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https://www.readbyqxmd.com/read/28724255/effects-of-organic-composition-on-the-anaerobic-biodegradability-of-food-waste
#1
Yangyang Li, Yiying Jin, Aiduan Borrion, Hailong Li, Jinhui Li
This work investigated the influence of carbohydrates, proteins and lipids on the anaerobic digestion of food waste (FW) and the relationship between the parameters characterising digestion. Increasing the concentrations of proteins and lipids, and decreasing carbohydrate content in FW, led to high buffering capacity, reduction of proteins (52.7-65.0%) and lipids (57.4-88.2%), and methane production (385-627 mLCH4/g volatile solid), while achieving a short retention time. There were no significant correlations between the reduction of organics, hydrolysis rate constant (0...
July 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28724089/grower-analysis-of-organic-matter-amendments-in-california-orchards
#2
Sat Darshan S Khalsa, Patrick H Brown
Organic matter amendments supply crop nutrients and enhance soil health, yet information specific to orchards is lacking. A survey was conducted to analyze use of these materials by California almond [ (Mill.) D.A. Webb] growers. Significant differences were observed for benefits, concerns, and accessibility to manure and green waste sources and between users and nonusers. Use patterns were significantly influenced by heavy and light users, farm size, and geographic region. Enhanced soil biology was the main benefit attributed to organic matter amendments by both users and nonusers...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28720962/minimally-processed-beetroot-waste-as-an-alternative-source-to-obtain-functional-ingredients
#3
Anne Porto Dalla Costa, Vanessa Stahl Hermes, Alessandro de Oliveira Rios, Simone Hickmann Flôres
Large amounts of waste are generated by the minimally processed vegetables industry, such as those from beetroot processing. The aim of this study was to determine the best method to obtain flour from minimally processed beetroot waste dried at different temperatures, besides producing a colorant from such waste and assessing its stability along 45 days. Beetroot waste dried at 70 °C originates flour with significant antioxidant activity and higher betalain content than flour produced from waste dried at 60 and 80 °C, while chlorination had no impact on the process since microbiological results were consistent for its application...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28720957/bioactive-compounds-and-antioxidant-activity-in-scalded-jalape%C3%A3-o-pepper-industrial-byproduct-capsicum-annuum
#4
Claudia Jaqueline Sandoval-Castro, Maribel Valdez-Morales, B Dave Oomah, Roberto Gutiérrez-Dorado, Sergio Medina-Godoy, L Gabriela Espinosa-Alonso
Bioactive compounds and antioxidant activity were evaluated from industrial Jalapeño pepper byproducts and simulated non processed byproducts from two Mexican states (Chihuahua and Sinaloa) to determine their value added potential as commercial food ingredients. Aqueous 80% ethanol produced about 13% of dry extract of polar compounds. Total phenolic content increased and capsaicin and dihydrocapsaicin decreased on scalding samples (80 °C, 2 min) without affecting ascorbic acid. The major phenolic compounds, rutin, epicatechin and catechin comprised 90% of the total compounds detected by HPLC of each Jalapeño pepper byproducts...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28720947/reduction-of-whey-protein-concentrate-antigenicity-by-using-a-combined-enzymatic-digestion-and-ultrafiltration-approach
#5
Laura Quintieri, Linda Monaci, Federico Baruzzi, Maria Gabriella Giuffrida, Silvia de Candia, Leonardo Caputo
The global interest in saving food resources is leading to recycle wasted-food materials to extract useful nutrients. In dairy industry, the recycling of whey proteins determines their utilization in the healthy-addressed foods, which, however, can cause immunological responses in allergic subjects. In this work, a whey protein concentrate (WPC) was alternatively hydrolyzed with pepsin, papain, trypsin and rennin in order to attenuate or abolish the β-lactoglobulin (BLG) antigenicity. The electrophoretic profiles of both pepsin and papain WPC hydrolysates proved the disappearance of the BLG band, even though a slight antigenicity was still found by ELISA...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28720277/effect-of-feeding-mode-and-dilution-on-the-performance-and-microbial-community-population-in-anaerobic-digestion-of-food-waste
#6
Jong-Hun Park, Gopalakrishnan Kumar, Yeo-Myeong Yun, Joong-Chun Kwon, Sang-Hyoun Kim
The effect of feeding mode and dilution was studied in anaerobic digestion of food waste. An upflow anaerobic digester with a settler was fed at six different organic loading rates (OLRs) from 4.6 to 8.6kgCOD/m(3)/d for 200days. The highest methane productivity of 2.78LCH4/L/d was achieved at 8.6kgCOD/m(3)/d during continuous feeding of diluted FW. Continuous feeding of diluted food waste showed more stable and efficient performance than stepwise feeding of undiluted food waste. Sharp increase in propionate concentration attributed towards deterioration of the digester performances in stepwise feeding of undiluted food waste...
July 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28719840/environmental-and-human-health-challenges-of-industrial-livestock-and-poultry-farming-in-china-and-their-mitigation
#7
REVIEW
Yuanan Hu, Hefa Cheng, Shu Tao
Driven by the growing demand for food products of animal origin, industrial livestock and poultry production has become increasingly popular and is on the track of becoming an important source of environmental pollution in China. Although concentrated animal feeding operations (CAFOs) have higher production efficiency and profitability with less resource consumption compared to the traditional family-based and "free range" farming, they bring significant environmental pollution concerns and pose public health risks...
July 15, 2017: Environment International
https://www.readbyqxmd.com/read/28718017/occurrence-and-transformations-of-carbon-nitrogen-and-phosphorus-related-to-particle-size-fraction-of-sweet-potato-starch-wastewater-during-hydrolytic-acidification-processes
#8
Haixiao Zhu, Long Qin, Yue Hu, Dongyang Wei, Zibin Hai, Aimin Li, Xianchuan Xie, Chao Han
Sweet potato starch wastewater (SPSW) is an industrial food-processing waste product, which is a significant pollution source due to its high chemical oxygen demand (COD), nitrogen, and phosphorus loads. The influence of hydrolytic acidification (HA) process on C, N, and P as well as other main parameters were evaluated. It is essential to treat these wastewaters with effective methods such as HA, a general pretreatment application. In this study, we investigate the scientific link between the changes of different fractions of C, N, and P with particle size distribution in response to the newly introduced HA process...
July 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28715926/microencapsulation-of-anthocyanin-rich-black-soybean-coat-extract-by-spray-drying-using-maltodextrin-gum-arabic-and-skimmed-milk-powder
#9
Ana Kalušević, Steva Lević, Bojan Čalija, Milena Pantić, Miona Belović, Vladimir Pavlović, Branko Bugarski, Jela Milić, Slađana Žilić, Viktor Nedović
Black soybean coat is insufficiently valorised food production waste rich in anthocyanins. The goal of the study was to examine physicochemical properties of spray dried extract of black soybean coat in regard to carrier materials: maltodextrin, gum Arabic, and skimmed milk powder. Maltodextrin and gum Arabic-based microparticles were spherical and non-porous while skimmed milk powder-based were irregularly shaped. Low water activity of microparticles (0.31-033), good powders characteristics, high solubility (80...
July 18, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28711296/anaerobic-digestion-of-food-waste-a-review-focusing-on-process-stability
#10
REVIEW
Lei Li, Xuya Peng, Xiaoming Wang, Di Wu
Food waste (FW) is rich in biomass energy, and increasing numbers of national programs are being established to recover energy from FW using anaerobic digestion (AD). However process instability is a common operational issue for AD of FW. Process monitoring and control as well as microbial management can be used to control instability and increase the energy conversion efficiency of anaerobic digesters. Here, we review research progress related to these methods and identify existing limitations to efficient AD; recommendations for future research are also discussed...
July 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28709882/biodegradation-of-food-waste-using-microbial-cultures-producing-thermostable-%C3%AE-amylase-and-cellulase-under-different-ph-and-temperature
#11
Mukesh Kumar Awasthi, Jonathan W C Wong, Sunil Kumar, Sanjeev Kumar Awasthi, Quan Wang, Meijing Wang, Xiuna Ren, Junchao Zhao, Hongyu Chen, Zengqiang Zhang
The aim of this work was to study the biodegradation of food waste employing thermostable α-amylase and cellulase enzymes producing bacteria. Four potential isolates were identified which were capable of producing maximum amylase and cellulase and belong to the amylolytic strains, Brevibacillus borstelensis and Bacillus licheniformis; cellulolytic strains, Bacillus thuringiensis and Bacillus licheniformis, respectively. These strains were selected based on its higher cell density, enzymatic activities and stability at a wide range of pH and temperature compared to other strains...
June 30, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28708669/the-role-of-hypothalamic-inflammation-the-hypothalamic-pituitary-adrenal-axis-and-serotonin-in-the-cancer-anorexia-cachexia-syndrome
#12
Klaske van Norren, Jvalini T Dwarkasing, Renger F Witkamp
PURPOSE OF REVIEW: In cancer patients, the development of cachexia (muscle wasting) is frequently aggravated by anorexia (loss of appetite). Their concurrence is often referred to as anorexia-cachexia syndrome. This review focusses on the recent evidence underlining hypothalamic inflammation as key driver of these processes. Special attention is given to the involvement of hypothalamic serotonin. RECENT FINDINGS: The anorexia-cachexia syndrome is directly associated with higher mortality in cancer patients...
July 13, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/28698629/detecting-the-presence-of-fish-farm-derived-organic-matter-at-the-seafloor-using-stable-isotope-analysis-of-phospholipid-fatty-acids
#13
Daniel J Mayor, Nia B Gray, Giannina S I Hattich, Barry Thornton
The expansion of global aquaculture activities is important for the wellbeing of future generations in terms of employment and food security. Rearing animals in open-exchange cages permits the release of organic wastes, some of which ultimately reaches the underlying sediments. The development of rapid, quantitative and objective monitoring techniques is therefore central to the environmentally sustainable growth of the aquaculture industry. Here, we demonstrate that fish farm-derived organic wastes can be readily detected at the seafloor by quantifying sediment phospholipid fatty acids (PLFAs) and their carbon stable isotope signatures...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698479/antifungal-microbial-agents-for-food-biopreservation-a-review
#14
REVIEW
Marcia Leyva Salas, Jérôme Mounier, Florence Valence, Monika Coton, Anne Thierry, Emmanuel Coton
Food spoilage is a major issue for the food industry, leading to food waste, substantial economic losses for manufacturers and consumers, and a negative impact on brand names. Among causes, fungal contamination can be encountered at various stages of the food chain (e.g., post-harvest, during processing or storage). Fungal development leads to food sensory defects varying from visual deterioration to noticeable odor, flavor, or texture changes but can also have negative health impacts via mycotoxin production by some molds...
July 8, 2017: Microorganisms
https://www.readbyqxmd.com/read/28697976/anaerobic-bioconversion-of-food-waste-into-energy-a-critical-review
#15
REVIEW
Camilla M Braguglia, Agata Gallipoli, Andrea Gianico, Pamela Pagliaccia
No abstract text is available yet for this article.
June 28, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28697456/hydrothermal-carbonization-of-typical-components-of-municipal-solid-waste-for-deriving-hydrochars-and-their-combustion-behavior
#16
Yousheng Lin, Xiaoqian Ma, Xiaowei Peng, Zhaosheng Yu
In this work, five typical components were employed as representative pseudo-components to indirectly complete previous established simulation system during hydrothermal carbonization (HTC) of municipal solid waste. The fuel characteristics and combustion behavior of HTC-derived hydrochars were evaluated. Results clearly illustrated that the energy ranks of hydrochars were upgraded after HTC. For paper and wood, superior combustion performances of their hydrochars could achieve under suitable conditions. While for food, none positive enrichments on combustion loss rate were observed for hydrochars due to its high solubilization and decomposition under hot compressed water...
June 23, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28693950/enhanced-volatile-fatty-acids-production-from-anaerobic-fermentation-of-food-waste-a-mini-review-focusing-on-acidogenic-metabolic-pathways
#17
REVIEW
Miaomiao Zhou, Binghua Yan, Jonathan W C Wong, Yang Zhang
Recently, efficient disposal of food waste (FW) with potential resource recovery has attracted great attentions. Due to its easily biodegradable nature, rich nutrient availability and high moisture content, FW is regarded as favorable substrate for anaerobic digestion (AD). Both waste disposal and energy recovery can be fulfilled during AD of FW. Volatile fatty acids (VFAs) which are the products of the first-two stages of AD, are widely applied in chemical industry as platform chemicals recently. Concentration and distribution of VFAs is the result of acidogenic metabolic pathways, which can be affected by the micro-environment (e...
June 26, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28693949/composting-of-food-wastes-status-and-challenges
#18
REVIEW
Alejandra Cerda, Adriana Artola, Xavier Font, Raquel Barrena, Teresa Gea, Antoni Sánchez
This review analyses the main challenges of the process of food waste composting and examines the crucial aspects related to the quality of the produced compost. Although recent advances have been made in crucial aspects of the process, such composting microbiology, improvements are needed in process monitoring. Therefore, specific problems related to food waste composting, such as the presence of impurities, are thoroughly analysed in this study. In addition, environmental impacts related to food waste composting, such as emissions of greenhouse gases and odours, are discussed...
June 26, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28693674/the-imperative-for-regenerative-agriculture
#19
Christopher J Rhodes
A review is made of the current state of agriculture, emphasising issues of soil erosion and dependence on fossil fuels, in regard to achieving food security for a relentlessly enlarging global population. Soil has been described as "the fragile, living skin of the Earth", and yet both its aliveness and fragility have all too often been ignored in the expansion of agriculture across the face of the globe. Since it is a pivotal component in a global nexus of soil-water-air-energy, how we treat the soil can impact massively on climate change - with either beneficial or detrimental consequences, depending on whether the soil is preserved or degraded...
March 1, 2017: Science Progress
https://www.readbyqxmd.com/read/28691173/successes-and-challenges-in-school-meal-reform-qualitative-insights-from-food-service-directors
#20
Yuka Asada, Margaret Ziemann, Lara Zatz, Jamie Chriqui
BACKGROUND: The Healthy, Hunger-Free Kids Act of 2010 (HHFKA) directed the US Department of Agriculture (USDA) to revise school meal standards to increase healthy food offerings. A critical stakeholder in the implementation of standards is Food Service Directors (FSDs). We sought to examine FSDs' perspectives on revised school meal standards to gain insight into successful implementation strategies. METHODS: Semistructured interviews were conducted with FSDs (N = 9) from high schools that had achieved HealthierUS Schools Challenge: Smarter Lunchrooms (HUSSC: SL) status...
August 2017: Journal of School Health
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