کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8891363 1628507 2018 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of frozen storage temperature on the microstructures and physicochemical properties of pre-frozen perch (Micropterus salmoides)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Influence of frozen storage temperature on the microstructures and physicochemical properties of pre-frozen perch (Micropterus salmoides)
چکیده انگلیسی
The objective of this work was to investigate the effect of frozen storage temperature on the ice crystal microstructure and physicochemical properties of pre-frozen perch. Perch cube were stored at −18, −40, −80 °C and liquid nitrogen (−196 °C) respectively for one month after pre-frozen in liquid nitrogen for 1 h. With the increase of storage temperature from −80 to −18 °C, temperature-dependent relationship was applicable: cell space, area and amount of ice crystals in frozen samples were gradually increased, Ca2+-ATPase activity and total sulfhydryl content of myofibrillar protein extracted from frozen samples decreased significantly (P < 0.05), shear force and salt-soluble protein content of perch tissues were significantly decreased (P < 0.05), while expressible moisture were increased (P < 0.05). Therefore, −80 °C was recommended as the appropriate storage temperature for pre-frozen perch. Liquid nitrogen was not fit for long-term storage due to the destructive effect on fish quality.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Volume 92, June 2018, Pages 471-476
نویسندگان
, , , , , , , , , ,