Vegetables Growing Articles
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Case study - Olive mill waste water treatment
The production of olive oil generates two kind of waste waters: RINSING WATERS: the quantity is subject to change. It can be re-circulated, after the settling to remove the solids, or discharged directly. SLUDGE: vegetation water with additional water, whose quantity is subject to change. In case of traditional oil mills, the hot additional water flows to the inlet of the centrifuge. Part of ...
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Food Processor
Problem: A major food processor and food supplier lo airline companies was out of compliance due to the failure of their wastewater treatment system to perform effectively in reducing the contaminants and meet discharge requirements. They needed to deal with their wastewater efficiently and cost-effectively, and ultimately achieve compliance with the authorities discharge standards. Solution: ...
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Changes in chlorophyll, anthocyanins and phenolic compounds concentration in fresh–cut onion
The minimal processing of onion is practical and convenient to consumers, eliminating the inconvenience of peeling, cutting, unwanted odour and tearing effect. The study aimed to estimate the levels of chlorophyll, anthocyanins and phenolic compounds in fresh–cut onions, triturated in the form. Onions, white and purple, obtained in Pombal–PB were conducted in the Laboratory of Food ...
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CA waste facility eliminates odor complaints for their organic green waste and sludge composting operation
The Problem - The large California facility takes in a great deal of green waste (grass clippings, vegetable & fruit waste, leaves and other vegetation) and food processing sludge. It is all combined and recycled into high grade mulch and compost in their site composting operation. The nature of the waste and the composting process leads to the release of high concentrations of odor - ...
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Quantitative risk assessment of acquiring listeriosis from consumption of minimally processed vegetables
Listeriosis is a serious invasive disease with high fatality rates especially among the vulnerable population. Although the causative pathogen had been detected in several foods in Malaysia, there have so far been no reported cases of listeriosis in Malaysia. The aim of this study was to carry out a quantitative risk assessment to estimate the risk of acquiring listeriosis through the consumption ...
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Obtention of plant peroxidase and its potential for the decolorization of the reactive dye Remazol Turquoise G 133%
Peroxidases can be used in the decolorization process. There is a growing interest for new sources of this enzyme and for obtaining economically viable processes. In this work, a low-cost vegetable peroxidase extraction process is proposed; the resulting enzyme is characterized to determine its optimum pH, temperature, and stability conditions, and it is then applied in the decolorization of ...
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Polyphenol oxidase activity and colour changes of peeled potato (cv. Monalisa) in vacuum
Minimal processing of vegetables has some undesirable physiological consequences. The shelf life of peeled raw potatoes is limited by the onset of enzymatic browning at the cut surfaces. It is generally accepted that polyphenol oxidase (PPO) is the enzyme mainly responsible for this type of browning. This work aimed to study the effect of vacuum storage at 4?C on the colour, which is the main ...
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Stud case study
A major vegetable grower in Lantokia, Fiji, using soilless culture systems began to trial Amnite A-100. His crops consisted principally of lettuce, tomatoes, capsicums, cucumbers, zucchinis and melons. Before the trials they had been plagued with root diseases, mosaic virus and insect attack, control of which required constant use of pesticides and ultraviolet lighting. The first trials ...
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Hielscher – Ultrasonic Transesterification of Oil to Biodiesel Improves Reaction Speed and Yield
Ultrasonication can improve the conversion processing of vegetable oils or animal fats to biodiesel by improved mixing and enhanced chemical activity. The manufacturing of biodiesel from oils (e.g. soy, canola, sunflower seed) or animal fats, involves the base-catalyzed transesterification of fatty acids with methanol to give the corresponding methyl esters. The conventional esterification ...
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An automated image analysis approach for classification and mapping of woody vegetation from digital aerial photograph
This paper presents a recent study on woody vegetation delineation and mapping using digital aerial photograph and geographic information system (GIS) in Hunter Region, Australia. The aim of the study was to develop automated and repeatable digital image processing methods for woody vegetation classification and mapping using aerial photograph or high-resolution satellite images and GIS. ...
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Environmental education using Nek Chand`s Rock Garden in the City of Chandigarh
The aim of this paper was to assess one of the pre-eminent examples of environmental success, Nek Chand's Rock Garden in the City of Chandigarh in India. Environmental education is multidisciplinary in nature with respect to learning and developing knowledge, awareness, attitudes, values and skills. This enables society to contribute more meaningfully to maintaining and improving the quality of ...
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Nucleoplasmatic index in meristematic cells of maize (Zea mays L.) as a tool in environmental bioindication
Test plants of maize (Zea mays L.) were exposed in pot experiments to air pollution at different locations in Slovenia for one vegetation period. Root tips were collected from the field after the period of four months. Digital image analysis was made, and a nucleoplasmatic index was calculated from the meristematic root tip cells of different test plants. Statistical evaluation of data ...
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Identification of eco-efficiency opportunities in a small enterprise producing vegetable oil in Eskisehir, Turkey
In this study, the current processes and technologies in a small enterprise, Demircanlar Oil Industry (Eskisehir, Turkey), were audited and improved from the eco-efficiency point of view. The eco-efficient management of the vegetable oil production processes has been performed on the units of physical processes, extraction and purification. The results obtained indicated that the loss in raw ...
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Experimental investigations to evaluate benefits of using compost amendments to modify expansive soils
Composting is a successful method of recycling organic waste materials such as yard trimmings, municipal biosolids, animal manure and organic urban wastes into stabilised materials that could be used for bioremediation, erosion control, landscaping, and roadside vegetation. The process of organic wastes composting is expanding rapidly in the USA and other countries since landfill spaces for ...
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Annual effective dose assessment for 226Ra and 228Ra due to consumption of foodstuffs by Tehran city residents
A total of 71 samples from 23 different foodstuffs, namely root vegetables (beetroot, carrot, onion, potato, radish and turnip), leafy vegetables (lettuce, parsley, spinach and white cabbage) and lentils, kidneys, soya, eggs, rice, meat, tomato paste, cooking oil, salami, tea, bread, sausage and cubic sugar, were purchased from markets and analysed by gamma spectrometry for their 226Ra and 228Ra ...
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Minimal models and agroecological policy at the regional scale: An application to salinity problems in southeastern Australia
A minimal dynamical systems model that couples agricultural activity, native vegetation, and hydrological processes is developed to explore policy options regarding regional-scale soil and water salinization in southeastern Australia. The analysis suggests that although considerable revegetation is required to restore catchment water balance, the current value of water in uses other than ...
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Elemental composition of Jamaican foods 1: A survey of five food crop categories
The concentrations of 27 elements in Jamaican food categories consisting of fruit, legumes, leafy and root vegetables and other root crops are reported. The main analytical techniques used were neutron activation analysis and flame and graphite furnace atomic absorption spectrophotometry. The results are compared, where possible, with values from Denmark, the United Kingdom, the United States and ...
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Hydroponic cultivation of lettuce (Lactuca sativa) using effluents from primary, secondary and tertiary + UV treatments
ABSTRACTThe aim of this study was to evaluate the potential cultivation of lettuce (Lactuca sativa) with domestic wastewater effluents with different levels of treatment from a compact WWTP in Brazil. Vegetables were grown in five treatments: nutrient solution (control), secondary effluent diluted 50%, secondary effluent not diluted, tertiary effluent UV irradiated, and UASB effluent. ...
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Multiscale control of vegetation patterns: the case of Doñana (SW Spain)
The early studies about the plant ecology of Doñana carried out at a small scale showed that the main process controlling vegetation composition of the stabilized dunes was soil water availability. However, the extrapolation of this model to larger spatial scales failed to explain observed vegetation patterns. In this work, the vegetation patterns and the processes causing them are studied at a ...
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Research Analysis of the Market Potential For Lower Grade Composted Materials in the UK
Executive Summary 1. Description This report presents the findings of research undertaken by WRc, under contract to the Waste andResources Action Programme (WRAP). The research analysed the market potential for low grade composted materials in the UK, taking the risks associated with their use in different applications into account. It also assessed the viability of introducing standards for ...
By WRC Ltd
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