, real-time and seamless health services. Method: All of the health services for the elderly in the community of Wuhan city, such as chronic disease management, first aid, and diagnosis have been systematically integrated based on the Radio Frequency Identification (RFID) technology combined with the existing high-tech, such as nano-sensor, network, information system technology, wireless technology, Bluetooth and Area Position System (APS) positioning. Results: The system has been constructed and put into use, initially achieving seamless health services for the elderly. The majority of both the elderly and healthcare workers are satisfied with the system. Conclusion: The study initially proposes the use of RFID technology to plan and design the elderly healthcare system, and has successfully carried the system out and got positive outcomes. It provides a new direction in the relevant research fields.展开更多
基金Supported by Key Science and Technology Project of Jiangxi Province(2017ACF60009)Key Project of Jiangxi Academy of Sciences(2016-YZDZ-03)
文摘[Objectives] To study the antibacterial and antioxidant effects of chlorogenic acid extracts of Gynura procumbens,Lonicera japonica,and Eucommia ulmoides leaves,and provide a reference for their usage as natural food preservatives and antioxidants. [Methods]The disc diffusion method was applied to study the antibacterial activity of chlorogenic acid extracts of G. procumbens,L. japonica,and E. ulmoides leaves against several common pathogens. In the antioxidant effects,study was carried out on the anti-lipid peroxidation,reducing capacity,and DPPH free radical scavenging capacity of chlorogenic acid extracts of G. procumbens,L. japonica,and E. ulmoides leaves,respectively.[Results]Three chlorogenic acid extracts had strong inhibitory effects on bacteria,especially the inhibition on Staphylococcus aureus. At the concentration of 100 mg/m L,the bacteriostatic ring of chlorogenic acid extracts of G. procumbens,L. japonica,and E. ulmoides leaves reached 21. 4,23. 6 and 24. 7 mm respectively. Besides,these chlorogenic acid extracts had significant inhibitory effect on Escherichia coli and Salmonella,but the inhibitory effect on the yeast was not obvious; the antibacterial intensity of antibacterial compounds was chlorogenic acid extracts of E. ulmoides > chlorogenic acid extracts of L. japonica > chlorogenic acid extracts of G. procumbens. Among these three chlorogenic acid extracts,the chlorogenic acid extracts of E. ulmoides had higher anti-lipid peroxidation,reducing capacity,and DPPH free radical scavenging capacity than other two chlorogenic acid extracts. [Conclusions] This paper reveals that among chlorogenic acid extracts of G. procumbens,L. japonica,and E. ulmoides leaves,the chlorogenic acid extracts of E. ulmoides leaves have a stronger antibacterial activity and antioxidant activity.
文摘Purpose: To design a seamless healthcare system to provide the elderly in the community of Wuhan city with active, real-time and seamless health services. Method: All of the health services for the elderly in the community of Wuhan city, such as chronic disease management, first aid, and diagnosis have been systematically integrated based on the Radio Frequency Identification (RFID) technology combined with the existing high-tech, such as nano-sensor, network, information system technology, wireless technology, Bluetooth and Area Position System (APS) positioning. Results: The system has been constructed and put into use, initially achieving seamless health services for the elderly. The majority of both the elderly and healthcare workers are satisfied with the system. Conclusion: The study initially proposes the use of RFID technology to plan and design the elderly healthcare system, and has successfully carried the system out and got positive outcomes. It provides a new direction in the relevant research fields.
