For the purpose of making a functional and stable yogurt, new type yogurt were prepared from 12% whole milk and 2% skim milk added hot-water extracted from sea tangle. The yogurt product were evaluated for acid production(pH, titratable acidity), number of viable cell, viscosity, degree of curd sedimentation, quality-keeping property and sensory property. By addition of hot-water extracted from 0.5% sea tangle, the titratable acidity of yogurt(1.89%) was higher than that of yogurt not added hot-water extract of sea tangle(1.53%). The propagation of lactic acid bacteria was stimulated by adding hot-water extracted from 0.5% sea tangle, and the number of viable cells were about 1.4${\times}$10$\^$9/CFU/$m\ell$. On the other hand, the number of viable cells in control were 4.4${\times}$10$\^$8/CFU/$m\ell$. Viscosity of yogurt made from adding hot-water extracted from 0.5% sea tangle(25 CPS) was higher than that of yogurt with only milk(22 CPS). When yogurt made from adding hot-water extracted from sea tangle was kept at 7$^{\circ}C$ for 15 days, its quality-keeping was relatively good. The sedimentation of curd was repressed a little by adding hot-water extracted from 0.5% and 0.1% sea tangle. The overall sensory score of yogurt made from adding hot-water extracted from 1% sea tangle was the best of tested yogurt.
This study was performed to evaluate and compare the antioxidant and antimicrobial activities of various berry juices (cherry, grape, blueberry, aronia, cranberry, and raspberry). The cherry, aronia, and cranberry juices included higher levels of total polyphenol than the other berry juices. The DPPH radical scavenging activity of various berry juices increased according to the juices concentration. The scavenging activity of DPPH radicals by the aronia, cranberry, and raspberry juices was higher than those of other samples and was in the following order: aronia > cranberry > raspberry. The FRAP values of 100% aronia juice was the highest among the samples, which was more than five times higher than grape juice at a concentration of 25%. The cranberry and raspberry juices exhibited a strong inhibitory effect against important food-borne bacteria, and in general, the berry juices inhibited the growth of Gram-negative bacteria more than that of Gram-positive bacteria. The cranberry and raspberry juices exhibited high antimicrobial activities against important food-borne bacteria at a concentration of 100% and 75%, however, they did not affect food-borne bacteria at a concentration below 10%. These results suggest that aronia, cranberry, and raspberry may be used effectively as natural additives and as functional foods due to their high antioxidant and antimicrobial activities.
This study was performed to evaluate functional and textural properties of low-salt pork meat products treated with transglutaminase (TG) using sodium polyphosphate (STPP) and sodium pyrophosphate (SPP). In experiment 1, lightness and yellowness decreased (p>0.05), but moisture content and cooking yield (%) increased with increased salt level (p<0.05). Based on these results, at least 1.0% salt was required to manufacture comminuted pork meat without quality defects. The effect of STPP and SPP with TG in low-salt (1%) pork comminuted shoulder meat products was evaluated in experiment 2. pH values increased with the addition of phosphate (p<0.05), with pH values in treatments containing TG and PP alone or in combination being higher than those with STPP alone (p<0.05). Cooking yield of treatments with TG and phosphates was higher than those without phosphates, but lower than CTL (1.5% salt and 0.4% STPP; p<0.05). Springiness of pork comminuted meat containing SPP was higher than those of CTL (p<0.05). These results indicate that low-salt meat products can be produced by the combination of TG and phosphate either alone or in combination to maintain cooking yield and textural properties.
The immunostimulating activities of the hot-water extract from Codonopsis lanceolata were investigated. The proliferation of BSA-primed lymph node cells was enhanced between 2.8- to 11.2-fold compare to control, when cultured with 1 to $25\;{\mu}g/mL$ of C. lanceolata extract. It showed strong immunopotentiating activity than ginseng extract and as remarkable as Bifidobacterium adolescentis M101-4 known as a positive immunostimulator. The proliferation of splenocytes and Peyer's patch cells was enhanced between 4.2- to 13.8-fold and 3.1- to 6.9-fold, respectively, when cultured with 1 to 25 $25\;{\mu}g/mL$ of C. lanceolata extract. It enhanced the production of cytokines such as $TNF-{\alpha}$ and IL-6 in the culture of RAW 264.7 macrophage cells. In the culture of lipopolysaccharide-stimulated RAW 264.7 cells, production of cytokines was as compared to controls. In unstimulated RAW 264.7 cells, both $TNF-{\alpha}$ and IL-6 production were enhanced between 12.6- to 67.8-fold and 2.8- to 10.1-fold, respectively. The hot-water extract from C. lanceolata is expected to be a safe immunopotentiator to maintain the host immunity and develop a physiologically functional food.
A study was conducted to investigate the effect of ACAMS(Autoclaved-cooled amylomaize VII) and ACNMS(Autoclaved-cooled normal maize starch) containing resistant starch(RS) on ASW (Australian wheat flour) rheology and noodle quality. The water absorption in farinograph increased with the addition of ACAMS and ACNMS, but the dough stability decreased with the addition. The ACNMS added flours showed the highest initial pasting temperature and the lowest peak viscosity in RVA. The addition of ACAMS and ACNMS were not effective on the weight and volume of cooked noodles during cooking time for 5 min. However, as the cooking time increased, noodle weight and volume were the highest in control(no RS added flour) and the lowest in ACNMS added flours. Noodle texture was evaluated using rheometer. The hardness of RS(ACAMS, ACNMS) added noodles was higher than that of control. Cohesiveness was significantly different between control and ACAMS added noodles, but the cohesiveness of ACNMS added noodles was similar to other noodles. The elasticity of ACNMS added noodles in sensory test was lower than that of control but the smoothness and overall acceptibility were higher.
Soymilk residue was washed separately with acetone, ethanol, isopropyl alcohol and n-hexane, and then dried at $45^{\circ}C$. The dried residues were evaluated for drying rate, color and chemical and functional properties. Washing with acetone resulted in the shortest drying time (1hr) and the highest in protein content (48.8%) and in Hunter 'L' value. The dried residues after treatment with acetone and alcohols showed relatively high values of 4.3-4.7g/g and 8.5-8.7g/g in oil and water absorption, respectively. Addition of the acetone treated residue to wheat flour at a level of 10% affected little in Amylograph viscosity while those treated with other solvents caused a significant decrease in the viscosity.
The rh-BMP-4 is a subgroup of TGF-${\beta}$ superfamily. The application of rh-BMP in alveolar bony defect was reported to new alveolar bone and new cementum formation. For minimized complications following tooth replantation, a operator must replant a tooth fast at the pertinent position. This study was to evaluate the effect of rh-BMP-4 on periodontal regeneration and root resorption following tooth replantation in rats. The 50 Sprague-Dawley rats weighting about 130gm were used in this study. The animals were divided into three groups. Group 1 ; immediate replantation after extraction : Group 2 ; replantation stored teeth extraction of first molar, the removal of periodontal ligament with collagenase, and etching with citric acid : Group 3 ; replantation stored teeth with treated rh-BMP-4 in mesial root. Experimental animals were sacrificed 3, 7, 14 days after replantation by heart infusion. The maxillae were removed, fixed, demineralized, dehydrated, infiltrated and embedded with JB-4 mixture. For light microscopic observation, 5 micron sections were cut and stained with toluidine blue. The results of this study were as follows : 1. After experimental 3 days, all groups were observed dead space between periodontum and root. 2. After experimental 7 days, group 1 and group 3 were observed filling periodontal fibers between alveolar bone and root but group 2 were not. 3. After experimental 7 days, group 3 were observed appearance of attached cementoblast like cell on root surface. Group 1 were observed regular arrangement of fibroblasts and collagen fibers at ${\times}400$ observation. 4. After experimental 14 days, all group were observed filling periodontal fibers between alveolar bone and root. Group 1 were observed normal arrangement of periodontal fibers. Group 3 were observed less abnormal arrangement of periodontal fibers. Group 2 were not observed functional normal arrangement of periodontal fibers. 5. After experimental 14 days, group 2 and 3 were observed several root resorption and irregular root surface but group 1 were not. These results suggest that the rh-BMP-4 can stimulate cementogenesis and enhance to attach collagen fibers.
Journal of the Korean Society of Food Science and Nutrition
/
v.33
no.5
/
pp.778-784
/
2004
This study was conducted to investigate the application possibility of leaf and stem extract (LSE) from the mixture of leaf and stem of Panax ginseng. This study measured the general nutritional composition, aminoacid minerals contents and fatty acid composition of LSE. We conducted analysis of the ginsenoside content by HPLC and the cell cytotoxicity tests in normal liver and kidney cells. The approximate composition of LSE was 2.51% of carbohydrate 0.53% of crude ash,0.20% of crude fat and 0.15% of crude protein, respectively. LSE contained 102.56 mg/100 g of K ion and high contents of acidic amino acids such as glutamic acid and aspartic acid. In addition to this, it contained all essential amino acids. The major compositions of fatty acids were 39.99% of palmitic acid 14.96% of linoleic acid, 13.31% of docosatetranoic acid and 12.91% of linolenic acid, The total ginsenoside was 0.82 mg/mL, and ratio of PD/PT was 0.68. Negative effects were not found from the results of the cell toxicity respection. These results imply that leaf and stem of Panax gineng could be used as possible food resources and functional food material and feed stuff.
The purpose of this study was to find out the recent trend of high-tech AAC intervention studies for individuals with disabilities. Electronic database searches were completed to identify studies published between 2009 and 2016. 46 studies were identified for inclusion in this review. The studies were classified as participants, research design, intervention settings, independent variables, dependent variables, communication skills by High-tech device, type of high-tech AAC device. Across these studies, intervention was provided to total of 126 participants. Most participants are aged 6-11 and the most common diagnosis was autistic spectrum disorder. Most common study designs were multiple probe design and multiple treatment design. The majority of studies implemented interventions in a special education school(classroom) setting. The majority of studies implemented interventions to compare the effect of high-tech and low-tech AAC device interventions. The majority of targeted behavioral outcomes were communication skills. Tablet PC was the most frequently used for intervention in both domestic and foreign studies. The most common softwares were 'My talky' in domestic studies and 'Proloquo2Go' in foreign studies. The synthesis of evidence describing views of users and providers and the implementation of high-tech AAC device can provide valuable data to inform intervention studies and functional outcome measures. Suggestions for the future research are discussed.
Korean Native Pig (KNP) has a uniform black coat color, excellent meat quality, white colored fat, solid fat structure and good marbling. However, its growth performance is low, while the western origin Yorkshire pig has high growth performance. To take advantage of the unique performance of the two pig breeds, we raised crossbreeds (KNP ${\times}$ Yorkshire to make use of the heterotic effect. We then analyzed the liver transcriptome as it plays an important role in fat metabolism. We sampled at two stages: 10 weeks and at 26 weeks. The stages were chosen to correspond to the change in feeding system. A total of 16 pigs (8 from each stage) were sampled and RNA sequencing was performed. The reads were mapped to the reference genome and differential expression analysis was performed with edgeR package. A total of 324 genes were found to be significantly differentially expressed (${\left|log2FC\right|}$ > 1 & q < 0.01), out of which 180 genes were up-regulated and 144 genes were down-regulated. Principal Component Analysis (PCA) showed that the samples clustered according to stages. Functional annotation of significant DEGs (differentially expressed genes) showed that GO terms such as DNA replication, cell division, protein phosphorylation, regulation of signal transduction by p53 class mediator, ribosome, focal adhesion, DNA helicase activity, protein kinase activity etc. were enriched. KEGG pathway analysis showed that the DEGs functioned in cell cycle, Ras signaling pathway, p53 signaling pathway, MAPK signaling pathway etc. Twenty-nine transcripts were also part of the DEGs, these were predominantly Cys2His2-like fold group (C2H2) family of zinc fingers. A protein-protein interaction (PPI) network analysis showed that there were three highly interconnected clusters, suggesting an enrichment of genes with similar biological function. This study presents the first report of liver tissue specific gene regulation in a cross-bred Korean pig.
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