• Title/Summary/Keyword: Food service industry

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Cell migration and Anti-inflammatory Effect of Red Ginseng Extracts Fermented with Laetiporus Sulphureus (붉은덕다리버섯 균사체로 발효한 홍삼 배양액의 cell migration 및 항염 효능에 관한 연구)

  • Oh, Seong-Hwa;Choi, Soo-Yeon;Lee, Nu Rim;Lee, Jung No;Kim, Dong-Seok;Lee, Sang-Hwa;Park, Sung-Min
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.40 no.3
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    • pp.297-305
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    • 2014
  • Red ginseng (RG) contains specific ginsenosides (Rg2, Rg3) which show various pharmacological effects and absorption rate in the body better than panax ginseng. Therefore many people have been used it for health for a long time. Furthermore, many researchers have been studying its biological activities for a long times because fermentation generates lots of beneficial small molecules good for health. In this study, we fermented red ginseng with mycelium of Leatiporus sulphures var. miniatus for 7 days. As a result, we found that three ginsenosides Rg1, Re and Rb2 were decreased from 0.24, 0.25, 0.16 mg/g to 0.12, 0.1, 0.03 mg/g respectively HPLC analysis. In addition, we studied biological activities of fermented red ginseng (FRG) about skin ageing such as anti-inflammation, cell migration, anti-oxidation, collagen type 1 synthesis, and MMP-1 inhibition activities. As a result, FRG were shown higher anti-inflammatory and cell migration promoting activities than RG. FRG inhibited production of nitric oxide (NO) and mRNA expression of inducible nitric oxide synthase (iNOS) and decreased interleukin (IL)-6 induced by LPS stimulation in RAW 264.7 cells. In conclusion, this study suggest that FRG could be a potential source as a new natural anti-inflammatory agent.

The Retrogradation of Steamed Korean Rice Cake (Jeungpyun) with Addition of Gums (검류 첨가에 의한 개량 증편의 노화억제 효과)

  • Kim, Dong-Ho;Whang, Hea-Jeung;Moon, Sung-Won;Kang, Byung-Sun
    • Korean Journal of Food Science and Technology
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    • v.38 no.6
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    • pp.838-842
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    • 2006
  • Gum was added to Jeungpyun (steamed Korean rice cake) to extend the shelf life and prevent retrogradation. The hardness of Jeungpyun was analyzed and the type of retrogradation was calculated by the Avrami equation. Guar gum, xanthan gum and pullulan were added to the steamed Korean rice cake at contents of 0.05%, 0.1% and 0.5% (w/w). The moisture contents of the steamed Korean rice cake stored at $4^{\circ}C$ remained unchanged over the three days. When the concentration of added gums was less than 0.1 %, the hardness was lower than that of the non-added gum. At a gum concentration of 0.5%, the hardness of Jeungpyun with added guar gum and xanthan gum was higher than that of pullulan and non-added Jeungpyun. The types of retrogradation varied according to the amount and the kind of the added gums. The type of retrogradation of pullulan-added rice cake was similar to that of xanthan-added rice cake. The Avrami exponent of pullulan-added and xanthan-added Jeungpyun was 1.4${\sim}$1.49 and 1.25${\sim}$1.43, respectively. As the concentrations of pullulan were increased from 0.05% to 0.5%, the time constant (1/k) increased from 5.37 to 15.65. Pullulan and xanthan gum were confirmed to be more effective than guar gum for preventing the retrogradation of the steamed Korean rice cake known as Jeungpyun.

Quality Characteristics of Fish Paste Containing Angelicae Gigantis Radix Powder (당귀 분말 함유 어묵의 품질 특성)

  • Shin, Young-Ja;Lee, Jung-Ae;Park, Geum-Soon
    • Korean journal of food and cookery science
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    • v.24 no.5
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    • pp.699-705
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    • 2008
  • This study was conducted to promote the of fish paste with angelicae gigantis radix powder as a food. The concentrations of angelicae gigantis radix powder were 0, 0.5, 1, 1.5, and 2%. All the samples of fish paste with added angelicae gigantis radix powder 37%. For the Hunter color values, the a values increased but the L and b values of the fish paste decreased increasing concentration of angelicae gigantis radix powder and the folding test good score in all the samples(AA). In texture test the hardness, chewiness, brittleness increased with increasing concentrations of angelicae gigantis radix powder. However, cohesiveness and springiness decreased increasing concentrations of angelicae gigantis radix powder. Sensorye valuation, color, flavor, hardness as the concentration of angelicae gigantis radix powder. Sleekness, and springness decreased increasing concentrations of angelicae gigantis radix powder. He fish paste 2% angelicae gigantis radix powder (2AGRP) the highest acceptance scores in color, the fish paste 0.5% angelicae gigantis radix powder (0.5AGRP) highest acceptance scores in chewiness. The fish paste 0.5% angelicae gigantis radix powder (0.5AGRP) also the highest acceptance scores for appearance, flavor, taste, texture, and overall quality. Results suggest that angelicae gigantis radix powder can be applied to fish paste to increase its quality.

A Study on the Effect of Organizational Service Orientation on Job Satisfaction and Organization Performance - A Case of Buffet Restaurant Kitchen Employees in Deluxe Hotels - (조직의 서비스지향성이 종업원 직무만족과 조직성과에 미치는 영향: 특급호텔 뷔페레스토랑 주방을 중심으로)

  • Song, Heung-Gyu;Jung, Deok-Young
    • Culinary science and hospitality research
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    • v.19 no.3
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    • pp.87-104
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    • 2013
  • This study attempts to effectively manage service orientation for deluxe hotel buffet restaurant workers in the kitchen organization. For this, the organization's service orientation in the relationship between employees' job satisfaction and organization performance was empirically tested. A survey was conducted to 300 restaurant employees working in the buffet kitchen of deluxe hotels in seoul. 276 copies of questionnaire were selected to take a regression analysis using Amos 16.0. The results of the test are as follows. First, the effect of service orientation on employee's job satisfaction showed that service leadership and service system of service orientation were significant factors about it. Second, hypothesis testing for the effect of service orientation on organization performance showed that human resource management of service orientation was a significant factor about it. The effect of employee's job satisfaction on organizational performance was significant as shown in previous studies. In conclusion, service leadership and service system should be a priority in order to improve service orientation and job satisfaction because employee's job satisfaction and organization performance have a direct relationship.

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The Educational Effect of MSG Safety Knowledge and the Effect of Its Change on Attitude to Food Safety and MSG Usage Intention (MSG 안전지식 교육에 따른 변화가 식품안전태도와 MSG 이용의도에 미치는 영향)

  • Ha, Heon-Su;Kim, Geon-Whee
    • Culinary science and hospitality research
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    • v.21 no.3
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    • pp.92-103
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    • 2015
  • The purpose of this study is to verify the educational effect of knowledge about MSG safety and to find evidence of how changes to that knowledge affects attitudes to food safety and MSG seasoning usage intention in the restaurant industry in order to develop efficient marketing strategies. The findings and implications of the research can be summarized as follows. First, there is a significant and positive effect of MSG safety education on regulations and academic research knowledge among MSG safety, but no significant effect on material knowledge. Second, no evidence was found of any effect that changes to MSG safety knowledge may have on attitude to food safety. Third, while the results show a significant and positive effect of regulation knowledge of MSG safety on MSG usage intention, there is no effect resulting from material or academic research knowledge on MSG safety.

Effect of Health-Orientated Menu for Restaurant Customers on LOHAS, Herbal Food, and Customer Satisfaction (외식소비자의 건강지향 메뉴가 LOHAS와 약선 음식 및 고객만족에 미치는 영향)

  • Choi, Sung-Woong;Jin, Yang-Ho
    • Culinary science and hospitality research
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    • v.16 no.2
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    • pp.96-109
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    • 2010
  • As a life cycle changed and people who eat out rapidly increased, the imbalance of nutrition through eating out has been suggested as a risk factor for chronic diseases. This has cast light on health-oriented menu for restaurant customers, raising it as a new social issue in the food service and health industry. In light of this situation, this thesis focuses on the relationship among health-oriented menu for restaurant customers, herbal foods and its influence on customer satisfaction to provide useful information on LOHAS and herbal foods. Also, it investigates their vegetable diet, including eating herbal food, and Buddhist temple foods which are in close relationship with health. The results are as follows. First, health orientation had a significant impact on LOHAS. Second, health-oriented menu proved to give significantly positive influence on customer satisfaction by introducing herbal foods. Third, LOHAS gave a significant impact on herbal foods, and by herbal foods, it gave positive influence on customer satisfaction. Finally, the hypothesis which said herbal food has a significant impact on customer satisfaction also had significant influence.

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Effects of Eating Behavior of Preschool Children Using a Direct Visual Stimulating Program on Vegetables and Nutrition Education with Vegetable Playing (유아의 채소섭취행동 강화를 위한 채소노출 및 채소놀이 영양교육 프로그램의 효과)

  • Park, Mora;Kim, Youngjin
    • Journal of the Korean Dietetic Association
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    • v.24 no.4
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    • pp.298-311
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    • 2018
  • The purpose of this study was to examine 1) the relationship between the vegetable eating behavior of care givers and that of children, 2) the effectiveness of nutrition education with vegetable playing using direct visual stimulating programs on vegetable eating behavior of preschool children, and 3) the times and period of nutrition education with vegetable playing for significant changes on vegetable eating behavior. A total number of 56 individuals, aged 42 to 66 months old, participated in this study in which three kinds of vegetables (30 g)/meal were served per individual, and vegetable eating behavior was measured by the residue on the dish during 5 weeks (25 days). To the simple visual stimulating group, vegetable dish was served without education, and other groups included education 1 group (nutrition education 1 time/week), education 2 group (nutrition education 2 times/week), and education 3 group (nutrition education 3 times/week) with simple visual stimulation by the vegetable dish. The results showed 1) the significant relationship (P<0.001) between the vegetable eating behavior of the care giver and that of children by analysis of the questionnaire, 2) the effectiveness of nutrition education using vegetable playing on vegetable eating behavior of preschool children (P<0.05), and 3) the significant changes in vegetable eating behavior by the 3rd week in the education 3 group. This study shows that food neophobia caused behavior problems in children regarding vegetable eating and repeated exposure was able to reduce food neophobia.

Improvement of Emulsion Stability of Food Proteins by Microbial Transglutaminase (미생물유래 transglutaminase를 이용한 식품단백질의 유화안정성 향상에 관한 연구)

  • Lee, Deuk-Sik
    • Korean Journal of Food Science and Technology
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    • v.37 no.2
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    • pp.164-170
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    • 2005
  • To improve functional properties of food proteins, homologous or heterologous ${\beta}-casein$ and 11S globulin(glycinin) from animal and vegetable proteins, respectively, were bio-hybridized using transglutaminase(MTGase). Susceptibility was confirmed by SDS-PAGE, particle size analyzed, and emulsion stability tested using Reddy and Fogler method, To determine how bio-hybridized protein influences emulsion stability, protein bound on oil droplet was investigated using Scanning Electron Microscopy (SEM). formation of bio-hybridized protein band was detected among homologous and heterologous proteins, with heterologous protein forming weak band in oligomer form. Homologous ${\beta}-casein$ protein showed high emulsion stability, while homologous glycinin showed almost no stability. Stability of heterologous ${\beta}-casein$ and glycinin protein was higher than that of glycinin. SEM photographs showed even distribution of bio-hybridized proteins on oil droplet improved stability.

Cytokine modulation in Raw 264.7 macrophages treated with ginseng fermented by Penibacillus MBT213

  • Son, Ji Yoon;Renchinkhand, Gereltuya;Bae, Hyoung Churl;Paik, Seung-Hee;Lee, Jo Yoon;Nam, Myoung Soo
    • Korean Journal of Agricultural Science
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    • v.45 no.4
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    • pp.769-777
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    • 2018
  • The fermentation of Panax ginseng yields many compounds including ginsenosides that have various biological functions. The objective of this study was to investigate the modulation of nitric oxide (NO), Interleukin (IL)-6 and tumor necrosis factor $(TNF)-{\alpha}$ in Raw 264.7 cells treated with ginseng fermented by Penibacillus MBT213. Nitric oxide production in the Raw 264.7 cells treated for 24 hours with fermented ginseng at 3, 7, and 14 days after the treatment decreased to 74, 43, and 36%, respectively, compared with the positive control. The production of IL-6 was inhibited in all the cells treated with fermented ginseng at 3, 7, and 14 days after the treatment except for the positive control. The $TNF-{\alpha}$ production in the Raw 264.7 cells treated with fermented ginseng for 6 hours at 3, 7, and 14 days after the treatment was about 40,000, 85,000 and 65,000 pg/mL, respectively. Moreover, the $TNF-{\alpha}$ production in the Raw 264.7 cells treated with fermented ginseng for 24 hours at 7 and 14 days after the treatment was about 160,000 and 180,000 pg/mL, respectively. However, $TNF-{\alpha}$ production was inhibited in the Raw 264.7 cells at 6 and 12 hours after the treatment with fermented ginseng. herefore, it was confirmed that the immunological activity of the Raw 264.7 macrophages was affected by the treatment with fermented ginseng. It was concluded that ginseng fermented by Paenibacillus MBT213 possesses a potential anti-inflammatory activity and could be used as an ingredient in functional foods and pharmaceutical products.

Studies on the Processing of Sauce by using Red Crab Shell (붉은 대게 껍질을 이용한 소스 제조에 관한 연구)

  • Seoung, Tae-Jong;Choi, Soo-Keun;Byun, Gwang-In
    • Journal of the Korean Society of Food Culture
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    • v.23 no.6
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    • pp.667-680
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    • 2008
  • The moisture contained in conventionally extracted red crab shell samples was lower than than in samples extracted using high pressure. In contrast, ash content increased as the extraction time increased and displayed no significant variation in high pressure extraction. Extraction time was influential, with lower lightness (L-value) being obtained in samples extracted at high pressure as compared to traditional extraction. However, large variation in a- and b-values resulted from traditional extraction. For both traditional and high pressure extraction increases in pH, salinity and saccharide content were noted with increasing extraction time, but these parameters did not vary substantially in red crab shell extracted at high pressure. The mineral content in samples extracted by high pressure was higher than in traditionally extracted samples. The mineral content increased with time, with marginally higher contents of essential amino acids and flavor enhancing amino acids noted following high pressure extraction. The contents of the flavor enhancing amino acids increased from 30?60 min, thereafter decreasing. Assessment of consumer acceptance revealed that, while traditionally manufactured red crab sauce was popular, sauce manufactured using a 60 min high pressure extraction was preferred. Extending the high pressure extraction time to 75 min produced a less sensory acceptable product, due to higher mineral and protein levels.