Aprovechamiento de frutas y hortalizas de temporada de la Región de Tabasco, mediante la deshidratación del producto, utilizando una estufa solar

2019 ◽  
pp. 35-40
Author(s):  
Sara María De Jesús Magaña-Barrera ◽  
Blanca López-Salazar ◽  
Ulda Palma-López ◽  
Héctor Daniel Hidalgo-Leal
Keyword(s):  
Solar Energy ◽  
Heat Supply ◽  
Fruits And Vegetables ◽  
Agricultural Products ◽  
Added Value ◽  
Solar Drying ◽  
Good Source ◽  
Heating Method ◽  
Experimental Process ◽  
Fruit Preservation

Drying has been the most widely used fruit preservation process for many years. Food dehydration is a process in which heat transfer and mass transfer take place. The main objective of this research is to share the results obtained in the process of dehydration of seasonal fruits and vegetables of the Tabasco region through a dynamic model using a solar stove, through a controllable indirect heating method, which stabilizes the temperature of dehydration, so that there are no alterations in color and flavor of the fruit. The results in the dehydration of seasonal fruits (mango and cambola) are presented in adequate and homogeneous proportions, distributing each piece in the solar stove, exposed to solar energy for three days. A description of the solar drying used, the instrumentation used and the experimental process that was carried out in each of the tests is briefly shown. Solar energy is used as a good source of heat supply for the dehydration of agricultural products and the use of the solar stove gives another alternative to the use of this renewable and sustainable energy, which is available in Tabasco for drying food products, with the purpose of preserving and giving added value to the fruits of this region

scholarly journals Occurrence of Chemical Contaminants in Peruvian Produce: A Food-Safety Perspective

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1461
Author(s):  
Oscar A. Galagarza ◽  
Alejandra Ramirez-Hernandez ◽  
Haley F. Oliver ◽  
Mariel V. Álvarez Rodríguez ◽  
María del Carmen Valdez Ortiz ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Food Safety ◽  
Fruits And Vegetables ◽  
Safety Issue ◽  
Agricultural Products ◽  
Mining Activities ◽  
Farming Practices ◽  
Chemical Contaminants ◽  
Crop Varieties ◽  
Andean Country

The presence of chemical contaminants in agricultural products is a continued food-safety challenge in Peru. This country has robust agriculture potential, but its output of fruits and vegetables is severely impacted by massive mining activities, as well as poor farming practices, including the use of polluted irrigation water, misuse of pesticides, and inadequate postharvest conditions. This review examines the current scientific knowledge on the levels of pesticide residues, heavy metals, and mycotoxins on crops produced in Peru. The available data shows that several crop varieties are contaminated with these classes of chemical contaminants, and at levels that exceed the national and international permissible limits. The abundance of chemical contaminants in produce indicates a relevant food-safety issue, which increases the risks of chronic human diseases, like cancer—a leading cause of death in Peru. Finally, this review presents recommendations to address these contamination problems in produce grown in the Andean country.

RENEWABLE ENERGY INTEGRATION FOR HOT WATER SUPPLY AND HEATING OF BUILDINGS

2021 ◽  
pp. 3-12
Author(s):  
Yu. Selikhov ◽  
K. Gorbunov ◽  
V. Stasov
Keyword(s):  
Solar Energy ◽  
Heat Production ◽  
Heat Supply ◽  
Alternative Energy ◽  
Fossil Fuel ◽  
Heat Pumps ◽  
Climatic Conditions ◽  
Economic Feasibility ◽  
Hot Water ◽  
The Cost

Solar energy is widely used in solar systems, where economy and ecology are combined. Namely, this represents an important moment in the era of depletion of energy resources. The use of solar energy is a promising economical item for all countries of the world, meeting their interests also in terms of energy independence, thanks to which it is confidently gaining a stable position in the global energy sector. The cost of heat obtained through the use of solar installations largely depends on the radiation and climatic conditions of the area where the solar installation is used. The climatic conditions of our country, especially the south, make it possible to use the energy of the Sun to cover a significant part of the need for heat. A decrease in the reserves of fossil fuel and its rise in price have led to the development of optimal technical solutions, efficiency and economic feasibility of using solar installations. And today this is no longer an idle curiosity, but a conscious desire of homeowners to save not only their financial budget, but also health, which is possible only with the use of alternative energy sources, such as: double-circuit solar installations, geothermal heat pumps (HP), wind power generators. The problem is especially acute in the heat supply of housing and communal services (HCS), where the cost of fuel for heat production is several times higher than the cost of electricity. The main disadvantages of centralized heat supply sources are low energy, economic and environmental efficiency. And high transport tariffs for the delivery of energy carriers and frequent accidents on heating mains exacerbate the negative factors inherent in traditional district heating. One of the most effective energy-saving methods that make it possible to save fossil fuel, reduce environmental pollution, and meet the needs of consumers in process heat is the use of heat pump technologies for heat production.

PENERAPAN ANALISIS GEROMBOL DAN BIPLOT (STUDI KASUS: HASIL PERTANIAN DAERAH TERTINGGAL DI PROVINSI PAPUA BARAT)

2018 ◽  
Vol 14 (1) ◽  
pp. 45-50
Author(s):  
Indah Ratih Anggriyani ◽  
Dariani Matualage ◽  
Esther Ria Matulessy
Keyword(s):  
Relative Position ◽  
Fruits And Vegetables ◽  
Agricultural Products ◽  
Agricultural Product ◽  
Regional Characteristics ◽  
Biplot Analysis ◽  
West Papua ◽  
Agricultural Potential ◽  
Papua Barat ◽  
Different Characteristics

One of the potential of the seven districts underdeveloped areas in West Papua Province is agriculture. In order to develop agricultural potential, an overview of agricultural products is needed including the similarity of regional characteristics and the relative position of the region. The similarity of regional characteristics to agricultural product can be known by cluster analysis. The relative posistion of the area with agricultural  results is known by biplot analysis. Bintuni Bay Regency, South Sorong Regency, Tambrauw Regency and Maybrat Regency have the same characteristics in producing agriculture while Teluk Wondama Regency, Sorong Regency and Raja Ampat Regency have different characteristics. The relative position of agricultural products with the regency is Sorong Regency producing the highest number of food crops while the largest producer of horticulture fruits and vegetables are Teluk Wondama Regency and Raja Ampat Regency.

scholarly journals Solar Drying Technology in Indonesia: an Overview

2018 ◽  
Vol 9 (4) ◽  
pp. 1804 ◽  
Author(s):  
Ahmad Fudholi ◽  
Abrar Ridwan ◽  
Rado Yendra ◽  
Ari Pani Desvina ◽  
Hartono Hartono ◽  
...  
Keyword(s):  
Solar Energy ◽  
Large Scale ◽  
Clean Energy ◽  
Solar Drying ◽  
Energy Technology ◽  
Important Benefit ◽  
Pollutant Source ◽  
Drying Technology

<span lang="EN-US">The most important benefit of solar energy is renewable and low pollutant source of energy (clean energy). Solar energy technology and research are developing fast and much of the technology needed for these applications in industry and agricultures is already available. Solar drying technology (SDT) is one of the most attractive and promising applications of solar energy technology. In this paper, the various performances of SDTs in Indonesia are summarized with details. Generally, the cabinet-type and tunnel-type SDTs are remarkably well suited to drying small quantities of vegetables and fruit on the household scale. Greenhouse and hybrid SDTs are suitable for use on a large scale by industries.</span>

scholarly journals Structural and regional features of the development of Russia’s agri-food exports

2021 ◽  
Vol 7 (3) ◽  
pp. 116-132
Author(s):  
M. D. Goryachko ◽  
N. S. Leonenko
Keyword(s):  
Foreign Trade ◽  
Regional Differences ◽  
Raw Materials ◽  
Regional Distribution ◽  
Food Products ◽  
Agricultural Products ◽  
Added Value ◽  
Investment Activity ◽  
Regional Features ◽  
Balassa Index

The recent interest in the topic of agri-food exports is caused by investment activity in agriculture after 2014 and, as a consequence, the positive dynamics of the main indicators of the industry's development. Russia’s food exports has grown more than 15 times since the early 2000s, and the dozens of countries around the world buy this food. At the same time, there are structural and regional features that indicate the limited results achieved in foreign trade, but Russia’s agri-food exports are growing only at the expense of three categories of goods (grain, vegetable oil and fish) with a lower added value than by top-processed food products. It is noted that despite the large number of importing countries, only a few of them purchase significant volumes of Russia’s food. The aim of the study is to quantify the regional differences in the involvement of the territory in the export of food and agricultural raw materials. The assessment showed that most of the Russia’s regions are poorly involved in foreign trade, therefore more than half of all food exports belong to several regions that have a large seaport and produce one of the three main food products. Based on the assessment results, a typology of Russia’s regions is presented according to the criterion of involvement in Russia’s export of agricultural products, taking into account the characteristics of exported products (upper, middle or lower processing). The results obtained make it possible to assess the real export activity of the agroindustrial sector of the regions and the potential for its increase in the future. To calculate the dynamics and regional distribution of Russia’s food exports we used the database of the Federal Customs Service of Russia (HS codes 01-24). In the article, we also calculated the Balassa index and the export diversification index, modified for analyzing the involvement of Russia’s regions in the export of agricultural products.

Recent developments in solar drying technology of food and agricultural products: A review

2022 ◽  
Vol 157 ◽  
pp. 112070
Author(s):  
Hany S. EL-Mesery ◽  
Ahmed I. EL-Seesy ◽  
Zicheng Hu ◽  
Yang Li
Keyword(s):  
Agricultural Products ◽  
Solar Drying ◽  
Recent Developments ◽  
Drying Technology

scholarly journals Carrots (Daucus carota L.) Biofortified with Iodine and Selenium as a Raw Material for the Production of Juice with Additional Nutritional Functions

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1360
Author(s):  
Łukasz Skoczylas ◽  
Małgorzata Tabaszewska ◽  
Sylwester Smoleń ◽  
Jacek Słupski ◽  
Marta Liszka-Skoczylas ◽  
...  
Keyword(s):  
Dry Matter ◽  
Antioxidative Activity ◽  
Polyphenolic Compounds ◽  
Raw Material ◽  
Added Value ◽  
Soluble Solids ◽  
Good Source ◽  
Daucus Carota L ◽  
The World ◽  
Β Carotene

Many people around the world struggle with the problem of an insufficient supply of iodine (I) and selenium (SE) in their diet. Food enriched with these elements is a good source of iodine and selenium. Juices made from four carrot (CJ) cultivars and biofortified with iodine and selenium (BCJs) were investigated to determine their I and Se contents, their impact on the supply of these elements to the diet, and losses in the production process. Other juice parameters important for consumers health were also determined. A significant increase in I and Se content relative to CJ was observed for each BCJ. The losses of I and Se (relative to raw material) during juice preparation were depended based on variety and added elements. Carrot biofertilization with iodine and selenium contributed to decreased contents of dry matter, total soluble solids, protein, sugars, and β-carotene in the juices and lower antioxidative activity as compared with CJ. Biofortification had little effect on the color and pH of juices. Finally, six polyphenolic compounds were identified and determined. Despite the reduction in the content of some ingredients in BCJ, they still remain their valuable source. Their added value is the increased content of iodine and selenium, which largely cover the daily demand for these elementals.

scholarly journals Dielektrické vlastnosti zemědělských produktů a některé jejich aplikace

2008 ◽  
Vol 54 (No. 2) ◽  
pp. 104-112 ◽  
Author(s):  
S.O Nelson
Keyword(s):  
Dielectric Properties ◽  
Moisture Content ◽  
Radio Frequency ◽  
Fruits And Vegetables ◽  
Agricultural Products ◽  
Dielectric Heating ◽  
Quality Factors ◽  
Poultry Products ◽  
Microwave Dielectric ◽  
Microwave Dielectric Heating

The use of dielectric properties of agricultural products for sensing moisture in grain and seed and their application in radio-frequency and microwave dielectric heating is discussed briefly. Values for the dielectric properties of a number of products, including grain and seed, fruits and vegetables, and poultry products, are presented graphically to show the dependence of these properties on frequency, moisture content, and temperature. The potential for using the dielectric properties to sense quality factors other than moisture content is also considered.

Price of Basic Food Basket in Brazil and the World (2003-2017): Causes and Consequences

2019 ◽  
pp. 1-10
Author(s):  
Nayane Jaqueline Costa Maia ◽  
Gabriela De Almeida Mourão ◽  
Thiago De Andrade Águas ◽  
Jeferson Alves Martins ◽  
Larisse Medeiros Gonçalves ◽  
...  
Keyword(s):  
Linear Regression ◽  
Fruits And Vegetables ◽  
Linear Regression Analysis ◽  
Food Prices ◽  
Added Value ◽  
Governmental Organizations ◽  
Non Governmental Organizations ◽  
The World ◽  
High Investment ◽  
Food Basket

Aims: Objective this work is to understand the price dynamics of foods basket products in Brazil and the world, based on multivariate analysis, for 14 years, with data from governmental and non-governmental organizations. Methodology: Data used for world food prices were taken from official documents provided by governmental and non-governmental organizations. The data were submitted to statistical analysis by Microsoft Excel 2016® and Minitab 16®. The statistical model used in the work is multiple linear regression. When significant linear regression was found, the parameters were compared by means of simple linear regression analysis, a significance of 5% probability (P<0.05) was considered. Results: The results showed that the items that most cost the foods basket in the world are meat, fruits, and vegetables, and it was noticed that with each increase of 1 dollar in the price of these products, increased 2 dollars in the price food basket. And in Brazil it would not be different, these same products represented an increase in the price of the basic food basket in more than 300% (adding meat) and 110,67% (adding fruits and vegetables). Conclusion: Concluding that the increase of the basic food basket in Brazil and in the World is directly correlated with meat, fruits, and vegetables. Being an added value caused by the high cost of investment in these sectors, which require very high investment.

Sign in / Sign up

Export Citation Format

Share Document