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https://read.qxmd.com/read/30776553/environmental-sustainability-of-anaerobic-digestion-of-household-food-waste
#1
Peter C Slorach, Harish K Jeswani, Rosa Cuéllar-Franca, Adisa Azapagic
Consumers are the leading producers of food waste (FW) in developed countries and the majority of household FW is still embedded in general waste where it is incinerated or landfilled. There is increasing awareness in the value of collecting FW as a separate waste stream for production of compost or recovery of energy through anaerobic digestion (AD). This study focuses on AD to evaluate the life cycle environmental sustainability of recovering energy and fertilisers from household FW in the UK. The analysis is carried out for two different functional units: i) treatment of 1 tonne of FW, which is compared to incineration and landfilling; and ii) generation of 1 MWh of electricity, which is compared to other electricity generation options...
February 15, 2019: Journal of Environmental Management
https://read.qxmd.com/read/30775790/characterization-of-volatile-profiles-of-six-popular-edible-mushrooms-using-headspace-solid-phase-microextraction-coupled-with-gas-chromatography-combined-with-chemometric-analysis
#2
Mun Yhung Jung, Da Eun Lee, Hong Yu Cheng, Il-Min Chung, Seung-Hyun Kim, Jae-Gu Han, Won-Sik Kong
The classification of six mushroom species (white beech, brown beech, button, oyster, king oyster, and enoki mushrooms) was successfully achieved using canonical discriminant analysis (CDA) on volatile metabolite data sets obtained by headspace-solid-phase microextraction gas chromatography (HS-SPME-GC). Twenty-seven major volatile compounds in six edible mushrooms were positively identified by HS-SPME-GC mass spectroscopy. The total volatile content was highest in brown beech mushroom (P < 0.05). Significant difference in volatile profile was observed between brown beach and white beech mushrooms...
February 18, 2019: Journal of Food Science
https://read.qxmd.com/read/30775789/polydimethylsiloxane-replicas-efficacy-for-simulating-fresh-produce-surfaces-and-application-in-mechanistic-study-of-colloid-retention
#3
Taozhu Sun, Volha Lazouskaya, Yan Jin
Foodborne illnesses associated with fresh produce have attracted increasing attention in the food industry, scientific and public health communities. Studies have shown that surface properties of fresh produce can affect bacterial attachment and colonization, yet the mechanisms involved remain poorly understood. In our previous work, using colloids as bacterial surrogates, we demonstrated that colloid retention on fresh produce was controlled by water retention/distribution on produce surfaces, which were in turn governed by produce surface properties...
February 18, 2019: Journal of Food Science
https://read.qxmd.com/read/30775740/one-step-sensing-of-foodborne-pathogenic-bacteria-using-a-3d-paper-based-device
#4
Hyeok Jung Kim, Chanho Kwon, Byung Sub Lee, Hyeran Noh
Managing food contamination from bacteria has been an ongoing issue in the public health and industrial fields. Enzymatic substrates possessing optical properties, e.g. fluorescence or color manifestation, are widely exploited in pathogenic/non-pathogenic bacteria culture methods. Recently, various chromogenic substrates have been utilized in the development of point-of-care diagnostic tools. Herein, four types of chromogenic substrates were exploited to develop paper-based sensors for major foodborne pathogens...
February 18, 2019: Analyst
https://read.qxmd.com/read/30775167/potential-ecotoxicological-effects-of-antimicrobial-surface-coatings-a-literature-survey-backed-up-by-analysis-of-market-reports
#5
Merilin Rosenberg, Krunoslav Ilić, Katre Juganson, Angela Ivask, Merja Ahonen, Ivana Vinković Vrček, Anne Kahru
This review was initiated by the COST action CA15114 AMICI "Anti-Microbial Coating Innovations to prevent infectious diseases," where one important aspect is to analyze ecotoxicological impacts of antimicrobial coatings (AMCs) to ensure their sustainable use. Scopus database was used to collect scientific literature on the types and uses of AMCs, while market reports were used to collect data on production volumes. Special attention was paid on data obtained for the release of the most prevalent ingredients of AMCs into the aqueous phase that was used as the proxy for their possible ecotoxicological effects...
2019: PeerJ
https://read.qxmd.com/read/30773941/monosodium-glutamate-daily-oral-supplementation-study-of-its-effects-on-male-reproductive-system-on-rat-model
#6
Fatin Farhana Jubaidi, Ramya Dewi Mathialagan, Mahanem Mat Noor, Izatus Shima Taib, Siti Balkis Budin
Monosodium glutamate (MSG) is widely used in food preparation industry and has been consumed regularly. Previous studies had reported on effects of MSG when given at extremely high dosages, the results are not applicable to human equivalent intake. Therefore, the present study aimed to evaluate the effect of MSG on sperm quality and changes in reproductive organs of adult male rats when taken at average human daily intake (ADI). Twenty-four adult male rats were randomly assigned into three groups; NC (Normal control), MSG60 and MSG120 where MSG was given orally at 60 mg/kg and 120 mg/kg to each respective group...
February 17, 2019: Systems Biology in Reproductive Medicine
https://read.qxmd.com/read/30773586/diets-enriched-with-conventional-or-high-oleic-acid-canola-oils-lower-atherogenic-lipids-and-lipoproteins-compared-to-a-diet-with-a-western-fatty-acid-profile-in-adults-with-central-adiposity
#7
Kate J Bowen, Penny M Kris-Etherton, Sheila G West, Jennifer A Fleming, Philip W Connelly, Benoît Lamarche, Patrick Couture, David J A Jenkins, Carla G Taylor, Peter Zahradka, Shatha S Hammad, Jyoti Sihag, Xiang Chen, Valérie Guay, Julie Maltais-Giguère, Danielle Perera, Angela Wilson, Sandra Castillo San Juan, Julia Rempel, Peter J H Jones
BACKGROUND: Novel oils high in monounsaturated fatty acids (MUFAs) and low in saturated fatty acids (SFAs) are an alternative to partially hydrogenated oils high in trans-unsaturated fatty acids. There is widespread use of high-MUFA oils across the food industry; however, limited knowledge of their cardiovascular impact exists. OBJECTIVES: We investigated the effects of diets containing canola oil, high-oleic acid canola oil (HOCO), and a control oil blend (diet formulated to emulate a Western fat profile) on lipids, lipoproteins, and apolipoproteins (apos), as secondary outcomes of the trial...
February 15, 2019: Journal of Nutrition
https://read.qxmd.com/read/30772846/industrially-produced-trans-fat-in-popular-foods-in-15-countries-of-the-former-soviet-union-from-2015-to-2016-a-market-basket-investigation
#8
Steen Stender
OBJECTIVE: To minimise the intake of industrially produced trans fat (I-TF) and decrease the risk of coronary heart disease, several countries have implemented a legislative restriction on I-TF in foods. The objective of this study was to investigate the presence of I-TF in biscuits/cakes/wafers in 15 countries of the former Soviet Union that all have a high coronary mortality rate compared with countries in Western Europe. METHODS: Three large supermarkets in 15 capitals were visited in 2015 or 2016...
February 15, 2019: BMJ Open
https://read.qxmd.com/read/30772805/chemical-components-of-the-volatile-oil-from-leaves-of-cananga-odorata-and-its-anti-oxidant-activity
#9
Chenxing Zhao, Baocai Li, Dan Liu, Weifeng Dai, Lang Cao, Mi Zhang
Cananga odorata (Lamk.) Hook. f. et Thoms., belonging to Annonaceae, is an evergreen tree. The oils extracted from its flower are a famous perfume and used in daily chemical and food industry. Although this plant has been widely cultivated in tropical regions of the world, the yield of oils from its flower is very limited. In order to develop the other parts of this plant, the chemical constituents of the volatile oils from the leaves of C. odorata was analyzed by gas chromatography/flame ionization detector (GC-FID) and GC/mass spectrometry (GC-MS)...
January 2019: Pakistan Journal of Pharmaceutical Sciences
https://read.qxmd.com/read/30772730/treatments-for-color-removal-from-wastewater-state-of-the-art
#10
REVIEW
Maria Cristina Collivignarelli, Alessandro Abbà, Marco Carnevale Miino, Silvestro Damiani
It is evident from many recent papers that release of colored wastewater into the environment is source of pollution and this is a problem that particularly affect textile, dyeing and food industries. The review: (i) presents an analysis of various mechanisms involved in the different processes for color removal; (ii) describes conveniences and disadvantages that may exist in adopting one type of treatment in spite of another; (iii) reports the results of approximately 180 experimental tests. Both examples of treatments already widely applied to the real scale and still in the experimental phase are reported...
February 14, 2019: Journal of Environmental Management
https://read.qxmd.com/read/30772709/the-occurrence-potential-toxicity-and-toxicity-mechanism-of-bisphenol-s-a-substitute-of-bisphenol-a-a-critical-review-of-recent-progress
#11
Wenhui Qiu, Hongyan Zhan, Jiaqi Hu, Ting Zhang, Hai Xu, Minghung Wong, Bentuo Xu, Chunmiao Zheng
Bisphenol S (BPS) has been introduced into the industry as a safer alternative to bisphenol A (BPA). The distribution of BPS has recently become an important issue worldwide, but investigations on the toxicity and mechanisms of BPS remain limited. A review of the literature reveals that BPS has widespread presence in environmental media, such as indoor dust, surface water, sediments, and sewage sludge. It has been detected in plants, paper products, some food items, and even in the human body. In addition, compared to BPA, BPS has a lower acute toxicity, similar or less endocrine disruption, similar neurotoxicity and immunotoxicity, and lower reproductive and developmental toxicity...
February 14, 2019: Ecotoxicology and Environmental Safety
https://read.qxmd.com/read/30772637/development-of-sugarcane-resource-for-efficient-fermentation-of-exopolysaccharide-by-using-a-novel-strain-of-kosakonia-cowanii-lt-1
#12
Liying Wang, Lingtian Wu, Qiaoyu Chen, Sha Li, Yibo Zhu, Jinnan Wu, Jianlin Chu, Shanshan Wu
This work focuses on the development of non-food fermentation for the cost-effective biosynthesis of exopolysaccharide (EPS) by using a new strain of Kosakonia cowanii LT-1. This novel strain more efficiently utilizes sucrose for EPS production than other glycosyl donors. Comparative transcriptomic analysis is used to understand EPS synthesis promotion and the effects of sucrose on EPS biosynthesis. We speculate that ATP-binding cassette transporter, phosphotransferase, and two-component systems may be the most essential factors for EPS biosynthesis...
February 11, 2019: Bioresource Technology
https://read.qxmd.com/read/30771940/a-simple-and-rapid-colorimetric-bacteria-detection-method-based-on-bacterial-inhibition-of-glucose-oxidase-catalyzed-reaction
#13
Jiahui Sun, Jia Huang, Yulong Li, Junwei Lv, Xianting Ding
Rapid and sensitive detection of live bacteria is crucial in the realm of clinical diagnosis, food industry and environmental quality control. A portable, feasible and cost-effective platform which enables rapid and accurate live bacteria detection is still challenging. Herein, we present a Bacterial Inhibition of GOX-catalyzed Reaction (BIGR) method for rapid and broad-spectrum detection of live bacteria, which results in a visible color change without any complex instrumentations. We validated this strategy with five common clinical bacteria, namely Escherichia coli, Staphylococcus aureus, Enterococcus faecalis, Streptococcus mutans and Salmonella pullorum...
May 15, 2019: Talanta
https://read.qxmd.com/read/30771717/graphene-based-electrochemical-biosensors-for-monitoring-noncommunicable-disease-biomarkers
#14
REVIEW
S Taniselass, M K Md Arshad, Subash C B Gopinath
Graphene is a 2-dimensional nanomaterial with an atomic thickness has attracted a strong scientific interest owing to their remarkable optical, electronic, thermal, mechanical and electrochemical properties. Graphene-based materials particularly graphene oxide and reduced graphene oxide are widely utilized in various applications ranging from food industry, environmental monitoring and biomedical fields as well as in the development of various types of biosensing devices. The richness in oxygen functional groups in the materials serves as a catalysis for the development of biosensors/electrochemical biosensors which promotes for an attachment of biological recognition elements, surface functionalization and compatible with micro- and nano- bio-environment...
January 29, 2019: Biosensors & Bioelectronics
https://read.qxmd.com/read/30771441/efficient-biosynthesis-of-3-4-dihydroxyphenylacetic-acid-in-escherichia-coli
#15
Xianglai Li, Xiaolin Shen, Jia Wang, Hyon Il Ri, Chang Yong Mi, Yajun Yan, Xinxiao Sun, Qipeng Yuan
3, 4-Dihydroxyphenylacetic acid (3, 4-DHPA) is a phenolic acid with strong anti-oxidative activity, showing potential applications in food and pharmaceutical industries. In this study, a 3, 4-DHPA biosynthetic pathway was designed by connecting 4-hydroxyphenylacetic acid (4-HPA) biosynthesis with its hydroxylation. The starting strain produced only 46 mg/L of 4-HPA in 48 h. Enhancing the shikimate pathway increased the titer by 19-fold to 923 ± 57 mg/L. Furthermore, pykA and pykF were disrupted to conserve phosphoenolpyruvate for 4-HPA production...
February 13, 2019: Journal of Biotechnology
https://read.qxmd.com/read/30771397/structural-characterization-and-immunomodulating-activities-of-polysaccharides-from-a-newly-collected-wild-morchella-sextelata
#16
Xin Meng, Chengchuan Che, Junming Zhang, Zhijin Gong, Meiru Si, Ge Yang, Li Cao, Jinfeng Liu
A purified polysaccharide was acquired from a newly collected wild Morchella. The strain identification initially showed that the strain was Morchella sextelata. This study aimed to investigate the structural features and immunomodulating activities of the polysaccharide. Polysaccharide extracted from mycelia was purified by DEAE-cellulose chromatography and Sephadex G-25 size-exclusion chromatography in sequence. The main fraction of polysaccharide (MSP-II) was obtained during purification process. High Performance Liquid Chromatography (HPLC) analysis revealed that MSP-II was composed of Glc, Ara, Gal, Man, Rha, Fuc, GalUA and GluUA in ratio of 34...
February 13, 2019: International Journal of Biological Macromolecules
https://read.qxmd.com/read/30769879/setting-policy-priorities-for-front-of-pack-health-claims-and-symbols-in-the-european-union-expert-consensus-built-by-using-a-delphi-method
#17
Yung Hung, Sophie Hieke, Klaus G Grunert, Wim Verbeke
Despite the fact that front-of-pack nutrition labels such as health claims and symbols have received growing attention in consumer behavior research, comprehensive conclusions could not yet be drawn to develop concrete policy actions, owing to the complexity of the subject and a constantly changing market environment. In this study, evidence-based policy recommendations and communication guidelines have been derived from the findings of the EU FP7 project CLYMBOL ("Role of health-related CLaims and sYMBOLs in consumer behavior", Grant Agreement 311963), and have been evaluated and prioritized by European stakeholders using a three-round Delphi method...
February 14, 2019: Nutrients
https://read.qxmd.com/read/30769185/geospatial-analyses-of-adverse-birth-outcomes-in-southwestern-ontario-examining-the-impact-of-environmental-factors
#18
Jamie A Seabrook, Alexandra Smith, Andrew F Clark, Jason A Gilliland
BACKGROUND: A growing body of research has examined the association between exposure to environmental factors during pregnancy and adverse birth outcomes; however, many studies do not control for potential covariates and findings vary considerably. OBJECTIVE: To test the relative influence of environmental factors including exposure to air pollution, major roads, highways, industry, parks, greenspaces, and food retailers on low birth weight (LBW) and preterm birth (PTB) in Southwestern Ontario (SWO), Canada, while accounting for medical (e...
December 31, 2018: Environmental Research
https://read.qxmd.com/read/30769043/development-of-metal-hydroxide-nanoparticles-from-eggshell-waste-and-seawater-and-their-application-as-flame-retardants-for-ethylene-vinyl-acetate-copolymer-eva
#19
Mohamed Amine Oualha, Nabil Omri, Rafeh Oualha, Mohamed Anouar Nouioui, Manef Abderrabba, Noureddine Amdouni, Fouad Laoutid
Recently, calcium hydroxide and magnesium hydroxide nanoparticles have attracted a lot of research interest in different sectors: food, packaging, health, automotive construction and food application. In the present study, we report development of bio-material calcium hydroxide nanoparticles (Ceg-Ca(OH)2 ), obtained from chicken eggshell collected from the food industries as well as magnesium hydroxide nanoparticles obtained from seawater (Seaw-Mg(OH)2 ). The flame-retardant behavior of Ethylene-Vinyl Acetate copolymer (EVA) containing different blends of Ceg-Ca(OH)2 and Seaw-Mg(OH)2 nanoparticles has been evaluated using cone calorimeter...
February 12, 2019: International Journal of Biological Macromolecules
https://read.qxmd.com/read/30767531/physical-and-antioxidant-properties-of-edible-chitosan-ascorbate-films
#20
Wenqiang Tan, Fang Dong, Jingjing Zhang, Xiang Zhao, Qing Li, Zhanyong Guo
Chitosan ascorbates with different substitution degrees were synthesized based on salification of chitosan and ascorbic acid at various molar ratios in water and were successfully used to prepare antioxidative films by casting for the first time. FTIR and 1H NMR spectra recorded the structural characteristics of all chitosan ascorbates, meanwhile physicochemical property and antioxidant activity of the produced chitosan ascorbate films were characterized and chitosan acetate film served as control were also measured these properties for comparison...
February 15, 2019: Journal of Agricultural and Food Chemistry
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