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Journal of Environmental BiologypISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP |
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Abstract - Issue Sep 2010, 31 (5) BackProduction
of valued materials from squid viscera by subcritical
water hydrolysis Md. 1Institute of Food Science, Faculty of Food Science and
Biotechnology, Daeyeon-3dong, Nam-Gu, Busan - 608 737, 2Research Faculty of Fisheries Sciences, (Received: Abstract: Subcritical
water hydrolysis was carried out to produce valued materials from squid
viscera, the waste product of fish processing industries. The reaction
temperatures for hydrolysis of raw and deoiled squid
viscera were maintained from180 to 280oC for 5 min. The ratio of
material to water for hydrolysis was 1:50. Most of the proteins from deoiled squid viscera were recovered at high temperature.
The protein yield in raw squid viscera hydrolyzate
decreased with the rise of temperature. The reducing sugar yield was higher at
high temperature in subcritical water hydrolysis of
both raw and deoiled squid viscera. The highest yield
of amino acids in raw and deoiled squid viscera hydrolyzates were 233.25?3.25 and 533.78?4.13 mg g-1
at 180 and 280oC, respectively. Most amino acids attained highest
yield at the reaction temperature range of 180-220oC and 260-280oC
for raw and deoiled samples, respectively. The
recovery of amino acids from deoiled squid viscera
was about 1.5 times higher than that of raw squid viscera.?? Key
words: Subcritical
water hydrolysis, Squid viscera, Amino acid, Valued
materials ?????? PDF of full length paper
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