Development of Low-Cost Natural Cooling Chamber for Preservation of Vegetables and Fruits in Rural Area

2020 ◽  
Vol 07 (03) ◽  
pp. 16-25
Author(s):  
Shubham Kulkarni ◽  
Keyword(s):  
Rural Area ◽  
Low Cost ◽  
Cooling Chamber ◽  
Vegetables And Fruits

Low-cost far-field wireless electrical load monitoring system applied in an off-grid rural area of Tanzania

2020 ◽  
Vol 59 ◽  
pp. 102209
Author(s):  
Xinlin Wang ◽  
Bora Ha ◽  
Gil-Yong Lee ◽  
Hyungjung Kim ◽  
Jongha Yu ◽  
...  
Keyword(s):  
Rural Area ◽  
Monitoring System ◽  
Low Cost ◽  
Far Field ◽  
Electrical Load ◽  
Load Monitoring

Feasibility Study of a Low Cost Saltwater Lamp for Rural Area

2018 ◽  
Vol 10 (7) ◽  
Author(s):  
Nurul Aini Bani ◽  
◽  
Mohamad Zaki Hassan ◽  
Hazilah Mad Kaidi ◽  
Mohd Nabil Muhtazaruddin ◽  
...  
Keyword(s):  
Rural Area ◽  
Feasibility Study ◽  
Low Cost

Application of a simple arsenic removal filter in a rural area of Bangladesh

2012 ◽  
Vol 12 (5) ◽  
pp. 658-665 ◽  
Author(s):  
Md Mahmudul Hasan ◽  
Md Shafiquzzaman ◽  
Jun Nakajima ◽  
Quazi Hamidul Bari
Keyword(s):  
Rural Area ◽  
Arsenic Removal ◽  
Low Cost ◽  
Ceramic Filter ◽  
Manufacturing Cost ◽  
X Ray ◽  
Sustained Use ◽  
Actual Field ◽  
Contamination Levels ◽  
X Ray Absorption

A simple and low-cost household-based arsenic (As) removal filter (ARF) was tested under actual field conditions in a rural area of Bangladesh. The ARF consisted of a ceramic filter made of clay soil and rice bran collected on-site, iron netting and iron bacterial sludge liquor. Fifteen ARFs (14 shallow and one deep tubewells) were installed in three villages (five in each area) in the Khulna region (southwestern region of Bangladesh), and their performance was evaluated. More than 60% of ARFs produced effluent with As <50 μg/L (Bangladesh standard level). The effects of Fe and P on As removal were the same as in laboratory experiments. X-ray Absorption Fine Structure (XAFS) analysis showed the adsorption of primarily As(V), with lesser amounts of As(III). Continuous As removal performance was observed over 1 year of ARF use. By introducing a double ARF system, the As removal was significantly enhanced for the region with high As contamination levels. The ARF manufacturing cost was estimated to be US$4–5, which is low and affordable to the rural households of Bangladesh. The ARF, made of locally available materials, had a low cost and minimal maintenance and showed high user acceptance, satisfaction and sustained use.

Design and development of a low cost solar energy system for the rural area

2013 ◽  
Author(s):  
A. Al-Mamun ◽  
K. Sundaraj ◽  
N. Ahmed ◽  
N. U. Ahamed ◽  
S.A.M. M. Rahman ◽  
...  
Keyword(s):  
Solar Energy ◽  
Rural Area ◽  
Low Cost ◽  
Energy System ◽  
Design And Development

scholarly journals Evaluation of the consumption and contamination level of Vegetables and Fruits in Ethiopia

2020 ◽  
Author(s):  
Firehiwot Abera Derra ◽  
Tesfaye Bedada ◽  
Redwan Edichio ◽  
Samson Gabre ◽  
Waktola Gobena ◽  
...  
Keyword(s):  
Public Health ◽  
Heart Diseases ◽  
Low Cost ◽  
Total Coliform ◽  
Plate Count ◽  
Contamination Level ◽  
Animal Products ◽  
Household Level ◽  
Main Food Source ◽  
Vegetables And Fruits

Abstract Background; Vegetables and Fruits have got major acceptance in the modern scientific world nowadays and advisable to use more per daily food consumption. Although these food products have got more acceptances, their preparation and sanitation before consumption at the household level have to get proper attention. Objective: The objective was to assess the microbial load of vegetables and fruits which had been submitted at the Public health microbiology laboratory of Ethiopian Public Health Institute, from the year 2008- 2017, ( 10 years Retrospective data).Methods: Samples were tested for the presence of Mold, Yeast, Mesophilic aerobic bacteria, Total coliform, Thermo-tolerant coliform and the Indicator E.coli, to determine the contamination level based on the NMKL protocol. For viable bacteria count, APHA protocol was applied. Result: One hundred ninety-five 5.9% (195/ 3279) raw and processed products had been received per ten years. Of these, 15% (29/195) of the samples revealed an intolerable microbial quality of the mesophilic aerobic plate count, followed by total coliforms 7.7% (15/195), thermo-tolerant coliforms 10.8 % (21/ 195), E.coli 3 % (6/ 195), mold count 1.5% (3/195) and yeast count 1.5% (3/195) (ICMSF protocol). Discussion and Conclusion: Although vegetables and fruits are currently proved to be the best healthy foods worldwide and are available with the low cost relatively, in the developing countries like Ethiopia, their consumption rate is overwhelmed by cereals and animal products based on the live status of the community. Therefore, joint efforts have to be exerted by different branches of MOH for encouraging the community to use vegetables and fruits as its main food source for better health and to reduce nasty illnesses like diabetes, obesity, heart diseases and so on. However, while doing so, series health education has to be provided on sanitation procedures like immediate cooking or disinfection before consumption to prevent the community from environmental risks.

scholarly journals Evaluation of the Cadmium Accumulation in Tamarillo Cells (Solanum betaceum) by Indirect Electrochemical Detection of Cysteine-Rich Peptides

Molecules ◽  
2019 ◽  
Vol 24 (12) ◽  
pp. 2196
Author(s):  
Marjorie Montero-Jiménez ◽  
Lenys Fernández ◽  
José Alvarado ◽  
Mauricio Criollo ◽  
Mónica Jadán ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Low Cost ◽  
Cadmium Accumulation ◽  
Native Plant ◽  
Cadmium Intake ◽  
High Concentrations ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Vegetables And Fruits ◽  
Solanum Betaceum

Long-term cadmium intake can be very dangerous to human health due to its toxic effects. Although people can be contaminated with this element from different sources, contaminated food is probably the most important one. Foods such as vegetables and fruits can become contaminated with cadmium existing in soils, irrigation water, or chemical fertilizers. Some plants produce an excess of cysteine-rich peptides (CRp) when affected by high concentrations of heavy metals such as cadmium, thus indicating the presence of this type of contamination. Among these plants is tamarillo (Solanum betaceum), which is locally known as “tree tomato”. This is a native plant widely consumed in the Ecuadorian Andes because of its abundance, low cost, and high content of vitamin C and fiber. The fact that Solanum betaceum produces CRp upon contamination with heavy metals means that this plant may be able to accumulate heavy metals. If this is the case, the plant can possibly be used as an indicator of metal pollution. The main goals of the present work were to evaluate the possibility of using Solanum betaceum as an indicator of metal contamination in plants and to examine its capability to accumulate metals. Both goals were met by determination of the amounts of CRp produced by Solanum betaceum cells cultivated in vitro in the laboratory under controlled conditions in the presence of different concentrations of cadmium. The CRp determination was carried out by means of electrogeneration of iodine in an iodide solution containing reduced glutathione as a biological thiol model. Solanum betaceum cells were grown in a Murashige and Skoog solution enriched with a 30 g L−1 sugar aqueous solution and 1 mg L−1 2,4-dichlorophenoxyacetic acid. The results of these experiments confirmed the following: (1) CRp production is a function of the amount of cadmium present as a contaminant up to a limiting value after which cell apoptosis occurs; (2) Solanum betaceum accumulates cadmium; (3) the analytical method used is appropriate for CRp determination; and (4) CRp determination is a valid alternative to detect contamination by heavy metals in plants.

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