Impact of freezing on nutritional composition of some less known selected fresh fishes in Iran
نویسنده
چکیده
The study was designed to investigate the effect of duration of frozen storage on the proximate profile of fishes lizadussmieri, sparidae, sciaenide and platycephalidae. The fishes were subjected to sixty days of frozen storage. Protein decreases with increasing duration of frozen storage; with the fresh samples (not frozen) having the highest protein content (13.02 ± 0.09%). while the least (10.13 ± 0.06) was recorded for fish samples that were frozen for sixty days. Similar results were obtained for the fat content where the highest fat content (0.25 ± 0.20%) was recorded for the fresh samples and the least value was recorded for those stored for sixty days. Ash content and moisture content also decreased during storage. The most susceptible fish to protein loss during frozen storage was fish sparidae (13.02% 12.74%) respectively. Frozen storage lead to a loss of nutrient quality in Iranian fishes during the processing.
منابع مشابه
Determination of Nutritional Value and Oxidative Stability of Fresh Walnut
Walnut (Juglans regia L.) is a tree with significant economic value and usage for human health and various food industries. However, fresh walnut kernels are a less widespread product than the dried kernels. This study aimed to determine the fresh walnut kernel properties including, fatty acid composition, proximate composition, total phenolics (TPs), total antioxidant capacity (TAC), acidic, p...
متن کاملInfluence of Cypermethrin on DNA and RNA Content in Different Organs of Fresh Water Fish Cyprinus carpio
In this study, freshwater fish Cyprinus carpio was exposed to sub lethal concentration of synthetic pyrethroids insecticide cypermethrin to evaluate the impact on nucleic acids in different organs. Fishes were exposed to sub lethal concentration (1/10th of LC50 value) of cypermethrin for three different durations, 7, 14 and 21 days. In seven day exposed fishes, DN...
متن کاملSpecific composition and morphological peculiarities of endemic monogenean parasites of freshwater fishes of Iran
Result obtained during ten years research work (1990-2000) on distribution of monogenean fauna Iranian fishes indicates that its composition of monogenean fauna of Iranian fishes depends on their habit and since Iran includes three different zoogeographical zones with highly endemic fish hosts, its monogenean parasites have specific composition. The Caspian fauna is characterized by relatively ...
متن کاملSpecific composition and morphological peculiarities of endemic monogenean parasites of freshwater fishes of Iran
Result obtained during ten years research work (1990-2000) on distribution of monogenean fauna Iranian fishes indicates that its composition of monogenean fauna of Iranian fishes depends on their habit and since Iran includes three different zoogeographical zones with highly endemic fish hosts, its monogenean parasites have specific composition. The Caspian fauna is characterized by relatively ...
متن کاملThe effects of different dietary levels of organic and inorganic selenium on some growth performance and proximate composition of juvenile rainbow trout (Oncorhynchus mykiss)
Selenium, a trace mineral complement is used as cofactor of antioxidant enzymes that protects fishes against environmental stress agents and enhances performance in fishes. In this study the different levels of organic and inorganic source of selenium were included in juvenile rainbow trout diet to evaluate feed conversion ratio (FCR), specific growth rate (SGR), weight gain percent (WG), cond...
متن کامل