• Title/Summary/Keyword: functional effect

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Nitrite Scavenging Effect of Methaol Fraction Obtained from Green Yellow Vegetable Juices (녹즙추출물의 아질산염 소거능에 대한 연구)

  • Chung, So-Yong;Kim, Nak-Kyung;Yoon, Sun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.2
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    • pp.342-347
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    • 1999
  • The objectives of this study were to investigate biological activities such as nitrite scavenging effect of water and methanol fractions obtained from each green juice(Angelica keiskei, kale, carrot) under different pH conditions, and antioxidant vitamin contents in green juice made of green yellow vegetables. The result shows that nitrite scavenging effect of each green juice was 14.0~91.2% in model system. The methanol fraction provided higher effect than the water fraction. The nitrite degradation was the highest at pH 1.2. Nitrite scavenging effect of methanol fraction obtained from kale juice was 91.2% at pH 1.2 which was the highest among tested samples in this experiments. Consequently, extracts of kale juice were shown to provide the greatest functional properties among the vegetables tested. Contents of vitamine E and C in the extracts of kale were higher than the others.

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Effect of Crosslinking Agent Structure on Drug Release and Antibacterial Effect of Contact Lenses (교차결합제 구조가 콘택트렌즈의 약물용출 및 항균효과에 미치는 영향)

  • Lee, Pil-Heon;Lee, Hyun Mee
    • Journal of the Korean Chemical Society
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    • v.65 no.5
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    • pp.320-326
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    • 2021
  • This study investigated the effect of the structure of the crosslinking agent used in contact lens polymerization on the physical properties and drug dissolution of contact lenses.es Contact lenses were manufactured using 0.3% and 3% of 4 types of crosslinking agents, respectively, and ofloxacin was used as the drug. Contact lenses using hydrophilic crosslinking agents improved water contents and wettability, and the more hydrophilic functional groups, the greater the effect. Contact lenses with a high concentration of crosslinking agent had a low concentration of eluted drug and a longer release time. The cross-linking agent structure of contact lenses had an effect on improving the performance of contact lenses and controlling drug release.

Studies on Hydrothermal Extracts from Fish Head 2. functional Properties of the Extracts (어체두부열수추출물에 관한 연구 2. 추출물의 기능특성)

  • CHOI Sang-Hyeon;PARK Seong-Min;SON Byung-Yil;CHOI Hyeon-Mec;LEE Keun-Tai
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.32 no.5
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    • pp.542-549
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    • 1999
  • The hydrothermal extracts were produced from fish head and their functional properties were investigated. The extracts exhibited an antioxidative effect and synergistic effect with $\alpha$-tocopherol by measuring peroxide values. The $5\%$ solution showed more antioxidative effect than $1\%$ solution. The extracts showed cryopropective effect, but the effect was less than sucrose. The solubility of the extracts was over $70\%$ in the all range of pH, and its lowest solubility was shown in pH 3.0. The extracts exhibited an emulsifying activity less than sugar ester (EAI=34.72) and little higher than or similiar to egg white (EAI= 14.69). The extracts showed a relatively high foam activity. The osmolality of the hydrothermal extracts at $1.0\%$ concentration were 23$\~$31 mOsmole which were much lower than 317 mOsmole at $1\%$ NaCl.

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Study on the Anti-stress Effect of Chenwangbosim-Dan Extract∘Fermented Rice Extract (GABA ː gamma-aminobutyric acid 30%) Complex : A double-blind, randomized, placebo-controlled study (천왕보심단(天王補心丹)∘쌀발효추출물(GABAːgamma-aminobutyric acid 30%) 복합물의 항(抗)스트레스에 대한 유효성 연구ː무작위 배정 및 이중맹검)

  • Choyoung, Hong;Seo, Sang Gwon;Seunggon, Na;Hosong, Cho;Mi-Kyung, Lee;Mu Hyun, Jin;Seok-Seon, Roh;Youngsung, Ju
    • The Korea Journal of Herbology
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    • v.38 no.2
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    • pp.1-7
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    • 2023
  • Objectives : From this study, we sight to identify Anti-stress effect of Chenwangbosim-Dan (Tianwangbuxin-Dan) Extract∘Fermented Rice Extract (GABA : gamma-aminobutyric acid 30%) Complex Methods : In order to measure the degree of functional evaluation of tension relief due to stress, it was evaluated whether the psychological indicators VAS(Visual Analog Scale) and POMS(Profile Of Mood State) were improved. Which is generally used for stress measurement and has a high frequency of clinical use. All clinical trial subjects were required to take the drug once a day at 9 ± 30 min in the morning for 2 weeks. Results : After intake, the group that Chenwangbosim-Dan(Tianwangbuxin-Dan) Extract∘Fermented Rice Extract (GABA : gamma-aminobutyric acid 30%) Complex had a statistically significant improvement effect compared to before intake due to an improved 30.81% of the VAS scores. The POMS-T score improved 54.13%, the POMS-V score improved 117.5% and the POMS-F score improved 59%, which had a statistically significant effect compared to Placebo group (p<0.001). There is a significant difference between two group, so even considering the placebo effect, the anti stress effect was confirmed in the Chenwangbosim-Dan (Tianwangbuxin-Dan) Extract∘Fermented Rice Extract (GABA : gamma-aminobutyric acid 30%) Complex intake group. Conclusions : The above results showed that the Chenwangbosim-Dan(Tianwangbuxin-Dan) Extract∘Fermented Rice Extract (GABA : gamma-aminobutyric acid 30%) Complex had an anti-stress effect. Therefore, it is expected to be developed as a safe and comfortable mental care health functional food that can reduce the risk of drug abuse.

Development of the Functional Films Coated with Nano-TiO2 Particles for Food Packaging and Removal of Off-flavor from Soybean Sprouts (나노 TiO2를 적용한 식품 포장 필름 개발 및 콩나물의 이취 제거)

  • Choi, Yeonwook;Jeon, Kyu Bae;Song, Kihyeon;Kim, Jai Neung
    • Korean Journal of Food Science and Technology
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    • v.47 no.6
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    • pp.733-737
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    • 2015
  • For testing the ultraviolet (UV)-blocking property of functional films coated with Nano-$TiO_2$ particles, UV-Vis spectra of oriented polypropylene (OPP) films uncoated and coated with $TiO_2$ of 3% and 5% in Polyurethane (PU) and polyvinyl butyral (PVB)-Cellulose binders were measured. The result of UV-Vis analyses showed that the film coated with 5% $TiO_2$ in PVB binders had a significant effect on UV protection of 90% compared with the film uncoated. Also The result of The photodegradation of methylene blue (MB), OPP films coated with 5% in both PU and PVB binders had a high photocatalytic activity for MB degradation. To evaluate the effect of the developed functional film coated with Nano-$TiO_2$ particles, fresh soybean sprouts were used. Nano-$TiO_2$ coated film was observed to decompose the off-flavor produced by soybean sprouts within packages during distribution, but uncoated film did not. Therefore, Nano-$TiO_2$ coated film package could give the greatest effect in extending the shelf life of soybean sprouts.

Selection of Bactericides for Controlling Soybean Bacterial Pustule (콩 불마름병 방제를 위한 살균제 선발)

  • Hong, Sung-Jun;Kim, Yong-Ki;Jee, Hyeong-Jin;Lee, Bong-Choon;Yoon, Young-Nam;Park, Sung-Tae
    • Research in Plant Disease
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    • v.16 no.3
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    • pp.266-273
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    • 2010
  • Bacterial pustule of soybean (Glycines max) caused by Xanthomonas axonopodis pv. glycines is one of the most prevalent bacterial diseases of soybean. This bacterium shows strong pathogenicity to the plants and distributes throughout Korea. However, no good control measures including bactericides and resistant cultivars are available to control the disease in Korea. Therefore, this study was conducted to develop chemical control method against soybean bacterial pustule. The present study was undertaken to find out the growth inhibitory effect bactericides (8 antibiotics, 2 copper compounds, quinoline, 18 agro-chemicals) on bacterial pustule pathogen. Antibiotics test showed that tetracycline and streptomycin sulfate significantly suppressed the growth of bacterial pustule pathogen. Also, application of oxolinic acid was found to be effective for pathogen inhibition. However, vancomycin, polymyxin B sulfate and copper compounds did not show the positive suppressive effect on growth of the pathogen. Among the eighteen agro-chemicals, streptomycin sulfate + oxytetracyclin (18.8 + 1.5%) WP, oxytetracycline (17%) WP and oxolinic acid (20%) WP were found to be effective for the inhibition of the pathogen in vitro. The selected 5 agro-chemicals were also applied on soybean in field and their control effects against the soybean bacterial pustule were tested. The foliar application of streptomycin sulfate + oytetracyclin WP and oxytetracycline WP on the naturally infected soybean (Taekwangkong) showed high control value (above 70%). Therefore, it is concluded that the bactericides used in this study showed strong inhibitory effect to soybean bacterial pustule and they can be recommend to farmers to control the disease.

Effect of Youngkaechulgam-tang and Bojoongikki-tang on Gastric Contractility, Body Weight, and Gastric Morphology in Rats with Non-obstructive Antral Dilation (비폐색성 위 전정부 확장이 있는 흰쥐의 위 수축력, 체중 및 위 형태 복원에 대한 영계출감탕과 보중익기탕(補中益氣湯)의 효능)

  • Jung, Yong-Jae;Yoon, Sang-Hyub
    • The Journal of Internal Korean Medicine
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    • v.31 no.4
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    • pp.857-869
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    • 2010
  • Objectives : The aim of this study was to evaluate whether rats with non-obstructive antral dilation could be a useful tool resembling functional dyspeptic patients. We also investigated the effect of Bojoongikki-tang (BJ), and Youngkaechulgam-tang (YK) in antral dilated rats. Methods : Non-obstructive antral dilation was performed by first wrapping a non-absorbable rubber ring (D:6mm, W:4mm, T:1mm) around the 1st portion of the duodenum causing pyloric obstruction (PO). After 12 weeks, except for some PO group rats used for the control, the rubber ring was removed by performing another operation. The antral dilated rats (AD) were then divided into three groups, a non-treatment group (AD-NT), and two herbal medicine groups each given an extract solution containing 125 mg/kg of Youngkaechulgam-tang (AD-YK) or Bojoongikki-tang (AD-BJ) for 4 weeks. Then gastric contractility was evaluated by bowel sound measurement, and afterwards the changes of the weight, and morphologic changes of the stomach were evaluated for each group including the normal intact group (NI). Results : Loss of weight and enlargement of the stomach surface area was seen in the PO group. Decrease of gastric motility index was observed in the AD-NT group, while the increased surface area of the stomach was not significantly different from the PO group. Youngkaechulgam-tang seemed to increase gastric contraction, whereas Bojoongikki-tang showed no effect. Weight gain of rats was observed in both the AD-YK and AD-BJ groups, but there seemed to be no change of the dilated stomach surface area. Conclusions : The non-obstructive antral dilated rat seems to be an experimental pathologic model that reflects the gastric dysmotility similar to functional dyspeptic patients with antral dilation. Therefore patients with dysmotility-like dyspepsia with antral function disorders should be treated efficiently. As Youngkaechulgam-tang is shown to increase both gastric contraction and weight in antral dilated rats, it may be used for treating functional dyspepsia. However, Bojoongikki-tang should be used with caution in patients with gastric dysmotility.

Standardization of Ingredient Ratios of Chinese Cabbage Kimchi (배추김치의 재료배합비 표준화)

  • Cho, Eun-Ju;Park, Kun-Young;Rhee, Sook-Hee
    • Korean Journal of Food Science and Technology
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    • v.29 no.6
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    • pp.1228-1235
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    • 1997
  • This study was conducted to standardize the proper ingredient ratios of chinese cabbage kimchi by the sensory evaluation, chemical properties, and functional properties of antimutagenic effect and inhibitory effect on the growth of cancer cells from the ratios obtained from literatures. The standardized ratios of ingredient from the literatures was 13.0 of radish, 2.0 of green onion, 3.5 of red pepper powder, 1.4 of garlic, 0.6 of ginger, 2.2 of anchovy juice, 1.0 of sugar and the final salt concentration 2.7 in the proportion of 100 salted chinese cabbage. The standardized ratio of the ingredients exhibited better overall acceptability and less moldy smell and moldy flavor than any other ratio of ingredient in the sensory evaluation. The standardized kimchi with the above ratios of the ingredients, at final salt concentration of 2.5%, showed high reducing sugar contents and Leuconostoc sp. counts. All juices of the chinese cabbage kimchi showed not only high antimutagenicity against aflatoxin $B_1$ in Salmonella typhimurium TA100 but also strong inhibitory effect on the growth of AGS human gastric adenocarcinoma cells in SRB assay, especially these functional properties were the most effective at each standardized ratio of the ingredients. From the taste, chemical and functional properties, the standardized ratios of ingredients was 13.0 radish, 2.0 green onion, 3.5 red pepper powder, 1.4 garlic, 0.6 ginger. 2.2 anchovy juice, 1.0 sugar and the final salt concentration 2.5 in the proportion of 100 salted chinese cabbage.

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Affecting Customer Loyalty by Improving Corporate Image and Customer Value through Corporate Social Responsibility Activities (기업의 사회적 책임활동을 통한 기업이미지 및 고객가치 향상이 고객충성도에 미치는 영향)

  • Kim, Jong-Ho;Hwang, Hee-Joong;Song, In-Am
    • Journal of Distribution Science
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    • v.12 no.8
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    • pp.31-42
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    • 2014
  • Purpose - Recently, a variety of activities for practicing the continuing management of domestic and foreign companies have been conducted and further, corporate social responsibility for maximizing the value of stakeholders such as customers, cooperative companies, and the local community emerges as a key business strategy. Accordingly, the issue of whether corporate image and customer value through corporate social responsibility activities positively affect customer loyalty and customer attitude is investigated in this study. Research design, data, and methodology - Corporate social responsibility activities are classified into legal and moral activities, environmental protection activities, economic activities, and community service activities; further, customer values are classified into emotional value, functional value, and social value, to determine the parameters. In addition, the strategic approach direction of social responsibility activities is justified as a strategy for effectively achieving the expected results that corporations seek by proving the effect of these parameters on customer loyalty. Results - The study results can be summarized as follows. First, legal and moral activities, environmental protection activities, economic activities, and community service activities are four types of CSR activities affecting meaningful improvements in corporate image. Second, legal and moral activities affect factors that meaningfully improve customer value, including factors such as emotional value, functional value, and social value, while environmental protection activities affect improvements in the factor of social value only. Third, corporate image affects meaningful improvements in customer value. Fourth, corporate image affects improvements in customer loyalty positively. Fifth, the three factors of customer value, that is, emotional value, functional value, and social value affect meaningful improvements in customer loyalty. Sixth, customer value acts to partly mediate the effect of companies' CSR activities on customer loyalty. As shown in the study results above, it was verified that CSR activities affect meaningful improvements in corporate image and customer value and, in turn, corporate image and customer value affect meaningful improvements in customer loyalty. In addition, it was verified that customer value acts to partly mediate the effects of companies' CSR activities on customer value. Conclusions - Accordingly, the results of this study suggests as follows. First, it was clearly verified that customers' recognition of CSR efforts has a positive effect on corporate image, customer value, and loyalty because CSR activities improve the relationships between customers and corporations by providing customers with value. Second, it was suggested that corporations implement social contribution activities strategically according to the theory that the higher the rate of CSR activities, the better the corporate image and repurchase intention would be, which is a theory verified through practical analysis. Corporations should do this by constructing positive relationships from the value perceived by customers. To summarize the study results in a brief manner, it is suggested by the results of the study that a corporation should conduct CSR more actively to make customers recognize the positive image of their products and services.

The Effect of Consumption Value and Creating Shared Values on Purchase Intention - Focused on Outdoor Brands - (소비가치와 기업의 공유가치창출활동이 구매의도에 미치는 영향 - 아웃도어 브랜드 중심으로 -)

  • Lee, Kil-Gu;Yi, Seon-Gyu
    • Journal of Convergence for Information Technology
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    • v.9 no.1
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    • pp.105-115
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    • 2019
  • This study empirically analyzed the effect of outdoor brand consumer's consumption value and company's creating shared values activity on consumers' purchase intention. The sub-variables of consumption value were set as functional value, conditional value, and emotional value as factors affecting consumers' purchase intention. The sub-variables of company's creating shared values activities were set as economic value, relational value, social value. As a result of analysis, functional value, conditional value, and emotional value of consumption value were found to have a positive effect on purchase intention, and economic value, social value, and relational value of company's creating shared values were all positively influenced Respectively. According to the results of the analysis, it is found that both consumption value of outdoor brand consumers and company's creating shared values activities are positive factors for purchase intention. This result can be deduced that consumers 'consumption value and company's creating shared values activities in outdoor brand industry are already reflected in consumers' purchase intention.