• Korean Journal of Fisheries and Aquatic Sciences
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• v.48 no.1
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• pp.44-50
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• 2015

The basic and main nutritive ingredients of two temperature (Anguilla japonica and A. rostrata) and two tropical (A. bicolor pacifica and A. marmorata) fresh water eel species that are farmed domestically were evaluated. With exception of A. rostrata, eels cultured at the same farm were used for analysis. The contents of crude protein were in the order A. marmorata (17.7%)>A. rostrata (17.5%)>A. bicolor pacifica (17.4%)>A. japonica (15.8%) and the contents of crude lipids were A. japonica (21.5%)>A. rostrata (15.4%)>A. bicolor pacifica (10.5%)>A. marmorata (8.9%). These values differed significantly even among the three species of eel farmed under identical culture conditions. In comparison, all four species of eel showed similar pattern in overall amino acid composition, although slight differences in the compositions of some amino acids were observed. The fatty acid compositions of muscle tissues were notably different among four species of eel, especially between the tropical and temperature eels. In a taste-test of the meat of the four eel species, which considered taste, flavor and texture, the overall preference was in the order A. japonica, A. marmorata, A. bicolor pacifica and A. rostrata.

• Journal of Plant Biotechnology
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• v.44 no.3
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• pp.335-342
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• 2017

Purple passion fruit (Passiflora edulis Sims) is one of the introduced tropical plants, an increasing interest has arisen due to its distinctive taste and attractive flavor. It is expected that passion fruit production and planted area will increase gradually in the years ahead because of high profitability and consumer's demands of healthful ingredients. So we tried to investigate the effect of plant growth regulators and antioxidants on in vitro plant regeneration and callus induction from leaf explants of passion fruit for an establishment of optimal mass propagation system. Young leaf explants of purple passion fruit were cultured in Murashige and Skoog (MS) medium containing different growth regulators and antioxidant additives to induce the shoot organogenesis. After 8 weeks, the highest embryogenic callus formation rate was obtained in MS medium supplemented with $1mg{\cdot}L^{-1}$ 6-benzylaminopurine (BAP) and $2mg{\cdot}L^{-1}$ 2,4-dichlorophenoxyacetic acid (2,4-D), furthermore, the shoot development via organogenesis was also observed. Silver nitrate ($AgNO_3$), which was added into the medium to minimize the adverse effects of leached phenolics, was effective for reduction of medium browning and sudden explant death. In the medium supplemented with $1mg{\cdot}L^{-1}$ BAP and $1mg{\cdot}L^{-1}$ gibberellic acid ($GA_3$), shoots were most vigorously regenerated and elongated. Most shoots rooted successfully in half strength medium with $1mg{\cdot}L^{-1}$ indol-3 acetic acid (IAA), and more than 90% of plantlets survived after 4-month acclimatization period.

• Journal of the Korean Society of Food Culture
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• v.29 no.1
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• pp.91-100
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• 2014

This study investigated the antioxidative activities and quality characteristics of gruel as a home meal replacement with Angelica keiskei powder pre-treated by far-infrared radiation or freeze-drying methods. Far-infrared treated Angelica keiskei powder (F-IAP) showed significantly lighter, weaker green, and stronger yellow color values than powder subjected to freezedrying (FAP) (p<0.001). F-IAP showed higher total phenolic compound contents than that of the FAP. ABTS radical scavenging activity of F-IAP was 50.31%, which was significantly higher than that of FAP, at 43.51% (p<0.05). Color values of gruel significantly decreased with increased addition of Angelica keiskei powder (p<0.05). Gruels containing far-infrared treated Angelica keiskei powder (F-IAG) showed higher total phenolic compound contents as well as ABTS radical scavenging activities compared to the gruels containing freeze-dried Angelica keiskei powder (FAG). Gruels containing 5 g of Angelica keiskei powder showed 2.0 to 2.5 times higher antioxidant activities than those containing powder alone due to the presence of other ingredients with antioxidant activities such as black soybean or sweet pumpkin. In the results of sensory evaluation, F-IAG containing more than 5 g of Angelica keiskei powder had higher sweetness and roasted grain flavor, as well as lower bitterness and astringency compared to FAG. Sensory acceptance tests of all samples showed higher scores than 5.0 representing possibilities of successful development of gruels as a home meal replacement containing Angelica keiskei powder.

• Journal of the Korean Society of Food Culture
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• v.29 no.6
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• pp.567-576
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• 2014

Bulgogi (Korean-traditional barbequed beef) is one of the most globally well-known Korean foods. Though various attempts have been made to promote bulgogi, studies are limited understanding mostly to US consumers or foreigners who reside in Korea. China, the world's most populous country, has the biggest market potential in the world. The purpose of this study was to understand reasons of liking or disliking bulgogi products in Chinese consumers who reside in China in comparison to Korean consumers. The bulgogi used in this study differed in its main marinating ingredients. Check-all-thatapply (CATA) questionnaire was used to collect the reasons why one liked or disliked the given bulgogi product. CATA result showed that even for the same product, Korean and Chinese consumers liked or disliked it for different reasons. In particular, unlike Koreans, Chinese consumers reported sweet taste and garlic flavor as reasons for disliking the samples with high amounts of sugar and garlic, respectively. This seemed to be the result of differences in familiarity of consumers to certain tastes and flavors. The results imply the influence of culture in consumer preferences.

• Korean journal of food and cookery science
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• v.21 no.4 s.88
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• pp.422-432
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• 2005

Shinuncho(Angelica keiskei koidz)sulgi is a kind of steamed rice cake by an earthenware steamer. I made Shinuncho-sulgi samples with different amounts of Angelica keiskei koidz - powder and different types of sugars (sugar or honey). The more Angelica keiskei koidz powder it has the bitter it tastes but the lower sweetness, moistness and chewiness it has. Samples with honey have higher sweetness, moistness and chewiness but lower bitterness and after-swallowing than ones with sugar. Color is Shinsuncho-sulgi with $3\%$ of Angelica keiskei koidz - powder and honey has been judged to have the best quality. Flavor and Overall-acceptability are Shinsuncho-sulgi with $2\%$ of Amge;oca keiskei koidz - powder and honey has been judged to have the best quality. The more Angelica keiskei koidz powder it has the higher hardness but the significantly cohesiveness, springiness, gumminess, and chewiness it has. Samples with honey have higher hardness, springiness, cohesiveness, gumminess and chewiness, but lower adhesiveness, than ones with sugar. The moisture content of Shinsuncho-sulgi is $35.89\~37.08\%$. Samples with honey have higher b-value but lower L-value and a-value than ones with sugar. Based on the results of the study, the best ratio of ingredients is as follow non-glutinous flour 196g, Angelica keiskei koidz powder $2\%$ (4g), honey 35ml, salt 2g, water 20ml and $37.08\%$ of moisture content.

• Korean journal of food and cookery science
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• v.26 no.3
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• pp.290-299
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• 2010

The purpose of this study was to investigate the quality characteristics and acceptability of curried rice containing cheonggukjang powder for the using in a high school foodservice menu. The viscosity of the curry sauce with cheonggukjang powder was not significantly different between the control and 15% sample group. As the level of cheonggukjang powder was increased, the Hunter's L value increased, whereas the a value decreased. In the results of the acceptance test, the 15% group was not significantly different from the control group. Therefore, the 15% group was selected based on the acceptance test for use by the school foodservice industry. There was no significant difference between boys and girls (p<0.01) in the acceptance test of curried rice with cheonggukjang powder in terms of flavor, color, aroma, density of sauce, overall acceptability. In regards to the reason why boys and girls did not consume the curried rice, 'because of unfavorable taste' (51.0%), ranked highest followed by 'because of other' (34.2%). In conclusion, there was a high food acceptance food when cheonggukjang powder was added to curried rice. Also, it is necessary to increase the preference and consumption of cheonggukjang foods and through the development of proper recipes that contain cheonggukjang and through combination with other food ingredients.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.47
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• pp.95-106
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• 2002

Soybean is one of the most important sources of protein and oil in the world. Recently, emphasis has been laid on the chemical composition of soybean seeds for the processing soybean foods. Improvement of soybean components has been expected to improve food-processing quality for the processed soybean products such as soymilk and various edible ingredients as well as fur the traditional soyfoods. In Korea, soybean breeding research programmes have been focused on the quality of the products derived from soybean with yield stability, and some new modified soybean varieties haying good food-processing quality were developed recently. So the efforts of establishing standard and standardization of products in soybean are important. Three main categories should be considered in view of soybean seed quality; the marketing value such as grain size, shape, and appearance; the eating and processing value such as dehulled ratio, water absorption rate, and benny flavor; the nutritional value such as protein, lipid, and carbohydrate contents. And the new frontiers in research are looking at the functional nutrients in soybeans and how to improve them. In case marketing value, mainly the appearance is evaluated, therefore, each country has an application of standard related to quality. Each determination of standard class, heat-damaged kernels, splits, and soybeans of other colors is made on the basis of the grain when free from foreign materials. But processing value and nutritional value for standardization were not studied in detail till now. In addition, soybean has potential roles in the prevention and treatment of chronic diseases, most notably cancer, osteoporosis, and heart disease. The functional nutrients include a protease inhibitor, phytic acid, saponins, and isoflavones, etc.. It is believed that standardization of soybean quality should perform to overcome the difficulties, relatively high price of domestic soybean products has weakened the competitive power, in the market related to WTO. So, we should focus on further research into the evaluation and establishment of quality-standard in soybean.

• Journal of the East Asian Society of Dietary Life
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• v.21 no.3
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• pp.367-374
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• 2011

The purpose of this study was to determine the optimum condition for producing tea leaf Jeung-pyun that does not contain added parched tea leafs (0, 0.5, 1, 1.5, and 2%) while producing Jeung-pyun that has a variety of functional ingredients and to investigate the possibility of making practical application of tea leafs. Moisture contents were 56 ~66% and there were no significant differences among the samples. The pH of Jeung-pyun samples was 5.65~5.74. The L-value decreased as the amount of added tea leaf increased, and the a-value was low in the group made with added tea leafs. The b-value was high in the 1% added group and had a tendency to increase vs the control group as amount of added tea leaf increased. In the groups with added tea leaf the volume was evaluated as being higher in the order of 1>1.5>2%. The specific volume of the group with added tea leaf was evaluated as being higher in the order of 1>1.5>2%. Sensory characteristics of the group with added tea leaf were evaluated as being high. For characteristics of cell uniformity, rice wine flavor, and sweetness, the control group was evaluated as being high, and for characteristics of color, moistness, and softness the 1% added group was evaluated as high. Astringency was evaluated as being high in the 2% added group. Texture profile analysis was conducted after samples were maintained in an incubator at $20^{\circ}C$ for 0, 1, 3, 5, and 7 days. Characteristics for hardness, gumminess, chewiness tended to increase with longer periods of storage. Characteristics for cohesiveness, springiness tended to decrease as the storage period increased. As determined by this study, addition of 1% tea leaf was the most favorable method for making use of tea leafs the production of Jeung-pyun and a potentiality for the use of tea leafs in food was discorvered.

• Journal of the East Asian Society of Dietary Life
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• v.18 no.6
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• pp.1046-1055
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• 2008

The principal objective of this study was to assess the sensory and mechanical characteristics, moisture content and color values of Ogapisulggi by varying the quantity of Acanthopanax sessiliflorus Seemann var. Goma(Ogapi) berry powder and the types of sugar utilized. The moisture content, color values, texture characteristics, and sensory characteristics of the different Ogapisulggi were then measured and compared. When the quantity of the Ogapi berry powder was the same, Ogapisulggi with honey added and the equal amount of sugar and honey added group was moister than that with sugar. The ightness values and yellowness values were decreased with increasing the Ogapi berry powder, whereas the redness values was increased. In particular, decreased proportions were observed in the Ogapi berry powder and sugar-added group($R^2$=0.922), the equal amount of sugar and honey-added group($R^2$=0.922) and the honey-added group$R^2$=0.966). In our texture analysis, hardness and adhesiveness values were reduced in the 0.3% Ogapi berry powder-added group, and springiness, cohesiveness, and chewiness values were increased the Ogapi berry powder-added group. Sensory evaluation showed that the Ogapisulggi containing 0.3% Ogapi berry powder was the lowest in terms of color, flavor, after-swallowing and overall preference. On the basis of the results of this study, the best ratio of ingredients was as follows: 0.3% addition of Ogapi berry powder with sugar and 0.1% addition of Ogapi berry powder with honey, which supports the conclusion regarding the benefits of Ogapi berry powder supplementation in Ogapisulggi in terms of taste and functionality.

• Korean journal of food and cookery science
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• v.24 no.1
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• pp.76-83
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• 2008

The aim of this study was to use arrowroot powder to develop a recipe for a nutritional cookie having the optimal composition of ingredients and texture to elict a strong preference response in all age groups. Wheat flour was partially substituted with arrowroot powder to reduce the wheat flour content of the cookie. Measurements were made and analyzed according to the Response Surface Methodology technique, which showed 16 experimental points including 2 replicates for arrowroot powder, yellow sugar and butter. The compositional and functional properties of the test were measured, and the values obtained were applied to a mathematical model. A canonical form and perturbation plot showed the influence of each ingredient on the final mixture product. The result of sensory evaluation showed very significant values for color (p<0.01), appearance (p<0.001), texture (p<0.05), overall quality (p<0.05), and flavor (p<0.05). Instrumental analysis showed significant values for lightness (p<0.001), redness (p<0.01), yellowness (p<0.01) and spread ratio (p<0.001). The optimal sensory ratios were determined to be 15g for the arrowroot powder, 70 g for sugar and 80 g for butter.