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  • 1
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    Evaluation of the chemical composition and in vitro antimicrobial activity of Rosmarinus officinalis, Zataria multiflora, Anethum graveolens and Eucalyptus globulus against Streptococcus iniae the cause of zoonotic disease in farmed fish (2018)
    Details
    Publication Date: 2021-05-19
    Description: There is a growing interest of industry to replace synthetic chemicals by natural products with bioactive properties from plant origin. The purpose of this study was to elucidate the factors affecting antimicrobial effectiveness of essential oils Rosmarinus officinalis, Zataria multiflora, Anethum graveolens and Eucalyptus globulus against food spoilage and pathogenic bacteria, Streptococcus iniae the cause of zoonotic streptococcosis in fish. Food conservation is based on an intermittent search for foods with a high nutritional quality and microbial stability and it has been reached by the control of the growth / survival of spoiling and pathogen foodborne microorganisms. Based on several reports, fish streptococcosis is currently considered as one of the main limiting factors in the aquaculture industry, due to the significant economic losses (annually more than $150 million) that these infections cause in different cultured fresh and seawater fish species worldwide. The sensitivity of S. iniae to antibacterial activity of the essential oils was determined using well diffusion assays and paper disc diffusion method. The ranges of minimum inhibitory concentration (MIC) of the oils and extracts were 3.9–250 and 7.8- 500 µg/ml and the ranges of minimum bactericidal concentration (MBC) values for the oils and extracts were found to be in the range of 7.8-250 and 15.6-500 µg/ml, respectively. The essential oils exhibited antibacterial activity against S. iniae. The essential oil of rosemary showed the strongest antimicrobial activity.
    Description: Published
    Keywords: Fish disease ; Essential oils (EO) ; Rosmarinus officinalis ; Zataria multiflora ; Anethum graveolens ; Eucalyptus globulus ; Antibacterial activity ; Minimum inhibitory concentration (MIC)
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.702-716
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  • 2
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    Reproductive biology of Hilsa shad (Tenualosa ilisha) in coastal Waters of the Northwest of Persian Gulf (2018)
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    Publication Date: 2021-05-19
    Description: Some aspects of the reproductive biology of Hilsa Shad, Tenualosa ilisha from the Persian Gulf and rivers of Khouzestan Province of Iran were analyzed. A total of 485 fish were sampled by gillnet from landing center of Arvand (AR) and Bahmanshir (BR) rivers during period of April 2010 to September 2010. Reproductive characteristic of T.ilisha showed that sex ratio is M: F=1:2, in PG, AR and BR. This means that females predominate than males. Monthly variations in Gonadosomatic index (GSI) of both sexes were quite apparent. In PG, maximum values were recorded in April for male and female. In AR and BR, maximum values were recorded in June and May for male and female, respectively. Changes in GSI indices are considered as a proof that maturation season in AR and BR is started from March and spawning is started from April to July in AR and BR is started from March to August. The Length - Weight relationship was measured for PG as W= 1.459L2.687, AR and BR as W=2.189L3.166 and W=1.840L2.937, respectively.
    Description: Published
    Keywords: Biology ; Physiology ; Tenualosa ilisha ; Biological parameters ; GSI ; Sex ratio
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.201-215
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  • 3
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    The effects of Rosmarinus officinalis essential oil on the quality changes and fatty acids of Ctenopharyngodon idella (2019)
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    Publication Date: 2021-05-19
    Description: The effects of the use of essential oil of Rosmarinus officinalis on the chemical quality and fatty acids of fish fillets of Ctenopharyngodon idella were investigated during frozen storage at -18 ºC for 6 months. Fish fillets were divided into three groups; the control (C) without rosemary essential oil, the second group with 0.2 % rosemary essential oil (A) and the third with 0.4 % (v/v) rosemary essential oil (B). According to compositional analysis of the rosemary essential oil by GC-MS, the α-pinene (31.91%) and 1, 8- cineol (14.66%) were the predominant components. Results showed that there were no significant differences of protein in group C and A, but differences were seen between A and B (p〈0.05). A significant decrease in lipid was obtained throughout between groups during storage (p〈0.05). There were no significant differences of pH between three groups at storage periods (p〉0.05). Effect of rosemary essential oil showed that the least changed fatty acids were on polyunsaturated fatty acids (PUFA), monounsaturated fatty acids (MUFA) and saturated fatty acids (SFA), respectively. Microbial results showed TVC content of fillets fish did not exceed the limit during storage period for A and B Groups (〈 7 log CFU g^-1 ). Rosemary essential oil at 0.2% and 0.4 % was effective in controlling the chemical compositions and fatty acids, but sensory attributes reveal a decreasing trend in the attributes like color, odour, taste, firmness and general acceptance for two groups (p〈0.05), but group A indicated better scores than Group B at the end of the storage period.
    Description: Published
    Keywords: Ctenopharyngodon idella ; Rosmarinus officinalis ; Rosmarinus officinalis essential oil ; Chemical compositions ; Fatty acids ; Quality
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.95-109
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  • 4
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    Study on the growth parameters of Capoeta trutta (Heckel, 1843) in Shour River, Iran (2018)
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    Publication Date: 2021-05-19
    Description: In this study growth characteristics of 815 tuwini (Capoeta trutta) in Shour River were investigated during July 2010 through June 2011. The population was composed of 62.94% females and 32.02% males. Sex ratio was 1: 1.96, with significant differences observed at 1:1 (x2= 150.6 df= 1 p〈0.05). The age distribution of this population ranged from 〈1 to 6 years. The distribution of length and weight was between 95 and 300 mm. The average length, except in 〈1 year olds, was statistically significant between sexes and average weight in all age groups was statistically significant between sexes (p〈0.05). Weight-length relationship was determined as W=0.0115L2.9475 (R=0.91) in males and W=0.0096L3.0025 (R= 0.88) in females. Von-Bertalanffy growth equation was Lt= 24.5(1-e -0.333(t+2.54)) for males and Lt= 36.4 (1- e -0.129(t+4.02)) for females. Growth performance index was also estimated as Φ=2.301 in males and Φ=2.223 in females.
    Description: Published
    Keywords: Biology ; Physiology ; Capoeta trutta ; Growth parameters
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.262-274
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  • 5
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    The relationships between heavy metals (As, Cd, Cu, Zn, Pb, Hg, Ni) levels and the size of pharaoh cuttlefish (Sepia pharaonis) from Persian Gulf (2018)
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    Publication Date: 2021-05-19
    Description: Concentrations of both essential (Zn and Cu) and non- essential (As, Cd, Pb, Hg, Ni) metals were measured in the organs (mantle, branchial hearts, gill and digestive gland) of Sepia pharaonis captured in the coastal waters of Bushehr Province in the Persian Gulf (Iran). The relationships between S. pharaonis size (mantle length) and metal concentrations in tissues were investigated by linear regression analysis. Metal concentrations (As µg g-1 d.w.) was highest in the digestive gland and lowest in the mantle of S. pharaonis, except for Ni. The concentrations of metals were found to follow the order: Zn〉 Cu〉Pb〉 Ni〉Hg〉 Cd〉 As. The mean Zn concentrations ranged from 37.72± 5.32 to 9.32± 3.73 µg g-1 d.w, whereas the mean As concentrations ranged from 0.01± 0.007 to 0.06± 0.05 µg g-1 d.w, respectively. Results of linear regression analysis showed that significant relationships between metal concentrations and fish size were positive, except for cadmium concentrations in the gills. The digestive gland of S. pharaonis would seem to constitute a good potential indicator of heavy metal concentrations in the marine environmental. Results from this study revealed that except for Pb the concentration of metals in S. pharaonis samples were below the threshold values As recommended by the FAO and EC guidelines.
    Description: Published
    Keywords: Sepia pharaonis ; Digestive gland ; Heavy metals
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.267-287
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  • 6
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    Effects of different methods of cooking on mineral and vitamin (A and E) content of yellow fin sea bream (Acanthopagrus latus) fish fillets (2018)
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    Publication Date: 2021-05-19
    Description: The aim of this study was to evaluate the effect of cooking on the content of minerals and vitamins yellow fin seabream fillets on the baking process. In this study fillets of yellow fin seabream (Acanthopagrus latus) with three methods include steaming, frying and grilling the (grill a) the amount of vitamins (a and E) and minerals (iron, phosphorus, copper, zinc, calcium, magnesium, potassium, sodium) was conducted with a sample of crude compared Grdyd.bray measured amounts of vitamin and mineral content Vitamins high performance liquid chromatography (HPLC) method for measuring atomic absorption spectrophotometry was used minerals. The comparison of all the minerals in samples cooked with raw samples, showed no significant changes (p˂0 /05).The content of vitamin A in the cooked samples, compared to the raw samples decreased significantly (p˂0 /05).the lowest amount of vitamin A were observed in fried samples (66/0 ± 6/7 mg/100gr wet weight ) (p˂0 /05). The content of vitamin E in all cooked samples, compared to the raw samples decreased significantly (p˂0 /05)and the lowest levels of vitamin E was observed in grilled samples (02/0 ± 293/0 mg/100gr wet weight). The results showed that three cooking methods including steamin and grilling and frying caused a insignificant change in mineral content but effect of these three methods of cooking on the content of vitamin a and E in fish fillets yellowfin seabream (Acanthopagrus latus) was different.
    Description: Published
    Keywords: Acanthopagrus latus ; Yellowfin Seabream ; Acanthopagrus latus ; Methods of cooking fish ; Minerals ; Vitamin A ; Vitamin E ; Phosphorus ; Potassium ; Magnesium ; Calcium ; Zinc ; Copper
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.79-88
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  • 7
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    Study on effect of different packaging on fillets persistence of grass carp (Ctenopharyngodon idella) in refrigerated temperature (4°C) (2017)
    Details
    Publication Date: 2021-05-19
    Description: This study was evaluated the influence of different packaging: aerobic, vacuum and sil vacuum on shelf life grass carp (Ctenopharyngodon idella) in refrigerated temperature (4°C) by determine microbiological and chemical characteristics. Results showed that in all treatment PV values were did not increase of acceptability limit (10 meq/kg) during the storage and in aerobic packaging values of TVN (30.31±0.79 mg/100 g) that were above of acceptable limits. In sil vacuum and vacuum packaging, values of TBA were at acceptable limits during 15th and 9th days for aerobic packaging. In aerobic packaging, the value of TVC 7.80± 0.34 log cfu/ g in 12th and in all packaging in 15th were not at acceptable limits (9.06± 0.34 log cfu/ g in aerobic, 7.52± 0.26 log cfu/ g in vacuum and 7.04± 0.12 log cfu/ g in sil vacuum). Results indicated that the best shelf-life of grass carp fillets observed in sil vacuum and vacuum packaging in 12thduring, but sil vacuum than the better (p〈0.05).
    Description: Published
    Keywords: Vacuum packaging ; Ctenopharyngodon idella ; Grass carp ; Sil vacuum packaging ; Shelf life ; Temperature
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.63-72
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  • 8
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    Effect of dietary Lactobacillus casei and different levels of immunogen on the activities of immunological and hematological factors of Cyprinus carpio (2018)
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    Publication Date: 2021-05-19
    Description: The aim of this study was to evaluate the effects of synbiotic Lactobacillus casei PTCC 1608 and immunogen prebiotic on immunological and hematological factors of Cyprinus carpio. 300 fish (with the average weight of 40 g) were fed for 75 days with various diets including the diets containing 0.5 (A), 1 (B) and 1.5% (C) immunogen and L.casei probiotic with the concentration of 5×107 CFU/g, treatment D contained only L.casei probiotic with the concentration of 5×107 CFU/g and the control treatment without synbiotic (E). Results showed that the levels of white blood cells in the treatment A, B and C on day 60 were significantly different as compared to day 0 and the control group (P〈0.05). The levels of red blood cells in the treatment A, B, C and D on day 30 were at the highest level and were significantly different as compared to day 0 and the control group (P〈0.05). The levels of lysozyme in the treatment C and D until day 30 and in other treatments until day 60 were significantly different from the control group (P〈0.05). The administration of synbiotic in the treatment C and D on respiratory burst activities on day 30 and in other treatments until day 60 and the level of complement on day 60 in the treatment A were significantly different as compared to those on day 0 and the control group (P〈0.05). The results suggested that dietary administration of synbiotic can improve some immunological and hematological parameters and the best level of immunogen was 1% with synbiotic.
    Description: Published
    Keywords: Lactobacillus casei ; Immunogen ; Hematological parameters ; Immunological parameters ; Cyprinus carpio ; Dietary ; Levels
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 139-150
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  • 9
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    The embryonic development and formation of Bunnei (Barbus sharpeyi Gunther, 1874) (2017)
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    Publication Date: 2021-05-19
    Description: Published
    Keywords: Bunnei ; Embryonic development ; Incubation ; Mesopotamichthys sharpeyi ; Barbus sharpeyi ; Eggs ; Fish ; Blood ; Spawning ; Growth
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.1-13
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  • 10
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    Effect of freezing on the chemical quality changes and fatty acid composition of cultured shrimp muscle, Litopenaus vannamei (2017)
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    Publication Date: 2021-05-19
    Description: Effect of freezing on the chemical quality and fatty acid composition of cultured shrimp muscle, Litopenaus vannamei were investigated by measuring moisture content, ash, total protein content, total lipid content, fatty acid composition, and Thio barbituric Acid (TBA) during 6 month keeping in frozen storage at 18°C. According to the results, moisture content (75.93% to 73.10%), ash (1.5% to 2.07%), total protein content (25.3% to 20.87%) and total lipid content (0.83% to 0.23%) changed during six month of frozen storage. PUFA (45.21%) content was higher than the SFA (30.08%) and MUFA (19.32%) content. The poly chain unsaturated fatty acids, saturated fatty acids and mono chain unsaturated fatty acids in shrimp muscle were C18:2n6 (15.32%), C20:5n3 (9.68%), C22:6n3 (8.48%), C16:0(15.18%), C18:0 (13.04%) and C18:1n9 (15.32%), respectively. The thio barbituric acid values (TBA) ranged from 0.0065 to 0.35 mg malonaldehyde/kg during freezing storage. The lipid stability of shrimp muscle, were in acceptable limit during frozen storage for up to 6 month.
    Description: Published
    Keywords: Shrimp ; Litopenaus vannamei ; Freezing ; Food quality ; Fisheries products ; Chemical composition ; Fatty Acid ; Composition ; Muscle
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.31-44
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