Freshness of deep frozen mackerel and croaker during long-term storage

the effects of keyword and context methods on pronunciation and receptive/ productive vocabulary of low-intermediate iranian efl learners: short-term and long-term memory in focus

از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...

RANCIDITY DEVELOPMENT DURING MACKEREL (Scomber scombrus) FROZEN STORAGE: EFFECT OF CATCHING SEASON AND COMMERCIAL PRESENTATION

EFFECT OF GUTTING ON RANCIDITY DEVELOPMENT IN HORSE MACKEREL (Trachurus trachurus) DURING FROZEN STORAGE

Gutting handling was applied to fresh horse mackerel (Trachurus trachurus) to study its effect on rancidity development during the frozen storage (up to 12 months at 20oC). For it, chemical (free fatty acids, FFA; peroxide value, PV; thiobarbituric acid index, TBA-i; fluorescence ratio, FR) and sensory (odour and taste) analyses were carried out. Results showed that gutting treatment of horse m...

QUALITY LOSS RELATED TO RANCIDITY DEVELOPMENT DURING HORSE MACKEREL (Trachurus trachurus) FROZEN STORAGE

The development of rancidity and its effect on quality loss was studied in frozen horse mackerel (Trachurus trachurus). For that, two different kinds of fish products (whole fish and fillets) were stored at a commercial frozen temperature (-20oC) for up to 12 months and were compared to samples stored at a much low temperature (-80oC). Analyses included: lipid hydrolysis (free fatty acid format...

Apparent loss of urinary albumin during long-term frozen storage: HPLC vs immunonephelometry.

BACKGROUND Urinary albumin detection by immunonephelometry is decreased by approximately 30% in samples that have been frozen at -20 degrees C. An HPLC method for assessment of urinary albumin that detects immunoreactive and immunochemically nonreactive albumin has been introduced as an alternative to immunonephelometry. We investigated whether this technique is affected by sample temperature, ...