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Intelligent food packaging is new packaging which in recent decades has been used in developed countries and is designed to show safety, quality and product security. Given the importance of fishery products at the household food basket, on the other hand, this product is made of quick-corruption to the color indicators on the packaging fillet of rainbow trout used during refrigerator storage. In this research, treatments include common packaging with phenol red indicator and common packaging with bromocresol green indicator. Indicators made of colored reagent phenol red and bromocresol green in matrix low-density polyethylene film were used in bags made of low-density polyethylene produced in the country. For the determine quality were used of the microbial tests (total count bacteria, psychotropic bacteria) and chemical (pH, TVN, TBRSA) at the time of changing the color indicators and also on days zero, 5, 10, 15 and 20 are kept at refrigerator temperature C˚(4±2). Based on the results of the color change indicators and the relationship with chemical and microbial tests have been done by SPSS 18 statistical software. Shelf-life rainbow trout fillet for the treatments of common packaging with phenol red indicator and common packaging with bromocresol green indicator was determined at refrigerator temperature 13 to 14 days.

Aims and literature review: Effects of ferulic acid and grape seed extract for preventing black spots forming in whiteleg shrimps and its replacement rather than by synthetic compounds. So far to prevent black spots on shrimp by grape seed extract and Frulic acid has not been investigated in Iran. Material and methods: Three treatments were used to implement this study. The treatments contained immersed shrimp ferulic and and grape seed extract (at a concentration of 3 % and 1.5%, respectively) for 15 minutes and without antioxidant shrimp. Qualities of samples had been evaluated by chemical and sensory tests at a temperature of -18 °C in frozen storage for 6 months. Results: Peroxide value, Thiobarbituric acid, free fatty acids and TVB-N factors showed significant differences compared to control samples (p0.05). Sensory factors including color (melanosis) of ferulic acid and grape seed extract treatment showed significant difference compared to control samples. Sensory quality and shelf life of no observed significant difference in ferulic acid compared to grape seed extract (p>0.05). Black spot wasn't formed in the experimental treatments till the end of the storage period but melanosis was formed in the control samples in less than a month being kept in frozen storage.

Awareness of health and nutrition of fish has led the food industry to development of fishery-based ready-to-eat products. In this study seven filling materials based on 60-70 - 80 %fish mince from 7 local fish species ‘i.e.’ Talang Queen fish (Scomberoides commersonnianus), oriental sole (Brachirus orientalis), Barred sickle fish (Drepane longimana), Big eye Croaker (Pennahia anea), Japanese threadfin bream (Nemipterus japonicas), javelin grunter (pomadasys kaakan) and Indian mackerel (Rastrelliger kanagurta) were formulated and applied for developing fish strudels. A 9-point hedonic scale ranging from 1 (extremely dislike) to 9 (extremely like) was used for screening the acceptance of the prototypes. A 3-component D-optimal Mixture Design was also applied to optimize the fish strudel formulation. Preliminary experiments were done to identify the high-impact ingredients, which had a high effect on the sensory quality when their levels (%) were changed. The results indicated that fish strudel containing 60% Talang Queen fish (Scomberoides commersonnianus) mince in the filling materials had significantly higher liking in odor, flavor, and overall acceptability than the other prototypes. So it was selected for quality changes study. Product's characteristics and stability were studied during 6-month storage at -18 °C. The fish strudel packed in a polyethylene sealed bag was stable during the storage period. The peroxide and TVBN values remained low. The results in this paper provide important information for companies planning to develop convenience food from low value fish. Furthermore, development of strudel filled with fish mince/ flesh could be an effective way to enhance nutritional and functional value of such products. The products could be used as a nutritious snack especially for kids which could be a means of increasing fish consumption. Iranian Fisheries Science Research Institute Published

Awareness of health and nutrition of fish has led the food industry to development of fishery-based ready-to-eat products. In this study seven filling materials based on 60-70 - 80% fish mince from 7 local fish species ‘i.e.’ Talang Queen fish (Scomberoides commersonnianus), oriental sole (Brachirus orientalis), Barred sickle fish (Drepane longimana), Big eye Croaker (Pennahia anea), Japanese threadfin bream (Nemipterus japonicas), javelin grunter (pomadasys kaakan) and Indian mackerel (Rastrelliger kanagurta) were formulated and applied for developing fish strudels. A 9-point hedonic scale ranging from 1 (extremely dislike) to 9 (extremely like) was used for screening the acceptance of the prototypes. A 3-component D-optimal Mixture Design was also applied to optimize the fish strudel formulation. Preliminary experiments were done to identify the high-impact ingredients, which had a high effect on the sensory quality when their levels (%) were changed. The results indicated that fish strudel containing 60% Talang Queen fish (Scomberoides commersonnianus) mince in the filling materials had significantly higher liking in odor, flavor, and overall acceptability than the other prototypes. So it was selected for quality changes study. Product's characteristics and stability were studied during 6-month storage at -18 °C. The fish strudel packed in a polyethylene sealed bag was stable during the storage period. The peroxide and TVBN values remained low. The results in this paper provide important information for companies planning to develop convenience food from low value fish. Furthermore, development of strudel filled with fish mince/ flesh could be an effective way to enhance nutritional and functional value of such products. The products could be used as a nutritious snack especially for kids which could be a means of increasing fish consumption.

The Caspian goby, Neogobius caspius, is an endemic species of Gobiidae family in the Caspian Sea and it has ecological importance (as food for Caspian commercial fish such as sturgeons). The main aims of this study are, studying distribution, length, weight and age structure, sex ratio, diet, reproduction biology and morphological characters of this species in Guilan coast at waters of the Caspian sea and the sampling has been done monthly from Oct. 2005 to Sep. 2006 in 4 station from Astara to Chaboksar, with bottom trawl which had 12.5 meter length, 4.7 meter gape width and 2 mm mesh size in code end. The results showed N. caspius abundance is 9.82±11.93% of Gobiids and 7.92±10.10% of total fish numbers sampled in the study area (13824 specimens belong to 16 fish species) and there were significant differences among stations and seasons. CPUA of N.Caspius was estimated 52.5±105.9 ind/hec and 412.7±770.7 g/hec and there were significant differences among stations and seasons. Maximum body weight, total length and age were measured 65.10 g, 176 mm and 6 years old with an average 8.74±9.9 g, 84.83±28.4 mm and 1.83 years old, respectively and maximum age of males and females was 6 and 5 years old respectively and there were significant differences among stations and seasons and between sexes. It was estimated algometric growth model from length-weight regression, coefficient of K Von Bertalanffy growth model was estimated 0.42 and 0.68 in male and female, respectively. Sex ratio was 1.27 female to 1 male. Coefficient vacuity, relative gut length and intensity of 169 fullness were 8.72%, 0.76±0.17 and 267.7±263.3 for, respectively and Caspian goby fed on 30 different prey consist Zooplanktons (8 types), Benthic animals (15 types) and fishes (7 types) and young and yearlings have fed mainly mixed food (zooplankton and benthic animals) and adults on zoobenthose. Gammarids, Bivalvia, Cumaceae and Vormes constituted 44.7, 38.9, 24.8 and 19.7 % of prescence in full-gutted samples respectively, they were mainly preys (number and weight), hence this species is considered as euryphagus, carnivorous, benthphagus species. It was determined, Caspian goby spawns from March until last June, males and females take part in spawning in 2.8g and 65 mm and 1.3 g and 52 mm, respectively. Length at 50% maturity (LM50) was 80.2 and 77.5 mm in males and females, respectively. Maturity took place at 2 years old for both sexes, too. The absolute fecundity was estimated 109-1350 (451.6±216.3) eggs and relative fecundity 18-80 (36.8±9.2) eggs per one grams of body weight and diameter of ripe eggs was measured 1.31-2.60 (2.18±0.19) mm. Morphologically, there were 15 morphologically significant statistical differences between males and females and 15 differences among stations, sexual dimorphism was observed, too.

The Caspian goby, Neogobius caspius, is an endemic species of Gobiidae family in the Caspian Sea and it has ecological importance (as food for Caspian commercial fish such as sturgeons). The main aims of this study are, studying distribution, length, weight and age structure, sex ratio, diet, reproduction biology and morphological characters of this species in Guilan coast at waters of the Caspian sea and the sampling has been done monthly from Oct. 2005 to Sep. 2006 in 4 station from Astara to Chaboksar, with bottom trawl which had 12.5 meter length, 4.7 meter gape width and 2 mm mesh size in code end. The results showed N. caspius abundance is 9.82±11.93% of Gobiids and 7.92±10.10% of total fish numbers sampled in the study area (13824 specimens belong to 16 fish species) and there were significant differences among stations and seasons. CPUA of N.Caspius was estimated 52.5±105.9 ind/hec and 412.7±770.7 g/hec and there were significant differences among stations and seasons. Maximum body weight, total length and age were measured 65.10 g, 176 mm and 6 years old with an average 8.74±9.9 g, 84.83±28.4 mm and 1.83 years old, respectively and maximum age of males and females was 6 and 5 years old respectively and there were significant differences among stations and seasons and between sexes. It was estimated algometric growth model from length-weight regression, coefficient of K Von Bertalanffy growth model was estimated 0.42 and 0.68 in male and female, respectively. Sex ratio was 1.27 female to 1 male. Coefficient vacuity, relative gut length and intensity of 169 fullness were 8.72%, 0.76±0.17 and 267.7±263.3 for, respectively and Caspian goby fed on 30 different prey consist Zooplanktons (8 types), Benthic animals (15 types) and fishes (7 types) and young and yearlings have fed mainly mixed food (zooplankton and benthic animals) and adults on zoobenthose. Gammarids, Bivalvia, Cumaceae and Vormes constituted 44.7, 38.9, 24.8 and 19.7 % of prescence in full-gutted samples respectively, they were mainly preys (number and weight), hence this species is considered as euryphagus, carnivorous, benthphagus species. It was determined, Caspian goby spawns from March until last June, males and females take part in spawning in 2.8g and 65 mm and 1.3 g and 52 mm, respectively. Length at 50% maturity (LM50) was 80.2 and 77.5 mm in males and females, respectively. Maturity took place at 2 years old for both sexes, too. The absolute fecundity was estimated 109-1350 (451.6±216.3) eggs and relative fecundity 18-80 (36.8±9.2) eggs per one grams of body weight and diameter of ripe eggs was measured 1.31-2.60 (2.18±0.19) mm. Morphologically, there were 15 morphologically significant statistical differences between males and females and 15 differences among stations, sexual dimorphism was observed, too. Iranian Fisheries Science Research Institute Published