Abstract Changes in bacterial community composition and bacterial counts of chilled pork during storage at 4 °C were unraveled by culture-dependent method and culture-independent method. Physical and chemical analyses including drip loss, total volatile basic nitrogen (TVB-N), pH, and surface color were also performed to estimate its quality and shelf life. A total of 37 phyla, 575 genera and 843 species were identified in all samples by high-throughput sequencing technology during 10 days’ storage. At the phylum level, Proteobacteria and Firmicutes were the dominant phylum. At the genus level, Pseudomonas spp., Acinetobacter spp., Pantoea spp., Brochothrix spp. and Raoultella spp. were the dominant genera with their average relative abundance above 5%. In addition, 12 species with average relative abundance more than 1% were found. These dominant bacteria were main pathogenic or spoilage bacteria, and seriously affected the quality of chilled meat. Based on the results of total viable counts (TVC), TVB-N level and sensory evaluation, the shelf life of chilled pork stored at 4 °C was no more than 3 days. Through the analyses of the TVC and the microbial community structure during the spoilage of chilled pork, the main microorganisms causing spoilage were revealed, which will guide significance for further control microbial quality of chilled pork.

Abstract Comparative efficacy of sodium lactate and Natamycin as preservative against discoloration and spoilage of fresh beef stored at 4 °C were evaluated. Fresh beef was treated with 3 g/L sodium lactate and Natamycin, respectively, and sterilized physiological saline was used as negative control. The spoilage of beef samples was monitored by pH, total volatile basic nitrogen (TVB-N), discoloration, sensory analysis and bacterial quality which were determined by culture-dependent and culture-independent analyses. The acceptable shelf life of fresh beef treated by sodium lactate and Natamycin reached 6 days and 4 days, respectively. Whereas, the control sample was acceptable for 3 days. The two kinds of preservative were conducive to hygiene levels improvement. Lactobacillus spp. and Weissella spp. sharply displaced the Ralstoni spp. with high potential spoilage and became the predominant bacteria, and the proliferation of Serratia spp. as the representatives’ genus of psychrotrophic Enterobacteriaceae were completely controlled in the preservative treated samples. Sodium lactate displayed a remarkable efficacy against discoloration and spoilage of chilled beef, resulting in shelf life extension by 3-4 days. Natamycin has a remarkable antibacterial efficacy but a little efficacy against discoloration. Thus, sodium lactate is more suitable for freshness promotion of chilled beef.

Abstract Objective China launched an innovative program of catastrophic medical insurance (CMI) to protect households from catastrophic health expenditure (CHE) and impoverishment. This article assesses the effect of CMI on relieving CHE and impoverishment from catastrophic illnesses in urban and rural China. Method In total, 8378 cases are included in the analysis. We employed descriptive statistical analysis to compare the incidence and intensity of CHE at five health expenditure levels, from 1 June 2014 to 31 May 2015. To illustrate the different protection of the policy, we analyzed the data in two lines, the covered medical expenses and the total medical expenses. Results CMI drop down CHE incidence from 4.8% to 0.1% and the mean catastrophic payment gap from 7.9% to zero when only considering covered medical expenses. CMI drop down CHE incidence from 15.5% to 7.9% and the mean catastrophic payment gap from 31.2% to 14.7% when considering total medical expenses. If CMI reimburse uncovered medical expenses at 30%, the mean catastrophic payment gap could be 7.9% and insured person's annual premium will increase US$2.19. Conclusions China CMI perfectly meet the pursued policy objectives when only considering the covered medical expenses. However, when considering the total medical expenses, the CMI is only partially effective in protecting households from CHE. The considerable gap is the result of the limitation of CMI list.

Resumen Objetivo China lanzó un innovador programa de Seguro Catastrófico de Salud (SCS) para proteger a los hogares del gasto sanitario catastrófico (GSC) y el empobrecimiento. Este artículo evalúa el efecto del SCS para aliviar el GSC y el empobrecimiento a causa de las enfermedades catastróficas en zonas urbanas y rurales de China. Método En total, se incluyen 8378 casos en el análisis. Se emplearon análisis estadísticos descriptivos para comparar la incidencia y la intensidad del GSC en cinco niveles de gastos de salud, del 1 de junio de 2014 al 31 de mayo de 2015. Para ilustrar la diferente protección de la política se analizaron los datos en dos líneas: los gastos sanitarios cubiertos por el seguro y los gastos sanitarios totales. Resultados Considerando los gastos cubiertos por el seguro, se redujeron los hogares con gastos catastróficos del 4,8% al 0,1%, y la brecha de pago catastrófico media cayó del 7,9% al 0,0% en promedio. Cuando consideramos el gasto sanitario total, los hogares con gasto catastrófico se redujeron del 15,5% al 7,9%, y la brecha de pago catastrófico media cayó del 31,2% al 14,7% en promedio. Esta cantidad podría reducirse al 7,9% si se reembolsara el 30% a los gastos no cubiertos por el SCS, lo que supondría un aumento de la prima del seguro por persona de US$ 2,19. Conclusiones El SCS de China cumple perfectamente los objetivos de la política perseguida cuando solo se consideran los gastos cubiertos por el seguro. Si se consideran los gastos totales, el SCS solo es parcialmente efectivo para proteger a los hogares del gasto sanitario catastrófico. El motivo de este desfase es la limitación existente en la lista de servicios cubiertos por el SCS.

Abstract Objective China launched an innovative program of catastrophic medical insurance (CMI) to protect households from catastrophic health expenditure (CHE) and impoverishment. This article assesses the effect of CMI on relieving CHE and impoverishment from catastrophic illnesses in urban and rural China. Method In total, 8378 cases are included in the analysis. We employed descriptive statistical analysis to compare the incidence and intensity of CHE at five health expenditure levels, from 1 June 2014 to 31 May 2015. To illustrate the different protection of the policy, we analyzed the data in two lines, the covered medical expenses and the total medical expenses. Results CMI drop down CHE incidence from 4.8% to 0.1% and the mean catastrophic payment gap from 7.9% to zero when only considering covered medical expenses. CMI drop down CHE incidence from 15.5% to 7.9% and the mean catastrophic payment gap from 31.2% to 14.7% when considering total medical expenses. If CMI reimburse uncovered medical expenses at 30%, the mean catastrophic payment gap could be 7.9% and insured person's annual premium will increase US$2.19. Conclusions China CMI perfectly meet the pursued policy objectives when only considering the covered medical expenses. However, when considering the total medical expenses, the CMI is only partially effective in protecting households from CHE. The considerable gap is the result of the limitation of CMI list.

Resumen Objetivo China lanzó un innovador programa de Seguro Catastrófico de Salud (SCS) para proteger a los hogares del gasto sanitario catastrófico (GSC) y el empobrecimiento. Este artículo evalúa el efecto del SCS para aliviar el GSC y el empobrecimiento a causa de las enfermedades catastróficas en zonas urbanas y rurales de China. Método En total, se incluyen 8378 casos en el análisis. Se emplearon análisis estadísticos descriptivos para comparar la incidencia y la intensidad del GSC en cinco niveles de gastos de salud, del 1 de junio de 2014 al 31 de mayo de 2015. Para ilustrar la diferente protección de la política se analizaron los datos en dos líneas: los gastos sanitarios cubiertos por el seguro y los gastos sanitarios totales. Resultados Considerando los gastos cubiertos por el seguro, se redujeron los hogares con gastos catastróficos del 4,8% al 0,1%, y la brecha de pago catastrófico media cayó del 7,9% al 0,0% en promedio. Cuando consideramos el gasto sanitario total, los hogares con gasto catastrófico se redujeron del 15,5% al 7,9%, y la brecha de pago catastrófico media cayó del 31,2% al 14,7% en promedio. Esta cantidad podría reducirse al 7,9% si se reembolsara el 30% a los gastos no cubiertos por el SCS, lo que supondría un aumento de la prima del seguro por persona de US$ 2,19. Conclusiones El SCS de China cumple perfectamente los objetivos de la política perseguida cuando solo se consideran los gastos cubiertos por el seguro. Si se consideran los gastos totales, el SCS solo es parcialmente efectivo para proteger a los hogares del gasto sanitario catastrófico. El motivo de este desfase es la limitación existente en la lista de servicios cubiertos por el SCS.