|
KMID : 1024620130330060763
|
|
Food Science of Animal Resources
2013 Volume.33 No. 6 p.763 ~ p.771
|
|
|
Temperature Changes during Freezing and Effect of Physicochemical Properties after Thawing on Meat by Air Blast and Magnetic Resonance Quick Freezing
|
|
Kim Young-Boong
Woo Sung-Min
Jeong Ji-Yun
Ku Su-Kyung
Jeong Jin-Woong
Kum Jun-Seok
Kim Eun-Mi
|
|
|
Abstract
|
|
|
|
This study was carried out to investigate the effects of various temperatures of electro-magnetic resonance and air blast freezing methods on the physicochemical quality of meat. Beef (loin and round), pork (belly and ham) and chicken (breast and leg) were purchased at a commercial market, and the meat was frozen using three methods: air blast freezing (-20℃ and -45℃) and electro-magnetic resonance quick freezing. Changes in the physicochemical properties of meat were analyzed by drip loss, cooking loss, water holding capacity (WHC) and proximate compositions. In comparison, regardless of the animal species and cuts of meat, electro-magnetic resonance quick freezing (2 h) resulted in a completely frozen product in a much shorter time than -20℃ and -45℃ air blast freezing (24 h and 8 h, respectively). Drip loss of loin which had underwent electro-magnetic resonance quick freezing were significantly (p<0.05) lower than those of the other two treatments, but cooking loss and water holding capacity were the highest at 43.7% and 60.7%, respectively (p<0.05). Characteristics such as crude protein, crude fat and moisture compositions showed significant differences, depending on the cuts and freezing methods (p<0.05). The fat composition of electro-magnetic resonance quick frozen loin and round were significantly low (p<0.05). However, moisture content was the highest compared to other freezing methods, as 67.1% and 71.9%, respectively (p<0.05). Electro-magnetic resonance quick freezing was an appropriate way to reduce the deterioration of meat quality due to freezing, and the drip loss was least for the part with low moisture, low protein, and high fat.
|
|
|
KEYWORD
|
|
|
electro-magnetic resonance, air blast, freezing, meat, temperature, quality
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|