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https://www.readbyqxmd.com/read/27915269/effect-of-ph-on-the-interaction-of-volatile-compounds-with-the-myofibrillar-proteins-of-duck-meat
#1
Q L Yang, X W Lou, Y Wang, D D Pan, Y Y Sun, J X Cao
In order to clarify the influence of curing agents on the flavor of duck, the effect of pH on the surface hydrophobicity, secondary structures, and adsorption capacity of myofibrillar proteins to alcohols, aldehydes, ketones, and esters was assessed using Raman spectroscopy, gas chromatography-mass spectrometer, and other methodologies. The hydrophobicity decreased as pH increased from 5.0 to 8.0; β-turn turned into α-helix and random coil as pH increased from 5.0 to 7.0, while α-helix and random coil turned into β-sheet and β-turn as pH increased from 7...
December 3, 2016: Poultry Science
https://www.readbyqxmd.com/read/27914350/phosphorus-flows-in-a-peri-urban-region-with-intensive-food-production-a-case-study
#2
S Bittman, S C Sheppard, D Poon, D E Hunt
Excess phosphorus (P) in peri-urban regions is an emerging issue, whereas there is global depletion of quality mined supplies of P. The flow of P across the landscape leading to regional surpluses and deficits is not well understood. We computed a regional P budget with internal P flows in a fairly discreet peri-urban region (Lower Fraser Valley, BC) with closely juxtaposed agricultural and non-agricultural urban ecosystems, in order to clarify the relationship between food production, food consumption and other activities involving use of P (e...
November 30, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27913919/a-critical-overview-on-the-biological-and-molecular-features-of-red-and-processed-meat-in-colorectal-carcinogenesis
#3
REVIEW
Arunan Jeyakumar, Lakal Dissabandara, Vinod Gopalan
A recent investigation by the World Health Organisation (WHO) has found that the consumption of processed meat and potentially red meat promotes carcinogenesis and can increase the risk of colorectal cancer. This literature review aims to summarise both the red and processed meat molecules associated with colorectal carcinogenesis and investigate their relationship with the pathogenic process of colorectal cancer. Literature relating to the carcinogenic effect of red and processed meat molecules was critically reviewed...
December 2, 2016: Journal of Gastroenterology
https://www.readbyqxmd.com/read/27911775/how-constraints-affect-the-hunter-s-decision-to-shoot-a-deer
#4
Florian K Diekert, Andries Richter, Inger Maren Rivrud, Atle Mysterud
Hunting is the predominant way of controlling many wildlife populations devoid of large carnivores. It subjects animals to mortality rates that far exceed natural rates and that differ markedly in which age, sex, or size classes are removed relative to those of natural predators. To explain the emerging selection pattern we develop behavioral microfoundations for a hunting model, emphasizing in particular the constraints given by the formal and informal norms, rules, and regulations that govern the hunter's choice...
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911482/meat-quality-and-intramuscular-fatty-acid-composition-of-catria-horse
#5
Maria Federica Trombetta, Francesco Nocelli, Marina Pasquini
In order to extend scientific knowledge on autochthonous Italian equine meat, the physical-chemical parameters of Catria Horse Longissimus thoracis (LT) muscle and its nutritional characteristics have been investigated. Ten steaks of Catria foal raised at pasture and fattened indoors for 2 months were dissected, and LT muscle was analyzed for chemical composition, total iron, drip loss, colorimetric characteristics, intramuscular fat, fatty acid profile and nutritional indexes. Steak dissection showed that LT muscle accounted for 36...
December 2, 2016: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/27911040/retrospective-study-evaluating-seroprevalence-of-hepatitis-e-virus-in-blood-donors-and-in-swine-veterinarians-in-italy-2004
#6
L De Sabato, I Di Bartolo, E Montomoli, C Trombetta, F M Ruggeri, F Ostanello
Hepatitis E is an emerging viral disease in developed countries, with sporadic cases occasionally linked to the consumption of raw or undercooked pork, wild boar or deer meat. Cases due to transfusion or transplantation have also been reported. In developed countries, hepatitis E is considered a zoonosis and pig is the main reservoir. In the last few years, several studies conducted in Europe reported variable seroprevalence rates among the general population, ranging between 0.26% and 52.5%. A higher seroprevalence was described among workers who come in contact with pigs...
December 2, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/27910795/i-did-eat-my-vegetables-agreement-between-parent-and-child-food-intake-diaries
#7
Natalie Rangelov, L Suzanne Suggs, Pedro Marques-Vidal
OBJECTIVE: To assess the level of agreement between children and their parents when reporting a child's food consumption. DESIGN: Cross-sectional study in which children and parents independently completed 7 d food diaries describing the foods and drinks the child consumed at every meal and snack. The association between child and parent reporting was assessed for nineteen food groups using Kendall's tau-b non-parametric correlations, Spearman's rank correlations, kappa coefficients and Lin's concordance measure of agreement...
December 2016: Public Health Nutrition
https://www.readbyqxmd.com/read/27910747/effect-of-dietary-fat-on-gene-expression-in-poultry-a-review
#8
Bahman Navidshad, M Royan
Traditionally, poultry farmers aimed to produce birds with high body weight and feed conversion ratio. However, in line with current developments, there are other traits that must be taken into account as well. These include producing poultry meat with lower body fat content and improving the nutritional quality of the poultry meat to appeal to consumer requirements. The interrelated importance of human diet and health status is an ancient subject. Human foods as a lifestyle factor is involved in the incidence of many types of diseases, such as cardiovascular diseases and cancer...
2016: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/27909559/identification-of-dietary-patterns-in-urban-population-of-argentina-study-on-diet-obesity-relation-in-population-based-prevalence-study
#9
Sonia Alejandra Pou, María Del Pilar Díaz, Ana Gabriela De La Quintana, Carla Antonella Forte, Laura Rosana Aballay
BACKGROUND/OBJECTIVES: In Argentina, obesity prevalence rose from 14.6% in 2005 to 20.8% in 2013. Although the number of studies on noncommunicable diseases and dietary patterns as a unique dietary exposure measure has increased, information on this topic remains scarce in developing countries. This is the first population-based study investigating the association between diet and obesity using a dietary pattern approach in Argentina. We aimed (a) to identify current dietary patterns of the population of Córdoba city, (b) to investigate its association with obesity prevalence, and (c) to identify and describe dietary patterns from the subgroup of people with obesity...
December 2016: Nutrition Research and Practice
https://www.readbyqxmd.com/read/27908499/a-strategy-to-modulate-the-electrophoretic-behavior-in-plastic-microchips-using-sodium-polystyrene-sulfonate
#10
Jinxiu Guo, Yu Chen, Lizhi Zhao, Ping Sun, Hongli Li, Lei Zhou, Xiayan Wang, Qiaosheng Pu
Plastic microchips have been broadly used as disposable microfluidic devices, but the poorly defined surface properties limit their application. Herein, we proved that an anionic polymer could be used as the background electrolyte (BGE) to provide a strong and stable cathodic electroosmotic flow (EOF) and modulate the electrophoretic behavior for efficient separation in relative thicker microchannels (∼75μm id). A cathodic EOF of ∼3.3×10(-4)cm(2)V(-1)s(-1) was maintained using sodium polystyrene sulfonate (PSSNa) with a molecular weight of 5×10(5) as the BGE, which ensured fluorescein isothiocyanate labeled biogenic amines (BAs) appeared ahead of other components in the electropherograms obtained with microchips of cyclic olefin copolymer...
November 23, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27907152/dietary-probiotic-bacillus-subtilis-strain-fmbj-increases-antioxidant-capacity-and-oxidative-stability-of-chicken-breast-meat-during-storage
#11
Wen Kai Bai, Fei Jing Zhang, Tian Jin He, Peng Wei Su, Xiong Zhi Ying, Li Li Zhang, Tian Wang
This study was aimed to measure the dietary effects of probiotic Bacillus subtilis strain fmbj (BS fmbj) on antioxidant capacity and oxidative stability of chicken breast meat during storage. Treatment groups were fed the basal diet with BS fmbj at 0 g/kg (CON), 0.2 g/kg (BS-1), 0.3 g/kg (BS-2), or 0.4 g/kg (BS-3) doses without antibiotics. During 8 days of storage at 4°C, BS-2 group showed a significant improvement (P < 0.05) on meat quality (pH, Drip loss, Cooking loss, Shear force, color L*, a*, b*), free radical scavenging activity (DPPH, ABTS+, H2O2), tissues antioxidant enzyme capacity (SOD, CAT, GSH-Px, GSH, T-SH), mitochondria antioxidant enzyme capacity (MnSOD, GPx, GSH), mRNA expression of antioxidant genes (Nrf2, HO-1, SOD, CAT, GSH-Px) and mitochondrial function genes (avUCP, NRF1, NRF2, TFAM, PGC-1α), oxidative damage index (MDA, ROS, PC, 8-OHdG), and MMP level in chicken breast meat as compared to the CON group...
2016: PloS One
https://www.readbyqxmd.com/read/27904397/antibacterial-activity-of-indian-borage-plectranthus-amboinicus-benth-leaf-extracts-in-food-systems-and%C3%A2-against-natural-microflora-in-chicken-meat
#12
Sandeep Kumar Gupta, Pradeep Singh Negi
The ability of acetone and ethyl acetate extracts of the leaves of a traditional Indian medicinal plant, Indian borage (Plectranthus amboinicus Benth) to prevent spoilage of artificially inoculated model food systems (cabbage and papaya) and natural microflora of chicken meat was evaluated. These extracts were able to reduce the bacterial counts in all food systems; however, the effective concentration varied with the complexity of the system (cabbage<papaya<chicken). A probable mode of action of extracts was investigated by analyzing the changes they cause in bacterial cell wall and leakage of nucleic acid from bacterial cells...
March 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27904080/an-ic-ms-ms-method-for-the-determination-of-1-hydroxyethylidene-1-1-diphosphonic-acid-on-uncooked-foods-treated-with-peracetic-acid-based-sanitizers
#13
Ippei Suzuki, Hiroki Kubota, Takashi Ohtsuki, Chiye Tatebe, Atsuko Tada, Takeo Yano, Hiroshi Akiyama, Kyoko Sato
A rapid, sensitive, and specific analytical method for the determination of 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP) on uncooked foods after treatment with a peracetic acid-based sanitizer (PAS) was developed. The method involves simple sample preparation steps and analysis using ion chromatography (IC) coupled with tandem mass spectrometry (MS/MS). The quantification limits of HEDP on uncooked foods are 0.007 mg/kg for vegetables and fruits and 0.2 mg/kg for meats. The recovery and relative standard deviation (RSD) of HEDP analyses of uncooked foods ranged from 73...
2016: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27903522/dietary-patterns-explaining-differences-in-bone-mineral-density-and-hip-structure-in-the-elderly-the-rotterdam-study
#14
Ester Al de Jonge, Jessica C Kiefte-de Jong, Albert Hofman, André G Uitterlinden, Brenda Ct Kieboom, Trudy Voortman, Oscar H Franco, Fernando Rivadeneira
BACKGROUND: Evidence on the association between dietary patterns, measures of hip bone geometry, and subsequent fracture risk are scarce. OBJECTIVE: The objective of this study was to evaluate whether dietary patterns that explain most variation in bone mineral density (BMD) and hip bone geometry are associated with fracture risk. DESIGN: We included 4028 subjects aged ≥55 y from the Rotterdam study. Intake of 28 food groups was assessed with the use of food-frequency questionnaires...
November 30, 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27902904/infection-with-some-infectious-bursal-disease-virus-pathotypes-produces-virus-in-chicken-muscle-tissue-and-the-role-of-humoral-immunity-as-a-mitigation-strategy
#15
Mariana Sá E Silva, Kateri Bertran, Kira Moresco, Daral J Jackwood, David E Swayne
Infectious bursal disease virus (IBDV) causes important economic losses and negatively affects global trade in poultry and poultry products. This study determined the presence of IBDV in primary lymphoid tissues and muscle tissue of infected broilers and the role of vaccination as a mitigation strategy. In the first study, specific-pathogen-free (SPF) broiler chickens were challenged with STC (classical [cIBDV]), Indiana (variant [varIBDV]), rA (very virulent [vvIBDV]), or Ohio (serotype 2, avirulent) IBDV...
December 2016: Avian Diseases
https://www.readbyqxmd.com/read/27899063/a-simple-sample-preparation-for-simultaneous-determination-of-chloramphenicol-and-its-succinate-esters-in-food-products-using-high-performance-liquid-chromatography-high-resolution-mass-spectrometry
#16
Vasiliy Amelin, Anton Korotkov
A simple method is described for determination of chloramphenicol and its succinate esters in food products. Examination of food products using HPLC/high-resolution mass spectrometry showed the presence of not only chloramphenicol but also its succinate forms. A scheme is proposed for determining chloramphenicol and its succinate esters (calculated as chloramphenicol) in meat (beef, pork, poultry), milk, liver, kidney, eggs, fish and honey. Analytes are extracted from a 1.0 g sample with 5 ml acetonitrile. It was found that using the method of standard addition and diluting the extract with water leads to the elimination of matrix effects and also eliminates errors associated with peak splitting due to the separate elution of the differing forms of the analyte...
November 30, 2016: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/27899057/moulds-and-mycotoxins-detected-in-the-regional-speciality-fermented-sausage-slavonski-kulen-during-a-one-year-production-period
#17
Jelka Pleadin, Manuela Zadravec, Dragan Brnić, Irena Perković, Mario Škrivanko, Dragan Kovačević
The aim of this study was to investigate the surface-to-interior mycotoxin contamination of the regional speciality meat product "Slavonski Kulen", occurring during a 12- month period, and to identify moulds present on its surface in the final production stage. In total, 15 pieces of "Slavonski Kulen" were produced and sampled at production months 0, 3, 6, 9 and 12 (three samples per piece). Concentrations of aflatoxin B1 (AFB1) and ochratoxin A (OTA) were determined using the ELISA method, while the identification of moulds made use of both traditional and molecular methods...
November 30, 2016: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/27898947/study-of-bovine-gene-the-temporal-spatial-expression-patterns-polymorphism-and-association-analysis-with-meat-production-traits
#18
E Juszczuk-Kubiak, K Bujko, M Grześ, M Cymer, K Wicińska, A Szostak, M Pierzchała
The gene () encodes a transcription factor belonging to the MEF2 family that plays an important role in myogenesis by transcriptional regulation of genes involved in skeletal muscle growth and development. Despite the established importance of the factors in the muscular growth and development, the temporal-spatial expression and biological function of have not been reported in cattle. The aim of this study was to analyze the level of expression in the developing longissimus dorsi muscle (LM) of 4 cattle breeds (Polish Holstein-Friesian [HF], Limousine [LIM], Hereford [HER], Polish Red [PR]), differing in terms of meat production and utility type, at 6, 9, and 12 mo of age...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898928/predicting-pork-loin-chop-yield-using-carcass-and-loin-characteristics
#19
K B Wilson, M F Overholt, E K Hogan, C Schwab, C M Shull, M Ellis, N S Grohmann, A C Dilger, D D Boler
The objective was to determine the predictive ability of carcass length for the number of equal-thickness chops obtained from a boneless pork loin. Longer pork carcasses are assumed to yield longer loins and, therefore, an increased number of chops. Loins were collected from pigs (1,238 total) raised under commercial conditions and marketed when the mean pig weight in a pen reached 138 kg. Pigs were slaughtered over 7 wk in a commercial facility. Carcass length was measured at 1 d postmortem on the left side of each carcass from the anterior edge of the symphysis pubis bone to the anterior edge of the first rib...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898922/influence-of-pork-and-pork-by-products-on-macronutrient-and-energy-digestibility-and-palatability-in-large-exotic-felids
#20
C J Iske, C L Morris, K L Kappen
Two experiments were conducted to evaluate digestibility and palatability of a new commercial pork-based raw diet for zoo-managed felids. Currently 2 protein sources (beef or horse) comprise the majority of commercial raw meat diet formulations for exotic carnivores in zoological institutions. Pork-based diets have traditionally not been widely utilized and thus nutrient digestibility of pork has not been adequately evaluated in exotic carnivores. The objectives of this study were 1) to determine if a pork-based diet had similar apparent total tract macronutrient digestibility and fecal scores as standard zoo carnivore diets formulated with either horse or beef, in large exotic felids and 2) evaluate palatability of pork for use in zoos...
September 2016: Journal of Animal Science
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