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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal for Food Science of Animal Resources
Journal Basic Information
Journal DOI :
Korean Society for Food Science of Animal Resources
Editor in Chief :
Volume & Issues
Volume 34, Issue 6 - Dec 2014
Volume 34, Issue 5 - Oct 2014
Volume 34, Issue 4 - Aug 2014
Volume 34, Issue 3 - Jun 2014
Volume 34, Issue 2 - Apr 2014
Volume 34, Issue 1 - Feb 2014
Selecting the target year
Comparative Study on the Nutritional Value of Pidan and Salted Duck Egg
Ganesan, P. ; Kaewmanee, T. ; Benjakul, S. ; Baharin, B.S. ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 1~6
DOI : 10.5851/kosfa.2014.34.1.1
Pidan and salted duck eggs are of nutritional rich alternative duck egg products which are predominantly consumed in China, Thailand, South Korea and other Chinese migrated countries. Both eggs are rich in proteins, lipids, unsaturated fatty acids and minerals. A Pidan whole egg contains 13.1% of protein, 10.7% of fat, 2.25% of carbohydrate and 2.3% of ash, whereas the salted duck egg contains 14% of protein, 16.6% of fat, 4.1% of carbohydrate and 7.5% of ash. The fresh duck egg contains a range of 9.30-11.80% of protein, 11.40-13.52% of fat, 1.50-1.74% of sugar and 1.10-1.17% of ash. Proteins, lipids, and ash contents are found to be greatly enhanced during the pickling and salting process of pidan and salted duck eggs. However, the alkaline induced aggregation of pidan leads to degradation and subsequent generation of free peptides and amino acids. Very few amino acids are found to be lost during the pickling and storage. However, no such losses of amino acids are reported in salted duck eggs during the salting process of 14 d. Phospholipids and cholesterol contents are lower in pidan oil and salted duck egg yolk oil. Thus, the pidan and salted duck eggs are nutritionally rich alternatives of duck egg products which will benefit the human health during consumption.
Meat Consumption Culture in Ethiopia
Seleshe, Semeneh ; Jo, Cheorun ; Lee, Mooha ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 7~13
DOI : 10.5851/kosfa.2014.34.1.7
The consumption of animal flesh food in Ethiopia has associated with cultural practices. Meat plays pivotal and vital parts in special occasions and its cultural symbolic weight is markedly greater than that accorded to most other food. Processing and cooking of poultry is a gender based duty and has socio-cultural roles. Ethiopians are dependent on limited types of animals for meats due to the taboo associated culturally. Moreover, the consumption of meat and meat products has a very tidy association with religious beliefs, and are influenced by religions. The main religions of Ethiopia have their own peculiar doctrines of setting the feeding habits and customs of their followers. They influence meat products consumption through dictating the source animals that should be used or not be used for food, and scheduling the days of the years in periodical permeation and restriction of consumptions which in turn influences the pattern of meat consumption in the country. In Ethiopia, a cow or an ox is commonly butchered for the sole purpose of selling within the community. In special occasions, people have a cultural ceremony of slaughtering cow or ox and sharing among the group, called Kircha, which is a very common option of the people in rural area where access of meat is challenging frequently.
Effect of High Pressure on the Porcine Placenral Hydrolyzing Activity of Pepsin, Trypsin and Chymotrypsin
Chun, Ji-Yeon ; Jo, Yeon-Ji ; Min, Sang-Gi ; Hong, Geun-Pyo ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 14~19
DOI : 10.5851/kosfa.2014.34.1.14
This study investigated the effects of protease treatments (trypsin, chymotrypsin, and pepsin) under various pressure levels (0.1-300 MPa) for the characteristics of porcine placenta hydrolysates. According to gel electrophoretic patterns, the trypsin showed the best placental hydrolyzing activity followed by chymotrypsin, regardless of the pressure levels. In particular, the peptide bands of tryptic-digested hydrolysate were not shown regardless of applied pressure levels. The peptide bands of hydrolysate treated chymotrypsin showed gradual decreases in molecular weights (
) with increasing pressure levels. However, the pepsin did not show any evidences of placental hydrolysis even though the pressure levels were increased to 300 MPa. The gel permeation chromatography (GPC) profiles showed that the trypsin and pepsin had better placental hydrolyzing activities under high pressure (particularly at 200 MPa), with lower
distributions of the hydrolysates. Pepsin also tend to lower the
of peptides, while the major bands of hydrolysates being treated at 300 MPa were observed at more than 7,000 Da. There were some differences in amino acid compositions of the hydrolysates, nevertheless, the peptides were mainly composed of glycine (Gly), alanine (Ala), hydroxyproline (Hyp) and proline (Pro). Consequently, the results indicate that high pressure could enhance the placental hydrolyzing activities of the selected proteases and the optimum pressure levels at which the maximum protease activity is around 200 MPa.
Gastric Fluid and Heat Stress Response of Listeria monocytogenes Inoculated on Frankfurters Formulated with 10%, 20%, and 30% Fat Content
Kim, Hack-Youn ; Kim, Cheon-Jei ; Han, Sung Gu ; Lee, Sunah ; Choi, Kyoung-Hee ; Yoon, Yohan ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 20~25
DOI : 10.5851/kosfa.2014.34.1.20
This study evaluated the effects of frankfurter fat content on Listeria monocytogenes resistance to heat stress and gastric fluid, and the Caco-2 cell invasion efficiency of the pathogen. A 10-strain mixture of L. monocytogenes was inoculated on frankfurters formulated with 10%, 20%, and 30% fat content (10%: F10, 20%: F20, 30%: F30) and stored at
for 30 d. The samples were analyzed for L. monocytogenes resistance to heat stress and a simulated gastric fluid challenge. The total bacteria and L. monocytogenes survival rates were measured on tryptic soy agar plus 0.6% yeast extract and Palcam agar, respectively. L. monocytogenes colonies inoculated on F10, F20, and F30 samples were used for a Caco-2 cell invasion assay. In general, no obvious differences were observed between the survival rates of total bacteria and L. monocytogenes grown on different fat contents under heat stress and gastric fluid challenge. However, L. monocytogenes obtained from the F30 samples had a significantly higher Caco-2 cell invasion efficiency than those in the F10 and F20 samples (p<0.05). These results indicate that although high fat content in food may not be related to L. monocytogenes resistance to heat stress and gastric fluid, it may increase the Caco-2 cell invasion efficiency of the pathogen.
Effects of Egg Shell Membrane Hydrolysates on Anti-Inflammatory, Anti-Wrinkle, Anti-Microbial Activity and Moisture-Protection
Yoo, Jinhee ; Park, Kimoon ; Yoo, Youngji ; Kim, Jongkeun ; Yang, Heejin ; Shin, Youngjae ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 26~32
DOI : 10.5851/kosfa.2014.34.1.26
This study was conducted to examine the effects of eggshell membrane hydrolysates (ESMH) on the anti-inflammatory, anti-wrinkle, anti-microbial activity, and moisture-protection for cosmetic use. Whole ESMH (before fractionation), and fraction I (>10 kDa), fraction II (3-10 kDa), and fraction III (<3 kDa) of the hydrolysates were assessed in this experiment. As lipopolysaccharide (LPS) and IFN-
caused the inflammation on Raw264.7 cell, whole ESMH and fraction I showed to be effective in inhibiting the induction of cell inflammation depending on the concentration, and also showed outstanding effect to suppress the skin inflammation. Fraction I inhibited collagenase and elastase activities to a greater extent than the other fractions, while all fractions had antibiotic effects at concentrations of 10 mg/disc and 20 mg/disc. In addition, it showed the moisture protection effects of skin on the holding amount and losing amount of moisture in upper-inner arm of the human body with a relatively low loss rate in skin, which confirmed that the hydrolyzed fractions of ESM helps to form the superior protective layer of moisture. It was concluded that ESMH fractions with different molecular weights, especially the 10 kDa fraction, have anti-lipopolysaccharide, anti-IFN-
-induced inflammation, anti-collagenase and elastase activities, and thus can be used as a cosmetic agent to protect skin.
Effects of Pressure-shift Freezing on the Structural and Physical Properties of Gelatin Hydrogel Matrices
Kim, Byeongsoo ; Gil, Hyung Bae ; Min, Sang-Gi ; Lee, Si-Kyung ; Choi, Mi-Jung ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 33~39
DOI : 10.5851/kosfa.2014.34.1.33
This study investigates the effects of the gelatin concentration (10-40%, w/v), freezing temperatures (from
) and freezing methods on the structural and physical properties of gelatin matrices. To freeze gelatin, the pressure-shift freezing (PSF) is being applied at 0.1 (under atmospheric control), 50 and 100 MPa, respectively. The freezing point of gelatin solutions decrease with increasing gelatin concentrations, from
(10% gelatin) to
(40% gelatin), while the extent of supercooling did not show any specific trends. The rheological properties of the gelatin indicate that both the storage (G`) and loss (G") moduli were steady in the strain amplitude range of 0.1-10%. To characterize gelatin matrices formed by the various freezing methods, the ice crystal sizes which were being determined by the scanning electron microscopy (SEM) are affected by the gelatin concentrations. The ice crystal sizes are affected by gelatin concentrations and freezing temperature, while the size distributions of ice crystals depend on the freezing methods. Smaller ice crystals are being formed with PSF rather than under the atmospheric control where the freezing temperature is above
. Thus, the results of this study indicate that the PSF processing at a very low freezing temperature (
) offers a potential advantage over commercial atmospheric freezing points for the formation of small ice crystals.
Lipolytic Changes in Fermented Sausages Produced with Turkey Meat: Effects of Starter Culture and Heat Treatment
Karslioglu, Betul ; Cicek, Umran Ensoy ; Kolsaric, Nuray ; Candogan, Kezban ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 40~48
DOI : 10.5851/kosfa.2014.34.1.40
In this study, the effects of two different commercial starter culture mixes and processing methodologies (traditional and heat process) on the lipolytic changes of fermented sausages manufactured with turkey meat were evaluated during processing stages and storage. Free fatty acid (FFA) value increased with fermentation and during storage over 120 d in all fermented sausage groups produced with both processing methodologies (p<0.05). After drying stage, free fatty acid values of traditional style and heat processed fermented sausages were between 10.54-13.01% and 6.56-8.49%, respectively. Thiobarbituric acid (TBA) values of traditionally processed fermented sausages were between
, and TBA values of heat processed fermented sausages were in a range of
. Oleic and linoleic acids were predominant fatty acids in all fermented sausages. It was seen that fermented sausage groups produced with starter culture had lower TBA and FFA values in comparison with the control groups, and heat application inhibited the lipase enzyme activity and had an improving effect on lipid oxidation. As a result of these effects, heat processed fermented sausages had lower FFA and higher TBA values than the traditionally processed groups.
The Preventive Effects of Nanopowdered Peanut Sprout-added Caciocavallo Cheese on Collagen-induced Arthritic Mice
Kim, Dong-Hwi ; Chang, Yoon Hyuk ; Kwak, Hae-Soo ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 49~56
DOI : 10.5851/kosfa.2014.34.1.49
The present study was carried out to investigate the effects of nanopowdered peanut sprout-added Caciocavallo cheese (NPCC) on the prevention and treatment of rheumatoid arthritis in DBA/IJ mice immunized with type II collagen. After the induction of arthritis, the mice were being divided into five groups: (1) normal, no immunization; (2) CIA, collagen-induced arthritis; (3) MTX, collagen-induced arthritis treated with methotrexate (0.3 mg/kg body weight); (4) CC, collagen-induced arthritis treated with Caciocavallo cheese (0.6 g/d); (5) NPCC, collagen-induced arthritis treated with nanopowdered peanut sprout-added Caciocavallo cheese (0.6 g/d). Nanopowdered peanut sprout was ranged from 300 to 350 nm, while regular powdered peanut sprouts were ranged from 50 to
. The NPCC group had considerable reductions of clinical scores and paw thicknesses at the end of experiment as compared to the CIA group. In the serum analysis, the TNF-
, IL-6 and
levels in the NPCC group have decreased by 69.4, 75.9, 66.6, and 61.9%, respectively, when compared to the CIA group. The histological score and spleen index of the NPCC group were significantly lower than the CIA group. In conclusion, the feeding NPCC method could delay and/or prevent the rheumatoid arthritis in the collagen-induced arthritis mouse model. Based on this study, nanopowdered peanut sprouts could be applied to various functional cheeses.
Physicochemical and Sensory Properties of Nanopowdered Chitosan-Added Maribo Cheese during Ripening
Kim, Hee-Yeon ; Jeong, Yu-Tae ; Bae, In-Hue ; Kwak, Hae-Soo ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 57~64
DOI : 10.5851/kosfa.2014.34.1.57
Nanopowdered chitosan (NPC) has high biological activities, such as blood cholesterol lowering effect and antidiabetic activity. This study is carried out to determine the effects of nano-powdered chitosan-added Maribo cheese (NCMC) for the physicochemical properties and sensory analysis during its ripening at
for 6 mon. From the results, the moisture and fat levels are not significantly influenced from the addition of chitosan (p>0.05), but ash contents increased with increasing chitosan concentrations and the protein contents decreased with increasing chitosan concentrations. In the short-chain fatty acids analysis during the ripening, the total production is initially 13.79 ppm in 0.2% NCMC and 13.81 ppm in control, and their levels have steadily increased to 59.94 and 53.11 ppm, respectively. For the color levels, the
values decreased, while the
values significantly increased during ripening for all samples (p<0.05). In texture analysis, the hardness and gumminess of NCMC significantly decreased as compared to the control during ripening (p<0.05), while the cohesiveness, springiness and chewiness were not significantly different among the treatments (p>0.05). In sensory analysis, the butyric off-flavor and bitterness increased slightly with increasing concentrations of NCMC during ripening. The overall acceptability of 0.2% NCMC held the highest score amongst the samples during the ripening. From the results obtained, the 0.2% NCMC was preferred during the ripening and observed the possibility of functional cheese.
Selection and Characteristics of Fermented Salted Seafood (jeotgal)-Originated Strains with Excellent S-adenosyl-L-methionine (SAM) Production and Probiotics Efficacy
Kim, Min-Jeong ; Park, Sunhyun ; Lee, Ran-Sook ; Lim, Sang-Dong ; Kim, Hyo Jin ; Lee, Myung-Ki ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 65~72
DOI : 10.5851/kosfa.2014.34.1.65
This study is executed to develop probiotics which produce S-adenosyl-L-methionine (SAM), a methyl group donor of the 5-methyltetrahydrofolate methylation reaction within the animal cell. SAM is an essential substance for the synthesis, activation, and metabolism of hormones, neurotransmitters, nucleic acids, phospholipids, and cell membranes of animals. The SAM is also known as a nutritional supplement to improve brain functions of the human. In this study, the SAM-producing strains are identified in 18 types of salted fish, and then, the strains with excellent SAM productions are being identified, with 1 strain in the Enterococcus genus and 9 strains in the Bacillus genus. Strains with a large amount of SAM production include the lactic acid bacteria such as En. faecium and En. durans, En. sanguinicola, as well as various strains in the Bacillus genus. The SAM-overproducing strains show antibacterial activities with certain harmful microbes in addition to the weak acid resistances and strong bile resistances, indicating characteristics of probiotics. It is possible that the jeotgal-originated beneficial strains with overproducing SAM can be commercially utilized in order to manufacture SAM enriched foods.
Differentiation of Deboned Fresh Chicken Thigh Meat from the Frozen-Thawed One Processed with Different Deboning Conditions
Bae, Young Sik ; Lee, Jae Cheong ; Jung, Samooel ; Kim, Hyun-Joo ; Jeon, Seung Yeop ; Park, Do Hee ; Lee, Soo-Kee ; Jo, Cheorun ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 73~79
DOI : 10.5851/kosfa.2014.34.1.73
This study was performed to evaluate the quality characteristics of three deboned categories of chicken thigh meat: one which was slaughtered and deboned in the same plant (fresh); one which was slaughtered, deboned, frozen, and thawed in the same plant (frozen-thawed); and the last which was slaughtered in a plant, deboned in a different plant, but then transferred to the original plant (fresh-outside). Surface color, drip loss, 2-thiobarbituric acid reactive substances (TBARS) value, sensory evaluation, and total aerobic bacterial counts of the chicken samples were determined. Moreover, the torrymeter was used to measure the differences in freshness of the chicken meat. The surface color and the TBARS values did not show significant differences among the three categories. However, the total aerobic bacterial counts of fresh-outside and frozen-thawed chicken meat were significantly higher than the fresh chicken meat on the first storage day, and the drip loss of frozen-thawed chicken meat was significantly higher than the fresh-outside and fresh chicken meat. In addition, the sensory evaluation of frozen-thawed chicken meat was significantly lower than the fresh-outside and fresh chicken meat. Torrymeter values were higher in fresh chicken meat than fresh-outside and frozen-thawed chicken meat during the storage period. These results indicate that the quality of frozen-thawed chicken meat is comparatively lower than the fresh chicken meat, and the torrymeter values can accurately differentiate the fresh-outside and frozen-thawed chicken meat from the fresh ones.
Effects of Temperature and Packaging on the Growth Kinetics of Clostridium perfringens in Ready-to-eat Jokbal (Pig`s Trotters)
Park, Hee-Jin ; Na, Yu-Jin ; Cho, Joon-Il ; Lee, Soon-Ho ; Yoon, Ki-Sun ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 80~87
DOI : 10.5851/kosfa.2014.34.1.80
Ready-to-eat (RTE) Jokbal (Pig`s trotter), which consists of pig`s feet cooked in soy sauce and various spices, is a very popular and widely sold in Korean retail markets. Commercially, the anaerobically packed Jokbal have also become a popular RTE food in several convenience stores. This study evaluates the effects of storage temperature and packaging methods for the growth of C. perfringens in Jokbal. Growth kinetic parameters of C. perfringens in aerobically and anaerobically packed Jokbals are determined at each temperature by the modified Gompertz equation. The lag time, specific growth rate, and maximum population density of C. perfringens are being analyzed as a function of temperature and packaging method. The minimum growth temperature of C. perfringens in aerobically and anaerobically packed Jokbal is
, respectively. The C. perfringens in Jokbal did not grow under conditions of over
regardless of the packaging methods, indicating that the holding temperature of Jokbal in markets must be maintained at above
. Growth of C. perfringens in anaerobically packed Jokbal is faster than in aerobically packed Jokbal when stored under the same conditions. This indicates that there are a higher risks associated with C. perfringens for anaerobically packed meat products.
Goat Milk Yoghurt by Using Lacto-B Culture Modulates the Production of Tumor Necrosis Factor-Alpha and Interleukin-10 in Malnourished Rats
Nurliyani, Nurliyani ; Kandarina, B.J. Istiti ; Kusuma, Sari ; Trisnasari, Yunita Dewi ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 88~98
DOI : 10.5851/kosfa.2014.34.1.88
Total spleen lymphocytes, lymphocyte proliferation, tumor necrosis factor-
), and interleukin-10 (IL-10) in spleen lymphocyte culture were studied in malnourished Wistar rats fed with goat milk yoghurt. Malnourished rats were created by using standard feed restriction as much as 50% of normal rats for 21 d. Goat milk yoghurt containing three types of microorganism e.g., Lactobacillus acidophilus, Sterptococcus thermophilus and Bifidobacterium longum derived from Lacto-B culture in powder form. After 21 d, the rats continued to receive restricted feeding and supplemented with goat milk yoghurt for 7 d. Total splenocytes were counted by hemocytometer. Splenocytes proliferation was expressed as stimulation index, whereas the TNF-
and IL-10 of spleen lymphocyte culture were measured by ELISA technique. The total number of splenocytes and stimulation index of splenocytes in moderate malnourished and normal rats supplemented with goat milk yoghurt was not significantly different. The level of TNF-
in the rat supplemented with goat milk yoghurt was lower (p<0.05) than the control group, whereas the level of IL-10 in the rat supplemented with goat milk yoghurt was higher (p<0.05) than the control group. In conclusion, goat milk yoghurt supplementation in malnourished rats could decrease TNF-
as a representation of the pro-inflammatory cytokine, while it increases IL-10 as a representation of the anti-inflammatory cytokine.
Physicochemical Characteristics of Beef Jerky Cured with Salted-fermented Anchovy and Shrimp
Kim, Gap-Don ; Go, Gwang-Woong ; Lim, Hyun-Jung ; Jung, Eun-Young ; Seo, Hyun-Woo ; Jeong, Jin-Yeon ; Joo, Seon-Tea ; Yang, Han-Sul ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 99~105
DOI : 10.5851/kosfa.2014.34.1.99
The aim of this study is to evaluate the availability of salted and fermented fish (SFF) including salted and fermented anchovy (SFA) and shrimp (SFS) as a marinade of beef jerky. In curing solutions, half (SFA 1 and SFS 1) or whole (SFA 2 and SFS 2) salt-water was replaced with SFF juices. Higher water activity (
) was found in the beef jerky cured with SFFs than the control (C) (p<0.05). The SFFs had the effect of causing a decrease in hardness and an increase in cohesiveness (p<0.05). Among the treatment samples, springiness was the highest in SFA2 and SFS2 (p<0.05) and the lowest values of Warner-Bratzler shear force were found in SFA1 and SFA2 (p<0.05). The SFFs also had the effect of increasing the flavor of the sensory properties; however, color measurements from both the instrumental surface color (
, chroma, and hue angle) and color of sensory evaluation were decreased by addition of SFFs (p<0.05). Therefore, we conclude the SFFs can improve the texture and sensory properties of the beef jerky. In particular, the SFS is a good ingredient for the curing solution. However, studies are still needed on improving the
, pH, and surface color of the beef jerky to apply the SFFs for making beef jerky.
Physiological Characteristics and Production of Folic Acid of Lactobacillus plantarum JA71 Isolated from Jeotgal, a Traditional Korean Fermented Seafood
Park, Sun-Young ; Do, Jeong-Ryong ; Kim, Young-Jin ; Kim, Kee-Sung ; Lim, Sang-Dong ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 106~114
DOI : 10.5851/kosfa.2014.34.1.106
Folic acid, one of the B group of vitamins, is an essential substance for maintaining the functions of the nervous system, and is also known to decrease the level of homocysteine in plasma. Homocysteine influences the lowering of the cognitive function in humans, and especially in elderly people. In order to determine the strains with a strong capacity to produce folic acid, 190 bacteria were isolated from various kinds of jeotgal and chungkuk-jang. In our test experiment, JA71 was found to contain
of folic acid after 24 h of incubation in an MRS broth. This showed that JA71 has the highest folic acid production ability compared to the other lactic acid bacteria that were isolated. JA71 was identified as Lactobacillus plantarum by the result of API carbohydrate fermentation pattern and 16s rDNA sequence. JA71 was investigated for its physiological characteristics. The optimum growth temperature of JA71 was
, and the cultures took 12 h to reach pH 4.4. JA71 proved more sensitive to bacitracin when compared with fifteen different antibiotics, and showed most resistance to neomycin and vancomycin. Moreover, it was comparatively tolerant of bile juice and acid, and displayed resistance to Escherichia coli, Salmonella Typhimurium, and Staphylococcus aureus with restraint rates of 60.4%, 96.7%, and 76.2%, respectively. These results demonstrate that JA71 could be an excellent strain for application to functional products.
Effects of Water or Brine Immersion Thawing Combined with Ultrasound on Quality Attributes of Frozen Pork Loin
Hong, Geun-Pyo ; Chun, Ji-Yeon ; Jo, Yeon-Ji ; Choi, Mi-Jung ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 115~121
DOI : 10.5851/kosfa.2014.34.1.115
This study explored the effects of water or brine (2% NaCl, w/v) immersion thawing combined with ultrasound treatment (40 kHz, 150 W) on the quality characteristics of pork. Ultrasound treatment of pork was conducted in two cold media (at
), water and 2% (w/v) brine, respectively. Because the ultrasound treatment caused temperature increase in the media from
, the qualities of pork thawed by ultrasound were compared with those thawed by immersion either in water or brine where the temperature was being maintained at either
(low temperature control) or
(high temperature control). The ultrasound treatment resulted in rapid thawing of pork where the thawing rate was similar to those thawed in the
media. For quality characteristics, ultrasound-treated pork in brine had an advantage of less cooking losses when comparing to the control. In particular, ultrasound treatment in brine exhibited the lowest shear force (or highest tenderness) among the freezing/thawing treatments. Although the ultrasound processing in brine caused discoloration of the pork, this thawing technique had potential to be applied as a commercial thawing technology for frozen foods.
Effects of Chicken Breast Meat on Quality Properties of Mackerel (Scomber japonicus) Sausage
Kim, Koth-Bong-Woo-Ri ; Pak, Won-Min ; Kang, Ja-Eun ; Park, Hong-Min ; Kim, Bo-Ram ; Ahn, Dong-Hyun ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 122~126
DOI : 10.5851/kosfa.2014.34.1.122
This study was performed to evaluate the effects of chicken breast meat on the quality of mackerel sausages. The mackerel sausages were manufactured by additions of 5%, 7%, and 10% of chicken breast meat. The lightness of mackerel sausages showed no significant differences between the control and addition groups. The redness increased in a dose-dependent manner, but the yellowness decreased significantly with the addition of 7% chicken breast meat (p<0.05). The whiteness value of mackerel sausage added with 7% chicken breast meat was significantly higher than those of the other groups (p<0.05). In texture analysis, the hardness and adhesiveness of the mackerel sausage added with 5% of chicken breast meat showed no significant differences as compared to the control. However, the mackerel sausages added with 7% and 10% of chicken breast meat showed a dose-dependent decrease. The gel strength of the mackerel sausage added with 5% chicken breast meat was not significantly different from the control, but the addition of 7% and 10% chicken breast meat reduced the gel strength of the mackerel sausage. In sensory evaluation, the mackerel sausages prepared with chicken breast meat have higher scores in smell, taste, texture, hardness, chewiness, and overall preference as compared to the no addition group. Therefore, these results suggest that the optimal condition for improving the properties within mackerel sausages was 5% addition of chicken breast meat.
Optimizing Carnosine Containing Extract Preparation from Chicken Breast for Anti-glycating agents
Kim, Seung-Ki ; Kwon, Dodan ; Kwon, Da-Ae ; Paik, In Kee ; Auh, Joong-Hyuck ;
Korean Journal for Food Science of Animal Resources, volume 34, issue 1, 2014, Pages 127~132
DOI : 10.5851/kosfa.2014.34.1.127
Optimization of carnosine and anserine extraction from chicken breast was performed using response surface methodology (RSM) to obtain the maximized physiological activities for anti-glycation and anti-oxidation. The optimum extraction conditions were water extraction for 1.6 h in the case of the 20-wk laying hen muscle and water extraction for 2.12 h in the case of 90-wk laying hen muscle. Higher carnosine and anserine contents were measured in the 20-wk laying hen muscle, along with higher physiological activities, which increased in direct proportion with the dipeptide contents. The extracts prepared from the 20-wk laying hen under optimum conditions showed 57% inhibition of advanced glycated end-product formation, 64% inhibition of lipid peroxidation, and 61% of DPPH radical scavenging effects. On the other hand, 52% inhibition of AGE formation, 62% inhibition of lipid peroxidation, and 53% of DPPH radical scavenging effect were demonstrated within the 90-wk laying hen. In addition, the ratio of carnosine was a key indicator for the physiological activities of the extracts.