The principal objective of this study was to evaluate the quality of Yukwa prepared with mulberry leaf (Morus alba Linne) powder. The moisture, crude protein, crude lipid, crude ash, dietary fiber, and rutin contents of used mulberry leaf powder were 6.65%, 19.50%, 3.26%, 18.24, 38.91 and 0.54%, respectively. The tested concentrations of mulberry leaf powder were 0, 3, 5, and 7%. The Yukwa were stored at $45^{\circ}C$ for 40 days. Yukwa dough prepared with mulberry leaf powder had a lower pH compared to the control group. As more mulberry leaf powder was added, the spread ratio, moisture content, and volume increased. As more mulberry leaf powder was added, L-value decreased while a and b values increased with increasing mulberry leaf powder content. The hardness of Yukwa made with 7% mulberry leaf powder was the highest among the samples. In the sensory tests, Yukwa with 5% mulberry leaf powder received the highest scores. The acid value and peroxide values were lower in Yukwa prepared with mulberry leaf powder than control. Yukwa prepared with mulberry leaf powder strongly inhibited oxidation of lipids. The thiobarbituric values were lower in Yukwa prepared with 5% mulberry leaf powder than in Yukwa prepared with 3% and 7% mulberry leaf powders and control Yukwa. These results suggest that mulberry leaf powder can be applied to Yukwa to achieve high quality and functionality.
This study investigated the quality and antioxidative properties of a Korean steamed-rice cake, Sulgidduk added with Prunus yedoensis Matsumura extract, and vitamin C. Sulgidduk was prepared by adding Prunus yedoensis Matsumura extract at 0, 0.1, 0.2, and 0.3% of rice powder. Antioxidant activities were measured by the scavenging activities of DPPH radicals, $ABTS^+$ radicals, $superoxide^-$ radicals and the reducing power. For analyzing quality characteristics, proximate composition, color, texture profile analysis, and sensory evaluations were measured. The antioxidative effect of the Sulgidduk significantly increased as the addition level increased, compared to the original Sulgidduk (p<0.001). As the content of Prunus yedoensis Matsumura extracts increased, L-values significantly decreased while the a-value and b-value significantly increased (p<0.001). For the texture profile analysis, the control group had a significantly higher value for hardness as compared to the Prunus yedoensis Matsumura extract-added groups (p<0.05). Springiness, chewiness and adhesiveness were not significantly different among the samples. In the sensory evaluation, the samples containing 0.1% and 0.2% Prunus yedoensis Matsumura extracts obtained better results in attribute. From these results, we suggest that Prunus yedoensis Matsumura is a good ingredient for increasing the consumer acceptability and the functionality of Sulgidduk.
Journal of the Korea Fashion and Costume Design Association
/
v.19
no.1
/
pp.55-70
/
2017
This study researched transition process of fur costume from ancient times to 20th century, extracted esthetic characteristics, and then understood how the esthetic characteristics appear in the recent fur collection. The result is as follows. First, magical meaning was revealed on leopard fur that ancient chief priests wore on top of shenti to symbolize immorality and fur tunics to which christian symbol was added in Byzantine. During middle age and the Renaissance, extravagance appeared on sable and amin jackets that the noble decorated to show off their high status. During the rococo age and mid-20th century, sensuality and elegance appeared on the fur dresses that the female body was emphasized. Second, in recent collection, extravagance appeared on over-sized and voluminous fox-coat, sexsuality and elegance were revealed through mink-dresses and jackets with soft touch and gloss that curved-silhouette was emphasized. In addition, practicality and functionality were shown through short length and light, soft material, and activeness was in the mink jacket to which functional elements such as zippers and rubber were added. To pursue uniqueness and fun, fox jackets were made with over-sized vivid green color. Besides, abnormality and vulgarness appeared through the fashion with abnormal and distracted images with ambiguous forms and new processing methods applied.
Transmission of video over Internet or wireless network requires coded stream capable of adapting to dynamic network conditions instantly. To meet this requirement, various scalable video coding schemes have been developed, among which the Scalable Video Coding (SVC) extension of the H.264/AVC is the most recent one. In comparison with the scalable profiles of previous video coding standards, the SVC achieves significant improvement on coding efficiency performance. For adapting to dynamic network bandwidth, the SVC employs inter-layer switching between different temporal, spatial or/and fidelity layers, which is currently supported with instantaneous decoding refresh (IDR) access unit. However, for real-time adaptability, the SVC has to frequently employ the IDR picture, which dramatically decreases the coding efficiency. Therefore, an extension of SP picture from the AVC to the SVC for an efficient inter-layer switching is investigated and presented in this paper. Simulations regarding the adaptability to dynamic network bandwidth are implemented. Results of experiment show that the SP picture added SVC provides an average 1.2 dB PSNR enhancement over the current SVC while providing similar adaptive functionality.
The objective of this study was to assess the quality characteristics of almond Dasik prepared with the addition of purple sweet potato powder (PSPP). Five different levels (0, 5, 10, 15, and 20%) of PSPP were added and the physicochemical properties of the Dasik were examined. Crude protein and crude fat contents decreased as the level of PSPP increased (p<0.05). The Hunter L-value decreased while the a-value increased as the PSPP level increased. Texture measurements showed that the addition of PSPP increased hardness, cohesiveness, and brittleness. Total polyphenol content and antioxidant activity were assessed in terms of estimating the functionality of the Dasik. The results showed that incorporating PSPP into the Dasik provided higher polyphenol content and antioxidant activity compared to the control Dasik (p<0.05). The results of a consumer acceptance test revealed that the Dasik sample made with 15% PSPP was most preferred and the 20% sample was the least preferred. Therefore, it is suggested that purple sweet potato powder can be incorporated into Dasik up to 15% without reducing its quality.
The characteristics of cookies added asparagus (Asparagus officinals L.) powder were analyzed by chemical and sensory evaluation. Samples were prepared with different levels (0, 0.5, 1, 2, 3 and 5%) of freeze-dried asparagus powder. The lowest pH of the cookie dough was pH 6.26 in the 5% asparagus powder added group. Density value of cookie dough was decreased by increase of asparagus powder addition volume. Spread factor and hardness of cookie was significantly increased by addition of asparagus powder. And hardness was the highest in 5% asparagus powder added cookie, however there was no remarkable different between 0.5~1% added group and control. Hunter color L and a-value of dough was decreased significantly, while b-value was increased when concentration of asparagus powder was added greater than 3%. L-value of cookie was significantly decreased with larger of asparagus powder addition volume and the lowest in the 5% asparagus powder added group (55.38). Hunter a-value of cookie showed not significantly differences in all groups. The sensory evaluation was not observed significantly differences by terms of color (3.77~4.77), brittleness (4.11~4.88), flavor (3.88~4.55), taste (4.11~5.00) and overall acceptability (4.00~4.77). From these results, we suggest that asparagus powder addition is possible up to 5% and is good ingredient for increasing the acceptability and functionality of cookies.
This study was conducted to develop a functional syrup by using maca extract. Five different levels (0%, 7%, 14%, 21%, 28%) of maca extract was added and the physicochemical properties were investigated. The pH of control syrup was lower than that of syrup added with maca extract. Viscosity increased with increasing amount of maca extract. Hunter L value decreased while b value increased as maca extract level increased. Results of consumer acceptance test revealed that no significant differences in flavor, sweet taste and overall acceptability were observed among samples. Therefore, it is suggested that maca extract can be incorporated into syrup up to 28% without depressing the quality. Total polyphenol content and DPPH radical, superoxide anion radical and hydroxyl radical scavenging tests were conducted in view of estimating the functionality of maca syrup. Results showed that incorporation of maca extract into syrup exhibited higher polyphenol content and DPPH radical and superoxide anion radical scavenging activity than control syrup (p<0.05).
This study aimed to reduce the oily taste of Bechamel sauce, and improve consumers' acceptability and functionality by adding Ginseng seed inside. This study also performed quantitative description analysis and acceptability test in order to see its unique sensory characteristics. The results were as follows: The viscosity and moisture content decreased as ginseng seeds got added. This may be due to decrease in relative amount of flour. In terms of color, brightness (L) and yellowness (b) tended to decrease as ginseng seeds were added, while redness (a) showed just the opposite propensity. The salinity became higher with more ginseng seed, however, soluble solid content showed no significant difference among the samples. From the result of quantitative and descriptive analysis among the sensory tests, the concentration of Bechamel sauce got higher with more ginseng seed, where the fragrance and the taste of ginseng were sensed strongly, while fragrance of milk, flour, and nuts were considered weak. Also, sense of stuffiness, oiliness, and tenderness has decreased as well. From the acceptability test, adding 30% of ginseng seed got the highest ratings in terms of fragrance, taste, afterward-taste, and overall acceptability. Therefore, adding ginseng seed positively affected Bechamel sauce in taste, smell, after-taste, and general acceptability. Moreover, when the added amount of ginseng seed was 30% compared to the flour, the taste of Bechamel sauce was relatively optimized. From the test results, it can be concluded that ginseng seed injected in Bechamel sauce improved nutritive facts and the taste acceptability as well, and 30% compared to the flour amount was the right amount to maximize consumers' acceptance of Bechamel sauce.
This study investigated the effect of $2\%$ addition of pectin and alginate on the Physicochemical and retrogradation Properties of Jeungpyun, a Korean traditional fermented rice cake. The volume of batters with alginate and Pectin was significantly larger than that of control. Jeungpyun samples with Pectin and alginate had a larger volume with uniform and smaller cell size. All samples showed largest foaming capability after second fermentation. Foaming capability of the control ($0\%$ addition of pectin and alginate) was significantly larger than that of the treated samples. The amount of reducing sugar tended to increase during fermentation but decreased after steaming, which was due to the increase in hydrolysis of starch. On the contrary, the content of free sugar was slightly decreased during fermentation but slightly increased after steaming. The control contained the largest amount of free sugar after steaming. The microstructure of starch particles after fermentation showed completely dispersed starch granules with air bubbles. After steaming, the structure was sponge-like in all samples. Samples with added alginate and pectin had significantly higher water binding capacity than those of the control. All samples showed noticeably increased solubility and swelling power at $70^{circ}C$ with the control being significantly lower than the treated samples. Retrogradation was measured with $\alpha$-amylase and the retrogradation process of the sample with added alginate and pectin proceeded slower than that of the control. The relative crystallinity was observed through X-ray diffraction method and samples with added alginate and pectin had smaller crystallinity and delayed retrogradation compared to the control. Thus, Jeungpyun with the addition of alginate and Pectin demonstrated improved functionality and dietary fiber addition effect. The storage period of was extended as the retrogradation rate was delayed by the addition of dietary fibers.
The purpose of this study was to evaluate of black carrot on the antioxidant activity and quality characteristics of Sulgidduk. Sulgidduk was prepared with different amounts (0, 1, 2, 3, 4%) of black carrot. As the amount of added black carrot increased, the moisture content (p<0.05) and pH were decreased (p<0.001). Sugar content results showed the increase with the addition of black carrot (p<0.01). L (lightness) values and b (yellowness) values decreased whereas a (redness) values increased with an increased concentration of black carrot powder (p<0.001). The mechanical texture of Sulgidduk was decreased by the addition of black carrot considering hardness, chewiness and gumminess (p<0.001) while those of springiness, cohesiveness increased. Consumer acceptability test revealed that the 2% black carrot groups had a higher score than the other groups in respect to color, flavor, taste, texture, overall palatability. To examine antioxidant activities of Sulgidduk, total phenolic, DPPH radical scavenging activity, and total anthocyanin were tested. Total phenolic, DPPH radical scavenging activity, and total anthocyanin showed good vitality as amounts of black carrot powder increased (p<0.001). Based on the various aspects of results, 2% of black carrot added into Sulgidduk showed the best functionality and sensory qualities.
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