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https://www.readbyqxmd.com/read/30120889/biosurfactants-from-probiotic-bacteria-a-review
#1
REVIEW
Hamidreza Hajfarajollah, Parisa Eslami, Babak Mokhtarani, Kambiz Akbari Noghabi
Among microorganisms, bacteria are the main group of biosurfactant-producing organisms. Different types of bacteria including Pseudomonas sp., Acinetobacter sp., Bacillus sp. and Arthrobacter sp. are among the most commonly studied bacteria in the realm of scientific researches. However, due to the pathogenic nature of the producing organisms, the application of these compounds is restricted, therefore, not suitable for using in food-related industries. Given that probiotic bacteria impact human health, applying probiotics as non-pathogenic and safe organisms have gained much attention for the production of biosurfactants in recent years...
August 18, 2018: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/30117204/liquorice-glycyrrhiza-glabra-a-phytochemical-and-pharmacological-review
#2
REVIEW
Giulia Pastorino, Laura Cornara, Sónia Soares, Francisca Rodrigues, M Beatriz P P Oliveira
In the last years, consumers are paying much more attention to natural medicines and principles, mainly due to the general sense that natural compounds are safe. On the other hand, there is a growing demand by industry for plants used in traditional medicine that could be incorporated in foods, nutraceuticals, cosmetics, or even pharmaceuticals. Glycyrrhiza glabra Linn. belongs to the Fabaceae family and has been recognized since ancient times for its ethnopharmacological values. This plant contains different phytocompounds, such as glycyrrhizin, 18β-glycyrrhetinic acid, glabrin A and B, and isoflavones, that have demonstrated various pharmacological activities...
August 17, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/30117202/fluorographene-and-graphane-as-an-excellent-platform-for-enzyme-biocatalysis
#3
Soňa Hermanová, Daniel Bouša, Vlastimil Mazánek, David Sedmidubský, Jan Plutnar, Martin Pumera, Zdenek Sofer
The application of enzymes is a crucial issue for current biotechnological application in pharmaceutical as well as food and cosmetic industry. Effective platforms for enzyme immobilization are necessary for their industrial use in various biosynthesis procedures. Such platforms must provide high yield of immobilization as well as retain high activity at various conditions for their large scale applications. Graphene derivatives like hydrogenated graphene (graphane) and fluorographene can be applied for enzyme immobilization with close to 100% yield and activities of the composites significantly exceeding activity of free enzymes...
August 16, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/30116267/ingesting-self-grown-produce-and-seropositivity-for-hepatitis-e-in-the-united-states
#4
Thomas M Diehl, Daniel J Adams, Cade M Nylund
Background: Hepatitis E virus (HEV) is a major cause of hepatitis in developing and industrialized countries worldwide. The modes of HEV transmission in industrialized countries, including the United States, remain largely unknown. This study is aimed at evaluating the association between HEV seropositivity and consumption of self-grown foods in the United States. Methods: Cross-sectional data was extracted from the 2009-2012 National Health and Nutrition Examination Survey (NHANES)...
2018: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/30115889/moderate-effect-of-flavonoids-on-vascular-and-renal-function-in-spontaneously-hypertensive-rats
#5
María D Paredes, Paola Romecín, Noemí M Atucha, Francisco O'Valle, Julián Castillo, María Clara Ortiz, Joaquín García-Estañ
Many studies have shown that flavonoids are effective as antihypertensive drugs in arterial hypertension. In the present work, we have analyzed the effects of some flavonoid extracts in the spontaneous hypertensive rat model (SHR). An important feature of this study is that we have used a low dose, far from those that are usually applied in human therapy or experimental animals, a dose that responded to the criterion of a potential future commercial use in human subjects. Treatments were carried out for 6 and 12 weeks in two groups of SHR rats, which received apigenin, lemon extract, grapefruit + bitter orange (GBO) extracts, and cocoa extract...
August 16, 2018: Nutrients
https://www.readbyqxmd.com/read/30115839/the-protean-acremonium-a-sclerotigenum-egyptiacum-revision-food-contaminant-and-human-disease
#6
Richard C Summerbell, Cecile Gueidan, Josep Guarro, Akif Eskalen, Pedro W Crous, Aditya K Gupta, Josepa Gené, Jose F Cano-Lira, Arien van Iperen, Mieke Starink, James A Scott
Acremonium is known to be regularly isolated from food and also to be a cause of human disease. Herein, we resolve some sources of confusion that have strongly hampered the accurate interpretation of these and other isolations. The recently designated type species of the genus Acremonium , A. alternatum , is known only from a single isolate, but it is the closest known relative of what may be one of the planet's most successful organisms, Acremonium sclerotigenum/egyptianum , shown herein to be best called by its earliest valid name, A...
August 16, 2018: Microorganisms
https://www.readbyqxmd.com/read/30114548/production-of-plant-metabolites-with-applications-in-the-food-industry-using-engineered-microorganisms
#7
REVIEW
Nicolai Kallscheuer, Thomas Classen, Thomas Drepper, Jan Marienhagen
Secondary plant metabolites are extensively used in today's food industries, for example, as coloring-agents, flavouring-agents or texturizing agents. In particular, metabolites with antioxidative properties find applications as preservatives or anti-browning agents. Today, extraction from plant material represents the major source of these metabolites, but progress in the field of metabolic engineering also enabled the microbial production of these valuable compounds as a more economic and ecological alternative...
August 13, 2018: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/30114492/eating-healthy-to-impress-how-conspicuous-consumption-perceived-self-control-motivation-and-descriptive-normative-influence-determine-functional-food-choices
#8
Dovile Barauskaite, Justina Gineikiene, Vilte Auruskeviciene, Bob M Fennis, Miwa Yamaguchi, Naoki Kondo
Functional foods are promoted as products that provide specific health benefits beyond basic nutrition. While a number of studies show that the motivation behind the purchase of such products is oriented towards health concerns, we argue that consumers' choice of functional food can also be driven by less health-related hedonic or social motives, such as a tendency for indulgence vs. self-control or the motivation to impress and show off. This proposition has not been systematically and empirically tested before...
August 13, 2018: Appetite
https://www.readbyqxmd.com/read/30113611/nanomaterial-based-electrochemical-sensors-for-the-safety-and-quality-control-of-food-and-beverages
#9
REVIEW
Venkatesh S Manikandan, BalRam Adhikari, Aicheng Chen
The issue of foodborne related illnesses due to additives and contaminants poses a significant challenge to food processing industries. The efficient, economical and rapid analysis of food additives and contaminants is therefore necessary in order to minimize the risk of public health issues. Electrochemistry offers facile and robust analytical methods, which are desirable for food safety and quality assessment over conventional analytical techniques. The development of a wide array of nanomaterials has paved the way for their applicability in the design of high-performance electrochemical sensing devices for medical diagnostics and environment and food safety...
August 16, 2018: Analyst
https://www.readbyqxmd.com/read/30112698/electrospinning-of-carboxymethyl-chitosan-polyoxyethylene-oxide-nanofibers-for-fruit-fresh-keeping
#10
Tian-Tian Yue, Xiao Li, Xiao-Xiong Wang, Xu Yan, Miao Yu, Jian-Wei Ma, Yu Zhou, Seeram Ramakrishna, Yun-Ze Long
Electrospinning provides an effective method for generating nanofibers from solution of carboxymethyl chitosan/polyoxyethylene oxide (CMCS/PEO). The goal of this work is to explore the potential application of electrospun CMCS/PEO nanofiber membrane in fruit fresh-keeping. The microstructure, antibacterial activity, hydrophilia, and air permeability of the nanofiber membrane have been tested. For comparison, the fresh-keeping effects of commercial cling wrap and CMCS/PEO nanofiber membranes on strawberries' rotting rate and weight loss rate have been studied...
August 15, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/30112385/application-of-autochthonous-lactobacillus-strains-as-biopreservatives-to-control-fungal-spoilage-in-caciotta-cheese
#11
Sofia Cosentino, Silvia Viale, Maura Deplano, Maria Elisabetta Fadda, Maria Barbara Pisano
Fungal spoilage is one of the main causes of economic losses worldwide in the food industry. In the last years, consumer's demands for preservative-free processed foods have increased as a result of growing awareness about the health hazards associated with chemicals. Lactic acid bacteria have been extensively studied for their antibacterial and antifungal potential in order to be used as biopreservatives. The first objective of this study was to investigate in vitro the antifungal activity of autochthonous Lactobacillus strains against moulds commonly associated with cheese spoilage...
2018: BioMed Research International
https://www.readbyqxmd.com/read/30112380/characterization-of-positional-distribution-of-fatty-acids-and-triacylglycerol-molecular-compositions-of-marine-fish-oils-rich-in-omega-3-polyunsaturated-fatty-acids
#12
Huijun Zhang, Hui Zhao, Youwei Zhang, Yingbin Shen, Hang Su, Jun Jin, Qingzhe Jin, Xingguo Wang
The regiospecific characteristics of n-3 polyunsaturated fatty acids (PUFAs) in triacylglycerol (TAG) significantly affect the physicochemical and physiological properties of marine fish oils. In this study, the TAG molecular species composition and positional distributions of fatty acids were investigated in three marine fish species rich in omega-3 PUFAs (anchovy, tuna, and salmon). The regiospecific distribution of the fatty acids was measured with the allylmagnesium bromide (AMB) degradation method. The TAG compositions were analyzed with HPLC and the TAG molecular species were identified with APCI/MS...
2018: BioMed Research International
https://www.readbyqxmd.com/read/30112010/microbiological-quality-and-contamination-level-of-water-sources-in-isiolo-county-in-kenya
#13
Abok Elisha Onyango, Michael Wandayi Okoth, Catherine Nkirote Kunyanga, Bernard Ochieng' Aliwa
Water security and safety is of vital concern in arid and semiarid regions of Kenya. Potable water accessibility and supply is limited due to fluctuating climatic conditions and environmental pollution that lower the wholesomeness of most water sources. The aim of this study was to establish the suitability of these water sources for drinking and use in industrial food processing by the small and medium enterprises (SME's). The aim of this study was to establish suitability of these water sources for drinking and use in industrial food processing by the small and medium enterprises (SME's)...
2018: Journal of Environmental and Public Health
https://www.readbyqxmd.com/read/30111799/pullusurfactans-a-e-new-biosurfactants-produced-by-aureobasidium-pullulans-a11211-4-57-from-a-fleabane-erigeron-annus-l-pers
#14
Jong-Shik Kim, In-Kyoung Lee, Bong-Sik Yun
Yeast biosurfactants have potent applications in medical, cosmeceutical, and food industries due to their specific modes of action, low toxicity, and applicability. In this study, biosurfactant-producing yeasts were screened for various industrial applications. Among them, Aureobasidium pullulans strain A11211-4-57 with potent surfactant activity from fleabane flower, Erigeron annus (L.) pers., was selected. From culture supernatant of strain A11211-4-57, five new low-surface-tension chemicals designated as pullusurfactans A-E were identified through consecutive chromatography steps, involving ODS, silica gel, Sephadex LH-20, and ODS Sep-pak cartridge columns...
August 15, 2018: Journal of Antibiotics
https://www.readbyqxmd.com/read/30111795/in-vitro-and-in-vivo-evaluation-of-the-genotoxic-and-antigenotoxic-potential-of-the-major-chios-mastic-water-constituents
#15
Elena Drosopoulou, Dimitris Vlastos, Ioanna Efthimiou, Paraskevi Kyrizaki, Sofia Tsamadou, Maria Anagnostopoulou, Danai Kofidou, Maxim Gavriilidis, Despoina Mademtzoglou, Penelope Mavragani-Tsipidou
Chios mastic products are well-known for their broad applications in food industry, cosmetics, and healthcare since the antiquity. Given our recent finding that Chios mastic water (CMW) exerts antigenotoxic action, in the present study, we evaluated the genotoxic as well as the antigenotoxic potential of the four major compounds of CMW, namely, verbenone, α-terpineol, linalool, and trans-pinocarveol. The cytokinesis block micronucleus (CBMN) assay in cultured human lymphocytes and the Drosophila Somatic Mutation And Recombination Test (SMART), also known as the wing spot test, were employed...
August 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30111384/an-evaluation-and-exploration-of-irish-food-service-businesses-uptake-of-and-attitudes-towards-a-voluntary-government-led-menu-energy-calorie-labelling-initiative
#16
Sarah Fitzgerald, Lauri Gilgan, Mary McCarthy, Ivan J Perry, Fiona Geaney
OBJECTIVE: To investigate the uptake of and attitudes towards a voluntary government-led energy (calorie) menu labelling initiative in Ireland among a representative sample of food-service businesses and to inform further actions that may need to be undertaken to facilitate successful implementation. DESIGN: A mixed-methods approach, incorporating a national telephone survey, structured observation visits and semi-structured interviews. SETTING: Twenty-six counties in the Republic of Ireland...
August 16, 2018: Public Health Nutrition
https://www.readbyqxmd.com/read/30111331/getting-value-from-the-waste-recombinant-production-of-a-sweet-protein-by-lactococcus-lactis-grown-on-cheese-whey
#17
Mohamed Boumaiza, Andrea Colarusso, Ermenegilda Parrilli, Elena Garcia-Fruitós, Angela Casillo, Anna Arís, Maria Michela Corsaro, Delia Picone, Serena Leone, Maria Luisa Tutino
BACKGROUND: Recent biotechnological advancements have allowed for the adoption of Lactococcus lactis, a typical component of starter cultures used in food industry, as the host for the production of food-grade recombinant targets. Among several advantages, L. lactis has the important feature of growing on lactose, the main carbohydrate in milk and a majoritarian component of dairy wastes, such as cheese whey. RESULTS: We have used recombinant L. lactis NZ9000 carrying the nisin inducible pNZ8148 vector to produce MNEI, a small sweet protein derived from monellin, with potential for food industry applications as a high intensity sweetener...
August 15, 2018: Microbial Cell Factories
https://www.readbyqxmd.com/read/30111089/fabrication-and-characterization-of-starch-nanohydrogels-via-reverse-emulsification-and-internal-gelation
#18
Na Ji, Yang Qin, Man Li, Liu Xiong, Lizhong Qiu, Xiliang Bian, Qingjie Sun
Biopolymer-based nanohydrogels have great potential for various applications, including in the food, nutraceutical, and pharmaceutical industries. Herein, starch nanohydrogels were prepared for the first time via reverse emulsification coupled with internal gelation. The effects of starch type (normal corn, potato, and pea starches), amylose content, and gelation time on the structural, morphological, and physicochemical properties of starch nanohydrogels were investigated. The diameter of starch nanohydrogel particles was around 100 nm after 12 h of retrogradation time...
August 15, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/30111087/impact-of-titanium-dioxide-on-the-bioaccessibility-of-%C3%AE-carotene-in-emulsions-with-different-particle-size
#19
Qian Li, Yinxin Fu, Chengmei Liu, Ruojie Zhang, Zipei Zhang, David Julian McClements
Commercial titanium dioxide (TiO2) ingredients widely used as color additives (E171) in foods and beverages contain an appreciable fraction of particles in the nanoscale range. Little information is currently available about the potential impact of food-grade TiO2 nanoparticles on the gastrointestinal fate of co-ingested bioactive agents, such as nutraceuticals. In this study, we investigated the impact of TiO2 on the bioaccessibility of β-carotene solubilized in model food emulsions using a simulated gastrointestinal tract model...
August 15, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/30111040/-background-and-overall-design-of-chinese-medicine-resources-assessment
#20
Lan-Ping Guo, Ze-Kun Zhang, Xiao-Bo Zhang, Guang Yang, Hai-Nan Wang, Lu-Qi Huang
This paper comprehensively analyses the background and meaning of The Technological Guiding Principle for Assessment of Chinese Medicine Resources enacted by the former CFDA ( China Food and Drug Administration), moreover, it also points out that the Chinese medicine resources assessment with the purpose of guaranteeing the sustainable supplying capacity of Chinese medicine resources is the premise of new drug development; the Chinese medicine resources assessment which takes quality guarantee as the core is a significant action to promote the fixing of place of origin and quality-management antedisplacement for the traditional Chinese medicine industry; in this regard, the Chinese medicine resources assessment which aims at realizing the whole-process traceability is the key to building the high-quality modern traditional Chinese medicine brand...
July 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
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