The present study investigated the influence of different volumes of red hot pepper juice on the quality characteristics of fresh Pasta noodle. Supplementation with 0% (control), 2.5%, 5%, 7.5%, or 10% red hot pepper juice produced similar gelatinization characteristics of peak viscosity, temperature at peak viscosity, hot paste viscosity and numerical value of breakdown. However, increasing concentrations of red hot pepper juice produced progressively and significantly low cold paste viscosity and setback. The chromaticity of wet and cooked noodles was significantly lower in L value and significantly higher in +a and +b values with increasing volumes of red hot pepper juice. The texture of fresh noodles displayed no significant differences in hardness, adhesiveness and chewiness. The springiness and cohesiveness were lower and higher with the increase of added red hot pepper juice, respectively, but the differences just attained significance. For cooked noodles, adhesiveness, springiness, cohesiveness and chewiness tended to be higher with increasing volumes of red hot pepper juice, but again the differences just attained significance. Cooking characteristics of weight, volume, moisture absorptive power and turbidity decreased with increasing volumes of red hot pepper juice. Sensory characteristics of acceptability including appearance, color, flavor, taste, texture and overall-acceptability improved with increasing red hot pepper juice volume, in particular with 5% and 7.5%. Amylograph characteristics for initial paste temperature positively correlated with the texture characteristics for chewiness (p<0.05). Negatively correlated amylograph parameters included texture for springiness with for peak viscosity (p<0.01), texture for adhesiveness with hot paste viscosity (p<0.01) and breakdown with texture for adhesiveness, cohesiveness and chewiness (p<0.05).
Hot pepper has anti-obesity effects by controlling appetite and reducing blood fat level. To reduce the pungency of capsaicin, red or green hot pepper juice was fermented with Bacillus licheniformis SK1230. Fermented hot pepper juice was then added into yogurt at different ratios. The pH of yogurt added with hot pepper juice was decreased from 4.61 to 4.48. Titratable acidity and counts of lactic acid bacteria were increased with increasing amount of pepper juice added. However, the viscosity was decreased significantly compared to the control. On chromaticity test, when more pepper juice was added, $L^*-value$ was decreased whereas $a^*$- and $b^*$- values were increased significantly (p<0.05). The spectrum of antimicrobial activity of yogurt was slightly changed compared to using pepper juice. Total polyphenol contents and antioxidant activity were increased with increasing amount of pepper juice added. Stirred yogurt added with fermented red pepper juice at 3% or green pepper juice at 1% showed high scores in flavor, appearance, texture, and overall acceptance in sensory test. Yogurt added with fermented pepper juice with reduced pungency showed also good palatability during storage at $4^{\circ}C$. Yogurt with added hot pepper juice can be play an important role in functional food relative to anti-obesity.
Journal of the Korean Society of Food Science and Nutrition
/
v.28
no.1
/
pp.94-99
/
1999
This study was carried out to determine the inhibitory effect of juice of garlic, onion, ginger and red pepper against Staphylococcus aureus, Salmonella enteritidis, Vibrio parahaemolyticus and Enterobacter cloacae which are food born disease organisms. It was found that 1~2.5%(wt/vol.) garlic juice showed strong antimicrobial action against growth of all test bacteria at 1/20$\times$10-6 dilution. Especially 1% garlic juice completly inactivated Vibrio parahaemolyticus but approximately 71.9~88% of reduction at same concentration in other bacteria was occurred. 2.5% onion juice had 28.5% antimicrobial activity on Sal. enteritidis, but 50% reduction was occurred on St.aureus and V. parahaemolyticus at same concentration. Antibacterial activity of ginger juice was similar to that of onion juice. 2.5% ginger juice showed approximately 50% reduction on Sal. enteritidis and V.parahaemolyticus, but less antimicrobial activity was occured on St. aureus and E. cloacae. Red pepper juice showed the least antimicrobial activity on food born disease organism compared to that of other juices. 2.5% red pepper juice showed 11.3%, 18.7% and 8.1% reduction on St. aureus, Sal. enteritidis and V.parahaemolyticus, respectively.
Journal of the Korean Society of Food Science and Nutrition
/
v.24
no.3
/
pp.440-445
/
1995
The antimutagenic effects of juices from green pepper(GP), red pepper leaf(RPL), red pepper(RP) and sweet pepper(SP) were examined by the Ames method using Salmonella typhimurium TA100. The juice supernatants of GP, RPL and RP showed antimutagenic activities against afltoxin B1(AFB1) in Salmonella typhimurium TA 100. The juice supermatants of GP and RPL also exhibited the inhibitory effects(p<0.05) to the mutagenicities induced by N-methyl-N'-nitro-N-nitrosoguanidine(MNNG) and 4-nitro-quinoline-1-oxide(4-NQO). The juice of RP showed antimutagenic activities against indirect mutagen of AFB1, however, the activity was reduced at higher concentration(5.0%), furthermore, as the adding concentration of sample increased to 5.0%, it exhibited slight comutagenicith on direct mutagen of MNNG. Theantimutagenic activities of GP and RPL juices were reduced significantly after heating at 100℃ for 20min, supposing that the antimutagenic compound(s) in the juices were heat labile.
The purpose of this study was to examine the physico-chemical and sensory characteristics of Kakdugi made with mashed red pepper. With regard to the pH of the Kakdugi, those of the juice from Kakdugi with red pepper powder and of the liquid with mashed red pepper were the highest and lowest immediately after preparation, respectively, but thereafter both slightly decreased, but were similar after the fifth week. Generally, the total acidity of Kakdugi liquid was the higher than that of Kakdugi juice. With regard to the L value, that of the Kakdugi juice was higher than that of Kakdugi liquid and that of Kakdugi with mashed red pepper washigher than that of Kakdugi with red pepper powder. From the third week, the 'L' values of all samples generally decreased. The 'a' value of the Kakdugi liquid with mashed red pepper during fermentation was highest During early fermentation, the juice of Kakdugi with red pepper powder showed a higher value than that of Kakdugi with mashed red pepper, but conversely, from the second week that of Kakdugi with mashed red pepper was higher than that of Kakdugi with red pepper powder. The 'b' value of the juice from Kakdugi with red pepper powder was highest until the second week, but from the third week that of Kakdugi with mashed red pepper was highest. With respect to the organic acids contents, those of citric, quinic and malic acids decreased, but those of lactic and acetic acids increased during fermentation progression. In addition, the citric, lacticand malic acids contents of the Kakdugi with mashed red pepper werethe highest, whereas that of quinic acid of the Kakdugi with red pepper powder was the highest. From the forth week, the acetic acid content of the Kakdugi with mashed red pepper was further increased. As a result of the sensory test, Kakdugi with mashed red pepper showed significantly higher values with regard to redness and fresh flavor, but in overall acceptability in the QDA, appearance and taste in the acceptance test. Therefore, our results indicate that mashed red pepper particularly increased the 'a' value and organic acid contents of Kakdugi compared to those of red pepper powder, leading to an increased overall acceptability.
We investigated the physico-chemical and sensory characteristics of Kimchi made with red pepper that was washed and mashed. The pH of juice from Kimchi made with red pepper powder was the highest on the day of Kimchi preparation. In the case of Kimchi made with mashed red pepper, the pH of juice and liquid was lower than that of other samples. A similar decrease in pH of juice and liquid was observed up to the second week of fermentation, but the significant difference between both samples wasn't found. The total acidity of Kimchi with mashed red pepper was significantly increased during early fermentation, but was similar during the second week, compared with that of Kimchi with red pepper powder. From the third week of storage, both juice and liquid from Kimchi made with red pepper powder was relatively increased. L and a value of liquid was highest in the case of Kimchi made with mashed red pepper, but b value was lowest during fermentation. In the case of organic acids, acetic acid and lactic acid contents were increased in Kimchi made with mashed red pepper while fermentation progressed. In addition, citric acid content was constant up to the second week in Kimchi made with mashed red pepper but from the third week wasn't detected in both Kimchi made with mashed red pepper and Kimchi made with red pepper powder. In the case of QDA(Quantitative Descriptive Analysis) profiles, the values of Kimchi made with mashed red pepper were significantly higher than those of Kimchi made with red pepper powder in respect to redness, pungency and fresh flavor immediately after the preparation of Kimchi and during the second week of fermentation, but during the fifth week the values were higher in respect to redness and fresh flavor of Kimchi. Appearance and overall acceptability was remarkably increased in Kimchi made with mashed red pepper, compared with that of Kimchi made with red pepper powder immediately after pickling, during the second and the fifth week of fermentation. Therefore, these results indicate that mashed red pepper increased more citric acid content, L and a value of Kimchi in comparison with red pepper powder, resulting in the good effects on overall acceptability due to the significant increase of redness and fresh flavor.
This study was conducted to standardize ingredient ratio and preparation method of mafor traditional special kimchies in kyungsang province, korea. There were about 35 varieties of special kimchi in Kyungsang province. Six varieties of them such as burdock kimchi, wild leek kimchi, green thread onion kimchi, perilla leaf kimchi, Godulbaegi(Korean wild lettuce) kimchi, and red pepper leaf kimchi were selected, because they tasted good and the physiological functions of their main ingredients were excellent. The ingredient ratios of the selected special kimchi were standardized through surveying hereditary preparation of some families in kyungsang province and using the literatures including cooking books. The standardized ingredient ratio of the burdock kimchi was 15.1 pickled anchovy juice, 6.8 red pepper powder, 5.7 garlic, 2.2 ginger, 18.0 rice flour paste, 13.5 green thread onion, and 1.2 sesame seed in proportion to 100 of burdock. The standardized preparation step of the selected special kimchies was similar except some preprocessing methods of main ingredients. The diagonally cut-up burdock ws usually parboiled or soaked in salted water, then it was mixed with the other ingredients. Wild leek and green thread onion were usually pickled with salt or pickled anchovy juice. Sometimes the green thread onion pickled was dried in the sun. General preprocessing of perilla leaf, Korean wild lettuce, and red pepper leaf was soaking them in salted water for about 5-10 days. Sometimes red pepper leaf was heated with steam and dried in the sun, then it was mixed with the other ingredients.
The anti-adipogenic effect of dongchimi nano juice prepared using a nano-filtering process was investigated by measuring leptin and glycerol levels and the expression of a peroxisome proliferator-activated $receptor-\gamma\;(PPAR\gamma)$ gene as indicators of lipid accumulation or lipolysis. Red pepper powder, seeds of red pepper, garlic, and ginger were added in the preparation of dongchimi. Dongchimi was fermented to reach the optimal fermentation period, followed by nano-filtration in the range of $0.0005\sim0.1\;{\mu}m$. The lactic acid bacteria of dongchimi nano juice were removed completely by a nano-filtering process. Treatment of dongchimi nano juice induced glycerol release in the 3T3-L1 adipocytes and decreased the mRNA expression level of $PPAR\gamma$. These results suggested that dongchimi nano juice may enhance lipolysis and modulate adipogenesis in 3T3-L1 cells.
Journal of the Korean Society of Food Science and Nutrition
/
v.34
no.1
/
pp.126-130
/
2005
Manufacturing method and ingredient ratio for young radish kimchi (yulmoo kimchi) and young radish watery kimchi (yulmoo mool-kimchi) were standardized from literatures. Ingredients having frequency of use greater than 50% were only used in the standardization process. Green onion, red pepper, red pepper powder, garlic, ginger, and anchovy juice were included in young radish kimchi. Green pepper, red pepper, garlic, ginger, and starch were included in young radish watery kimchi. The standardized ingredients ratio of young radish kimchi (yulmoo kimchi) on young radish 100 g was as follows: green onion 8.0$\pm$3.8, crushed garlic 2.9$\pm$1.3, crushed ginger 1.6$\pm$0.7, red pepper 7.0$\pm$1.7, red pepper powder 4.2$\pm$1.2, and anchovy juice 3.7$\pm$0.5. The standardized ingredients ratio of young radish watery kimchi (yulmoo mool-kimchi) on added water 100 mL was as follows: young radish 50.6:$\pm$10.8, crushed garlic 3.0$\pm$0.7, crushed ginger $1.5\pm$0, green onion 3.3$\pm$1.3, green pepper 3.3$\pm$1.9, red pepper 2.4$\pm$1.3, and starch $1.5\pm$0.6.
To isolate of antagonistic bacteria to Phytophthora capsici, which cause Phytophthora blight in red pepper, 237 isolates of Pseudomonas spp. and 260 isolates of Bacillus spp. were screened in selective media from rhizosphere soils of red pepper at Kyongsan, Kyongju, Yongchon and Euisung in Kyongbuk. Among total 497 isolates, 8 isolates of Pseudomonas spp and 4 isolates of Bacillus spp. inhibited the mycelial growth of Phytophthora capsici above 50$\%$ . These antagonistic bacteria showed more inhibitory effect on TSA (tryptic soy agar) than V-8 juice agar. Four isolates, P0704, P1201, B1101 and B1901, showing the most prominent antagonistic activity were selected and identified as P. cepacia (P0704, P1201), B. polymyxa (B1101) and B. subtilis (B1901), respectively. Cell free filtrates of these isolates were shown to inhibit zoosporangia germination and mycelial growth of p. capsici indicating that these isolates turned out to be bacteria producing antifungal substances. As a result of antagonistic test to Phytophthora blight in green house p. cepacia (P0704) showed the highest antagonistic effect with 46.7$\%$ and the rest of them were in the range of 13.4$\%$ to 26.7$\%$ .
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