• Title/Summary/Keyword: improved food

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Quality Characteristics of Centella asiatica Species and Antioxidant Activities of Solvent Extracts (병풀 품종별 품질 특성 및 추출 용매별 항산화 활성)

  • Lee, Kyung-Haeng;Yu, Kwang-Won;Bae, Yun-Jung;Kim, Chae-Young;Joo, Ga-Young;Yun, Ji-Hye
    • The Korean Journal of Food And Nutrition
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    • v.34 no.3
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    • pp.255-262
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    • 2021
  • Centella asiatica (CA) is a vegetable that has been used for medicinal purposes for a long time, but it is not well known in Korea. In this study, the approximate analysis, physicochemical properties, free sugars, free amino acids and minerals of native and improved CA cultivated in Chungju area were measured. And the antioxidant contents and activities of CA solvent extracts were measured. There was no significant difference between native and improved species. As for the characteristics of CA, it was confirmed that the improved species had a large weight, size and a tough texture. Glucose was detected in native CA, fructose, glucose and sucrose were detected in improved species. A total of 15 free amino acids were detected and the content was slightly higher in improved species than in native species. The mineral content in CA was slightly higher in the improved species, and the detected minerals were Na, P, Ca, K, Mg and Fe. Polyphenols, ascorbic acid and flavonoids in each extraction solvent (water, 70% and 100% ethanol) were all higher in the improved species than in native species. And it was found that the antioxidant activities of ethanol extracts were higher than that of water.

Effects of High Pressure Treatment on Cured Colour Development and Residual Nitrite Level in Model System

  • Hong, Geun-Pyo;Park, Sung-Hee;Kim, Jee-Yeon;Ko, Se-Hee;Lee, Sung;Min, Sang-Gi
    • Proceedings of the Korean Society for Food Science of Animal Resources Conference
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    • 2006.05a
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    • pp.325-328
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    • 2006
  • In low nitrite level, treatment of combined with pressure and thermal processing improved cured meat colour comparing with that of only thermal processing. However, visual colour of only pressurised treatment could not be improved at low nitrite level. Pressure treatment could develop cured meat colour when high nitrite level was added. Moreover, pressurisation combined with thermal processing decreased nitrite residuals compared to thermal processing. Therefore the results indicated that pressurisation combined with thermal processing had potential benefits in appearance of cured meat products, promising improved food safety.

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Research on Korean Food Preference and the Improvement of Korean Restaurants for Japanese and Chinese Students in Korea (일본ㆍ중국 유학생의 한국음식에 대한 기호도 및 한식당의 개선방안에 관한 연구)

  • 서경화;이수범;신민자
    • Korean journal of food and cookery science
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    • v.19 no.6
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    • pp.715-722
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    • 2003
  • The purpose of this research is to analyze the preference of Korean food and the satisfaction level with the service of Korean restaurants for Japanese and Chinese students in Korea. Self administered questionnaires were collected from 204 Japanese and Chinese students in Korea. The data were statistically analysed using t-tests, one-way ANOVA and their correlation. The most preferred Korean foods were Bulgogi, Kimgui, Haemul-pajun, Kalbi-tang, Bibimbap, Youkgaejang, Ssalbap, and Aehobarkjeon, in that order. Female students liked Korean food more than male students (p<0.05), and Japanese students more than Chinese students (p<0.001). of foreign students, 44.3% replied that they had teamed about Korean food at school, and 34.48% tried to cook Korean food at home. The foreign students answered that hygiene and cleanness were the most important factors to be improved for Korean restaurant. Other factors to be improved are the variety of menus, price level, taste, service, atmospheres, and quantity, in that order. Korean restaurants should strive to provide a high level of service and improved quality of Korean food, not only to foreign students, but also to other foreigners and tourists to present good image of Korea.

A Survey on the Level of Recognizing Kimchi among Housewives in Seoul Area (서울지역 주부들의 김치에 대한 인지도 조사)

  • Yoon, Sook-Ja;Hwang, Su-Jung
    • Journal of the Korean Society of Food Culture
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    • v.20 no.4
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    • pp.405-415
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    • 2005
  • This study was to investigate firstly a way of promoting health through increasing kimchi ingestion by means of analyzing the points to be improved on the state of taking kimchi, the traditional Korean food, the degree of kimchi likings and the problems of the kimchi on the market, and secondly the other way of having our favorite age-old kimchi quality improved as well as making kimchi inherited by means of collecting useful related materials via questionnaire survey intended for 316 housewives of $20{\sim}50$ years old who lived in Seoul. In the degree of preferences, 92% of them liked kimchi, being considered that higher the age, higher the nostalgia with perception of traditional food. On the problems to be improved of the kimchi on the market, the most answers, 48.73%, said that the hygiene was worrying, indicating that the most overriding problem to be improved in the kimchi on the market was all-out sanitary management. On the thinking of kimchi, the feeling of that the kimchi was the most Korean-like was predominant.

The status and future prospects of the space foods (우주식품 현황과 미래 전망)

  • Kim, Sung-Soo;Yang, Ji-won
    • Food Science and Industry
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    • v.49 no.4
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    • pp.40-63
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    • 2016
  • John Glenn, America's first man to eat anything in the near-weightless environment of Earth orbit, found the task of eating fairly easy. With improved packaging came improved food quality and menus. By the time of the Apollo Program, the quality and variety of food increased even further. Apollo astronauts were the first to have hot water, which made rehydrating foods easier and improved the food's taste. Thermostabilized pouches were also introduced on Apollo. The task of eating in space got a big boost in Skylab. It also had a food freezer and refrigerator a convenience offered by no other vehicle before or since. Two different food systems will be used for future long-duration missions to other planets, one for traveling to and from the distant body and one for use on the surface of the moon or Mars. The transit food system will be similar to the space station food system with the exception that products with three-to five-year shelf lives will be needed. Thus, this part of the trip will be similar to what occurs aboard space missions now. The surface food system, be it lunar or planetary, will be quite different. It will be similar to a vegetarian diet that someone could cook on Earth. Once crew members arrive on the surface and establish living quarters, they can start growing crops. Once the crops are processed into edible ingredients, cooking will be done in the spacecraft's galley to make the food items. Disposal of used food packaging will be an issue since there will be no Progress vehicles to send off and incinerate into the Earth's atmosphere. Packaging materials will be used that have less mass but sufficient barrier properties for oxygen and water to maintain shelf life as those now in use.

The Compents of Free Amino Acids Nucleotides and their Related Compounds in Soypaste made from Native and Improved Meju and Soypaste Product (재래식, 개량식 된장과 시판된장의 유리아미노산, 핵산과 그 관련 물질 함량)

  • Kim, Mee-Jeong;Rhee, Hei-Soo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.17 no.1
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    • pp.69-72
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    • 1988
  • The free amino acids, nucleotides and their related compounds in soypaste made from native and improved meju and soypaste product purchased from the market were investigated by amino acid autoanalzer and HPLC, respectively. The glutamic acid contents in each soypaste were great in order of improved) native ) products. The total free amino acid contents in soypaste made from improved meju showed the highest level and those of the soypaste made from native meju showed the lowest level. GMP content in those made from native and improved me was greatest among the nucleotides and their related compounds.

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Effect of Cordyceps militaris with probiotics supplement on growth performance, meat quality characteristics, storage characteristics and cordycepin content of the breast meat in broilers

  • An, Jae Woo;Lee, Ji Hwan;Oh, Han Jin;Kim, Yong Ju;Chang, Se Yeon;Go, Young Bin;Song, Dong Cheol;Cho, Hyun Ah;Cho, Jin Ho
    • Korean Journal of Agricultural Science
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    • v.48 no.3
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    • pp.423-432
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    • 2021
  • This experiment was conducted to investigate the effect of Cordyceps militaris with probiotics (CMP) supplementation on the growth performance, meat quality and storage characteristics, and cordycepin content in the meat. Sixty one-day-old broilers (Ross 308) were allotted to two treatment groups of 30 each. In addition, six broilers were randomly assigned to a cage in the two treatment groups. The two dietary treatments were as follows: Control (CON) and basal diet + 0.5% of CMP. Body weight and feed intake were measured on the 1st, 14th, and 28th days from the start of the experiment. On days 1 - 14, the supplementation of CMP improved (p < 0.05) the body weight gain (BWG) and feed conversion ratio (FCR). Additionally, the feed intake (FI) and FCR scores in the CMP groups improved (p < 0.01) compared to the CON during the entire period. For the meat quality characteristics, water holding capacity (WHC), cooking loss (CL), redness (a*) in meat color value, and shearing force (SF) for the CMP group were improved (p < 0.01) compared to the CON group. For the meat storage characteristics, pH and thiobarbituric acid reactive substances (TBARS) were improved (p < 0.01) when the broilers were fed CMP compared to the CON group. Broilers fed CMP had a higher (p < 0.01) cordycepin content in the meat compared to the CON group. In conclusion, CMP improves the growth performance and meat quality of broilers.

The Impact of Nutrition Education on Adolescents: Its Effect on Student′s Knoeledge Attitudes and Behaviors

  • Jang, Hyun-Sook
    • Journal of Community Nutrition
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    • v.3 no.1
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    • pp.30-35
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    • 2001
  • The purpose of this study was to determine the effect of nutrition instruction using a curriculum guide on nutrition knowledge attitudes and food behaviors of students in a junior high school home economics course. We used three instruments co collect data: a nutrition knowledge test, a food and attitude instrument containing four scales, and a two-part food behavior assessment form A quasi-Solomon four -groups experimental design was used One experimental group was pretested taught nutrition via the curriculum, and posttested A Second experimental group which was not pretested was taught nutrition via the curriculum and posttested One control group was pretested and posttested and a second control group was only posttested Neither control group receive food and nutrition instruction until after the study was complete The results indicate that the experimental group had significantly improved knowledge scores and improved attitude scores on the scale entitled Eating New Foods Nutriton Affects Health Caring about Nutrition Significant changes were observe in posttest scores on the food behavior assessment form Key findings useful in understanding the impact of education on adolescent food choices were that 1) study participants nutrition knowledge improved 2) their attitudes toward nutrition became more positive 3) their intention to include more high-nutrient foods in their diet increased significantly.

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Effect of Different Brine Injection Levels on the Drying Characteristics and Physicochemical Properties of Beef Jerky

  • Kim, Dong Hyun;Shin, Dong-Min;Lee, Jung Hoon;Kim, Yea Ji;Han, Sung Gu
    • Food Science of Animal Resources
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    • v.42 no.1
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    • pp.98-110
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    • 2022
  • Meat jerky is a type of meat snack with a long shelf life, light weight, and unique sensory properties. However, meat jerky requires a long manufacturing time, resulting in high energy consumption. In this study, beef jerky was prepared by injecting different concentrations of brine at different hot-air drying times (0-800 min). When the brine injection levels were increased to 30%, the drying characteristics of beef jerky, such as drying time and effective moisture diffusivity, were significantly improved owing to the relatively high water content and the formation of porous structures. The physicochemical properties (e.g. meat color, porosity, shear force, and volatile basic nitrogen) of the beef jerky injected with 30% brine were improved owing to the shortened drying time. Scanning electron microscopy images showed that the beef jerky structure became porous and irregular during the brine injection process. Our novel processing technique for manufacturing beef jerky leads to improved quality characteristics and shortened drying times.

Standardization of Korean Soysauce -Part I. Studies on the Changes of Components in the Process of the Conventional Soysauce and the Improved Soysauce Preparation- (한국(韓國)간장의 표준화(標準化) -제1보 메주와 개량국자(改良麴子)에 의(依)한 한국(韓國)간장 제조시(製造時) 성분변화(成分變化)에 관(關)한 연구(硏究)-)

  • Lee, Chong-Jin;Koh, Han-Soo
    • Korean Journal of Food Science and Technology
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    • v.8 no.4
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    • pp.247-252
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    • 1976
  • The conventional meju samples were collected from various districts and the improved kokja were prepared in laboratory. The changes of components in the process of the conventional soysauce and the improved soysauce preparation was studied. The experimental results are as follows; 1. The conventional soysauce is less than the improved soysauce in the extent of utility of total nitrogen. 2. The former is less than the latter in amino-type nitrogen content.

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