• Title/Summary/Keyword: Fresh food

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Effect of Browning Inhibitors on Quality Property of Fresh-Cut Strawberries (갈변억제제 처리가 신선 절단 딸기의 품질 특성에 미치는 영향)

  • Chung, Hun-Sik;Moon, Kwang-Deog
    • Food Science and Preservation
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    • v.19 no.1
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    • pp.26-30
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    • 2012
  • The effect of browning inhibitors on quality properties of fresh-cut strawberries was investigated. Half-cut strawberries were treated with dipping solutions alone and with combinations of 1% ascorbic acid, 1% citric acid, 1% sodium chloride, and 1% magnesium chloride, were packaged with low density polyethylene bags, and were kept for 24 hours at $4^{\circ}C$. The levels of oxygen and carbon dioxide in the packages of the samples treated with the combined solutions were the highest and the lowest, respectively. The loss of L value and flesh firmness of fresh-cut strawberries was retarded by the combined solutions than by the dipping solutions alone. The soluble solids and pH were not affected by the browning inhibitor. These results suggest that mixture of ascorbic acid, citric acid, sodium chloride, magnesium chloride may prevent browning and softening of fresh-cut strawberries.

Improving the Usability of a Fresh Food E-commerce Site: Practical Application of the Heuristic Evaluation and Think Aloud Method (휴리스틱 평가와 발성사고법을 이용한 농식품 전자상거래 사이트 사용성 평가)

  • Lee, Dong-Won;Kim, Kyung-Min;Oh, Sang-Heon;Moon, Jung-Hoon
    • 한국HCI학회:학술대회논문집
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    • 2008.02b
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    • pp.608-613
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    • 2008
  • Web usability for e-commerce sites becomes a more important issue as e-commerce gains its popularity. As for fresh foods, consumers are especially sensitive to the quality of information during transaction process. Successful fresh food e-commerce sites, such as Wine. com and Tesco, identified regular usability testing as part of key success factors. This paper aims to identify processes for evaluating usability of fresh food e-commerce sites and provide recommendations to improve usability. The study aims to evaluate Web usability of selected Web sites using heuristic evaluation to provide objective Web usability analysis for each transaction process and think aloud method to understand how users actually evaluate the Web site.

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Effects of Medicinal Herb Extracts and Heat and Coating Treatments on the Browning Degree of Fresh-Cut Apples (한약재 추출물, 가열 및 코팅 처리가 신선절단 사과의 갈변도에 미치는 영향)

  • Chung, Hun-Sik;Lee, Joo-Baek;Moon, Kwang-Deog
    • Food Science and Preservation
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    • v.19 no.6
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    • pp.813-817
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    • 2012
  • The effects of dip treatments of chemicals (ascorbic acid, cystein, sodium chloride, magnesium chloride, calcium chloride, histidine: 1% solution) and medicinal herbs (Pueraria thunbergiana, Angelica gigas, Dioscorea japonica, Lindera strychifolia, Cnidium officinale, Astragalus membranaceus: 1% extracts), heat shock ($40-60^{\circ}C$ water), and edible coating (albumin, dextrin, sucrose poly ester, whole soy flour: 0.5-4% solution) on the browning degree of fresh-cut 'Fuji' apples were studied. Among the each treatment methods, the surface browning of fresh-cut apples was best retarded by calcium chloride dip, Astragalus membranaceus dip, $45-50^{\circ}C$ heat shock, coating with 3% dextrin or 1% whole soy flour. The results suggest that the treatments of medicinal herbs extracts, heat shock, and edible coating can be used as alternative for the use of chemical agents for the antibrowning of fresh-cut apples.

Quality Changes of Fresh Garlic Paste during Storage (생마늘 페이스트의 저장 과정 중 품질 변화)

  • 정재홍
    • The Korean Journal of Food And Nutrition
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    • v.11 no.3
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    • pp.278-282
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    • 1998
  • An attempt was made in this study to investigate the possibility of processing fresh garlic into an fresh garlic paste. The characteristics of fresh garlic paste and processing properties were investigated and the effect of salt, maltodextrin, acid and heat on product quality during storage were studied. After the processed fresh garlic paste was stored at 3$0^{\circ}C$ and 5$^{\circ}C$ without light for 6 months. The weight and pH of colve were 93% of total and 5.95, respectively. Addition of 10% salt, 10% maltodextrin, 01.% dl-malic acid, and heat on fresh garlic paste maintain color of fresh garlic could be preserved for 6 months at 5$^{\circ}C$. Judging from thiosulfinate and pyruvate content, and sensory evaluation, quality damage of fresh garlic paste which was make of 10% salt, 10% maltodextrin, 0.1% dl-malic acid, and heat on fresh garlic paste hardly occurred at 5$^{\circ}C$ but occurred considerable level at 3$0^{\circ}C$ during storage for 6 months.

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Optimization of the Addition of Jinuni Beans to Chocolate Using the Response Surface Methodology (쥐눈이콩 첨가량을 달리한 초콜릿 제조 조건의 최적화)

  • Joo, Na-Mi;Kim, Bo-Ram;Pyo, Seo-Jin
    • Journal of the Korean Dietetic Association
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    • v.16 no.1
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    • pp.13-21
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    • 2010
  • The purpose of this study was to determine the optimal mixing conditions of different amounts of Jinuni beans and fresh cream for the preparation of Jinuni bean chocolate. An experiment was designed using the central composite design of the response surface, which required 10 experimental treatments including 2 replicates for the Jinuni bean and fresh cream. The compositional and functional properties of the treatments were measured and these values were applied to the mathematical model. A canonical form and perturbation plot showed the influence of each ingredient on the mixture products. The color value L (Lightness) decreased with an increase in the amount of added Jinuni bean but the color value a (redness) and color value b (yellowness) did not change. In addition, the hardness value increased with the addition of the Jinuni bean. The results of the sensory evaluation showed very significant differences in the values of the texture (p<0.01), taste (p<0.05), and overall quality (p<0.01). As a result, the optimum formulations as determined by the numerical and graphical methods were 27.98 g of Jinuni bean and 67.0 g of fresh cream.

Inactivation of Agrobacterium tumefaciens Inoculated on Fresh Radix Ginseng by Electron Beam Irradiation and Aqueous Chlorine Dioxide Treatment

  • Chun, Ho-Hyun;Kim, Ju-Yeon;Song, Kyung-Bin
    • Journal of Applied Biological Chemistry
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    • v.51 no.3
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    • pp.117-122
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    • 2008
  • Inactivation of Agrobacterium tumefaciens was evaluated on the inoculated fresh Radix Ginseng by electron beam irradiation or aqueous chlorine dioxide ($ClO_2$) treatment. Two groups of fresh ginsengs were prepared and inoculated with A. tumefaciens. One group was then irradiated at 0, 2, and 4 kGy using an electron beam accelerator, and the other group was treated with 0, 50, and 100 ppm of aqueous $ClO_2$. Microbiological data indicated that populations of A. tumefaciens significantly decreased with increasing irradiation dose or aqueous $ClO_2$ concentration. In particular, A. tumefaciens was eliminated by irradiation at 4 kGy, and 100 ppm $ClO_2$ treatment reduced the populations of A. tumefaciens by 1.44 log CFU/g. These results suggest that electron beam irradiation or aqueous $ClO_2$ treatment can be useful in improving the microbial safety of fresh ginsengs during storage.

Characteristics of pork belly consumption in South Korea and their health implication

  • Choe, Jee-Hwan;Yang, Han-Sul;Lee, Sang-Hoon;Go, Gwang-Woong
    • Journal of Animal Science and Technology
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    • v.57 no.6
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    • pp.22.1-22.7
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    • 2015
  • Fresh pork belly is a highly popular meat in South Korea, accounting for 59 % of the approximately 100 g of meat per capita that is consumed daily. Fresh pork belly offers not only high-quality protein from the lean cuts but also substantial micronutrients including fat-soluble vitamins and minerals. However, fresh pork belly generally consists of about 30 % fat, with saturated fatty acids representing half of this value. Excessive consumption of saturated fatty acids increases total cholesterol, low-density lipoprotein-cholesterol, and triglycerides while decreasing high-density lipoprotein-cholesterol, raising concerns about an increased risk of hyperlipidemia, followed by cardiovascular diseases. In this review, we discuss the consumption and production trends in South Korea, the general characteristics, and health issues related to fresh pork belly to delineate the features of pork production and consumer welfare.

Effectiveness of the Preprocessed Foods on Productivity and Satisfaction in School Foodservices (전처리 식재료 사용이 학교급식 생산성과 만족도에 미치는 영향)

  • Yun, Hye-Jung;Chang, Hye-Ja
    • Journal of the Korean Dietetic Association
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    • v.15 no.3
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    • pp.262-277
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    • 2009
  • Fresh-cut foods have been widely used in the school foodservice industry due to their convenience and saving effects of labor and working hours. This study evaluated the effectiveness of using fresh-cut foods in school foodservice with respect to cost efficiency, customer satisfaction, employee satisfaction, and productivity. First, in terms of cost efficiency, the cost of the fresh-cut food per meal price significantly increased by 2.6% via the new production plan. Meanwhile, the costs of labor and food wastes significantly decreased by 3.0% and 0.3%, respectively, after implementing the new plan. Second, customer satisfaction towards foodservice significantly increased, from 2.94 points prior to the new plan to 3.45 points. Third, foodservice productivity such as of the number of meals per full-time equivalent employee increased by 5.7 meals, from 143.0 meals to 148.7 meals after intervention. The productivity index of work hours for producing a meal also increased and was reflected by a work time reduction of 0.77 minutes, specifically from 4.25 minutes to 3.48 minutes. The labor cost per meal also decreased by 29.9 won, from 331.91 won to 301.97 won, but there was no significant difference. Through these results, we identified that using pre-process foods in school foodservice has positive effects on labor saving, customer satisfaction, and employee work satisfaction.

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Measurement of the proximate components of fresh ginseng (Panax ginseng C.A Meyer) using Near-Infrared Reflectance Spectroscopy (근적외선(NIR) 분광법에 의한 수삼의 성분 측정)

  • Chang, Kyu-Seob;Lee, Eui-Suk;Lee, Gyu-Hee
    • Korean Journal of Agricultural Science
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    • v.28 no.2
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    • pp.116-124
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    • 2001
  • The measurement values of proximate composition in fresh ginseng could provide the important information for red ginseng processing. The measurement of them were performed by near-infrared (NIR) spectroscopy. Linear regression model for the predicting of proximate composition was developed and validated. The regression values of moisture, crude starch, crude ash, crude fiber, calcium, and magnesium contents were shown as 0.918, 0.951, 0.897, 0.728, 0.933, and 0.390, respectively. Therefore, the proximate composition of fresh ginseng could be measured by NIR, feasibly.

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Effects of Worm Casting level on Growth Characteristics and Yield of Food Canna in Jeju Island (제주지역에서 지렁이분 시비량 차이가 식용 Canna의 생육특성 및 수량에 미치는 영향)

  • Song, Chang-Khil;Cho, Nam-Ki;Cho, Ik-Hwan;Kang, Bong-Kyoon;Ko, Mi-Ra;Park, Sung-Jun
    • Korean Journal of Organic Agriculture
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    • v.12 no.1
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    • pp.93-99
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    • 2004
  • This study were conducted to determine the optimum warm casting rate(0, 100, 200, 300, 400, 500kg/10a) for the yield of food canna in jeju island. The plant height was ranged from 109.4 to 1347cm as organic fertilizer of worm casting increased from 0 to 500kg/10a, but it was no significance between 400 to 500kg/10a. Leaf length, leaf width, number of leaves, number of tillers and bulb per plant were shown higher as the amount of worm casting was increased. Stem diameter were the same trend with plant height response. Fresh yield of food canna increased significantly 134 to 22.6MT/ha as fertilizer rate increased from 0 to 500kg/10a. Fresh weight of above-ground pan and blub were shown the same trend with fresh yield of food canna.

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