Reutilización de barrera de tela de algodón estéril en la práctica clínica: estudio observacional longitudinal / Reusing sterile cotton fabric barriers in the clinical practice: an observational and longitudinal study / Reuso de barreira estéril de tecido de algodão na prática clínica: estudo longitudinal observacional

Objetivo: analizar las características de barrera física y biológica de los campos de algodón utilizados como sistema de barrera estéril después de ser sometidos a múltiples usos y procesos en la práctica clínica. Método: estudio observacional longitudinal de seguimiento y evaluación de tela 100% algodón, utilizada como sistema de barrera estéril en un hospital de mediano porte. Se recolectaron muestras antes del uso (después de tres lavados) y después de tres, seis, nueve, 12 y 15 meses de uso y se evaluaron el número, grosor e integridad de los hilos, peso, absorción de agua y penetración húmeda de microorganismos. Resultados: después de 85 lavados, no cambió el número de hilos, aumentó el número de fibras deshilachadas y el volumen de agua absorbida. La prueba microbiológica mediante la metodología estándar alemana obtuvo un resultado negativo y la de penetración húmeda de microorganismos no mostró cambios significativos con el tiempo, a pesar de que una fracción de células microbianas pasó a través de las muestras de doble capa. Conclusión: las propiedades físicas de la tela 100% algodón utilizada como sistema de barrera estéril cambiaron con el uso/procesamiento; sin embargo, no interfirieron significativamente con los resultados obtenidos en las pruebas realizadas a la barrera microbiológica hasta los 85 lavados.

Objective: to analyze the physical and biological barrier characteristics of cotton fields used as a sterile barrier system after multiple use and processing cycles in the clinical practice. Method: an observational and longitudinal study to monitor and evaluate 100% cotton fabric used as a sterile barrier system in a medium-sized hospital. Samples were collected before use (after three washes) and at three, six, nine, 12 and 15 months of use and evaluated for the number, thickness and integrity of threads, weight, water absorption and wet penetration by microorganisms. Results: after 85 washes, the number of threads remained unchanged, and the shredded fibers and the water volume absorbed were increased. The microbiological test using the German standard methodology obtained a negative result and wet penetration by microorganisms did not show significant changes over time, although a percentage of the microbial cells passed through the double-layer samples. Conclusion: the physical properties of 100% cotton used as a sterile barrier system changed with use/processing cycles; however, these alterations did not significantly interfere with the results obtained by the tests performed on the microbiological barrier up to 85 washes.

Objetivo: analisar as características de barreira física e biológica de campos de algodão, que são utilizados como sistema de barreira estéril, após múltiplos usos e processamentos na prática clínica. Método: estudo longitudinal observacional de acompanhamento e de avaliação de tecido 100% algodão que foi utilizado como sistema de barreira estéril em um hospital de médio porte. Amostras foram coletadas antes do uso (após três lavagens) e com três, seis, nove, 12 e 15 meses de uso e avaliadas quanto ao número, à espessura e à integridade dos fios, peso, absorção de água e penetração úmida de micro-organismos. Resultados: após 85 lavagens, o número de fios permaneceu inalterado, porém aumentaram-se as fibras desfiadas e o volume de água absorvido. O teste microbiológico utilizando metodologia padrão alemão obteve resultado negativo; já o de penetração de úmida de micro-organismos não apresentou mudanças significativas ao longo do tempo, embora uma fração das células microbianas tenham passado pelas amostras de dupla camada. Conclusão: as propriedades físicas do tecido 100% algodão, utilizado como sistema de barreira estéril, alteraram com usos/processamentos; entretanto essas não interferiram significativamente nos resultados obtidos pelos testes realizados na barreira microbiológica até 85 lavagens.

Research progress in detection method for bisphenol A in food packaging materials / 上海预防医学

As an industrial chemical， bisphenol A is widely used in various food packaging materials. However， it is an endocrine disrupting chemical， which has estrogen activity and can cause certain damage to humans. So far， there are few studies on the detection of bisphenol A in self-heating food packaging materials， and there remains a lack of relevant standard. Therefore， it is necessary to establish a simple， sensitive and efficient method for the detection of bisphenol A in self-heating food. This study briefly introduces the pretreatment methods of bisphenol A， such as ultrasonic extraction， solid phase extraction， accelerated solvent extraction， and detection methods， such as gas chromatography-mass spectrometry， high performance liquid chromatography， fluorescent detection， and electrochemical detection.

Research progress on use of common packaging forms of injections / 药学实践杂志

Objective To provide theoretical reference and practical basis for accurately choosing the suitable packaging forms for different Injections. Methods Based on the raw materials in the common packaging forms of injections, the research and application progress on different packaging forms for injections were reviewed by analyzing the characteristics and technical requirements of different packaging forms, and the current registration information of pharmaceutical packaging materials in the Center for Drug Evaluation, NMPA were introduced. Results For preparations with small single-dose and low-cost, the ampoules or injection vials could be chosen. Powder injections are usually packaged in injection vials. For rescue medicines and valuable medicines, the pre-filled syringes could be chosen. For chronic disease treatment drugs (such as insulin) that require long-term injection, or some injections for emergency use, a pen-type syringe package that patients can inject themselves could be used. Neutral glass packaging or plastic packaging should be used for some acidic or alkaline. Conclusion The drug manufacturers should comprehensively consider the physicochemical properties of drugs, the performance of packaging raw materials, compatibility test results, price-cost, and convenience in carrying and use when choosing the appropriate packaging form to ensure the quality, safety, and effectivity of drugs.

On-Site Assessment of a Cryogenic Disinfectant for the Alpine Environment and Outer Packaging of Frozen Items / 生物医学与环境科学（英文）

OBJECTIVE@#To study the effectiveness and feasibility of cryogenic disinfectants in different cold scenarios and analyze the key points of on-site cryogenic disinfection.@*METHODS@#Qingdao and Suifenhe were selected as application sites for the manual or mechanical spraying of cryogenic disinfectants. The same amount of disinfectant (3,000 mg/L) was applied on cold chain food packaging, cold chain containers, transport vehicles, alpine environments, and article surfaces. The killing log value of the cryogenic disinfectant against the indicator microorganisms ( Staphylococcus aureus and Escherichia coli) was used to evaluate the on-site disinfection effect.@*RESULTS@#When using 3,000 mg/L with an action time of 10 min on the ground in alpine regions, the surface of frozen items, cold-chain containers, and cold chain food packaging in supermarkets, all external surfaces were successfully disinfected, with a pass rate of 100%. The disinfection pass rates for cold chain food packaging and cold chain transport vehicles of centralized supervised warehouses and food processing enterprises were 12.5% (15/120), 81.67% (49/60), and 93.33% (14/15), respectively; yet, the surfaces were not fully sprayed.@*CONCLUSION@#Cryogenic disinfectants are effective in disinfecting alpine environments and the outer packaging of frozen items. The application of cryogenic disinfectants should be regulated to ensure that they cover all surfaces of the disinfected object, thus ensuring effective cryogenic disinfection.

Promotion of ultra-processed foods in Brazil: combined use of claims and promotional features on packaging

ABSTRACT OBJECTIVE To assess the availability of different promotional strategies applied for UPF sales in Brazilian food retailers. METHODS Information available on food packaging was gathered from all packaged products sold in the five largest food retail chains in Brazil in 2017. UPF were identified using the NOVA food classification system. From this sample, data related to promotional characteristics, nutrition claims and health claims were collected and coded using the INFORMAS methodology. Additional claims referring to the Brazilian Dietary Guidelines were also collected. RESULTS This study evaluated the packaging of 2,238 UPF, of which 59.8% presented at least one promotional strategy. Almost one third denoted a simultaneous use of different promotional strategies in the same packaging. Nutrition claims were the most commonly found promotional strategy, followed by health claims and the use of characters. The food subgroups comprising the highest prevalence of promotional strategies on their labels were: noncaloric sweeteners (100.0%), breakfast cereals and granola bars (96.2%), juices, nectars and fruit-flavoured drinks (92.9%), other unsweetened beverages (92.9%), and other sweetened beverages (92.6%). CONCLUSIONS Considering the poor nutritional quality of UPF, the widespread presence of promotional features on their packaging highlights the need for marketing restrictions on this kind of product.

Effect of Packaging Materials and Storage Temperatures on the Microbiological Quality of Hibiscus sabdarifa Drinks during Ambient and Refrigeration Storage

Aims: To evaluate the effect of packaging materials and storage temperatures on the microbiological quality of Hibiscus sabdarifa drinks produced with: 1) commercial pineapple flavour (HCPF) and; 2) Phoenix dactylifera (38%) and pineapple extract (2%) (HPPE). Methodology: Pasteurized drinks packaged in polyethylene sachets, plastic and glass bottles were stored at refrigeration (4.4±2oC) and ambient (25±2oC) temperatures for 27 and 9 days respectively. Results: There was significant (P≤0.05) decrease in total bacterial count in HCPF (≤4.51-≥2.14 Log10CFU/ml) with higher death rate (0.06) in plastic bottles at 4.4±2oC while at 25±2oC it increased significantly (P≤0.05) in HPPE samples (4.00-≤4.95 Log10CFU/ml) with least growth rate in plastic bottles (0.02). Yeast count at 25±2oC (1.28 – 2.15 Log10CFU/ml) was significantly (P≤0.05) higher than at 4.4±2oC (1.00 – 1.60 Log10CFU/ml) and drinks in plastic bottles had the least growth rates (≤0.03). Coliform (2.04 – 2.59 Log10CFU/ml), Escherichia coli (2.00 – 2.93 Log10CFU/ml) and Staphylococcus (2.00 – 2.50 Log10CFU/ml) sparingly detected, were unable to grow in the drinks with greater inhibition at 25±2oC in all packaging materials. No growth of Salmonella was observed in the drinks. Glass bottles favoured more microbial growth but the levels were satisfactory for all packaging which is indicative of microbiological safety. Conclusion: Any of the packaging material can be used for packaging of Hibiscus sabdarifa drinks with storage at refrigeration temperature for ≤ 21 days. It is informative to both consumers and producers that the then wasted pineapple peels can serve as an ingredient in Hibiscus sabdarifa drink production.

Starch And Cellulose Based Bio-Polyethylene: A Review

In current year, there has been enhancing in the usage of plastic and disposal of waste coming from daily life. Various type of plastics are using for our daily needs, in order to reduce the impact of petroleum based plastics and other waste to be considered and focused on green plastics. Polyethylene are the polymers which can be produced by repeating the single units. It is one of the bittersweet coinage for human's better life. But this coinage causes a lot problems to the environment. To overcome this problem an alternative and eco-friendly Polyethylene is introduced called bio- polyethylene. Bio-polyethylene are from natural biomass sources. Among various source, starch has chief role in production of bio-polyethylene due to its low cost and nature abundance with plasticizers such as glycerol and vinegar. Starch based bio-polyethylene has good mechanical properties, tensile strength and biodegradability. Cellulose also used as source in development of biodegradable polyethylene. In this review starch and cellulose has led to their great innovative uses in food packaging and to improved biodegradation and mechanical properties.

CREATIVE PHOTOGRAPHY IN PACKAGING DESIGN

There are literally all manner of photographers, and the selection and direction of their creative work is often of nearly inestimable importance. Package design plays a crucial role in the development of a brand's identity. In this course, learn how to approach a package design project, and create a memorable design that accurately re?ects your brand and stands out from the competition. Packaging not only sets a stage for the brand but the ?rst the very experience with the brand. While unpacking the product, a customer either has a negative or a positive experience. A smart marketing strategy involves everything from branding, labelling to promoting and packaging. This research article is based on importance of creative photography in packaging design and also tried to evaluate the role of creative photography in contemporary packaging design.

Unravelling physiological and biochemical attributes influencing post harvest quality of gladiolus spikes after packaging and low temperature storage

The perishable nature of flowers urge for their appropriate post harvest management especially storage and packaging that keep the quality and potential vase life for better value. Gladiolus, commonly called as Sword lily, is a commercially important cut flower crop with elegant spikes, bright florets and good keeping quality. In the present study, we investigated the physiological and biochemical attributes affecting post harvest life of gladiolus spikes after packaging and storage. The spikes of four gladiolus cvs. Punjab Glance, Punjab Glad-1, Punjab Glad-2 and Punjab Pink Elegance were harvested at tight bud stage and packed in PP sleeves (25 ?m) and stored vertically at 4-5°C for 6, 9 and 12 days. After storage, the post harvest quality of both packed and unpacked spikes declined with more adverse effect on unpacked spikes. Among different storage durations, the spikes stored for 9 days showed good keeping quality parameters viz., vase life, per cent flower opened, floret size, days to opening of basal floret, maximum number of florets open at one time and water absorbed per spike which were at par with spikes stored for 6 days. The spikes stored for 12 days were found to be unacceptable in comparison to freshly harvested spikes and spikes stored for 6 and 9 days. The improved quality of spikes stored in sleeves could be accounted due to higher membrane stability index, relative water content, catalase and peroxidase activity as compared to unpacked spikes. Thus, loss in quality of spikes as compared to fresh during storage up to 9 days in PP sleeves is better than the complete loss of produce during transportation and gluts. Hence, the spikes of gladiolus could be stored dry at 4±0.5°C in PP sleeves for 9 days without much influence on its post harvest quality.

Herbal product labels: do they guide rational or irrational use?

Objective: The purpose of this study was to analyze the primary and secondary labels of plantbased medicines. Method: This research has a cross-sectional and descriptive. The procedure consisted of analyzing 100 labels of medicinal plant-based products used by elderly people from (in) Macapá-AP, in 2017. A script was prepared to verify their adequacy to health standards based on the Brazilian legislation (commercial name, botanical nomenclature, active ingredients, concentration, route of administration, age-restricted use, quantity and pharmaceutical form, preservation care, company name, CNPJ - Brazils's companies registration number, composition, SAC, expiration date, manufacture and batch), descriptive analysis of the data was performed (protocol number 38400314.9.0000.0003). Results: Only 4% of the products completely met the analyzed criteria. One of the main problems observed was the absence of a uniform standard of presentation of information on the packaging. About 7% of these products did not present any information besides the popular name of the medicinal plant used, 37% of the packages (or labels) contain statements and images that induce self-medication, errors in use, or references to "natural medicine", besides, transmitting the idea that the product has superior properties to drugs on the market. Conclusions: The results obtained suggest that the packaging of medicinal plant-based products induces the irrational use of medicines due to the lack of adequate information, as well as the presence of inadequate makenting strategies, in accordance with current national legislation.

Construction and identification of a HEK293 cell line with stable TrxR1 overexpression / 南方医科大学学报

OBJECTIVE@#To construct a HEK293 cell line stably overexpressing TrxR1 as a cell model for functional study of TrxR1 and screening of TrxR1-targeting drugs.@*METHODS@#TrxR1 gene was amplified by PCR and ligated with the lentivirus expression vector pLVX-Puro, which was transformed into Escherichia coli and identified by Sanger dideoxy sequencing. HEK293 cells were infected with the recombinant lentivirus vector (pLVX-Puro-TXNRD1) and screened with Puromycin for cell clones with stable TrxR1 overexpression (HEK293-TrxR1-OE cells). HEK293-TrxR1-OE cells, along with HEK293 cells infected with pLVX-Puro vector (HEK293-NC) and normal HEK293 cells, were tested for mRNA and protein expression levels of TrxR1 using RT-qPCR and Western blotting. TrxR1 enzyme activity in the cells was evaluated with insulin endpoint assay and TRFS-green probe imaging. The sensitivity of the cells to auranofin, a specific TrxR1 inhibitor, was determined with CCK8 assay.@*RESULTS@#TrxR1 gene was successfully inserted into the lentiviral vector pLVX-Puro as confirmed by DNA sequencing. The enzyme activity and mRNA and protein expression levels of TrxR1 were significantly higher in HEK293-TrxR1-OE cells than in HEK293 and HEK293-NC cells (P < 0.005). The inhibitory effects of auranofin on proliferation and cellular TrxR1 enzyme activity were significantly attenuated in HEK293-TrxR1-OE cells as compared with HEK293 and HEK293-NC cells (P < 0.005).@*CONCLUSION@#We successfully obtained a HEK293 cell line with stable TrxR1 overexpression, which shows resistance to auranofin and can be used for screening TrxR1 targeting drugs.

Preparation and characterization of Ad-ERα-36-Fc-GFP / 生物工程学报

ERα-36 is a novel subtype of estrogen receptor α which promotes tumor cell proliferation, invasion and drug resistance, and it serves as a therapeutic target. However, only small-molecule compounds targeting ERα-36 are under development as anticancer drugs at present. Gene therapy approach targeting ERα-36 can be explored using recombinant adenovirus armed with decoy receptor. The recombinant shuttle plasmid pDC316-Ig κ-ERα-36-Fc-GFP was constructed via genetic engineering to express an Ig κ-signaling peptide-leading secretory recombinant fusion protein ERα-36-Fc. The recombinant adenovirus Ad-ERα-36-Fc-GFP was subsequently packaged, characterized and amplified using AdMaxTM adenovirus packaging system. The expression of fusion protein and functional outcome of Ad-ERα-36-Fc-GFP transduction were further analyzed with triple-negative breast cancer MDA-MB-231 cells. Results showed that the recombinant adenovirus Ad-ERα-36-Fc-GFP was successfully generated. The virus effectively infected MDA-MB-231 cells which resulted in expression and secretion of the recombinant fusion protein ERα-36-Fc, leading to significant inhibition of EGFR/ERK signaling pathway. Preparation of the recombinant adenovirus Ad-ERα-36-Fc-GFP provides a basis for further investigation on cancer gene therapy targeting ERα-36.

The monitoring system of surgical textile in health services / Sistema de monitoreo de tejidos quirúrgicos en servicios sanitarios / Sistema de monitoramento de têxteis cirúrgicos em serviços de saúde

ABSTRACT Objectives: to report the implementation of a monitoring system of the operative field, surgical gown, and utilized fields as sterile barrier system of products for health, manufactured from cotton fabrics. Methods: technological innovation report of a monitoring system of the use and processing of surgical textiles in a medium-size hospital. Results: steps: planning, confection, exchange of the surgical textiles, monitoring, and 12 months of supervision. The new pieces were silkscreened with a black indelible marker. Final Considerations: the implemented system is practical, low cost, and easily manageable for the team, it favored the work process management, contributing to the quality and security of the textile used in health care, and being able to be implemented in other health services.

RESUMEN Objetivos: informar sobre la aplicación de un sistema de monitoreo de campos operatorios, delantales y campos quirúrgicos utilizados como sistema de barrera estéril para productos sanitarios fabricados con tejidos de algodón Métodos: se trata de un informe de innovación tecnológica de un sistema de monitoreo de uso y procesamiento de tejidos quirúrgicos de un hospital de porte medio. Resultados: etapas realizadas: planificación, confección, cambio de los tejidos quirúrgicos, control y seguimiento durante 12 meses. Las nuevas prendas fueron serigrafiadas con un marco de control, en el que después de cada ciclo de lavado se pintaba, con un rotulador negro indeleble, un espacio del marco. Consideraciones Finales: el sistema implantado demostró ser práctico, de bajo costo y de fácil ejecución, además de facilitar la gestión del proceso de trabajo y contribuir con la calidad y la seguridad del uso de textiles en el cuidado de la salud, con la posibilidad de reproducirse en otros servicios sanitarios.

RESUMO Objetivos: relatar a implementação de um sistema de monitoramento de campos operatórios, aventais cirúrgicos e campos utilizados como sistema de barreira estéril de produtos para a saúde confeccionados de tecidos de algodão. Métodos: relato de inovação tecnológica de um sistema de monitoramento do uso e processamento de têxteis cirúrgicos em um hospital de médio porte. Resultados: etapas percorridas: planejamento, confecção, troca dos têxteis cirúrgicos, monitoramento e acompanhamento por 12 meses. As novas peças foram serigrafadas com um quadro para o controle, no qual após cada ciclo de lavagem um espaço do quadro era pintado com um marcador indelével preto. Considerações Finais: o sistema implantado mostrou-se prático, de baixo custo e de fácil execução pela equipe, além de favorecer a gestão do processo de trabalho, contribuindo para a qualidade e segurança do uso dos têxteis na assistência à saúde, podendo ser reproduzido em outros serviços de saúde.

Influence of different packaging methods on the volume of low-dose suspended leucocyte depleted RBCs / 中国输血杂志

【Objective】 To investigate the influence of different packaging methods on the volume of low-dose(0.5 U) suspended leucocyte depleted red blood cells(SLD RBC) and provide reference for accurate labeling. 【Methods】 Bags of SLD RBC in 1.5 U and 2 U were randomly sampled to measure the weight and specific gravity of each bag, so as to estimate the blood volume.The relationship between the weight and volume of 0.5 U blood, split from different parent bags, was analyzed and the linear regression equation was put forward.The regression equation was used to calculate and analyze the difference in the volume of 0.5 U SLD RBC prepared by three different packaging methods (A: manual multi-bag average packing; B: instrument multi-bag average packing; C: manual single-bag packing) in actual work. 【Results】 The specific gravity of 1.5 U (38 bags) and 2 U SLD RBC (39 bags) were (1.090±0.011) g/mL and (1.097±0.013) g/mL, respectively, and the difference was statistically significant (P<0.05). After the 0.5 U subsidiary bags were split from the parent bags(1.5 U or 2 U), the regression equations for the volume (Y) of 0.5 U and gross weight (X) of the whole bag were respectively: Y1.5 U packing=0.902 7X-12.52 (P<0.05) and Y2 U packing=0.905 6X-13.15(P<0.05). In actual blood packaging, the average blood volume of 0.5 U subsidiary bags split from 1.5 U bag, using method A and B, were smaller than those split from 2 U bag [(62.12±5.38) mL and (62.50±6.77) mL vs (67.72±3.81) mL and(68.39±6.44)mL] (P<0.05), with the deviation of low-dose blood volume from 5.593 mL to 5.887 mL.The volume deviation by method B (10.84% and 9.42%) were greater than that by method A (8.67% and 5.63%). The average volume of 0.5 U subsidiary bags split from 1.5 U and 2 U by method C were (65.49±1.72) mL and (64.99±1.91) mL (P>0.05), with volume deviation at 2.63% and 2.94%, respectively.The mean volume value of overall 0.5 U blood (n=483) was (65.35±5.34) mL. 【Conclusion】 For packaging 0.5 U subsidiary bags, the instrument multi-bag packaging showed the largest volume deviation, followed by the manual multi-bag packaging and the single-bag packaging.The volume labeling of low-dose SLD RBC should be established, according to the specifications of parent bags and specific gravity.

Investigation and Suggestions on Factors Affecting Quality of Angelicae Dahuricae Radix (Baizhi) in Some Post-harvest Processes / 中国实验方剂学杂志

Objective:To investigate the factors affecting the quality of post-harvest Angelicae Dahuricae Radix （Baizhi） and to provide the corresponding suggestions according to these factors. Method:A series of factors affecting the quality of Baizhi were analyzed comprehensively by visiting several origins， medicinal material markets， pharmacies， supermarkets and storehouses combined with plenty of literature reports. Result:The rot of Baizhi was the most common phenomenon after harvest， and mildew， discoloration and moth could occur during the processes of processing， storage and packaging. So the quality of Baizhi should be controlled strictly through the whole process. The roots of Baizhi should be harvested on sunny days to avoid mining damage and dried as soon as possible to prevent rotting. The drying methods included both traditional lime burial and modern ways such as sulfur fumigation， saline dehydration， sun drying method， and oven drying method. However， the water content should be strictly controlled. Furthermore， the storehouses should be disinfected firstly. The temperature and humidity of the storehouses should be controlled strictly. Some suitable ways could be adopted to prevent moth and discoloration during storage， which included airtight fumigation of aluminum phosphide， cold storage， air conditioning maintenance， antagonism storage with other Chinese medicinal materials， dry ice storage at room temperature， etc. Large quantities of Baizhi were generally packaged in woven bags. Otherwise， kraft paper bags， polyvinyl chloride plastic bags， glass bottles， aluminum foil composite film bags， and other packaging materials had been adopted for the retail. However， the packaging specification should be selected according to the situation. Conclusion:The quality of Baizhi can be directly affected by harvesting， drying， processing， storage and packaging. Scientific and reasonable methods should be adopted to ensure the quality of Baizhi.

Packaging Related Terms and Their Application in Unique Device Identification System / 中国医疗器械杂志

This article introduces the significance of packaging for the implementation of Unique Device Identification System (UDI system) and some key terms associated with it. It is further supported by analyzing the important role it plays in building a successful UDI system. This article provides a reference for the related stakeholders to meet the requirement and implement UDI system.

Respuesta en poscosecha de frutos de agraz (Vaccinium meridionale Swartz) a almacenamiento en dos tipos de plástico / Postharvest response of berry fruits (Vaccinium meridionale Swartz) to storage in two types of plastic

RESUMEN La planta de agraz (Vaccinium meridionale Swartz) es una especie nativa de arándano de Colombia y su fruto es una baya globosa con propiedades nutraceúticas, debido a su excelente fuente de antioxidantes, utilizado como ingrediente para la preparación de alimentos. El objetivo del estudio fue evaluar las propiedades físico químicas del fruto, almacenado durante 12 días, a 2°C y 90% de HR. Se evaluaron frutos en dos estados de madurez: rompimiento de color, estado inmaduro (asociado al color rojo) y completamente pigmentado (100% pigmentación morado), los frutos fueron puestos en bolsas hechas de polietileno biorientado y polipropileno monoorientado. Los resultados muestran que los frutos inmaduros preservaron los sólidos solubles totales, cuando se mantuvieron en polipropileno monoorientado, mientras los sólidos solubles totales, se incrementaron significativamente en los frutos maduros almacenados en polipropileno monorientado, afectando el metabolismo del fruto y las reservas de carbohidratos. El pH disminuyó en todos los tratamientos; entre los 6 y 12DDT, coincidiendo, a su vez, con el aumento de la acidez total titulable durante el mismo periodo.

ABSTRACT 'Agraz' (Vaccinium meridionale Swartz) is a native blueberry from Colombia, being the fruit a globose berry, with nutraceutic quality due to an excellent source of antioxidants and is used as an ingredient for food preparation. The objective of this study was to evaluate the physical-chemical properties of fruits stored during 12 days, at a temperature of 2°C and a relative humidity of 90%. Fruits with two stages of ripeness, color break, an immature state (associated with red color), and fully pigmented (100% purple pigmentation) were stored, packaged in two different plastics recipients, one bioriented polyethylene and the other mono-oriented polypropylene. The results indicate that immature fruits demonstrated a prolonged preservation of the total soluble solids, when combined with the mono-oriented polypropylene packaging, otherwise TSS were significantly increased in mature fruits, packaged in mono-oriented polypropylene, affecting fruit metabolism and carbohydrate reserve. The pH diceased in all treatments, between 6 to 12 days after treatment, coinciding in turn, with the increase in total titratable acidity during the same period.

The plain packaging of tobacco products and its recognition by the WTO as a legitimate policy measure for the protection of public health / A embalagem genérica de produtos fumígenosderivados do tabaco e seu reconhecimento pela OMC como uma medida de política pública legítima para a proteção da saúde / El empaquetado neutro de tabaco y su reconocimiento por parte de la OMC como una medida política legítima para la protección de la salud pública

Introduction: the adoption by the WTO DSB of the Panel Reports that resolved the disputes against the Australian tobacco plain packaging scheme unveil important aspects of international health law intertwined with international trade law. Objectives: this paper aims at understanding the concept of plain packaging and the scope of the WTO decision for countries envisaging the adoption ofsimilar measures in policymaking. The research questions are descriptive and encompass how the position expressed by the WTO DSB affects the WHO FCTC and what legal reasoning the referred decision used. Methodology:ahistorical method is employed to identify the origins of plain packaging and the main concerns and challenges surrounding it, whilst a discursive analysis of the Panel Reports allows an interpretation of its basic principles and possible implications for public health policies. Results and discussion: from a microeconomic policy analysis, the standardization of tobacco packets is a reasonable regulatory approach at a government's disposal for addressing welfare losses due to externalities and internalities. Although there is no consensus on the empirical evidence supporting plain packaging, its assessment by the WTO Panel played a vital role in the decision rendered, notably with respect to Article 2.2 of the TBT Agreement and Article 20 of the TRIPS Agreement. Conclusion:Honduras and Dominican Republic have appealed and consequently a final ruling is still pending. Nonetheless, the decision is so far a recognition under WTO law of a State's regulatory autonomy to implement the necessary measures on behalf of public health.

Introdução: adecisão da OMC sobre embalagens genéricas de produtos fumígenos revela aspectos relevantes da relação entre o direito internacional da saúde com o direito internacional do comércio. Objetivos:este artigo analisa o conceito da embalagem genérica e o alcance da decisão da OMC para países que pretendem debater a adoção de medidas semelhantes. As perguntas de pesquisa são descritivas e perquirem a forma como a decisão da OMC se relaciona com a CQCT/OMS e a fundamentação jurídica em que ela se baseou. Metodologia: um método histórico é empregado para identificar as origens da embalagem e seus principais embates, enquanto uma análise discursiva da decisão da OMC permite a interpretação de seus princípios básicos e suas implicações na formulação de políticas de saúde. Resultados e discussão: uma análise econômica indica que a embalagem genéricaé uma alternativa regulatória razoável à disposição dos Estados para tentarem lidar com as perdas de bem-estar resultantes de externalidades e internalidades. Embora existam discordâncias quanto à efetividade das embalagens genéricas, os dados levados à OMC tiveram um papel importante na tomada da decisão, em particular na aplicação do artigo 2.2 do Acordo TBT e do artigo 20 do Acordo TRIPS. Conclusão:Honduras e República Dominicana recorreram. Um julgamento final ainda é aguardado, mas a atual decisão representa, à luz do direito internacional do comércio, um reconhecimento pela OMC da soberania e autonomia dos Estados para adotarem as medidas regulatórias baseadas em evidências que entendam necessárias para a tutela da saúde pública.

Introducción:la adopción del OSD de la OMC de los informes del Panel que resolvió lasdisputas contra el esquema de empaquetado neutro de tabaco en Australia revela aspectos importantes del derecho internacional de la salud entrelazados con derecho comercial internacional. Objetivos:comprender el concepto de empaquetado genérico y el alcance de la decisión de la OMC para los países que pretenden debatir la adopción de medidas similares. Las preguntas de investigación son descriptivas y abarcan cómo la posición expresada por la OMC afecta el CMCT/OMS y la base legal de la decisión. Metodología:un método histórico sirve para identificar los orígenes de los paquetes estandarizados, mientras que un análisis discursivo de la decisión de la OMC permite la interpretación de sus principios básicos y sus implicaciones para la formulación de políticas de salud. Resultados y discusión:la estandarización de los paquetes de tabaco es un enfoque regulatorio a disposición del gobierno para abordar las afectaciones al bienestar social causadas por externalidades e internalidades. Aunque no hay consenso sobre la evidencia empírica que respalda el empaquetado neutro, su evaluación por el Panel de la OMC desempeñó un papel importante en la decisión emitida, en particular con respecto al Artículo 2.2 del Acuerdo OTC y el Artículo 20 de Acuerdo sobre los ADPIC.Conclusión:aunque Honduras y República Dominicana han apelado y, en consecuencia, aún está pendiente la resolución final; la decisión es hasta ahora es un reconocimiento bajo la ley de la OMC de la autonomía reguladora de un Estado.

Studies on shelf life extension of guava (Cv. Sardar) using different packaging materials

Aim: The study aimed to evaluate different packaging materials at different storage conditions for improving the shelf life of guava fruits.Methodology: The guava fruits (Cv. Sardar) were stored at ambient and cold storage conditions (10°C, 90% RH) in four packaging materials viz., Cellulose acetate film bags (CAFB), Breathing bags (BB), Polypropylene bags (PPB) and Brown paper bags (BPB). The quality attributes like physiological loss in weight, colour, fruit firmness, sensory score and biochemical parameters such as non-reducing sugars, reducing sugars, total sugar, acidity, ascorbic acid, Total Soluble Solids (TSS) and pectin were evaluated. Results: There was significant effect of packaging materials and storage conditions on quality of guava fruits during storage. The average weight loss at ambient condition irrespective of packaging material was twice (0.86 % per day) than that of cold storage condition (0.41 % per day). The average weight loss irrespective of storage conditions was highest for control fruits at ambient condition (1.88 % per day) and lowest for the fruits packed in Polypropylene bags (0.018 % per day). The fruit firmness decreased with storage period. Non-reducing sugars, reducing sugars and total sugars increased initially and subsequently decreased. Titrable acidity, ascorbic acid and pectin reduced and total soluble solids increased with advancement of storage period. Sensory evaluation revealed that fruits stored in cellulose acetate film bags and breathing bags at cold storage conditions could achieve shelf life of 18 days with high overall acceptability. Interpretation: Studies revealed that the guava fruits can be stored upto 18 days in cellulose acetate film bags and breathing bags at 10°C with 90% RH storage conditions with acceptable sensory score.

Architecture of the herpesvirus genome-packaging complex and implications for DNA translocation

Genome packaging is a fundamental process in a viral life cycle and a prime target of antiviral drugs. Herpesviruses use an ATP-driven packaging motor/terminase complex to translocate and cleave concatemeric dsDNA into procapsids but its molecular architecture and mechanism are unknown. We report atomic structures of a herpesvirus hexameric terminase complex in both the apo and ADP•BeF3-bound states. Each subunit of the hexameric ring comprises three components-the ATPase/terminase pUL15 and two regulator/fixer proteins, pUL28 and pUL33-unlike bacteriophage terminases. Distal to the nuclease domains, six ATPase domains form a central channel with conserved basic-patches conducive to DNA binding and trans-acting arginine fingers are essential to ATP hydrolysis and sequential DNA translocation. Rearrangement of the nuclease domains mediated by regulatory domains converts DNA translocation mode to cleavage mode. Our structures favor a sequential revolution model for DNA translocation and suggest mechanisms for concerted domain rearrangements leading to DNA cleavage.