• 제목/요약/키워드: white sugar

검색결과 209건 처리시간 0.021초

Availability of Sugar Solutions for Colony Development and Progeny-Queen Production of the European Bumblebee, Bombus terrestris

  • Yoon, Hyung-Joo;Lee, Kyeong-Yong;Kim, Mi-Ae;Han, Sang-Mi;Ahn, Mi-Young;Park, In-Gyun
    • International Journal of Industrial Entomology and Biomaterials
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    • 제24권1호
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    • pp.29-35
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    • 2012
  • Bumblebees are widely used to pollinate various crops, especially tomato, in greenhouses and fields. Here, we investigated whether different sugar solutions have any effects on the oviposition and colony development of Bombus terrestris queens. The types of sugar solution used were a white sugar solution, brown sugar solution, dark brown sugar solution, and prepared sugar solution; all solution contained with a 40% sugar concentration and 0.3% sorbic acid. Among these sugar solutions, B. terrestris queens reared on the white sugar solution exhibited the best results; the rates of oviposition, colony foundation and progeny-queen production were $75.0{\pm}11.0$, $33.0{\pm}9.6$ and $21.7{\pm}7.3$, respectively, which corresponded to 1.1-33.0-fold increases over the results of other sugar solutions. Queens reared on the prepared sugar solution did not found any colonies. The death rate within one month was lowest for the queens reared on the white sugar solution at $26.1{\pm}10.9%$, which was 1.2-2.0-fold lower than the rate for the other sugar solutions. Furthermore, the numbers of progeny produced by queens reared on the white sugar solution, $131.4{\pm}38.8$ workers and $51.0{\pm}40.6$ queens, were also higher, corresponding to 1.1-1.2-fold increases compared to queens raised on the other sugar solutions. Therefore, the white sugar solution was the favorable sugar solution for the egg-laying and colony developmental characteristics of B. terrestris queens.

국내산 사탕무로 제조한 천연당과 시판 제품과 비교 분석 (Quality Characteristics of Natural Sugars Prepared from Domestic Sugar Beet and Commercial Sugars)

  • 박준희;이수원;문혜경;이원영
    • 한국식품조리과학회지
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    • 제26권5호
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    • pp.655-664
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    • 2010
  • This work aimed to investigate the physiochemical properties of commercial sugars (white sugar, dark brown sugar, organic sugar, and muscovado) and sugar beet. Percentages of crude protein, crude fat and crude fiber in sugar beet were 4.06, 6.36 and 0.02%, respectively, and the degrees of sugar of white sugar and sugar beet were $93^{\circ}$ Brix and $78^{\circ}$ Brix, respectively. L(lightness) value scores of white sugar were higher while the turbidity of sugar beet was higher. White sugar, dark brown sugar, and organic sugar were composed of only sucrose, whereas muscovad and sugar beet were composed of fructose, glucose, and sucrose. The highest organic acid content was observed in sugar beet. The contents of amino acids in sugar beet were in the following order: proline ($161.23\;{\mu}g$/100 g) > aspartic acid ($161.23\;{\mu}g$/100 g) > leucine ($36.93\;{\mu}g$/100 g) > alanine ($17.40\;{\mu}g$/100 g). There were 16 free amino acids in sugar beet. The highest mineral contest was observed in sugar beet in the order of K > Ca > Na > Mg. This result indicates that sugar beet can be prepared by considering the characteristics of natural sugar materials.

木瓜片의 재료배합비에 따른 Texture 특성 (Texture Characteristics of Mokwapyun as affected by Ingredients)

  • 이지연;이효지
    • 한국식품조리과학회지
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    • 제10권4호
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    • pp.386-393
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    • 1994
  • This study aims to establish the most favorable recipe for Mokwapyun. The ingredients were changed in a variety aspects. The kind and amount of sugar and starch are following: white sugar, brown sugar, honey(4T, 5T); white sugar and honey, brown sugar and honey(2T+2T, 3T+1T, 3T+2T). There are potato starch and mungbean starch. In this, the amount of starch to water are 4t to 3t and 5t to 3t. The moisture content of Mokwa was 76.23%, and that of Mokwapyun made of mungbean starch 41~50%, and the Mokwapyun made of potato starch was 38~47%. The pH of Mokwa juice was 3.15~3.43. The brix of Mokwa juice was 5.3%, and that of Mokwapyun made of potato starch was 43.1~45.9%, and the Mokwapyun made of mungbean starch was 40.1~46.5%. Mokwapyun tasted the best when it was made of potato starch(starch to water=4t to 3t) mixed white sugar(3T) and honey(1) than that of made of one kind of sugar, and was higer evaluated the texture.

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당분류의 초지연제를 이용한 콘크리트의 응결 및 역학적 특성 (Setting md Mechanical Properties of Concrete Using Saccharic Type Super Retarding Agent)

  • 한천구;한민철;윤치환;심보길
    • 콘크리트학회논문집
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    • 제14권4호
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    • pp.589-596
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    • 2002
  • 본 연구에서는 당분류의 초지연제를 중심으로 굳지 않은 콘크리트의 유동성, 공기량, 응결특성 및 경화 콘크리트의 강도특성을 분석하였다. 실험결과 먼저, 굳지 않은 콘크리트의 슬럼프 값은 초지연제의 혼입률이 증가함에 따라 다소 증가하는 것으로 나타난 반면, 공기량은 감소하는 것으로 나타났다. 응결특성으로는 혼입률이 증가함에 따라 응결시간이 비약적으로 지연되어 혼입률 0.3%에서 글루콘산은 10일 이상, 슈크로스, 백설탕 및 황설탕은 10일 이상에서 종결이 측정되었다. 또한, 종결이후 압축강도는 초지연제 혼입시 초기강도는 플레인에 비해 낮게 측정되었지만 3일 재령 이후에서는 플레인과 동등하거나 그 이상으로 나타났다. 종합적으로 당분류의 백설탕은 가격이 저렴하면서도 응결지연 특성 및 강도특성에서 여타의 초지연제에 비해 커다란 문제점이 없는 것으로 분석되어, 향후 내구성 등 제반특성이 심도 있게 검토된다면 우수한 초지연제로서의 활용가능성을 확인 할 수 있었다.

리트벨트법을 이용한 당류계 초지연성 혼화제 혼입 시멘트 페이스트의 수화생성물 정량 분석 (Quantitative Analysis of Hydrate of Sugar-based Super Retardign Agent Mixed Cement Paste Using Rietveld Method)

  • 현승용;후윈야오;김수호;김종;한민철;한천구
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2021년도 가을 학술논문 발표대회
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    • pp.74-75
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    • 2021
  • This study attempted to study the setting time and compressive strength according to the sugar type through XRD. Setting time was found to be delayed the most when mixing white sugar, and setting time was promoted when mixing Saccharin and Aspartame. It was found that when white sugar and Grosvener siraitia were mixed, the compressive strength was higher than that of Control. Aspartame the age passed, C3S decreased and Ca(OH)2 increased.

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경북 일부 어린이급식소에서 제공되는 간식의 섭취형태 및 당 함량 조사 (Investigation of Intake Patterns and Sugar Content of Snacks Provided at some Children's Cafeterias in Gyeongbuk)

  • 심현미;이미정;박세미;배미현;이자영;유선일;이경아
    • 급식외식위생학회지
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    • 제2권1호
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    • pp.51-57
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    • 2021
  • The purpose of this study was to analyze the amount of sugar from the afternoon snack menu of childcare facilities in Gyeongsangbuk-do. The amount of sugar was analyzed for afternoon snacks provided by childcare facilities between March and April 2016. The snacks provided were the same for processed and non-processed foods at 50.0% respectively. White milk accounted for the largest portion with 26.4%, followed by fruits with 19.9% and grains (sweet potatoes, rice cakes, etc.). It has been confirmed that the larger the facility, the lower the frequency of provision of non-processed foods, and the higher the provision of processed foods (p<0.05). Snacks served as non-processed foods showed the highest frequency of fruits and sweet potatoes. On the other hand, processed foods provided many sugar-rich products, such as liquid yogurt, hot cakes, and cereal, excluding white milk. The average sugar content was highest in processed milk products (13.9 g), followed by white milk (8.6 g), bread and snacks (8.0 g), other (4.6 g), and mixed grains (1.6 g). Of the total 216 snacks, banana flavored milk had the highest sugar content of 27.0 g, followed by strawberry milk (15.0 g) and castella (21.6 g). The findings are expected to be used as basic data for choosing the right snacks provided by childcare facilities and practicing reducing sugar intake.

설탕 대체제로 야콘 농축액을 사용하여 제조한 식빵의 저장 중 물성변화 (Quality Characteristic Changes during Storage of Bread Prepared by Addition of Yacon Concentrates as Sugar Substitute)

  • 이규희;김원모;김미경
    • 한국식생활문화학회지
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    • 제28권1호
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    • pp.107-113
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    • 2013
  • Yacon (Smallanthussonchifolius) is a root crop that contains high amounts of fructo-oligosaccharides (FOS). FOS has a sweet taste, is low in calories, and is known to promote intestinal tract health. In this study, various yacon concentrates were substituted for sugar in white pan bread to obtain healthy benefits from the use of FOS. The quality characteristic changes during storage of the white pan breadswith 0, 25, 50, 75 and 100% of added yacon concentrates instead of sugar were investigated. During storage, the water contents and water activities of the breads made with high amounts of yacon concentrates changed less than in those made with only sugar. The hardness and chewiness of the breads made with high amounts of yacon concentrates had lower values than those made with only sugar. Thus, bread made with yacon concentrates might exhibit increased moisture retention and decreased aging velocity. The substitution of yacon concentrates for sugar in pan bread improved the bread quality.

경기 및 인천지역 영양(교)사의 당류 저감화 인식과 첨가당 사용실태 (Perception of Sugar Reduction and Added Sugar Use among Dietitians or Nutrition Teachers in Gyeonggi and Incheon)

  • 김혜지;최미경;김명희
    • 대한영양사협회학술지
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    • 제24권1호
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    • pp.62-74
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    • 2018
  • The purpose of this study was to investigate dietitians or nutrition teachers' perception of sugar reduction and usage of sugars in school meal service. A survey was conducted for dietitians or nutrition teachers at elementary, middle, and high schools in Gyeonggi and Incheon. Survey data were analyzed according to the experience period and school types of dietitians or nutrition teachers. The numbers of subjects according to work experience period were 134 (44.2%) for <5 years, 68 (22.4%) for ${\geq}5$ and <10 years, and 101 (33.3%) for ${\geq}10years$. Among the subjects, 168 (55.4%) were nutrition teachers at kindergarten/elementary schools, and 135 (44.6%) were at middle/high/special schools. Perceptions of sugar reduction programs were higher in kindergarten/elementary schools than in middle/high/special schools. The perception of added sugar use increased with more work experience, and interest in sugar reduction was higher in kindergarten/elementary schools than in middle/high/special schools. Practice for added sugar reduction increased with more work experience, and the most common method for reducing sugar was use of natural sugars. The main reason for not reducing added sugars in school meals was due to preference. Nutritional education for students increased with more work experience and was higher in kindergarten/elementary schools than in middle/high/special schools. The major nutritional education methods were using school homepage (37.4%), sending family letters (37.4%), and using principle's discretion time (18.4%). Organic sugar and rice taffy were used more at kindergarten/elementary schools, and white sugar, brown sugar, and white syrup were used more at middle/high/special schools. The most common menu using added sugars was stir-fried dishes (stir-fried pork, chicken, and vegetables).

QUALITY OF KOREAN GINSENG DRIED WITH A PROTOTYPE CONTINUOUS FLOW DRYER USING FAR INFRARED RAY AND HEATED-AIR

  • Park, S. J.;Kim, S. M.;Kim, M. H.;Kim, C. S.;Lee, C. H.
    • 한국농업기계학회:학술대회논문집
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    • 한국농업기계학회 2000년도 THE THIRD INTERNATIONAL CONFERENCE ON AGRICULTURAL MACHINERY ENGINEERING. V.II
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    • pp.388-395
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    • 2000
  • This study was performed to examine the effects of infrared (IR)/heated-air combination drying on some quality attributes of Korean white ginsengs. Ginseng roots were dried in a dryer where both the far infrared ray and heated-air are available as drying energy sources. Diametral shrinkage, external color, total saponin content, and ginsenosides and free sugar composition of the IR/heated-air combination dried ginsengs were measured and compared with those of commercial white ginseng products. The external color became lower in lightness and higher in saturation as the IR radiating plate temperature increased. IR/heated-air combination dried white ginsengs at IR plate temperature of 100$^{\circ}C$ was comparable to the commercial white ginseng products in color characteristics. Diametral shrinkage ratios ranged from 20 to 36% and appeared to be independent on the different drying methods. No definite evidence could be found whether the IR/heated-air combination drying and the conventional. hot-air drying practice resulted in white ginsengs having different ginsenoside contents and compositions. No conclusion could be made on whether the various drying treatments used in the study had effects on the free sugar contents and compositions of white ginsengs.

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흰깨, 검은깨, 들깨 중의 무기질 및 Saponin 함량 (Mineral and Saponin Component in white Sesame, black Sesame and Perilla Seed)

  • 김혜자
    • 대한가정학회지
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    • 제24권3호
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    • pp.79-84
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    • 1986
  • the purpose of this paper is to study on the proximate composition, mineral and saponin content in white sesame, black sesame, and perilla seed. For this purpose, we have compared six different materials: white-raw-sesame, white-roast-sesame, black-raw-sesame, black-roast-sesame, raw-perilla seed and roast perilla seed, and have come to the following results. The crude fat content was the highest in white-raw-sesame(55.3%). In all the six samples, the crude fat content in raw seeds was all higher than that in roast seeds. The crude protein content was the highest in the roast perilla seed(24.6%), and in the six samples, the crude protein content in roast seeds all higher than that in roast seeds. The total sugar content was found to be the highest in the roast perilla seed(8.29%). The reducing sugar content was higher in raw perilla seed(1.57%) than in other sample materials. The ash content was the highest in black raw-sesame(5.93%), and that percentage rates was the same as that of FAO and of Japan. Minerals like Cd. Mn. Cu. Na. Mg. Pb. and Ca. were found to be contained more in black sesame than in other sample materials. The minerals contained most in white sesame were Zn.(61.6ppm) and Fe(49.4ppm), and K was contained a little more in perilla seed than in the others. The sample materials which contain saponin most were white-roast-sesame(0.34%) and black-roast-sesame(029%).

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