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https://www.readbyqxmd.com/read/28735471/effect-of-processing-conditions-on-degree-of-hydrolysis-ace-inhibition-and-antioxidant-activities-of-protein-hydrolysate-from-acetes-indicus
#1
Vignaesh Dhanabalan, Martin Xavier, Nagalakshmi Kannuchamy, Kurukkan Kunnath Asha, Chongtham Baru Singh, Amjad Balange
Protein hydrolysate was prepared from Acetes indicus which is a major bycatch among non-penaeid prawn landings of India. Hydrolysis conditions (enzyme to substrate ratio and time) for preparing protein hydrolysates using alcalase enzyme were optimized by response surface methodology using central composite design. The optimum conditions for enzyme-substrate ratio (mL/100 g) of 1.57, 1.69, 1.60, 1.56, and 1.50 and for hydrolysis time of 97.18, 96.5, 98.15 min, 102.48, and 88.44 min were established for attaining maximum yield, degree of hydrolysis, 2,2-diphenyl-1-picrylhydrazyl, angiotensin I-converting enzyme-inhibiting activity, and metal-chelating activity, respectively...
July 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28735391/toward-a-resilient-functional-microbiome-drought-tolerance-alleviating-microbes-for-sustainable-agriculture
#2
Venkatachalam Lakshmanan, Prasun Ray, Kelly D Craven
In recent years, the utilization of novel sequencing techniques opened a new field of research into plant microbiota and was used to explore a wide diversity of microorganisms both inside and outside of plant host tissues, i.e., the endosphere and rhizosphere, respectively. An early realization from such research was that species richness and diversity of the plant microbiome are both greater than believed even a few years ago, and soil is likely home to the most abundant and diverse microbial habitats known...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28735366/further-validation-of-the-affective-bias-test-for-predicting-antidepressant-and-pro-depressant-risk-effects-of-pharmacological-and-social-manipulations-in-male-and-female-rats
#3
Justyna K Hinchcliffe, Sarah A Stuart, Michael Mendl, Emma S J Robinson
RATIONALE: Affective biases are hypothesised to contribute to the cause and treatment of mood disorders. We have previously found that affective biases, associated with learning and memory, are observed following acute treatments with a range of antidepressant and pro-depressant manipulations. OBJECTIVE: This study aimed to test if similar biases are observed in male and female Sprague Dawley (SD) rats. We also test whether the stress hormone, corticosterone, induces a negative bias in the affective bias test (ABT) consistent with its putative role in the development of depression...
July 22, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28735337/thresholds-of-toxicological-concern-setting-a-threshold-for-testing-below-which-there-is-little-concern
#4
Thomas Hartung
Low dose, low risk; very low dose, no real risk. Setting a pragmatic threshold below which concerns become negligible is the purpose of thresholds of toxicological concern (TTC). The idea is that such threshold values do not need to be established for each and every chemical based on experimental data, but that by analyzing the distribution of lowest or no-effect doses of many chemicals, a TTC can be defined - typically using the 5th percentile of this distribution and lowering it by an uncertainty factor of, e...
2017: ALTEX
https://www.readbyqxmd.com/read/28735316/biochar-rhizosphere-interactions-a-review
#5
Sławomir Głuszek, Lidia Sas Paszt, Beata Sumorok, Ryszard Kozera
Biochar is a solid material of biological origin obtained from the biomass carbonization, designed as a mean to reduce greenhouse gases emission and carbon sequestration in soils for a long time. Biochar has a wide spectrum of practical utilization and is applied as a promising soil improver or fertilizer in agriculture, or as a medium for soil or water remediation. Preparations of biochar increase plant growth and yielding when applied into soil and also improve plant growth conditions, mainly bio, physical and chemical properties of soil...
July 6, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/28735310/an-improve-protocol-for-pcr-using-lm1-and-lm2-primers-for-listeria-monocytogenes-detection-in-food-matrices
#6
Angélica Godínez-Oviedo, Gerardo M Nava, Sofía M Arvizu-Medrano, Montserrat Hernández-Iturriaga
Several studies have observed that a conventional PCR protocol using primers LM1 and LM2 for the identification of gene hlyA Listeria monocytogenes generates non-specific PCR amplifications and false positives. For this reason in this study, we provide a modified PCR protocol that improves the specificity of the LM1 and LM2 primers.
July 6, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/28735222/effect-of-oleic-acid-on-the-properties-of-protein-adsorbed-layers-at-water-oil-interfaces-an-epr-study-combined-with-dynamic-interfacial-tension-measurements
#7
Eleni P Kalogianni, Leandros Sklaviadis, Stella Nika, Ioanna Theochari, Georgia Dimitreli, Despoina Georgiou, Vassiliki Papadimitriou
Multiphase food systems consist of complex interfacial layers where surface active molecules complete compete for adsorption and interact with one another affecting the interfacial properties and the behavior of the food systems involved. The present work focuses on the examination of interactions between proteins playing an which play an important role in milk-rich food systems (namely κ-casein and β-lactoglobulin) and oleic acid (an anionic surfactant abundant in food systems) at the oil/water interface...
July 14, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28735073/from-minutes-to-days-the-ability-of-sows-sus-scrofa-to-estimate-time-intervals
#8
Natascha Fuhrer, Lorenz Gygax
Time estimation helps allocating time to different tasks and to plan behavioural sequences. It may also be relevant to animal welfare if it enables animals assessing the duration of a negative situation. Here, we investigated the ability of dry sows to estimate short and long time periods. We used a variant of the peak-interval procedure and the choice between 2 resources of different quality and replenishment rates to assess time periods in the order of minutes and days, respectively. In the minute-experiment, the sows were trained to expect an interruption while feeding at the end of an interval...
July 19, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28735045/multiplexed-capillary-microfluidic-immunoassay-with-smartphone-data-acquisition-for-parallel-mycotoxin-detection
#9
Jessica M D Machado, Ruben R G Soares, Virginia Chu, João P Conde
The field of microfluidics holds great promise for the development of simple and portable lab-on-a-chip systems. The use of capillarity as a means of fluidic manipulation in lab-on-a-chip systems can potentially reduce the complexity of the instrumentation and allow the development of user-friendly devices for point-of-need analyses. In this work, a PDMS microchannel-based, colorimetric, autonomous capillary chip provides a multiplexed and semi-quantitative immunodetection assay. Results are acquired using a standard smartphone camera and analyzed with a simple gray scale quantification procedure...
July 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28735009/serotonergic-network-in-the-subesophageal-zone-modulates-the-motor-pattern-for-food-intake-in-drosophila
#10
Andreas Schoofs, Sebastian Hückesfeld, Michael J Pankratz
The functional organization of central motor circuits underlying feeding behaviors is not well understood. We have combined electrophysiological and genetic approaches to investigate the regulatory networks upstream of the motor program underlying food intake in the Drosophila larval central nervous system. We discovered that the serotonergic network of the CNS is able to set the motor rhythm frequency of pharyngeal pumping. Pharmacological experiments verified that modulation of the feeding motor pattern is based on the release of serotonin...
July 19, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28734988/can-adverse-effects-of-excessive-vitamin-d-supplementation-occur-without-developing-hypervitaminosis-d
#11
REVIEW
Mohammed S Razzaque
Vitamin D is a fat-soluble hormone that has endocrine, paracrine and autocrine functions. Consumption of vitamin D-supplemented food & drugs have increased significantly in the last couple of decades due to campaign and awareness programs. Despite such wide use of artificial vitamin D supplements, serum levels of 25 hydroxyvitamin D [25(OH)D] does not always reflect the amount of uptake. In contrast to the safe sunlight exposure, prolonged and disproportionate consumption of vitamin D supplements may lead to vitamin D intoxication, even without developing hypervitaminosis D...
July 19, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28734981/apigenin-attenuates-patulin-induced-apoptosis-in-hek293-cells-by-modulating-ros-mediated-mitochondrial-dysfunction-and-caspase-signal-pathway
#12
Yujie Zhong, Chengni Jin, Jing Gan, Xiaorui Wang, Zhenqiang Shi, Xiaodong Xia, Xiaoli Peng
Mycotoxins like patulin (PAT) are among the most significant food contaminant with regard to public health. This study aimed to evaluate the protective effect of apigenin (API), one of the most bioactive flavonoids in plant-derived food, on PAT-induced apoptosis in HEK293 cells. Cells were treated under basic conditions, 8 μM PAT without or with API (2.5, 5 and 10 μM) concomitantly for 10 h. API exerted renoprotective effect by inhibiting intracellular reactive oxygen species (ROS) accumulation, modulating oxidative phosphorylation especially elevating the expression of ATP synthase, re-establishing mitochondrial membrane potential (MMP) and maintaining higher intracellular ATP level, accompanied by p53, Bax downregulation and Bcl-2 upregulation...
July 19, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28734861/low-food-allergy-prevalence-despite-delayed-introduction-of-allergenic-foods-data-from-the-gusto-cohort
#13
Elizabeth Huiwen Tham, Bee Wah Lee, Yiong Huak Chan, Evelyn Xiu Ling Loo, Jia Ying Toh, Anne Goh, Oon Hoe Teoh, Fabian Yap, Kok Hian Tan, Keith M Godfrey, Mary Foong Fong Chong, Hugo P S Van Bever, Yap Seng Chong, Lynette Pei-Chi Shek
BACKGROUND: There is mounting evidence that early introduction of allergenic food decreases the risk of food allergy development, especially in high-risk infants with eczema. However, there is a lack of data to suggest whether this association holds true in Asian populations. OBJECTIVE: To investigate the relationship between the timing of introduction of allergenic foods and food allergy outcomes in infants in the Growing Up in Singapore Towards healthy Outcomes (GUSTO) study...
July 19, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28734860/the-expanding-field-of-biologics-in-the-management-of-chronic-urticaria
#14
Shyam Joshi, David A Khan
Chronic urticaria (CU) is the occurrence of urticaria with or without angioedema for at least 6 weeks. Management has traditionally involved antihistamines as first-line therapy with various alternative therapies for refractory cases. Largely based on the success of biologics for various diseases, this class of drugs has come to the forefront of medical research. The first and only Food and Drug Administration-approved biologic for the management of CU is omalizumab (humanized anti-IgE mAb). In the past decade, a substantial amount of research has been centered on the mechanism of action, efficacy, dosing, and safety of omalizumab...
July 19, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28734784/drug-delivery-innovations-to-address-global-health-challenges-for-pediatric-and-geriatric-populations-through-improvements-in-patient-compliance
#15
Joshua Boateng
Despite significant advances in pharmaceutical and biotechnological drug discovery, the global population is plagued with many challenging diseases. These are further compounded by anticipated explosion in an ageing population, which presents several problems such as polypharmacy, dysphagia and neurological conditions, resulting in non-compliance and disease complications. For antibiotics, poor compliance, can result in development of drug resistant infections which can be fatal. Further, children, especially, in developing countries die unnecessarily from easily treatable diseases (e...
July 19, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28734610/towards-integral-utilization-of-grape-pomace-from-winemaking-process-a-review
#16
REVIEW
Carolina Beres, Gislaine N S Costa, Ignacio Cabezudo, Nina K da Silva-James, Aline S C Teles, Ana P G Cruz, Caroline Mellinger-Silva, Renata V Tonon, Lourdes M C Cabral, Suely P Freitas
Grape is the main fruit crop in several countries. Although many grape-based food products can be found in the market, studies have shown that around 75% of the world grape production is destined for the wine industry. Grape pomace is an abundant by-product from the wine industry, which consists of the remaining skin, seeds and stalks and represents around 25% of total grape weight used in the winemaking process. In countries such as Italy, France and Spain, where wine production is more relevant, the annual grape pomace generation can reach nearly 1200 tonnes per year...
July 19, 2017: Waste Management
https://www.readbyqxmd.com/read/28734553/dietary-inflammatory-index-and-liver-status-in-subjects-with-different-adiposity-levels-within-the-predimed-trial
#17
Irene Cantero, Itziar Abete, Nancy Babio, Fernando Arós, Dolores Corella, Ramón Estruch, Montse Fitó, James R Hebert, M Ángel Martínez-González, Xavier Pintó, M Puy Portillo, Miguel Ruiz-Canela, Nitin Shivappa, Julia Wärnberg, Enrique Gómez-Gracia, J Antoni Tur, Jordi Salas-Salvadó, M Angeles Zulet, J Alfredo Martínez
BACKGROUND & AIMS: To assess the possible association between a validated Dietary Inflammatory Index (DII) and specific dietary components with suitable non-invasive markers of liver status in overweight and obese subjects within the PREDIMED study. METHODS: A cross-sectional study encompassing 794 randomized overweight and obese participants (mean ± SD age: 67.0 ± 5.0 y, 55% females) from the PREDIMED (PREvención con DIeta MEDiterránea) trial was conducted...
July 6, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28734370/class-modelling-in-food-analytical-chemistry-development-sampling-optimisation-and-validation-issues-a-tutorial
#18
REVIEW
Paolo Oliveri
Qualitative data modelling is a fundamental branch of pattern recognition, with many applications in analytical chemistry, and embraces two main families: discriminant and class-modelling methods. The first strategy is appropriate when at least two classes are meaningfully defined in the problem under study, while the second strategy is the right choice when the focus is on a single class. For this reason, class-modelling methods are also referred to as one-class classifiers. Although, in the food analytical field, most of the issues would be properly addressed by class-modelling strategies, the use of such techniques is rather limited and, in many cases, discriminant methods are forcedly used for one-class problems, introducing a bias in the outcomes...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28734358/fluorescent-quenching-immune-chromatographic-strips-with-quantum-dots-and-upconversion-nanoparticles-as-fluorescent-donors-for-visual-detection-of-sulfaquinoxaline-in-foods-of-animal-origin
#19
Gaoshuang Hu, Wei Sheng, Jingmin Li, Yan Zhang, Junping Wang, Shuo Wang
In this study, two novel fluorescence quenching immune chromatographic strips (FQICS) were developed to detect sulfaquinoxaline (SQX) in foods of animal origin. These proposed FQICSs were based on fluorescence resonance energy transfer (FRET) from fluorescence donors (quantum dots or upconversion nanoparticles) to fluorescence acceptors (colloidal gold nanoparticles). Compared with traditional colloidal gold-based immune chromatographic strips (ICS), these FQICSs showed positive correlation between the fluorescent signals and the targets, and allowed user to get test results from weak fluorescent signals...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28734264/a-small-scale-portable-method-for-extracting-microplastics-from-marine-sediments
#20
Rachel L Coppock, Matthew Cole, Penelope K Lindeque, Ana M Queirós, Tamara S Galloway
Microplastics (plastic particles, 0.1 μm-5 mm in size) are widespread marine pollutants, accumulating in benthic sediments and shorelines the world over. To gain a clearer understanding of microplastic availability to marine life, and the risks they pose to the health of benthic communities, ecological processes and food security, it is important to obtain accurate measures of microplastic abundance in marine sediments. To date, methods for extracting microplastics from marine sediments have been disadvantaged by complexity, expense, low extraction efficiencies and incompatibility with very fine sediments...
July 19, 2017: Environmental Pollution
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