• Title/Summary/Keyword: flee amino acids

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Nutritional Characteristics of Juvenile Black Rockfish Sebastes schlegeli Fed a Diet of Fig Leaf Extract (무화과 잎 추출물 첨가 사료를 급이한 조피볼락(Sebastes schlegeli)치어의 영양학적 특성)

  • Hwang, Jae-Ho;Lee, Si-Woo;Rha, Sung-Ju;Han, Kyeong-Ho;Kim, Seon-Jae
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.45 no.6
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    • pp.570-578
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    • 2012
  • The present study investigated the effect of diets supplemented with different levels (0, 1, 3, and 5 %) of fig leaf ethanol extract (FLEE) on the nutritional composition of black rockfish Sebastes schlegeli. Fish ($10.05{\pm}0.44g$) were fed to apparent satiation twice daily for 8 weeks. Adding FLEE decreased crude lipid levels and increased crude protein and ash. Among the three organic acids in the whole body of black rockfish, lactic acid was predominant, followed by citric acid and oxalic acid. Five free sugars were found in all groups. Fucose and glucose were the dominant free sugars in the FLEE-added group. The abundant fatty acids in the FLEE-added group were C16:0, C18:1-cis (n9), and C22:6n-3. The major amino acids in the samples were glutamic acid, aspartic acid, glycine, leucine, alanine, lysine, and arginine. The abundant free amino acids in the FLEE-added group were taurine, glutamic acid, alanine, leucine, and arginine.

Changes of the Volatile Basic Nitrogen and Free Amino Acids according to the Fermentation of Low Salt Fermented Squid (저염 오징어 젓갈의 숙성에 따른 휘발성염기질소 및 유리 아미노산의 변화)

  • 오성천;조정순;남혜영
    • Korean journal of food and cookery science
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    • v.16 no.2
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    • pp.173-181
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    • 2000
  • To understand the influences of NaCl concentration and fermentation temperature on the ripening process of low salt fermented squids, squid with 5%, 7% and 9% salt were fermented at 10$\^{C}$ and 20$\^{C}$. The result of the changes of volatile basic nitrogen and free amino acids during the fermentation of squids are as follows. As a result of the observations on the changes of physicochemical components during the fermentation process of the low-salted squids, all the pH, VBN and NH$_2$-N were increased and therefore the fermentation was promoted. Considering the changes of net components according to the fermentation, ATP (Adenosine triphosphate) and ADP (Adenosine diphosphate) lost and could not be detected among the nucleotides and their related compounds. Besides, AMP (Adenosine monophosphate) existed only in the initial stage and inosine, hypoxanthine were the main components of nucleotides and their related compounds. Nonvolatile organic acids are mainly lactic acid, acetic acid and also they occupied more than 80%. Seeing the composition of free amino acid, the major amino acids are proline, arginine, methionine, alanine and glutamic acid.

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Changes in the levels of Water Soluble protein and flee Amino Acids in Brown Rice Germinated in a Chitosan/Glutamic Acid Solution (키토산과 글루탐산의 병용처리에 따른 발아현미 중의 수용성 단백질 및 유리 아미노산 함량변화)

  • 오석흥;이인태;박기범;김병주
    • KSBB Journal
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    • v.17 no.6
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    • pp.515-519
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    • 2002
  • The changes in the levels of total soluble protein and some free amino acids were investigated in germinating brown rice. Nongerminated (N) brown rice was germinated for 72 hrs by applying following solutions: 1) distilled water (W), 2) 50 ppm chitosan in 5 mM lactic acid (CL), and 4) 50 ppm chitosan in 5 mM glutamic acid (CG). The level of total soluble protein was higher in the N extract than those of W, CL and CG. Alanine levels were enhanced and aspartic acid levels were decreased significantly in the germinated brown rice, highest increases of alanine were found in the CG germinated brown rice. The levels of serine, decreased during germination in solutions W and CL, were increased significantly by germination in CG solution. The levels of essential amino acids, such as Iysine, isoleucine and methionine were also increased significantly by germination in CG solution. Our results show that the germination of brown rice with CG solution can significantly increase the levels of alanine and some other essential amino acids and can restore the serine level.