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https://www.readbyqxmd.com/read/28822285/conversion-of-raw-and-untreated-disposal-into-ethanol
#1
Saurabh Sudha Dhiman, Aditi David, Namita Shrestha, Glenn R Johnson, Kenneth M Benjamin, Venkataramana Gadhamshetty, Rajesh K Sani
The one-pot CRUDE (Conversion of Raw and Untreated Disposal into Ethanol) process was developed for simultaneous hydrolysis and fermentation of unprocessed food waste into ethanol using thermophilic (growing at 65°C) anaerobic bacteria. Unlike existing waste to energy technologies, the CRUDE process obviates the need for any pre-treatment or enzyme addition. A High-Temperature-High-Pressure (HTHP) distillation technique was also applied that facilitated efficient use of fermentation medium, inoculum recycling, and in-situ ethanol collection...
July 21, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28818397/life-cycle-inventory-and-mass-balance-of-municipal-food-waste-management-systems-decision-support-methods-beyond-the-waste-hierarchy
#2
Joel Edwards, Maazuza Othman, Enda Crossin, Stewart Burn
When assessing the environmental and human health impact of a municipal food waste (FW) management system waste managers typically rely on the principles of the waste hierarchy; using metrics such as the mass or rate of waste that is 'prepared for recycling,' 'recovered for energy,' or 'sent to landfill.' These metrics measure the collection and sorting efficiency of a waste system but are incapable of determining the efficiency of a system to turn waste into a valuable resource. In this study a life cycle approach was employed using a system boundary that includes the entire waste service provision from collection to safe end-use or disposal...
August 14, 2017: Waste Management
https://www.readbyqxmd.com/read/28815433/new-insights-on-the-green-synthesis-of-metallic-nanoparticles-using-plant-and-waste-biomaterials-current-knowledge-their-agricultural-and-environmental-applications
#3
Rijuta Ganesh Saratale, Ganesh Dattatraya Saratale, Han Seung Shin, Jaya Mary Jacob, Arivalagan Pugazhendhi, Mukesh Bhaisare, Gopalakrishanan Kumar
Nanotechnology is a rapidly growing scientific field and has attracted a great interest over the last few years because of its abundant applications. Green nanotechnology is a multidisciplinary field that has emerged as a rapidly developing research area, serving as an important technique that emphasize on making the procedure which are clean, non-hazardous, and especially environmentally friendly, in contrast with chemical and physical methods currently employed for nanosynthesis. The biogenic routes could be termed green as these do not involve the use of highly toxic chemicals or elevated energy inputs during the synthesis...
August 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28810215/continuous-operation-of-thermophilic-food-waste-digestion-with-side-stream-ammonia-stripping
#4
Wei Zhang, Sonia Heaven, Charles J Banks
Digesters fed on food waste (high nitrogen content) were operated successfully over an extended period using sidestream biogas stripping to control total ammonia nitrogen (TAN) below inhibitory concentrations. This is the first time biogas stripping has been used to achieve stable thermophilic operation with undiluted substrate of this type. Stripping columns operated batch-wise treated the equivalent of 1.7-4.1% of digester contents daily at pH >10 and 70°C, with no detrimental effect on digestion. TKN removal was 54%, with potential to recover 3...
August 3, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28810152/driving-forces-and-impacts-of-food-system-nitrogen-flows-in-china-1990-to-2012
#5
Bing Gao, Yunfeng Huang, Wei Huang, Yalan Shi, Xuemei Bai, Shenghui Cui
Food nitrogen (N), which includes animal-food (AN) and plant-food N (PN), has been driven by population growth (PG), dietary changes associated with income growth (DC) and rural-urban migration (M) over the past three decades, and these changes combined with their N cost, have caused some effect on N use in China's food system. Although there is an increasing literature on food N and its environmental impacts in China, the relative magnitude of these driving forces are not well understood. Here we first quantify the differences in per capita AN and PN consumption in urban and rural areas and their impacts on N input to the food system during 1990-2012, and then quantify the relative contributions of DC, PG and M in the overall N change during this period...
August 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28807638/food-waste-in-the-national-school-lunch-program-1978-2015-a-systematic-review
#6
Carmen Byker Shanks, Jinan Banna, Elena L Serrano
BACKGROUND: Food waste studies have been used for more than 40 years to assess nutrient intake, dietary quality, menu performance, food acceptability, cost, and effectiveness of nutrition education in the National School Lunch Program (NSLP). OBJECTIVE: Describe methods used to measure food waste and respective results in the NSLP across time. METHODS: A systematic review using PubMed, Science Direct, Informaworld, and Institute of Scientific Information Web of Knowledge was conducted using the following search terms: waste, school lunch, plate waste, food waste, kitchen, half method, quarter method, weight, and photography...
August 11, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28807555/improving-biogas-production-from-anaerobic-co-digestion-of-sewage-sludge-with-a-thermal-dried-mixture-of-food-waste-cheese-whey-and-olive-mill-wastewater
#7
A E Maragkaki, I Vasileiadis, M Fountoulakis, A Kyriakou, K Lasaridi, T Manios
Anaerobic co-digestion of sewage sludge and other organic wastes at a wastewater treatment plant (WWTP) is a promising method for both energy and material recovery. However, transportation and storage of wastes to WWTP may be the bottleneck for the successful implementation of this technology. In case of wet wastes and wastewater it is possible to reduce their volume and as a result the transportation and storage cost by using a drying process. During this study, the optimization of biogas production from sewage sludge (SS) was attempted by co-digesting with a dried mixture of food waste, cheese whey and olive mill wastewater (FCO)...
August 11, 2017: Waste Management
https://www.readbyqxmd.com/read/28803764/effect-of-a-food-waste-disposer-policy-on-solid-waste-and-wastewater-management-with-economic-implications-of-environmental-externalities
#8
Amani Maalouf, Mutasem El-Fadel
In this study, the carbon footprint of introducing a food waste disposer (FWD) policy was examined in the context of its implications on solid waste and wastewater management with economic assessment of environmental externalities emphasizing potential carbon credit and increased sludge generation. For this purpose, a model adopting a life cycle inventory approach was developed to integrate solid waste and wastewater management processes under a single framework and test scenarios for a waste with high organic food content typical of developing economies...
August 10, 2017: Waste Management
https://www.readbyqxmd.com/read/28803071/responses-of-szarvasi-1-energy-grass-to-sewage-sludge-treatments-in-hydroponics
#9
Ambrus Rév, Brigitta Tóth, Ádám Solti, Gyula Sipos, Ferenc Fodor
Sewage sludge (SS) originating from communal wastewater is a hazardous material but have a potentially great nutritive value. Its disposal after treatment in agricultural lands can be a very economical and safe way of utilization once fast growing, high biomass, perennial plants of renewable energy production are cultivated. Szarvasi-1 energy grass (Elymus elongatus subsp. ponticus cv. Szarvasi-1), a good candidate for this application, was grown in hydroponics in order to assess its metal accumulation and tolerance under increasing SS amendments...
August 1, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28802131/food-contamination-by-pcbs-and-waste-disposal-crisis-evidence-from-goat-milk-in-campania-italy
#10
M C Ferrante, G Fusco, A Monnolo, F Saggiomo, J Guccione, R Mercogliano, M T Clausi
AIM: The study aims at investigating whether, and if so, to what extent the strong presence of urban and industrial waste in a territory may cause PCB contamination in goat milk produced therein. METHODS: We compared PCB concentrations in goat milk from three different locations in the Campania region (Italy). One of the three locations, together with its surrounding area, has long suffered from illegal waste disposal and burning mainly by the so-called Ecomafia...
July 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/28802130/trends-in-the-recovery-of-phosphorus-in-bioavailable-forms-from-wastewater
#11
REVIEW
Patrick M Melia, Andrew B Cundy, Saran P Sohi, Peter S Hooda, Rosa Busquets
Addressing food security issues arising from phosphorus (P) scarcity is described as one of the greatest global challenges of the 21st Century. Dependence on inorganic phosphate fertilisers derived from limited geological sources of P creates an urgent need to recover P from wastes and treated waters, in safe forms that are also effective agriculturally - the established process of P removal by chemical precipitation using Fe or Al salts, is effective for P removal but leads to residues with limited bioavailability and contamination concerns...
July 25, 2017: Chemosphere
https://www.readbyqxmd.com/read/28799899/the-gut-microbiota-food-science-and-human-nutrition-a-timely-marriage
#12
REVIEW
Michael J Barratt, Carlito Lebrilla, Howard-Yana Shapiro, Jeffrey I Gordon
Analytic advances are enabling more precise definitions of the molecular composition of key food staples incorporated into contemporary diets and how the nutrient landscapes of these staples vary as a function of cultivar and food processing methods. This knowledge, combined with insights about the interrelationship between consumer microbiota configurations and biotransformation of food ingredients, should have a number of effects on agriculture, food production, and strategies for improving the nutritional value of foods and health status...
August 9, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28799642/olive-tree-olea-europaea-l-leaf-as-a-waste-by-product-of-table-olive-and-olive-oil-industry-a-review
#13
REVIEW
Selin Şahin, Mehmet Bilgin
Researches into finding new uses for by-products of table olive and olive oil industry are of great value not only to the economy, but also to the environment where olives are grown and to the human health. Since leaves represent around 10% of the total weight of olives arriving to the mill, it is worth obtaining high added-value compounds from those materials for the preparation of dietary supplements, nutraceuticals, functional food ingredients or cosmeceuticals. In this review article, olive tree (Olea europaea L...
August 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28799050/environmental-building-policy-by-the-use-of-microalgae-and-decreasing-of-risks-for-canadian-oil-sand-sector-development
#14
Armen B Avagyan
Environmental building recommendations aimed towards new environmental policies and management-changing decisions which as example demonstrated in consideration of the problems of Canadian oil sands operators. For the implementation of the circular economic strategy, we use an in-depth analysis of reported environmental after-consequence on all stages of the production process. The study addressed the promotion of innovative solutions for greenhouse gas emission, waste mitigation, and risk of falling in oil prices for operators of oil sands with creating market opportunities...
August 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28796830/dynamic-changes-of-nutrient-composition-throughout-the-entire-life-cycle-of-black-soldier-fly
#15
Xiu Liu, Xuan Chen, Hui Wang, Qinqin Yang, Kashif Ur Rehman, Wu Li, Minmin Cai, Qing Li, Lorenzo Mazza, Jibin Zhang, Ziniu Yu, Longyu Zheng
Black soldier fly (BSF) larvae, Hermetia illucens L., develops on organic wastes, reducing ecological pollution and converting waste biomass into protein and fat rich insect biomass. BSF can replace increasingly expensive protein sources used in poultry, aquaculture and livestock compound diet formulation, such as fish meal and soybean meal, which holds the potential to alleviate future food and feed insecurity. The fate of nutritional spectra in BSF during its life cycle phases is still poorly understood. This study assessed metabolic changes in nutrition composition of BSF from egg to adult...
2017: PloS One
https://www.readbyqxmd.com/read/28796573/development-of-exon-skipping-therapies-for-duchenne-muscular-dystrophy-a-critical-review-and-a-perspective-on-the-outstanding-issues
#16
Annemieke Aartsma-Rus, Volker Straub, Robert Hemmings, Manuel Haas, Gabriele Schlosser-Weber, Violeta Stoyanova-Beninska, Eugenio Mercuri, Francesco Muntoni, Bruno Sepodes, Elizabeth Vroom, Pavel Balabanov
Duchenne muscular dystrophy (DMD) is a rare, severe, progressive muscle-wasting disease leading to disability and premature death. Patients lack the muscle membrane-stabilizing protein dystrophin. Antisense oligonucleotide (AON)-mediated exon skipping is a therapeutic approach that aims to induce production of partially functional dystrophins. Recently, an AON targeting exon 51 became the first of its class to be approved by the United States regulators [Food and Drug Administration (FDA)] for the treatment of DMD...
August 10, 2017: Nucleic Acid Therapeutics
https://www.readbyqxmd.com/read/28794923/a-sustainable-use-of-low-cost-raw-substrates-for-biodiesel-production-by-the-oleaginous-yeast-wickerhamomyces-anomalus
#17
Fatma Arous, Imen Ben Atitallah, Moncef Nasri, Tahar Mechichi
Over the past decade, the increasing demand of vegetable oils for biodiesel production has highlighted the need for alternative oil feedstocks that do not compete with food production. In this context, the combined use of agro-industrial wastes and oleaginous microorganisms could be a promising strategy for sustainable biodiesel production. The present investigation involves the performance of the oleaginous yeast Wickerhamomyces anomalus strain EC28 to produce lipids from different agro-industrial wastewaters (i...
August 2017: 3 Biotech
https://www.readbyqxmd.com/read/28783779/effects-of-lime-and-organic-amendments-derived-from-varied-source-materials-on-cadmium-uptake-by-potato
#18
Shamim Al Mamun, Niklas J Lehto, Jo Cavanagh, Richard McDowell, Munmun Aktar, Ebrahim Benyas, Brett H Robinson
Repeated applications of Cd-rich phosphate fertilizers have resulted in elevated concentrations of this toxic element in some New Zealand soils. Exceedance of the food safety standard for Cd (0.1 mg kg fresh weight) has been reported for potato ( L.). Composts may efficiently sorb Cd in soil and therefore reduce its phytoavailability, leading to reduced uptake by plants. We aimed to determine the potential of various composts, shredded corn stover, and lime at two different rates to reduce the transfer of Cd from a soil (containing 1...
July 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28782080/awareness-of-stomach-and-colorectal-cancer-risk-factors-symptoms-and-time-taken-to-seek-medical-help-among-public-attending-primary-care-setting-in-muscat-governorate-oman
#19
Mohammed Al-Azri, Jamila Al-Kindi, Thuraiya Al-Harthi, Manal Al-Dahri, Sathiya Murthi Panchatcharam, Abdullah Al-Maniri
Colorectal and stomach cancers are the top ranking cancers in Oman. Most of the patients are diagnosed at advanced disease stages. The aim of this study is to explore the knowledge of risk factors, symptoms and the time needed to seek medical care for stomach cancer and colorectal cancer (CRC) among Omani participants attending 28 local health centres (LHCs) in the governorate of Muscat, the capital city of Oman. The Bowel Cancer/CRC Awareness Measure (CAM) questionnaire (translated into Arabic) was used to collect data from Omani adult participants (aged 18 years and above) who attended the LHCs during the study period...
August 7, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28779951/microbial-characteristics-in-anaerobic-digestion-process-of-food-waste-for-methane-production-a-review
#20
REVIEW
Pan Wang, Hongtao Wang, Yinquan Qiu, Lianhai Ren, Bin Jiang
Food waste (FW) is rich in starch, fat, protein and cellulose. It is easy to decay and brings environmental pollution and other social problems. FW shows a high potential to produce methane by anaerobic digestion (AD) due to its high organic content. However, many inhibitors, such as accumulation of ammonia and volatile fatty acids (VFAs), usually result in inefficient performances and even process failure. Microorganisms play an important role in the process of hydrolysis, acidogenesis, acetogenesis and methanogenesis...
June 29, 2017: Bioresource Technology
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