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https://www.readbyqxmd.com/read/28530604/biogenic-amine-concentrations-and-evolution-in-chilled-canadian-pork-for-the-japanese-market
#1
Tania M Ngapo, Lise Vachon
The aim of this study was to evaluate concentrations and evolution of biogenic amines in Canadian pork destined for the Japanese market. At 48h post-mortem, export quality loins were aged at -1.7°C for 13, 28, 43 or 58d (chilled) or 4.0°C for 5d (fresh). Increasing concentrations of putrescine, spermine and spermidine were observed with chilled ageing period and were greater in chilled export (43d at -1.7°C) than domestic market (5d at 4.0°C) pork equivalents. Cadaverine was detected, but was not influenced by ageing conditions, and tyramine was only detected in some samples after 43days at -1...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28530593/dummy-template-molecularly-imprinted-polymer-for-solid-phase-extraction-of-phenothiazines-in-meat-based-on-computational-simulation
#2
Yi Ping Song, Nan Li, Hui Cai Zhang, Geng Nan Wang, Ju Xiang Liu, Jing Liu, Jian Ping Wang
The 3D structures of two dummy templates and four phenothiazine drugs were studied by using computational simulation method. Then the two dummy templates were used to synthesize two molecularly imprinted polymers respectively. Results showed that the recognition abilities of the two polymers were consistent with the theoretical calculation. Then a solid phase extraction column was developed for extraction of the four phenothiazines in meat (pork, chicken) followed by determination with high performance liquid chromatography...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28530559/meat-species-identification-by-two-direct-triplex-real-time-pcr-assays-using-low-resolution-melting
#3
Phuvadol Thanakiatkrai, Thitika Kitpipit
We developed and validated the first direct multiplex real-time PCR assay with melt curve analysis for the identification of different types of meat. The assay detects six commonly eaten meat species and provides the following benefits: ease of use, shortened analysis time, and decreased analysis cost. Species-specific primers were designed from cytochrome b, cytochrome oxidase I, and 16S rRNA genes to generate PCR products with specific melting peaks that differentiate pork, beef, horsemeat, duck meat, ostrich meat, and chicken...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28530300/physicochemical-and-antimicrobial-properties-of-%C3%AE%C2%B5-polylysine-carboxymethyl-chitosan-polyelectrolyte-complexes-and-their-effect-against-spoilage-microorganisms-in-raw-pork
#4
Liang Guo, Yuecheng Meng, Sheng Fang
This study investigated the properties of polyelectrolyte complexes (PECs) fabricated by using ε-polylysine (EPL) and N,O-carboxymethyl chitosan (NOCC) and their potential applications in raw pork. The phase behaviors of PECs in aqueous solutions are characterized by the ζ-potential, mean radius and turbidimetric measurements. Stable colloidal and soluble PEC systems can be fabricated by carefully adjusting the mass ratio of NOCC to EPL. The minimum inhibitory concentration (MIC) assay showed that the colloidal and soluble PECs could maintain the antimicrobial activity of EPL in a laboratory medium...
May 22, 2017: Food & Function
https://www.readbyqxmd.com/read/28528296/novel-ultrasound-approach-for-measuring-marbling-in-pork
#5
Agnieszka Ludwiczak, Marek Stanisz, Dariusz Lisiak, Piotr Janiszewski, Marta Bykowska, Joanna Składanowska, Piotr Ślósarz
An ultrasound examination was done on the m. longissimus lumborum, between the 10th and the 11th thoracic vertebra, on two sides (inside and outside the thoracic cavity) of the left half-carcasses of 162 fatteners. The carcasses were classified for lean meat percentage using the SEUROP system. The R pig carcasses (47.7% lean) had the thickest backfat (30.6mm; P≤0.01) and the highest content of intramuscular fat (IMF=2.28%; P≤0.01). More artifacts-free images were collected from the inside compared to the outside of the pig carcasses (90...
May 12, 2017: Meat Science
https://www.readbyqxmd.com/read/28527367/ysicochemical-properties-lipid-oxidation-and-sensory-attributes-of-pork-patties-with-lupin-protein-concentrate-stored-in-vacuum-modified-atmosphere-and-frozen-state
#6
Marzena Danowska-Oziewicz, Lidia Kurp
The effect of lupin protein concentrate (LPC) addition on selected physicochemical properties, lipid oxidation and sensory quality of pork patties was investigated. LPC was added at the level 1%, 2% and 3%. Patties were packed in vacuum and modified atmosphere (MA) and stored 42days in a refrigerator while aerobically packed patties were stored 84days in a frozen state. Patties with LPC showed a lower cooking loss, were less cohesive and juicy, and demonstrated a non-typical flavour compared to the control samples...
May 10, 2017: Meat Science
https://www.readbyqxmd.com/read/28527268/-seroprevalence-and-risk-factors-of-cysticercosis-in-two-rural-communities-in-anzo%C3%A3-tegui-state-venezuela
#7
Manuel Toquero, Antonio Morocoima, Elizabeth Ferrer
INTRODUCTION: Cysticercosis is caused by Taenia solium cysticerci, which are located mainly in the central nervous system causing neurocysticercosis. In Venezuela, few epidemiological studies on this disease have been conducted. OBJECTIVE: To determine the seroprevalence and risk factors for cysticercosis in two rural communities in Anzoátegui state. MATERIAL AND METHODS: We conducted a survey to collect data on possible risk factors and signs and symptoms of the disease, and we took 182 samples in two communities, Boquerón and Punto Lindo...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28526496/molecular-characterization-and-antimicrobial-resistance-profile-of-clostridium-perfringens-type-a-isolates-from-humans-animals-fish-and-their-environment
#8
Jay Prakash Yadav, Suresh Chandra Das, Pankaj Dhaka, Deepthi Vijay, Manesh Kumar, Asish Kumar Mukhopadhyay, Goutam Chowdhury, Pranav Chauhan, Rahul Singh, Kuldeep Dhama, Satya Veer Singh Malik, Ashok Kumar
The study was aimed to characterize, and determine antibiogram of C. perfringens type A isolated from the feces of human and animal diarrhoeal cases, as well as healthy animals, meat of pigs and goats, gills and intestine of fish and samples from fish pond. A total of 460 samples, including human diarrhoeal cases (n = 130); diarrhoeal cases of pig (n = 52) and goat (n = 50); fecal samples from healthy pig (n = 50) and goat (n = 50); meat samples viz. pork meat (n = 52); goat meat (n = 50) and fish including their environmental sources (n = 26) were used for isolation and identification of C...
May 16, 2017: Anaerobe
https://www.readbyqxmd.com/read/28523275/online-detection-of-peroxidase-using-3d-printing-active-magnetic-mixing-and-spectra-analysis
#9
Shanshan Bai, Chengqi Gan, Gaozhe Cai, Lei Wang, Mingyong Chen, Qingan Han, Jianhan Lin
A new method for online detection of peroxidase (POD) using 3D printing, active magnetic mixing, fluidic control, and optical detection was developed and demonstrated in this study. The proposed POD detection system consisted of a 3D printing and active magnetic mixing based fluidic chip for online catalytic reaction, an optical detector with a fluidic flow cell for quantitative determination of the final catalysate, and a single-chip microcontroller based controller for automatic control of two rotating magnetic fields and four precise peristaltic pumps...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28515651/effect-of-gleditsia-sinensis-lam-extract-on-physico-chemical-properties-of-emulsion-type-pork-sausages
#10
Sang-Keun Jin, Han-Sul Yang, Jung-Seok Choi
This study was performed to investigate the effect of Gleditsia sinensis Lam. extract on the physicochemical properties of emulsion-type pork sausages during storage at 10°C for 4 wk. Treatments were as follows: (C, control; T1, sodium ascorbate 0.05%; T2, Gleditsia sinensis Lam. 0.05%; T3, Gleditsia sinensis Lam. 0.1%; T4, Gleditsia sinensis Lam. 0.2%; T5, Gleditsia sinensis Lam. 0.1% + sodium ascorbate 0.05%). The values of pH, moisture content, lightness, redness, and sensory attributes were all significantly decreased, while the yellowness, chroma, hue angle, and texture properties were increased during storage with increase of the Gleditsia sinensis Lam...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28515649/effect-of-persimmon-peel-diospyros-kaki-thumb-extracts-on-lipid-and-protein-oxidation-of-raw-ground-pork-during-refrigerated-storage
#11
Ju-Hui Choe, Hack-Youn Kim, Cheon-Jei Kim
The inhibition effect of persimmon peel extracts (PPE) (0.05(PPE-0.05), 0.1(PPE-0.1), and 0.2 g(PPE-0.2) per meat sample) on lipid and protein oxidation of pork patties during chilled storage for 12 days were investigated and compared to ascorbic acid (As-0.05) and butylhydroxytoluene (BHT) (BHT-0.01). The meat samples treated with PPE had greater (p<0.05) a* values comparing control in raw pork patties meat from day 4 of storage. The addition of PPE at all concentrations on meat samples effectively inhibited the formation of oxidation products as shown by decreasing conjugated dienes (CD), peroxide values (POVs), thiobarbituric acid reaction substances (TBARS), and carbonyl content during chilled storage for 12 d...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28515648/evaluation-of-antioxidative-activity-of-various-levels-of-ethanol-extracted-tomato-powder-and-application-to-pork-patties
#12
Hyeong Sang Kim, Koo Bok Chin
This study was performed to evaluate antioxidant activity of tomato powder extracted by various concentrations of ethanol (0, 25, 50, 75, 100%) and to evaluate the physicochemical properties and antioxidant activities of pork patties with ethanol extracted tomato (EET) powder. No differences in the contents of total of individual phenolic compounds including gallic acid and catechin, were observed among the treatments (p>0.05). Among the various concentrations, 50% and 75% EET powder showed the highest free radical scavenging and iron chelating activities (p<0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28515643/quality-of-frozen-pork-from-pigs-fed-diets-containing-palm-kernel-meal-as-an-alternative-to-corn-meal
#13
Jeong Yeon An, Hae In Yong, So Yeon Kim, Han Bit Yoo, Yoo Yong Kim, Cheorun Jo
The objective of this study was to evaluate the effect of different levels of palm kernel meal (PKM), an alternative to corn, on the quality of pork. A total of 72 crossbred pigs ([Yorkshire × Landrace] × Duroc) were assigned into four dietary treatments (PKM level of 0, 4, 8, or 12%). After 12 wk, one pig of median weight in each pen was selected and slaughtered to analyze meat quality. The color, free radical scavenging activity, lipid oxidation, texture, composition of fatty acids, and sensory qualities of pork loin were evaluated post slaughter...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28513289/detection-of-meat-species-adulteration-using-high-resolution-mass-spectrometry-and-a-proteogenomics-strategy
#14
Alberto Ruiz Orduna, Erik Husby, Charles T Yang, Dipankar Ghosh, Francis Beaudry
Due to the internationalization of food production and distribution, there has been a significant increase of food fraud in recent years. Food fraud can have serious health implications, and occurs when food manufacturers implement unethical practices such as making false label claims as well as using additives and fillers within their products to increase profitability. This has been a serious concern. Meat adulteration was examined using a well-defined proteogenomic annotation, carefully selected surrogate tryptic peptides and high-resolution mass spectrometry...
May 17, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28511110/determination-of-regional-relationships-among-salmonella-spp-isolated-from-retail-pork-circulating-in-the-chiang-mai-municipality-area-using-a-wgs-data-approach
#15
Prapas Patchanee, Thanaporn Eiamsam-Ang, Juntakarn Vanaseang, Phacharaporn Boonkhot, Pakpoom Tadee
Salmonella is recognized as a significant zoonotic foodborne pathogen, and pork products are involved in one-fifth of infections. Whole genome sequencing data of Salmonella isolated from retail's pork circulating in the Chiang Mai Municipality area between April 2013 and September 2014, were used to focus on genetic diversity and proven in pig-human transmission based on Multilocus Sequence Typing (MLST). Additionally, WGS data were used to investigate virulence genes, to assess the hazard or pathogenic potential transferred into the food production chain...
May 10, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28508212/reverse-genetics-for-porcine-reproductive-and-respiratory-syndrome-virus
#16
Mingyuan Han, Hanzhong Ke, Yijun Du, Qingzhan Zhang, Dongwan Yoo
Porcine reproductive and respiratory syndrome (PRRS) is a reemerging swine disease, and has become economically the most significant disease in pork production worldwide. The causative agent is PRRS virus (PRRSV), which is a member virus of the family Arteriviridae. The PRRSV genome is a single-stranded positive-sense RNA and is infectious. Two strategies in the PRRSV reverse genetics system have been employed for reconstitution of progeny virus: RNA transfection and DNA transfection. The PRRSV reverse genetics has broadly been used for studies including protein structure-function relationship, foreign gene expression, vaccine development, virulence determinants, and viral pathogenesis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28505349/decline-of-ecological-functions-performed-by-dung-beetles-in-areas-of-atlantic-forest-and-contribution-of-rollers-and-tunnellers-in-organic-matter-removal
#17
M Batilani-Filho, M I M Hernandez
The feeding behavior of the Scarabaeinae subfamily has positive implications on ecosystem functioning. We characterize the necrophagous and coprophagous dung beetle assemblages, and we quantify the removal of swine carrion and domestic dog dung in two areas with different degrees of environmental disturbance in an Atlantic Forest remnant located in Florianopolis, SC, Brazil. The experiment was setup at eight sampling points in each area, by installing one control and two collection and removal assessment arenas for collecting necrophagous dung beetles while simultaneously evaluating the removal of carrion (50 g of rotting pork for 48 h)...
May 12, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28505141/a-decade-of-progress-toward-ending-the-intensive-confinement-of-farm-animals-in-the-united-states
#18
Sara Shields, Paul Shapiro, Andrew Rowan
In this paper, the Humane Society of the United States (HSUS) farm animal protection work over the preceding decade is described from the perspective of the organization. Prior to 2002, there were few legal protections for animals on the farm, and in 2005, a new campaign at the HSUS began to advance state ballot initiatives throughout the country, with a decisive advancement in California (Proposition 2) that paved the way for further progress. Combining legislative work with undercover farm and slaughterhouse investigations, litigation and corporate engagement, the HSUS and fellow animal protection organizations have made substantial progress in transitioning the veal, pork and egg industries away from intensive confinement systems that keep the animals in cages and crates...
May 15, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28505126/unprocessed-meat-consumption-and-incident-cardiovascular-diseases-in-korean-adults-the-korean-genome-and-epidemiology-study-koges
#19
Kyong Park, Jakyung Son, Jiyoung Jang, Ryungwoo Kang, Hye-Kyung Chung, Kyong Won Lee, Seung-Min Lee, Hyunjung Lim, Min-Jeong Shin
Meat consumption has been shown to be associated with cardiovascular disease (CVD) risk in Western societies; however, epidemiological data are limited on the Korean population. Therefore, we examined the associations between unprocessed meat consumption and CVD incidence in Korea. Data were derived from the Ansung-Ansan cohort (2001-2012), including 9370 adults (40-69 years) without CVD or cancer at baseline. Total unprocessed meat consumption was estimated as the sum of unprocessed red meat (beef, pork, and organ meat) and poultry consumption...
May 15, 2017: Nutrients
https://www.readbyqxmd.com/read/28500964/dietary-linseed-oil-supplemented-with-organic-selenium-improved-the-fatty-acid-nutritional-profile-muscular-selenium-deposition-water-retention-and-tenderness-of-fresh-pork
#20
Jiang Jiang, Xinyue Tang, Yan Xue, Gang Lin, Youling L Xiong
Cross-bred pigs were fed a control diet (with 0.3ppm sodium selenite and 1.5% soybean oil) or organic selenium diets (0.3ppm Se-Yeast with 1.5% soybean or linseed oil) to investigate nutrient supplement effects on meat quality and oxidative stability. The organic selenium diets increased muscular selenium content up to 54%, and linseed oil increased n-3 fatty acids two-fold while lowering the n-6/n-3 fatty acid ratio from 13.9 to 5.9 over the selenite control diet (P<0.05). Organic selenium yeast treatments with linseed oil reduced pork drip loss by 58-74% when compared with diets with soybean oil...
April 6, 2017: Meat Science
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