• Title/Summary/Keyword: food materials

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Effects of Raw Materials and Various Molds on the Production of Koji

  • Yi, Sang-Duk;Yang, Jae-Seung;Lee, Gyu-Hee;Park, Seong-Hyun;Oh, Man-Jin
    • Preventive Nutrition and Food Science
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    • v.6 no.2
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    • pp.101-106
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    • 2001
  • Alpha-amylase and glucoamylase activities were higher in koji with 40% water than that with 30 and 50% water, and A. oryzae exhibited very high alpha-amylase and glucoamylase activities compared to A. sojae and A. niger. Acidic, neutral and alkaline protease activities also showed higher activities in koji prepared with flour, Korean wheat powder and soybean powder with 40% water based on the weight of the sample. Alpha-amylase, acidic, neutral and alkaline protease activities of all the koji samples according to incubation periods increased until 3~4 days of incubation and maintained nearly the same level or slightly decreased after 5 days of incubation. The protease activities of A. oryzae and A. sojae showed nearly the same trend regardless of differences in substrate conditions and koji materials, but those of A. niger showed a lower activity than those of A. oryzae and A. sojae. These results suggest that the preparation of koji is possible with Korean wheat powder and soybean powder and A. sojae can be utilized as a new strain for fermented foods using soybean as the main materials to increase functional properties and produce products having a new taste and flavor.

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Development of Nutrition Education Materials for Prevention and Management of Diabetes Mellitus for Older Adults

  • Kim, Kyungwon;Hyunjoo Kang;Yun Ahn;Kim, Se-Hwa;Kim, Hee-Seon
    • Journal of Community Nutrition
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    • v.4 no.2
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    • pp.118-129
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    • 2002
  • Nutrition is important in the management of diabetes mellitus, however, there are few little education materials specifically designed for older adults. The objective of this study was to develop nutrition education materials for prevention and management of diabetes moll for older adults. Materials developed were a booklet and four leaflets. The contents of materials were based on lesson plans. After several revisions of the draft of materials, illustrations and icons appropriate to the contents were designed using illustrator 9.0 and Photoshop 6.0. The booklet was composed of five chapters and 40 pages. The first chapter began with an introduction about diabetes and diabetes management by diet, exercise and medication. The second chapter dealt with ideal body weight, calculation of adequate caloric intake and food exchange list. The third chapter provided information for meal planning and sample menus. The fourth chapter focused on practical tips on nutritional care of diabetes, by providing tips on reducing sugars, fat and salt, and suggestions on eating for special occasions. The fifth chapter dealt with information in case of low blood sugars, exercise and foot care. The topics of the four leaflets were “Diabetes, what is it and care”, “Food exchange list and meal planning”, “Healthy eating for diabetes”, “Special care for diabetes low blood sugars, exercise and foot care” Each leaflet was composed of six sections and was printed in large paper (B4 size) for older adults. The draft of educational materials were re-viewed by four nutrition professionals and finally pilot-tested with ten adults aged 50 and older. The characteristics of the developed materials are as follows, i) messages are delivered using simple, specific information, ⅱ) messages focused on practical applicable tips, ⅲ) various pictures, illustrations and artwork were created and inserted to enhance understanding and interest, ⅳ) sections including risk factor assessment, calculation of ideal body weight and meal planning were designed to induce the user's participation, ⅴ) sample menus and food pictures were inserted in the booklet, vi) characteristics of older adults and transformed characteristics are diversely used to help the user feel familiarity. These materials are self-explanatory and can be used by older adults. These materials also can be used widely in nutrition education at public health centers or senior centers.

A study on the present situation of utilization of broth materials for the development of broth product (육수제품 개발을 위한 육수 재료 이용의 현황 조사)

  • Lee, Jong-Mee;Shin, Kye-Sook;Choi, Sung-Eun
    • Journal of the Korean Society of Food Culture
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    • v.14 no.1
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    • pp.57-65
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    • 1999
  • This study was examined the current situation of utilization of meat broth materials for the development of various broth products. The 500 housewives living in Seoul were asked. The results obtained as follows; Beef(93%) was used most frequently for making broth. In order to reduce rancid smell of broth, garlic(72%), ginger(68%), green onion(60%), onion(58%), black pepper(44%), radish(25%) were used. Most housewives used beef three or four times a month and hardly used chicken or pork for making broth. Commercial broth materials were used two or three times a month. For making broth the bricket of beef, a whole or half chicken and bones of pig were consumed most frequently. Before making broth, from flesh only blood was removed. Also housewives slightly boiled bone blood-removed in water. The older age is, the longer marriage duration is, the higher monthly income and education level is, the more beef was consumed. The higher the education level is, the more vegetables like garlic, ginger, green onion, onion, radish were used. It is suggested that in order to develop various broth products made of natural materials, the characteristics of preferred broth materials should be defined and it is necesarry to accomplish the preference test of preferred broth products.

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Evaluation of Food Safety Performance and Food Storage Condition in Restaurants against Climate Change (기후변화 대응 식품접객업소 식재료 안전관리 수행도 및 보관실태에 관한 연구)

  • Lee, Jung-Su;Bae, Young-Min;Yoon, Jae-Hyun;Kim, Bo-Ram;Yoo, Jin-Hee;Hyun, Jeong-Eun;Jung, Soon-Young;Cha, Myung-Hwa;Ryu, Kyung;Park, Ki-Hwan;Lee, Sun-Young
    • Journal of Food Hygiene and Safety
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    • v.29 no.3
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    • pp.195-201
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    • 2014
  • This study was conducted to investigate the current status of hygiene performance and food preparation/storage condition in restaurants during the summer season in order to evaluate the sanitary management systems in restaurants against climate change. Total 30 restaurants located in Gyeonggi participated in a survey in which they were asked current hygiene performance, food preparation/storage condition, and purchasing practices for 5 food ingredients. As results, regarding the performance degree of respondents on food hygiene management, the average scores of 9 questions were well over 4 points. However, only 6.83% of the respondents claimed that they use sanitizers (chlorine) to disinfect food ingredients. About food storage condition, a high proportion of respondents said that they store food materials in plastic bags or airtight containers following pretreatment and use refrigerator for the storage of pretreated food materials. However, 5.55% and 14.85% of respondents answered that they store pretreated food materials in the kitchen or inside of dining room, respectively. Respondents (21.50%) answered that they store pretreated food materials for more than 6 hours before cooking. Therefore, food materials need to be disinfected properly with sanitizer to remove microbial contamination and stored at refrigerator using closed bags or containers before cooking in order to prevent foodborne disease in restaurants especially during summer season.