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1.
Rev. tecnol. (St. Tecla, En línea) ; (15): 36-42, ene.-dic. 2022. ilus.^c28 cm., graf., tab.
Artigo em Espanhol | BISSAL, LILACS | ID: biblio-1413127

RESUMO

La Escuela Especializada en Ingeniería ITCA FEPADE, MEGATEC La Unión, a través de la carrera Técnico en Manejo Integrado de Recursos Costero Marino con especialidad en Acuicultura y Pesquería, realizó esta investigación en asocio con Camaronera Eben Ezer. El proyecto tuvo como objetivo la caracterización de la calidad física, química y biológica del agua del Golfo de Fonseca y el Estero El Chapernal, previo al desarrollo de dos ciclos de cultivo de camarón marino Litopenaeus vannamei, durante el cultivo y antes de las descargas de agua a los efluentes receptores. La metodología se desarrolló en tres fases, de junio a diciembre de 2021. Fase de campo: toma de parámetros físicos, químicos y biológicos en 8 puntos de muestreos, Estero El Chapernal, Golfo de Fonseca y estanques de producción. Fase de laboratorio: se realizó sembrando muestras de agua en medios de cultivo para aislamiento, crecimiento e identificación de bacterias. Tercera fase: procesamiento de datos y análisis de resultados. Se identificaron tres tipos de bacterias: Psudomonas, Vibrios y Heterótrofas. En el primer ciclo de junio a agosto, éstas no reportaron crecimiento, esto pudo deberse a que la transición de la época seca a época lluviosa influyó en los factores físicos y químicos, como la temperatura y el pH. Durante el primer ciclo, la calidad del agua del Estero El Chapernal mantuvo estándares idóneos para el crecimiento del camarón. El segundo ciclo presentó un crecimiento exponencial de las bacterias Heterótrofas y Pseudomonas sobrepasando los límites de referencia establecidos en la normativa vigente. Como parte de la proyección social se efectuó transferencia de conocimientos y tecnología durante la producción, se establecieron mejoras para la operatividad y se les dotó de un protocolo de producción acuícola.


The Escuela Especializada en Ingeniería ITCA FEPADE, MEGATEC La Unión, through the major of Técnico en Manejo Integrado de Recursos Costero Marino con especialidad en Acuicultura y Pesquería, carried out this research in association with Camaronera Eben Ezer. The objective of the project was to characterize the physical, chemical and biological quality of water in Golfo de Fonseca and Estero El Chapernal, prior to the development of two culture cycles of the marine shrimp Litopenaeus vannamei, during the culture and before discharges of water to receiving effluents. The methodology was developed in three phases, from June to December 2021. Field phase: collection of physical, chemical and biological parameters at 8 demonstration points, Estero El Chapernal, Golfo de Fonseca and production ponds. Laboratory phase: it was carried out by planting water samples in culture media for isolation, growth and identification of bacteria. Third phase: data processing and analysis of results. Three types of bacteria were identified: Psudomonas, Vibrios and Heterotrophs. In the first cycle from June to August, growth was not reported, due to the fact that the transition from the dry season to the rainy season influenced in physical and chemical factors, such as temperature and pH. During the first cycle, the water quality of Estero El Chapernal maintained optimal standards for shrimp growth. The second cycle presented an exponential growth of Heterotrophic and Pseudomonas bacteria, exceeding the reference limits established in current regulations. As part of the social projection, knowledge and technology were transferred during production, they were profoundly improved for operability and they were provided with an aquaculture production protocol.


Assuntos
Qualidade da Água , Aquicultura/métodos , Astacoidea/crescimento & desenvolvimento , Produção Agrícola , Lagoas
2.
Toxins (Basel) ; 14(7)2022 06 21.
Artigo em Inglês | MEDLINE | ID: mdl-35878160

RESUMO

The fungal ear rot of maize cultivated in temperate areas is mainly due to the Fusarium species. The use of insecticides against European Corn Borer (ECB) reduces the severity of fungal ear rot as well as the fumonisin (FB) and moniliformin (MON) levels in maize kernels at harvest, which in turn results in a lowering of their effect on deoxynivalenol (DON) control. However, the direct fungicidal control of ear rot has rarely been implemented for maize, and the first studies reported conflicting results on the reduction of mycotoxins. In the present experiment, field trials were carried out in North Italy over three growing seasons to study the effect of fungicide application timings on maize to control mycotoxins, considering the interaction of the application with the insecticide treatment, according to a full factorial split plot design. The mycotoxin content was determined through LC-MS/MS analysis. The field trials showed a significant reduction in ECB severity (75%), fungal ear rot severity (68%), Fusarium Liseola section infection (46%), FBs (75%) and MON (79%) as a result of the insecticide application for all the years, while the DON content increased by 60%. On the other hand, a fungicide application alone or applied in plots protected by an insecticide was never effective for the fungal symptoms, infection or mycotoxin content. The results confirm that a correct insecticide application to control ECB damage is the most effective agrochemical solution for the control of fungal ear rot, FBs and MON.


Assuntos
Fumonisinas , Fungicidas Industriais , Fusarium , Inseticidas , Micotoxinas , Cromatografia Líquida , Ciclobutanos , Contaminação de Alimentos/análise , Contaminação de Alimentos/prevenção & controle , Fumonisinas/análise , Fungicidas Industriais/análise , Fungicidas Industriais/farmacologia , Fusarium/química , Micotoxinas/análise , Doenças das Plantas/microbiologia , Doenças das Plantas/prevenção & controle , Espectrometria de Massas em Tandem , Tricotecenos , Zea mays/microbiologia
3.
Heliyon ; 8(1): e08708, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35036601

RESUMO

Synthetic pesticides are widely applied for pest and disease control in Indonesia. However, a lack of knowledge and use of Good Agricultural Practices (GAP) for safe pesticide usage among Indonesian farmers remains a problem. This study aims to investigate the gap between farmers' knowledge of GAP for safe pesticide usage and their application of it. This research was conducted in 2020 in five Indonesian provinces. Primary data collection was by means of a survey, in which 298 respondents answered structured questionnaires. The survey also identified the sources of the information recorded and the respondents' experience of pesticide exposure. The analysis tools used were the Wilcoxon Signed Ranked Test and Importance-Performance Analysis (IPA). There were significant differences in the results of the first analysis. These results appear to confirm the results of further analysis using IPA, which show that a high level of knowledge does not mean that farmers will apply this knowledge in practice: this is particularly relevant to wearing gloves and masks, using tools to remove blockages, never clearing blocked nozzles by blowing into them, and disposing of empty containers properly. Nevertheless, in some cases high levels of knowledge do result in high levels of application. Cases of pesticide exposure affecting human health by causing symptoms such as dizziness, nausea, and vomiting confirm that GAP for pesticide usage are not being implemented properly by some farmers. It is therefore recommended that their knowledge should be enhanced through the series of technical training programs using participatory approaches, so that farmers accumulate knowledge which will drive them to adopt GAP for safe pesticide usage.

4.
Pharmacol Res ; 167: 105533, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33677104

RESUMO

Owing to modern developments in the traditional medicine industry, more people now acknowledge the efficacy of traditional medicine. As the demand for herbal medicines gradually increases, the focus of the industry will shift to how to increase production while maintaining the high quality of raw materials and final products to promote the international trade in herbal medicines. In the long history of herbal medicine, many countries and regions have formulated relevant standards to regulate the cultivation of local herbs to ensure the safety and reliability of the products. Due to cultural and historical differences, the policies for formulating herbal cultivation standards vary greatly between regions, which hinders the international trade of herbal medicines. This paper collates the guidelines of good agricultural and collection practices of the European Union, China, World Health Organization and the United States, and makes a comprehensive comparison of its contents such as production environments, production area suitability, air, soil, and water standard regulations, inter alia. This article aims to explore the differences in good agriculture and collection practice in herbal medicine in various regions and provides a reference for the development of international guidelines for herbal quality management, which will aid with the development of herbal medicine quality standardization globally and exchange services in the trade of herbal medicines.


Assuntos
Agricultura , Medicina Herbária , Agricultura/métodos , China , Comércio , União Europeia , Medicina Herbária/métodos , Extratos Vegetais/química , Extratos Vegetais/uso terapêutico , Plantas Medicinais/química , Plantas Medicinais/crescimento & desenvolvimento , Controle de Qualidade , Estados Unidos
5.
Microorganisms ; 8(1)2020 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-31968531

RESUMO

Mycotoxin contamination is one of the main problems affecting corn production, due to its significant risk to human and animal health. The Fusarium and Aspergillus species are the main producers of mycotoxins in maize, infecting both pre-harvest and during storage. In this work, we evaluated the presence of mycotoxins and their producing species along maize production cycles in three different stages (anthesis, harvest, and storage) during three consecutive seasons (2016-2018). Fungal occurrences were studied using species-specific PCR protocols, whereas mycotoxin levels were determined by LC-MS/MS. Fumonisin-producing Fusarium species (F. verticillioides and F. proliferatum), as well as the aflatoxin producer Aspergillus flavus, were the most predominant species at all stages; although, during some seasons, the presence of F. graminearum and A. niger aggregate species were also identified. Contrastingly, fumonisins were the only mycotoxins detected and levels were always under legal regulations. The results presented here demonstrate that even when fungal contamination occurs at the early stages of the maize production cycle, the application of good agricultural and storage practices might be crucial to ensure mycotoxin-free grains.

6.
Arq. Inst. Biol ; 87: e0032020, 2020. tab
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1130088

RESUMO

In order to characterize the milk production chain and study the dairy herd health in the city of Codó, state of Maranhão, Brazil, a checklist was applied and tests were carried out to detect clinical and subclinical mastitis using mastitis test strip cup and the California mastitis test (CMT), from June to August 2019, in 295 dairy cows from 20 farms. Water and milk samples were collected for microbiological analysis. It was observed that herdsmen do not have adequate knowledge about good agricultural practices. As for milking, only 60% are performed in corrals with coverage, and as for the floor, 60% are made of clay and 40% are made of concrete. In 35% of the properties, the water used in milking management comes from wells and the rest from dams. Pre and postdipping practices, CMT, mastitis strip cup test and the adoption of a mastitis control program are not carried out on any of the properties Two cows tested positive for subclinical mastitis and one cow tested positive for tuberculosis. In the microbiological analysis of the milk, a high count of total coliforms and thermotolerants was obtained, with values between 23 to > 1,100 MPN/mL and < 3.0 to > 1,100 MPN/mL, respectively. The presence of coagulase positive staphylococci was also observed in 25% of the samples. The water samples also showed high contamination by total coliforms between 4.1 to > 2.419.6 MPN/mL and 40% showed the presence of Escherichia coli. These results reflect the need for more investments in technical assistance and technical training for these producers.(AU)


Este estudo teve como objetivo caracterizar a cadeia produtiva do leite e estudar a sanidade do rebanho leiteiro do município de Codó, estado do Maranhão, Brasil, através da aplicação de um checklist e da realização de exames para detecção de mastite clínica e subclínica pelos métodos da caneca do fundo escuro e California mastitis test (CMT), no período de junho a agosto de 2019, em 295 vacas leiteiras procedentes de 20 propriedades. Coletaram-se amostras de leite e água da ordenha para análises microbiológicas. Observou-se que os ordenhadores não possuem conhecimento adequado sobre as boas práticas agropecuárias. Quanto à realização da ordenha, apenas 60% realizam-na em currais com cobertura; quanto ao piso, 60% são de terra batida e 40% de concreto. A água utilizada no manejo da ordenha é proveniente de poços em 35% das propriedades e as demais de açudes. As práticas de pré e pós-dipping e os testes CMT e caneca de fundo escuro e a adoção de programa de controle da mastite não são realizados em nenhuma das propriedades. Diagnosticaram-se duas vacas com mastite subclínica e uma com tuberculose e verificou-se elevada contaminação por coliformes totais e termotolerantes nas análises microbiológicas do leite, variando entre 23 NMP/mL a >1.100 NMP/mL e < 3.0 a > 1.100 NMP/mL, respectivamente, e presença de estafilococos coagulase positivos em 25% das amostras. As amostras de água também apresentaram elevada contaminação por coliformes totais entre 4,1 NMP/mL a > 2.419,6 NMP/mL e 40% apresentaram presença de Escherichia coli. Esses resultados refletem a necessidade de mais investimentos em assistência técnica e treinamento técnico para esses produtores.(AU)


Assuntos
Animais , Bovinos , Leite/microbiologia , Gado , Inocuidade dos Alimentos , Técnicas Microbiológicas , Coagulase , Normas de Qualidade de Alimentos , Escherichia coli , Método de Tubulação Múltiplo , Lista de Checagem , Mastite
7.
Arq. bras. med. vet. zootec. (Online) ; 71(6): 2075-2084, Nov.-Dec. 2019. tab
Artigo em Português | LILACS, VETINDEX | ID: biblio-1055143

RESUMO

Objetivou-se com este estudo desenvolver e validar uma ferramenta semiológica para diagnóstico do nível de adoção e conformidade das boas práticas agropecuárias em fazendas de produção de leite, segundo requisitos preconizados pela Food and Agriculture Organization of the United Nations (FAO) e pela International Dairy Federation (IDF). A ferramenta foi testada em 62 fazendas de produção de leite, em seis diferentes regiões do estado do Rio Grande do Sul, como parte das ações do Projeto Protambo - "Transferência de tecnologias para o desenvolvimento da atividade leiteira no RS com base nas boas práticas agropecuárias" - da Empresa Brasileira de Pesquisa Agropecuária, Embrapa, entre janeiro de 2014 e março de 2017. A validação da ferramenta não apontou divergências estatisticamente significativas entre avaliadores, satisfazendo o parâmetro de exatidão para métodos de medições exigidos pela ISO/IEC 17025. Foi evidenciado um espaço de variação que mostrou desenvolvimento de métrica, em que se obteve consistência (coerência) de medição. O teste t-Student aproximado para a comparação de médias de não conformidades nas BPA mostrou melhora significativa no grupo tratamento (diagnóstico seguido de plano de ajuste) quando comparado ao controle (diagnóstico sem plano de ajuste subsequente). Essa nova abordagem semiológica contribui para a adoção das BPA em fazendas leiteiras, para a melhoria da qualidade do leite e da segurança na cadeia produtiva de lácteos.(AU)


This study reports the development and validation of a novel diagnostic tool, based on the FAO and IDF ¨Guide to Good Dairy Farming Practice¨. Sixty-two dairy farms over six different regions within the State of Rio Grande do Sul were selected, evaluated and ranked, from January 2014 to March 2017; as part of the PROTAMBO- Dairying Technology Transfer Project (EMBRAPA). Results indicated that the proposed diagnostic tool was significantly consistent among different field evaluators, meeting trueness validation parameter for ISO/IEC 17025 validation requirement. Binomial distribution of probabilities of positive changes showed significant kind of metric evolution for the treatment group when compared to the control, in addition to significant consistency. Approximated t-Student test for comparison of the means of GAP non-compliances demonstrated significant improvements for the treatment group relative to the control. This novel approach could assist in overcoming existing and emerging GAP challenges to maximize dairy quality.(AU)


Assuntos
Qualidade dos Alimentos , Leite/microbiologia , Boas Práticas de Fabricação , Indústria Agropecuária , Criação de Animais Domésticos/métodos , Legislação sobre Alimentos
8.
Environ Sci Pollut Res Int ; 26(7): 6829-6838, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30635883

RESUMO

The main purpose of this study was to analyze the perceived outcomes of Good Agricultural Practices (GAPs) technologies adoption in order to sustain citrus farms in Mazandaran province, Iran. Study population consisted of all citrus growers in the villages of 12 counties of Mazandaran province, which a sample of 290 orchardmen were selected through a proportional random sampling technique. A questionnaire was designed to collect data which was both valid and reliable according to expert opinion and Cronbach's alpha coefficient respectively. The results of the factor analysis showed that "market access and safe product exports," "consumer' health and environment-friendly behavior," "safe production and public demand," and "information sharing and strengthening local associations" were the four perceived outcomes of GAPs technologies adoption in citrus farms of Iran. These factors explained 65.02% of the total variance. These four perceived outputs of GAPs support economic, environmental, and social sustainability dimensions respectively.


Assuntos
Agricultura/métodos , Conservação dos Recursos Naturais/métodos , Citrus , Meio Ambiente , Fazendas , Humanos , Irã (Geográfico) , Percepção , Tecnologia
9.
Foods ; 7(3)2018 Mar 03.
Artigo em Inglês | MEDLINE | ID: mdl-29510498

RESUMO

Food safety standards are a necessity to protect consumers' health in today's growing global food trade. A number of studies have suggested safety standards can interrupt trade, bringing financial and technical burdens on small as well as large agri-food producers in developing countries. Other examples have shown that economical extension, key intermediaries, and funded initiatives have substantially enhanced the capacities of growers in some countries of the Middle East and North Africa (MENA) region to meet the food safety and quality requirements, and improve their access to international markets. These endeavors often compensate for the weak regulatory framework, but do not offer a sustainable solution. There is a big gap in the food safety level and control systems between countries in the MENA region and those in the developed nations. This certainly has implications for the safety of fresh produce and agricultural practices, which hinders any progress in their international food trade. To overcome the barriers of legal and private standards, food safety should be a national priority for sustainable agricultural development in the MENA countries. Local governments have a primary role in adopting the vision for developing and facilitating the implementation of their national Good Agricultural Practices (GAP) standards that are consistent with the international requirements and adapted to local policies and environment. Together, the public and private sector's support are instrumental to deliver the skills and infrastructure needed for leveraging the safety and quality level of the agri-food chain.

10.
Int J Food Microbiol ; 257: 238-246, 2017 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-28697385

RESUMO

A quantitative microbial contamination model of Escherichia coli during primary production of baby spinach was developed. The model included only systematic contamination routes (e.g. soil and irrigation water) and it was used to evaluate the potential impact of weather conditions, agricultural practices as well as bacterial fitness in soil on the E. coli levels present in the crop at harvest. The model can be used to estimate E. coli contamination of baby spinach via irrigation water, via soil splashing due to irrigation water or rain events, and also including the inactivation of E. coli on plants due to solar radiation during a variable time of culturing before harvest. Seasonality, solar radiation and rainfall were predicted to have an important impact on the E. coli contamination. Winter conditions increased E. coli prevalence and levels when compared to spring conditions. As regards agricultural practices, both water quality and irrigation system slightly influenced E. coli levels on baby spinach. The good microbiological quality of the irrigation water (average E. coli counts in positive water samples below 1 log/100mL) could have influenced the differences observed among the tested agricultural practices (water treatment and irrigation system). This quantitative microbial contamination model represents a preliminary framework that assesses the potential impact of different factors and intervention strategies affecting E. coli concentrations at field level. Taking into account that E. coli strains may serve as a surrogate organism for enteric bacterial pathogens, obtained results on E. coli levels on baby spinach may be indicative of the potential behaviour of these pathogens under defined conditions.


Assuntos
Irrigação Agrícola , Escherichia coli O157/isolamento & purificação , Contaminação de Alimentos/análise , Água Doce/microbiologia , Spinacia oleracea/microbiologia , Agricultura/métodos , Contagem de Colônia Microbiana , Chuva , Estações do Ano , Microbiologia do Solo , Espanha , Luz Solar , Microbiologia da Água
11.
J Sci Food Agric ; 97(9): 2908-2918, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27804134

RESUMO

BACKGROUND: Food safety is a key public health issue worldwide. This study aims to characterise existing governance mechanisms - governance structures (GSs) and food safety management systems (FSMSs) - and analyse the alignment thereof in detecting food safety hazards, based on empirical evidence from Lebanon. RESULTS: Firm-to-firm and public baseline are the dominant FSMSs applied in a large-scale, while chain-wide FSMSs are observed only in a small-scale. Most transactions involving farmers are relational and market-based in contrast to (large-scale) processors, which opt for hierarchical GSs. Large-scale processors use a combination of FSMSs and GSs to minimise food safety hazards albeit potential increase in coordination costs; this is an important feature of modern food supply chains. The econometric analysis reveals contract period, on-farm inspection and experience having significant effects in minimising food safety hazards. However, the potential to implement farm-level FSMS is influenced by formality of the contract, herd size, trading partner choice, and experience. CONCLUSION: Public baseline FSMSs appear effective in controlling food safety hazards; however, this may not be viable due to the scarcity of public resources. We suggest public policies to focus on long-lasting governance mechanisms by introducing incentive schemes and farm-level FSMSs by providing loans and education to farmers. © 2016 Society of Chemical Industry.


Assuntos
Agricultura/legislação & jurisprudência , Abastecimento de Alimentos/legislação & jurisprudência , Agricultura/organização & administração , Agricultura/normas , Abastecimento de Alimentos/normas , Análise de Perigos e Pontos Críticos de Controle , Humanos , Líbano
12.
Rev. bras. ciênc. vet ; 22(1): 48-53, jan.-mar.2015. il.
Artigo em Português | LILACS | ID: biblio-1016104

RESUMO

Este trabalho teve a finalidade realizar um diagnóstico do manejo sanitário da produção e avaliar a qualidade microbiológica dos ovos caipiras produzidos por agricultores familiares fluminenses. Para o diagnóstico das propriedades foi utilizada uma lista de checagem baseada em 14 indicadores referentes ao manejo sanitário Protocolo de Boas Práticas de Produção (PBPPO) da União Brasileira de Avicultura. Para a avaliação da qualidade microbiológica, foram analisados 280 ovos de um dia após a postura coletados durante oito semanas, nas propriedades dos produtores familiares. Foram feitas contagem de mesófilos aeróbios viáveis, pesquisa de Salmonela sp. e detecção de coliformes totais e fecais. Nenhuma das propriedades apresentou 100% de conformidade em relação aos 14 indicadores do PBPPO. Para o total de indicadores estudados, verificou-se que o produtor B foi que apresentou a maior quantidade de indicadores em conformidade (57%), seguido dos produtores A, C e D que apresentaram 50% de conformidade, enquanto que o produtor E, apresentou apenas seis indicadores (43%) do total de 14 aplicados a produção caipira de ovos. Em todas as amostras estudadas foi verificado contagem total de aeróbios mesófilos viáveis de até 3,95 Log UFC.g-1 , ausência de Salmonela sp. e o resultado para o grupo dos coliformes foi <2 NMP. mL-1 . Apesar dos agricultores não aplicarem as Boas Práticas de Produção Agropecuárias na produção dos ovos caipiras, os resultados do presente trabalho indicaram que todas as amostras analisadas estavam adequadas para o consumo de acordo com a Legislação vigente. dade microbiológica.


This study aimed to establish a diagnosis of the health management of production and evaluate the microbiological quality of eggs produced by rednecks fluminense family farmers. For the diagnosis of the properties was used a checklist based on 14 indicators related to health Management Protocol Good Manufacturing Practices (GMEPP) of the Brazilian Poultry Union. To evaluate the microbiological quality, 280 eggs were analyzed one day after the collected posture for eight weeks, the properties of the family farmers. Were made count of viable aerobic mesophilic, Salmonella sp. research and detection of total and fecal coliforms. None of the properties had 100% compliance in relation to 14 GMEPP indicators. For all the indicators studied, it was found that the producer B was with the highest number of indicators accordingly (57%), followed by producers A, C and D that showed 50% compliance, while the producer and, had only six indicators (43%) of the total of 14 applied to rustic egg production. In all the studied samples was verified Total viable mesophilic aerobic count up to 3.95 log CFU g-1, the absence of Salmonella sp. and the result for the group of coliforms was <2 NMP. mL-1. Although farmers not applying the Good Agricultural Production Practices in the production of rednecks eggs, the results of this study indicated that all samples analyzed were suitable for consumption according to the current legislation.


Assuntos
Animais , Galinhas , Agricultura , Ovos , Diagnóstico
13.
Artigo em Coreano | WPRIM (Pacífico Ocidental) | ID: wpr-106442

RESUMO

The purpose of this study was to investigate the perception of the school dietitian on superior agricultural products (SAP) and the status of using superior agricultural products in school meals. Questionnaires were distributed to 185 school dietitians after face to face interview, and a total of 181 responses were used for analysis. 82.3% of the respondents were using SAPs in school meals and there was a significant difference between elementary school (95.1%), middle school (76.8%) and high school (66.7%) dietitians (p < 0.001). 85.2% of the dietitians, who were using SAP, were purchasing SAPs through electronic bidding, and the main reason of not using SAPs was the higher price of SAPs than that of general agricultural products. The good agricultural practices (GAP) product was considered the most appropriate agricultural products for school meals by the majority of respondents (66.9%), and organic products was the next (13.3%). In addition, the most important selection criterion for a SAP perceived by school dietitians was safety (58.0%), and the main reason of using SAPs in school meals, when two choices were allowed, was 'to provide healthful food to children' (98.9%). The major barriers to using SAPs in school meals (two choices were allowed) were 'too expensive' (73.5%) and 'unstable supply' (32.6). In conclusion, it was suggested that there should be an improvement in SAP supply and management systems to increase the use of SAPs in school meals.


Assuntos
Humanos , Inquéritos e Questionários , Eletrônica , Elétrons , Refeições
14.
Environ Exp Bot ; 71(2): 292-297, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32287506

RESUMO

Houttuynia cordata Thunb. is an edible herb with a variety of pharmacological activities, but only limited information is available about its response towards potassium supplementation. Sterile plantlets were cultured in media with different potassium levels, and parameters related to growth, foliar potassium, water and chlorophyll contents, photosynthesis, transpiration, H2O2 contents and antioxidative enzyme activities were determined after a month. Results showed that 1.28 mM potassium was the optimum for H. cordata as highest values of dry weight, shoot height, root length and number were obtained at this concentration. The optimum potassium concentration resulted in the maximum net photosynthetic rate which could be associated with the highest chlorophyll content rather than limited stomatal conductance. The supply of surplus potassium resulted in higher content of foliar potassium, but negatively correlated with the biomass. Both potassium starvation (0 mM) and high potassium (>1.28 mM) could lead to water loss through high transpiration rate and low water absorption, respectively, and resulted in H2O2 accumulation and increased activities of catalase and peroxidase, which suggested induction of oxidative stress. Moreover, H. cordata showed the minimum of H2O2 content and the maximum of superoxide dismutase activity on 1.28 mM potassium, implying its role in inducing tolerance against oxidative stress.

15.
Acta toxicol. argent ; 18(2): 40-53, jul.-dic. 2010. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-633173

RESUMO

El presente trabajo engloba todos los conocimientos actuales y disponibles técnico científicos con respecto a las aplicaciones de agroquímicos en proximidad a las zonas periurbanas y urbanas, considerando los diversos factores que contribuyen a un eficiente y eficaz trabajo agrícola, sugiriendo prácticas y estableciendo distancias a favor de la seguridad de la población y de las Buenas Prácticas Agrícolas. Concluyendo en un cuadro de sugerencias basado en la toxicidad aguda de los agroquímicos.


The present document includes the whole current and available scientific technical knowledge regarding to the agrochemical applications next to the rural-urban and urban zones, considering the several factors that contribute to an efficient and effective agricultural work, suggesting practices and establishing distances in favour of the population’s security and of the Good Agricultural Practices. Concluding in a picture of suggestions based on the acute toxicity of the agrochemicals.


Assuntos
Humanos , Animais , Produção Agrícola , Agroquímicos/efeitos adversos , Agroquímicos/toxicidade , Fumigação , Zona Rural , População Rural , Área Urbana
16.
China Pharmacy ; (12)2001.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-524885

RESUMO

OBJECTIVE:To predict the trend of Good Manufacturing Practice(G MP)certification in China after2004.METHODS:The development and the current situation of GMP certification were summarized,the problems as well as the suggestions were put forward.RESULTS&CONCLUSIONS:GMP certification after2004should be integrated with Inter?national Organization for Standardization(ISO),the domain correlated drug and"Good Agricultural Practices"(GAP),it should be design rational project of GMP certification on the basis of specificity of enterprises in China.

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