The purpose of this study was to investigate the effects of the sausage containing mulberry leaf(0.04%, 0.08%) and persimmon leaf powder(0.04%, 0.08%) on lipid oxidation(Thiobarbituric Acid Reactive Substances, TBARS), nitrite, volatile basic nitrogen(VBN) and fatty acid composition. The TBARS values of sausage containing mulberry leaf and persimmon leaf powder were not significantly different(p > 0.05) as compared to control during 45 days of storage, but TBARS values of sausage containing 0.04% mulberry leaf and persimmon leaf powder were significantly lower than those of control at 60 days of storage. The nitrite scavenging ability of sausage containing mulberry leaf and persimmon leaf powder was higher than that of control. The VBN content of all treatments significantly increased(p < 0.05) during the storage periods. In fatty acid compositions, the percentages of PUFA/SFA of sausage containing mulberry leaf and persimmon leaf powder were significantly higher as compared to control. In conclusion, sausage containing mulberry leaf and persimmon leaf powder was a more effective natural resource on the basis of the lipid oxidation and nitrite scavenging ability of sausage.
Journal of the Korean Society of Clothing and Textiles
/
v.38
no.4
/
pp.540-556
/
2014
This research investigated the effective conditions to dye cotton with commercial indigo leaf powder. We tested dyeing conditions of: pH of dyebath (6.5, 9-12), heating ($20^{\circ}C$, $50^{\circ}C$, $70^{\circ}C$, $90^{\circ}C$), ageing (0, 0.5, 1, 4, 24 hours), reduction time (0, 30, 60 min), and dyeing temperature ($2^{\circ}C$, $10^{\circ}C$, $20^{\circ}C$, $50^{\circ}C$, $70^{\circ}C$, $80^{\circ}C$), dyeing was conducted for 20 minutes. The highest K/S value was obtained when cotton was dyed using pH 11 dyebath, heated at $50^{\circ}C$ for 30 minutes, aged for 24 hours at room temperature ($20^{\circ}C$), reduction carried out for 30 minutes, and dyed at $50^{\circ}C$. It is proposed that the K/S value is primarily influenced by the dyebath pH and dyeing temperature, followed by the presence or absence of ageing time and reduction time. The color of cotton with high K/S values was B type by Munsell hue value, which was similar to the color obtained in previous studies by freshly made indigo leaf powder and indigo leaf juice. The results indicate that the dyeing conditions established in this research are suitable to maximize the dyeability of commercial indigo leaf powder and that the indigo leaf powder can be used as a substitute for fresh indigo leaf juice.
The purpose of this study is to develop fresh pasta added with mulberry leaf powder as functional fresh pasta. Through previous research, the mixture of 40% of flour and 60% of rice powder was optimum for making noodles with mulberry leaf powder. Making fresh pasta with 40% of wheat flour, 60% of rice powder (optimum moo for making noodles) and mulberry leaf powder(0.5% 1.0% 1.5% 2.0%) was done, followed by the mechanical test(moisture content, color value, texture, tension) and the sensory analysis(quantitative descriptive analysis, preference test). Moisture contents of raw pasta and cooked pasta were the highest in control; scores for moisture contents of cooked pasta were higher than those of raw pasta. The result indicated that the more mulberry leaf powder was, the lower L-value and a-value were in raw pasta and cooked pasta. While the b-vale(yellowness) of raw pasta was the highest in control(9.81), 1.0% of mulberry powder addition sample was the highest in cooked pasta. For hardness, the 2.0% of mulberry leaf powder addition sample has high scores, and adhesiveness and chewiness were no significant difference. The 0.5% of mulberry leaf powder addition sample was the longest in tension distance, which was resulted from the lack of water contents in mulberry leaf powder. In cooked pasta, tension distance had no significant difference between the samples, and force showed the highest score in control. The quantitative descriptive analysis showed that color intensity, savory taste, bitterness were the highest in the 2.0% of mulberry leaf powder addition sample. Gloss and chewiness were no significant difference between the samples. Grassy flavor, savory flavor, bitterness and grainess were intense as mulberry leaf powder was added The preference test showed that MRP 1.5 containing 1.5% of mulberry leaf powder was the most preferable for color, texture and overall quality. In conclusion, 40% of wheat flour, 60% of rice powder and 1.5% of mulberry leaf powder made the best formula of fresh pasta with mulberry leaves.
This study was carried out in order to investigate the study on the characteristics of nutrient content and sensory evaluation of functional rice Dasik Rice Dasik was prepared with 0, 1, 2, 3 and 4% concentration of mulbeyry-leaf powder and silkpeptide powder. Increasing mulberry-leaf powder and silkpeptide powder led to the significant increase in the contents of crude protein and crude ash. The contents of Ca, K and Mg of mulberry-leaf powder and silkpeptide powder groups were higher than those of the mulberry-leaf powder and the silkpeptide powder free group. And the sensory evaluation of the rice Dasik with 2% mulberry-leaf powder and silkpeptide powder were found to be significantly higher than those of other groups.
The purpose of this study was to evaluate the quality properties of muffin added with different concentration (0, 1, 3, and 5%) of ginseng leaves powder, which is discarded in the process of ginseng. Density of muffin was the highest at 1.45 g/mL in control, and pH (7.41) was at the highest level as well. There was no tendency at the bottom and upper dimensions according to addition of ginseng leaf powder. The height and baking loss rate of the muffins increased with increase in the powder concentration, but there were no significant differences. The weight of muffins did not show constant tendency, according to addition ratio of ginseng leaves powder. The degree of lightness and yellowness of muffin decreased as the concentration of the powder increased, whereas no significant difference in the redness was found with increased powder concentration. The factors of hardness and chewiness were higher at the control group and cohesiveness was the highest at 0.65 in 3% group, but springiness and gumminess did notshow significant differences. DPPH free radical scavenging activity of muffins was significantly increased with increasing ginseng leaves powder (p<0.05). For the sensory evaluation in 1% group, the intensity of color, smell, taste, softness, and moistness was the lowest, whereas the overall acceptability score of color, smell, taste, chewiness, and moistness was the highest. Thesensory properties of muffin linearly decreased as the concentration of ginseng leaves powder increased. Taken together, the results of this study suggest that ginseng leaf powder is a good ingredient for increasing the consumer acceptability and functionality of cookies.
In this study, the effects of yacon (Smallanthus sonchifolius) leaf on the quality characteristics of cookies were examined. In order to investigate its effects, four different amounts (0%: Control, Y-0.5, Y-1.0, Y-1.5) of yacon leaf powder were added to the cookie dough. Among the physicochemical and sensory characteristics, the density and pH of the dough, spread factor, color value, firmness, consumer acceptability, and Pearson's correlation coefficients were measured. Although there was no significant difference in pH of the doughs among the groups, density significantly decreased with increasing amount of yacon leaf powder (p<0.05). While the L, a, b values, and hardness decreased significantly, DPPH free radical scavenging activity increased significantly as the content of yacon leaf powder increased (p<0.05). Overall acceptability, appearance, taste, and texture between the control and Y-0.5 groups showed no significant differences. This study suggests the possibility of yacon leaf as an ingredient that increases the functionality of cookies.
The objective of this study was to evaluate the quality characteristics of lotus leaf Dasik prepared by additions of lotus leaf powder at differing levels (0%, 3%, 6%, 9%, 12%). The proximate composition of the lotus leaf powder was 6.00% moisture, 19.56% crude protein, 0.78% crude fat, 64.7% carbohydrate, and 8.93% crude ash. As the lotus leaf powder level increased, the moisture content of the lotus leaf Dasik increased however, the L, a, and b values of the lotus leaf Dasik significantly decreased. According to the mechanical evaluation results, hardness increased as the level of lotus leaf powder increased, adhesiveness and springiness were not significantly different among the groups, and cohesiveness was evaluated as higher in the control group as compared to the lotus leaf groups. In the sensory evaluations, the 6% lotus leaf Dasik prepared with 188 g of flour, 12 g of lotus leaf powder, and 200 g of honey showed the highest preference scores and was therefore chosen as the optimal product.
The purpose of this study was to investigate the effects of mulberry and persimmon leaf powder with various contents(0.04%, 0.08%) on physico-chemical and sensory properties of emulsified-sausages. There were no differences(P>0.05) in moisture and crude ash contents(%), but crude fat contents(%) of the sausages containing 0.8% persimmon leaf powder showed the highest, compared to other treatments. pH values of all treatments decreased during storage period. Sausages containing mulberry and persimmon leaf powder had more bright and yellow, but less red color than the control. Hardness values of the sausages containing 0.04% mulberry and persimmon leaf powder were higher than those of a control and other treatments. The addition of mulberry leaf powder had better flavor and overall palatability of sausages than persimmon leaf powder. However, no differences in color, flavor, tenderness and overall palatability were observed on 60 days of storage. These results indicated that the addition of mulberry and persimmon leaf powder for the manufactured of emulsified-sausages partially affected physico-chemical and sensory properties. Further research will be performed why the addition of these powders affect the product quality.
Journal of the Korean Society of Food Science and Nutrition
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v.30
no.2
/
pp.215-221
/
2001
Mustard leaf kimchi added different ratios of pumpkin powder(P) and green tea powder(G) were investigated by measuring changes of physicochemical, microbiological and sensory characteristics during fermentation at 5℃. The pH and total acidity were changed slowly until 20 days, and then changed rapidly for 20∼40 days in all mustard leaf kimchi groups. The pH and acidity of mustard leaf kimchi added 0.5% G was the most slowly changed compared to the other groups. Reducing sugar content was highest in mustard leaf kimchi added 0.5% P at early stage of fermentation, but the reduing sugar content of this mustard leaf kimchi group was decreased more rapidly than those of the other groups during fermentation. The numbers of lactic acid bacteria and total bacteria were highest in 0.5% P added group and lowest in 0.5% G added group. The mustard leaf kimchi added 0.3% P and 0.2% G was relatively high in number of Leuconostoc sp., on the contrary low in Lactobacillus sp. compared to the other groups during fermentation. Changes of Hunter's color values, especially yellowness, and hardness were smaller in each mustard leaf kimchi added 0.5% G, and 0.3% P and 0.2% G than the other groups. Sensory scores of taste, odor and overall acceptability were highest in mustard leaf kimchi added 0.3% P and 0.2% G. Based on these results, it is suggested that mustard leaf kimchi added 0.3% P and 0.2% G was the best group among mustard leaf kimchi groups.
The effects of dried leaf powders and ethanol extract of persimmon, green tea and pine needle on lipid metabolism, lipid peroxidation and antioxidative activity were investigated in rats. Forty-nine male Spargue-Dawley rats weighing 107.8$\pm$1.8g were blocked into seven groups according to body weight. Rats were raised for four weeks with diets containing either 5%(w/w) dried leaf powders of one of three different Korea traditional teas, persimmon(Diospyros kaki Thunb), green tea(Camellia Sinensis O.Ktzc)or pine needle(pinus Koreansis Sieb. Et Zucc), or ethanol from equal amounts of each dried tea powder. Food intake, weight gain, food efficiency ratio, and weights of liver, kidney and epididymal fat were significantly higher in the green-tea-powder group, and significantly lower in the pine-needle-powder and pine-needle-extract groups. Persimmon-leaf powder was found to decrease plasma total lipid, triglyceride and cholesterol concentration by increasing fecal total lipid triglyceride and cholesterol excretions. Liver cholesterol concentration was significantly lower in the green-tea and pine-needle-extract groups. Red-blood-cell superoxide dismutase(SOD) and glutathione peroxidase(GSH-px) activities were significantly increased in rats fed green-tea extract. Liver SOD activity was increased in rats fed pine-needle powder or extract, and liver GSH-px activity was increased in rats fed greentea powder. Plasma and liver thiobarbituric acid reactive substance(TBARS) concentration were both decreased in rats fed dried leaf posers or extracts of persimmon or green tea. It is believed that high vitamin E levels in persimmon leaf, and high flavonoid, beta-carotene and vitamin C levels in green tea effectively inhibited lipid peroxidation. In conclusion, persimmon and green tea leaves were effective in lowering lipid levels and inhibiting lipid peroxidation in animal tissue, while pine needles were effective and lowering body weight gain. From these results, persimmon and green tea leaves can be recommended in the treatment and prevention of chronic discorders such as cardiovascular disease, cancer and aging. As ethanol extracts from these teas were also effecitive in lowering tissue lipid levels and inhibiting lipid peroxidation, we recommend the use of discarded tea grounds for this.
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