scholarly journals Establishing the optimal essential amino acid ratios in juveniles of Nile tilapia (Oreochromis niloticus) by the deletion method

2015 ◽  
Vol 22 (2) ◽  
pp. 435-443 ◽  
Author(s):  
A.F. Diógenes ◽  
J.B.K. Fernandes ◽  
J.C.P Dorigam ◽  
N.K. Sakomura ◽  
F.H.F. Rodrigues ◽  
...  
Keyword(s):  
Amino Acid ◽  
Oreochromis Niloticus ◽  
Essential Amino Acid ◽  
Nile Tilapia ◽  
Nile Tilapia Oreochromis Niloticus

scholarly journals Characteristics of acid and pepsin solubilized collagens from Nile tilapia (Oreochromis niloticus) scale

2019 ◽  
pp. 95 ◽  
Author(s):  
Phanat Kittiphattanabawon ◽  
Chodsana Sriket ◽  
Hideki Kishimura ◽  
Soottawat Benjakul
Keyword(s):  
Amino Acid ◽  
Zeta Potential ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Ftir Spectra ◽  
Fish Scale ◽  
Alternative Source ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Sds Page ◽  
Tilapia Scale

In Thailand, the production of tilapia is about 140,000 tons, which is the sixth tilapia production in the world. From the processing, the scale was generated as waste. To produce a value-added product, the production of collagen from tilapia scale could be an alternative. Generally, collagen from fish scale possesses a less fishy odor and flavor than that from fish bone and skin. From the results, the fish scale is an interesting alternative source for collagen extraction. The objectives of this study were to extract collagen from Nile tilapia (Oreochromis niloticus) scale from the production of frozen tilapia fillet as well as to study its properties. Extraction of acid (ASC) and pepsin soluble collagens (PSC) from Nile tilapia scale, as well as the determination of their yield, amino acid compositions, SDS-PAGE patterns, FTIR spectra, thermal denaturation temperature (Tmax) and zeta potential, was conducted. ASC and PSC had a yield of 0.77 and 0.71% based on dry basis), respectively. The major amino acid found in both collagens was glycine (322-332 residues/1000 residues). Also, they had a high amount of imino acid (199-205 residues/1000 residues). Based on SDS-PAGE pattern, both collagens were classified as type I collagen ((α1)2α2-heterotrimer). The similar FTIR spectra of both collagens were found. Their amide peaks had no shift in wavenumber. ASC and PSC had Tmax of 36.15 and 34.70 °C, respectively. From zeta potential analysis, ASC and PSC had the zero of net chart at pH 5.09 and 5.84, respectively. Based on the characteristics of the collagen, the scale could be an alternative source for collagen production, however their yield should be improved to serve as a potential source for further application.

scholarly journals The effect of hydrolyzate on amino acid levels in Nile tilapia (Oreochromis niloticus)

Food Research ◽  
2021 ◽  
Vol 5 (S3) ◽  
pp. 85-89
Author(s):  
Nuryanto ◽  
E. Chasanah ◽  
D.N. Afifah ◽  
M. Sulchan ◽  
P. Martosuyono ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Protein Hydrolysate ◽  
Nutrient Content ◽  
Fish Protein ◽  
Protease Enzyme ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Fish Protein Hydrolysate

Fish is one of the most important foods in the human diet because of its high nutritional quality. One of the potential local foodstuffs in Grobogan is Nile tilapia (Oreochromis niloticus). Nile tilapia has a high nutrient content, especially protein. To obtain better benefits from fish protein, it can be processed into fish protein hydrolysate (FPH) products. Fish protein hydrolysates (FPH) which contain a mixture of small protein or peptides and free amino acids are beneficial for children diet, in preventing and combating malnutrition problems through readily absorbed essential amino acids. This study aimed to analyze the amino acid profile of Nile tilapia and fish protein hydrolysate (FPH) from Nile tilapia. The treatments included processing Nile tilapia into hydrolysate and analyse amino acids of Nile tilapia before and after hydrolysate. The process of making FPH uses a local microbial protease enzyme from Bacillus licheniformis. Amino acids composition was analysed using an internal method developed by Saraswanti Indo Genetech laboratory (18- 5-17/MU/SMM-SIG, UPLC). Data were analysed using the paired t-test statistical test. The results showed there were significant differences in the rate of all amino acid profiles (p<0.05), except L-Aspartic Acid, L-Tyrosine and L-Histidine (p>0.05). From the research, it can be concluded hydrolysate processing has an effect on the increase of Lglutamic acid and L-lysine amino acid.

scholarly journals Identities among actin-encoding cDNAs of the Nile tilapia (Oreochromis niloticus) and other eukaryote species revealed by nucleotide and amino acid sequence analyses

2008 ◽  
Vol 31 (1 suppl) ◽  
pp. 325-356
Author(s):  
Andréia B. Poletto ◽  
Adriane P. Wasko ◽  
Claudio Oliveira ◽  
Alexandre Azevedo ◽  
Robson F. Carvalho ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Sequence ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Sequence Analyses ◽  
Nile Tilapia Oreochromis Niloticus
Sign in / Sign up

Export Citation Format

Share Document