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https://www.readbyqxmd.com/read/28723226/improving-the-quality-and-safety-of-frozen-muscle-foods-by-emerging-freezing-technologies-a-review
#1
Ximing Zhan, Da-Wen Sun, Zhiwei Zhu, Qi-Jin Wang
Freezing is one of the most widespread used preservation methods for meats including fish meat. Traditional freezing methods such as air blast freezing and cryogenic freezing could induce some quality deterioration such as damage to cell structure, increased drip loss and poor sensory value. Therefore, novel freezing methods have been developed to minimize the disadvantages of traditional freezing methods. This review describes the enhancement of quality attributes of muscle tissues frozen by novel freezing technologies, including high pressure freezing, electrically and magnetically assisted freezing, ultrasound assisted freezing and antifreeze protein...
July 19, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28714785/effects-of-alcohol-on-inhibitory-avoidance-learning-in-zebrafish-danio-rerio
#2
Ricardo Rodrigues Amorim, Priscila Fernandes Silva, Ana Carolina Luchiari
The zebrafish (Danio rerio) can be used in studies addressing the effects of drugs on learning, memory, and anxiety. In the present study, we investigated the effect of different alcohol treatments (chronic and acute) on the learning and anxiety response of zebrafish in an inhibitory avoidance paradigm. Zebrafish were initially exposed to different alcohol treatments and submitted to an inhibitory avoidance protocol, where an electroshock was applied to the fish as they swam from the white to the black side of a shuttle box tank (naturally preferred environment of zebrafish)...
July 17, 2017: Zebrafish
https://www.readbyqxmd.com/read/28702801/exposure-to-anisakis-extracts-can-induce-inflammation-on-in-vitro-cultured-human-colonic-cells
#3
Antonio Speciale, Domenico Trombetta, Antonella Saija, Antonio Panebianco, Filippo Giarratana, Graziella Ziino, Paola Lucia Minciullo, Francesco Cimino, Sebastiano Gangemi
Anisakis spp. is a parasitic nematode whose infective third-stage larvae may be found within the flesh of fish species commonly consumed by humans. Thorough cooking or freezing should render the fish safe for consumption; furthermore, marinating solutions containing biocidal agents might have a significant action against Anisakis larvae. Some studies suggest a relationship between some parasitic infections and development of inflammatory bowel disorders, and Anisakis infection might be a risk factor for stomach or colon cancer...
July 12, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28669159/simplified-techniques-for-killing-the-carcinogenic-opisthorchis-viverrini-metacercariae-in-cyprinid-fish
#4
Panupan Sripan, Thidarut Boonmars, Jiraporn Songsri, Ratchadawan Aukkanimart, Pranee Sriraj, Panaratana Rattanasuwan, Parichart Boueroy, Apiporn Suwannatrai, Surasit Aunpromma, Narong Khuntikeo, Watcharin Loilome, Nisana Namwat, Puangrat Yongvanit, Aung PhyoWai, Sukhonthip Khueangchaingkhwang, Wu Zhilang, Benjamabhorn Pumhirunroj, Atchara Artchayasawat, Sirintip Boonjaraspinyo
Consumption of fluke-free fish is the most important factor in controlling Opisthorchis viverrini (OV) infection in endemic areas such as northeast Thailand and thereby reducing the risk of cholangiocarcinoma. Cooking fish is the best way to avoid infection; however, the cultural practice of eating raw or fermented fish is difficult to change. We investigated the food preparation process, using freezing, heating and fermentation to kill OV metacercariae in fish. Uncooked cyprinid fish infected with OV were divided into three groups: refrigerated at 4 oC for 24, 48 or 72 h (control group); frozen at -20 oC for 24, 48 or 72 h; or heated by microwaving (at 400 or 800 W) or boiling at 90 oC for 1, 5 or 10 min...
June 25, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28662583/acceleration-and-reaction-mechanism-of-the-n-nitrosation-reaction-of-dimethylamine-with-nitrite-in-ice
#5
Kodai Kitada, Yusuke Suda, Norimichi Takenaka
Some reactions (e.g., oxidation of nitrite, denitrification of ammonium) are accelerated in freeze-concentrated solution (FCS) compared to those in aqueous solution. Ice is highly intolerant to impurities, and the ice excludes those that would accelerate reactions. Here we show the acceleration of the N-nitrosation reaction of dimethylamine (DMA) with nitrite to produce N-nitrosodimethylamine (NDMA) in FCS. NDMA is a carcinogenic compound, and this reaction is potentially accelerated in frozen fish/meat. The eaction rate of the N-nitrosation reaction becomes fastest at specific pH...
July 14, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28602768/effects-of-ultrasound-on-permeation-of-cryoprotectants-into-japanese-whiting-sillago-japonica-embryos
#6
Sheikh Mustafizur Rahman, Carlos Augusto Strüssmann, Toru Suzuki, Sullip Kumar Majhi, Ricardo Shohei Hattori, Md Ariful Alam
Cryopreservation of fish embryos requires the swift uptake of considerable amounts of cryoprotectant (CPA) but this process is hampered by the low permeability of the egg chorion. This study examined the relative efficiency of ultrasound to promote the incorporation of CPAs in two different embryonic developmental stages (somites and tail elongation) of Japanese whiting Sillago japonica and performed a preliminary cryopreservation trial using the best conditions determined during the study. Embryos tolerated ultrasound densities up to 37...
June 8, 2017: Cryobiology
https://www.readbyqxmd.com/read/28602282/multi-class-determination-of-undesirables-in-aquaculture-samples-by-gas-chromatography-tandem-mass-spectrometry-with-atmospheric-pressure-chemical-ionization-a-novel-approach-for-polycyclic-aromatic-hydrocarbons
#7
T Portolés, B Garlito, Jaime Nácher-Mestre, M H G Berntssen, J Pérez-Sánchez
In this work, a method for the analysis of 24 PAHs in 19 different matrices, including fish tissues, feeds and feed ingredients, has been developed using gas chromatography coupled to triple quadrupole tandem mass spectrometry with atmospheric pressure chemical ionization source (GC-APCI-MS/MS). The method is based on a modification of the unbuffered QuEChERS method, using freezing as an additional clean-up step and applying a 20-fold dilution factor to the final extract. The procedure was also tested for 15 pesticides and 7 polychlorinated biphenyl (PCB) congeners in order to widen the scope of the method...
September 1, 2017: Talanta
https://www.readbyqxmd.com/read/28586692/functional-innovations-and-the-conquest-of%C3%A2-the%C3%A2-oceans-by-acanthomorph-fishes
#8
REVIEW
Peter C Wainwright, Sarah J Longo
The world's oceans are home to many fantastic creatures, including about 16,000 species of actinopterygian, or ray-finned, fishes. Notably, 85% of marine fish species come from a single actinopterygian subgroup, the acanthomorph or spiny-rayed fishes. Here, we review eight functional innovations found in marine acanthomorphs that have been instrumental in the adaptive radiation of this group in the marine realm. Jaw protrusion substantially enhances the suction feeding mechanism found in all fish. Fin spines serve as a major deterrent to predators and enhance the locomotor function of fins...
June 5, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28551066/socially-induced-plasticity-in-sensorimotor-gating-in-the-african-cichlid-fish-astatotilapia-burtoni
#9
Heike Neumeister, Mila Adelman, William Gallagher, Jiangtao Gou, Karin Merrins, Melissa Perkowski, Stephanie Shih, Beth Terranova, Thomas Preuss
Deficits in prepulse inhibition (PPI), social defeat and social withdrawal are hallmark features of several neurological and neuropsychiatric disorders. However, the link between social environment and PPI i.e., the possible role of social defeat in driving PPI plasticity, is far from clear. Here we explored these questions in the African cichlid fish Astatotilapia burtoni, where males exist as two distinct yet reversible phenotypes. In fish communities, DOMs exhibit frequent aggressive and territorial behaviors, threatening and attacking SUBs, which respond either by engaging in fights and fleeing, or by avoiding interaction with DOMs altogether...
May 24, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28532796/oral-vaccination-through-voluntary-consumption-of-the-convict-grouper-epinephelus-septemfasciatus-with-yeast-producing-the-capsid-protein-of-red-spotted-grouper-nervous-necrosis-virus
#10
Seo Young Cho, Hyoung Jin Kim, Nguyen Thi Lan, Hyun-Ja Han, Deok-Chan Lee, Jee Youn Hwang, Mun-Gyeong Kwon, Bo Kyu Kang, Sang Yoon Han, Hyoungjoon Moon, Hyun Ah Kang, Hong-Jin Kim
Nervous necrosis viruses (NNV) cause serious economic losses in marine fish cultivation. The red-spotted grouper NNV (RGNNV) is the most common species of NNV worldwide. There have been many efforts to develop prophylactic NNV vaccines, and various types of vaccine candidate have been suggested. However, most were designed as injectable vaccines, which are not suitable for large-scale vaccination and cause too much stress to the fish. Oral vaccination through voluntary feeding is an ideal way to provide protective immunity to fish...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28487628/acute-exposure-to-fluoxetine-alters-aggressive-behavior-of-zebrafish-and-expression-of-genes-involved-in-serotonergic-system-regulation
#11
Antonia Theodoridi, Aleka Tsalafouta, Michail Pavlidis
Zebrafish, Danio rerio, is an emerging model organism in stress and neurobehavioral studies. In nature, the species forms shoals, yet when kept in pairs it exhibits an agonistic and anxiety-like behavior that leads to the establishment of dominant-subordinate relationships. Fluoxetine, a selective serotonin reuptake inhibitor, is used as an anxiolytic tool to alter aggressive behavior in several vertebrates and as an antidepressant drug in humans. Pairs of male zebrafish were held overnight to develop dominant-subordinate behavior, either treated or non-treated for 2 h with fluoxetine (5 mg L(-1)), and allowed to interact once more for 1 h...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28479267/anxiolytic-like-effects-of-noribogaine-in-zebrafish
#12
Allan V Kalueff, Aleksandra Kaluyeva, Emeline L Mailet
Noribogaine is the main psychoactive metabolite of the hallucinogenic drug ibogaine, and is a particularly interesting compound potentially useful to treat dependence and various psychiatric disorders. Here, we report the effects of noribogaine on anxiety and locomotion in zebrafish (Danio rerio), a new promising model organism in neurobehavioral and psychopharmacological research. Adult zebrafish were subjected to the 5min novel tank test (NTT) following an acute, 20-min drug immersion in 1, 5 and 10mg/L noribogaine...
May 4, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28466455/valorization-of-proteins-from-co-and-by-products-from-the-fish-and-meat-industry
#13
REVIEW
Tone Aspevik, Åge Oterhals, Sissel Beate Rønning, Themistoklis Altintzoglou, Sileshi Gizachew Wubshet, Asbjørn Gildberg, Nils Kristian Afseth, Ragnhild Dragøy Whitaker, Diana Lindberg
Large volumes of protein-rich residual raw materials, such as heads, bones, carcasses, blood, skin, viscera, hooves and feathers, are created as a result of processing of animals from fisheries, aquaculture, livestock and poultry sectors. These residuals contain proteins and other essential nutrients with potentially bioactive properties, eligible for recycling and upgrading for higher-value products, e.g. for human, pet food and feed purposes. Here, we aim to cover all the important aspects of achieving optimal utilization of proteins in such residual raw materials, identifying those eligible for human consumption as co-products and for feed applications as by-products...
June 2017: Topics in Current Chemistry (Journal)
https://www.readbyqxmd.com/read/28460686/consequences-of-uncontrolled-cooling-during-sterlet-acipenser-ruthenus-sperm-cryopreservation-on-post-thaw-motility-and-fertilizing-ability
#14
Yevhen Horokhovatskyi, Marek Rodina, Hadiseh Dadras Asyabar, Sergii Boryshpolets, Borys Dzyuba
The significant influence of the number and position of fish sperm sample straws in uncontrolled cooling devices on post-thaw spermatozoa parameters, such as motility and fertilizing ability, is presented in this study. The two most popular uncontrolled cooling devices were used in this study: a Styrofoam box setup with a polystyrene floating raft on liquid nitrogen and the dry shipper setup with a straw holder. We tested the effect of different quantities of straws (6 or 60) placed on the polystyrene floating raft and the position of the straws in the holder (on the periphery or in the centre)...
June 2017: Theriogenology
https://www.readbyqxmd.com/read/28450256/proteomic-identification-of-seminal-plasma-proteins-related-to-the-freezability-of-carp-semen
#15
Mariola A Dietrich, Ilgiz Irnazarow, Andrzej Ciereszko
The variation in sperm freezability among individuals within a fish species is a major factor justifying the identification of useful predictive indicators of cryopreservation success. It is unknown at present whether the protein composition of fish seminal plasma affects sperm freezability. Therefore, the aims of this study were to compare the proteome of carp seminal plasma from semen rated as good (GF) and poor (PF) freezability by two-dimensional difference gel electrophoresis followed by MALDI-TOF/TOF mass spectrometry...
April 24, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28395972/optimization-of-conditions-for-the-cryopreservation-of-yellow-catfish-pelteobagrus-fulvidraco-sperm
#16
Sen Yang, Linqiang Han, Rushou Huang, Yongzhong Liufu, Zining Meng, Haoran Lin
Yellow catfish (Pelteobagrus fulvidraco) is a promising aquaculture species in China with an increasing market demand. To serve the growing demand of male broodstock for artificial fertilization and the preservation of valuable strains for selective breeding, we tried to develop a species-specific cryopreservation protocol for yellow catfish sperm in this study. Important factors such as cryoprotectant, freezing height above the liquid nitrogen (LN) surface, dilution ratio, equilibration time, thawing temperature and cool storage before freezing were standardized...
April 7, 2017: Cryobiology
https://www.readbyqxmd.com/read/28381233/structural-integrity-and-viability-of-fredericella-sultana-statoblasts-infected-with-tetracapsuloides-bryosalmonae-myxozoa-under-diverse-treatment-conditions
#17
Ahmed Abd-Elfattah, Mansour El-Matbouli, Gokhlesh Kumar
Fredericella sultana is an invertebrate host of Tetracapsuloides bryosalmonae, the causative agent of proliferative kidney disease in salmonids. The bryozoan produces seed-like statoblasts to facilitate its persistence during unfavourable conditions. Statoblasts from infected bryozoans can harbor T. bryosalmonae and give rise to infected bryozoan colonies when conditions improve. We aimed in the present study to evaluate the integrity and viability of T. bryosalmonae-infected statoblasts after a range of harsh treatment conditions...
April 5, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28361887/mechanisms-of-social-buffering-of-fear-in-zebrafish
#18
Ana I Faustino, André Tacão-Monteiro, Rui F Oliveira
Some humans thrive whereas others resign when exposed to threatening situations throughout life. Social support has been identified as an important modulator of these discrepancies in human behaviour, and other social animals also exhibit phenomena in which individuals recover better from aversive events when conspecifics are present - aka social buffering. Here we studied social buffering in zebrafish, by exposing focal fish to an aversive stimulus (alarm substance - AS) either in the absence or presence of conspecific cues...
March 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28299288/food-safety-and-sustainable-nutrition-workshops-educational-experiences-for-primary-school-children-in-turin-italy
#19
Amaranta Traversa, Daniela Adriano, Alberto Bellio, Daniela Manila Bianchi, Silvia Gallina, Clara Ippolito, Angelo Romano, Paola Durelli, Andrea Pezzana, Lucia Decastelli
European control and prevention policies are focused to guarantee a high level of protection of consumers' health. Food-borne diseases as obesity, diabetes, food allergy, and food-borne outbreaks are increasing. To prevent food-borne diseases, it is fundamental to involve consumers, in particular children, in educational experiences aimed to learn the proper behaviours to be applied. In this context, we designed and performed 5 educational workshops about food safety, hidden allergens in food and nutrition aimed to involve children attending primary and summer school...
January 24, 2017: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28287609/assessing-the-risk-of-an-emerging-zoonosis-of-worldwide-concern-anisakiasis
#20
Miguel Bao, Graham J Pierce, Santiago Pascual, Miguel González-Muñoz, Simonetta Mattiucci, Ivona Mladineo, Paolo Cipriani, Ivana Bušelić, Norval J C Strachan
Anisakiasis is an emerging zoonosis caused by the fish parasitic nematode Anisakis. Spain appears to have the highest reported incidence in Europe and marinated anchovies are recognised as the main food vehicle. Using data on fishery landings, fish infection rates and consumption habits of the Spanish population from questionnaires, we developed a quantitative risk assessment (QRA) model for the anchovy value chain. Spaniards were estimated to consume on average 0.66 Anisakis per untreated (non-frozen) raw or marinated anchovy meal...
March 13, 2017: Scientific Reports
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