• Title/Summary/Keyword: sugar analysis

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The Effect of Sugar Intake on Attention Deficit Hyperactivity Disorder of School Children (국민학교 아동의 설탕섭취량이 주의결핍 과잉활동장애와 미친 영향)

  • 정혜경
    • Journal of Nutrition and Health
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    • v.28 no.7
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    • pp.644-652
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    • 1995
  • The purpose of this study was to examine the relationship between sugar intake and behavioral problems in Korean school children. The subjects were 280 school children lived in Soung Nam city. Nutrient and sugar intakes were measured by 24-hour recall method and food frequency method through personal interview. Hyperactivity scores of children were measured by teacher and mother using conners Rating Scale-Revised. The average daily total sugar intake for the total sample was 63.0$\pm$37.4g(Range : 10g-220g). The result of stepwise multiple regression analysis using the sugar intake as dependent variable showed that energy, participation of school lunch program, Vit B2, protein, education of fathers, niacin, calcium are significant explanatory variables, explaining 44.8% of variation. As a result of the Conners scale test by teacher, 4% of children were Attention Deficit Hyperactivity Disorder(ADHD) children. A result of the Conners scale test by mother, 8% of children were ADHD children. The result of simple regression analysis had not shown significant relationship between sugar intake and ADHD scores. But the result of the Conners test by teacher, sugar intake(69.9$\pm$37.1g) of ADHD children were significantly higher than sugar intake(62.9$\pm$37.7g) of normal children(p<0.01).

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Characteristics of Sugar Cookies with Replacement of Sucrose with Sugar Alcohols (I) Organoleptic Characteristics of Sugar Alcohol Cookies (당알콜을 이용한 Sugar Cookie의 제조 (I) 당알콜 쿠키의 관능적 특징)

  • Shin, In-Young;Kim, Hyuk-Il;Kim, Chang-Soon;Whang, Key
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.4
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    • pp.850-857
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    • 1999
  • The purpose of this study was to investigate replacing possibility of sucrose by sugar alcohols and to establish the optimum formula for the development of sugar cookies. The characteristics of sugar cookies prepared with xylitol, maltitol, lactitol, isomalt substituted for 35, 50, 75, 100% of sucrose were examined through physical measurement and sensory evaluation. The spread ratio of cookies containing sugar alcohols except xylitol was superior to that of control cookies(sucrose 100%) and the use of lactitol increased the spread ratio of cookies. The specific gravity of cookies containing sugar alcohols except xylitol was lower than that of control cookies. Therefore spread ratio was in inverse proportion to specific gravity. As the proportion of sugar alcohols increased in cookie formula, surface color of cookies was getting lighter than that of control cookies. Especially cookies containing xylitol, maltitol was getting lighter as the levels of replacement increased. Overall quality of cookies with sugar alcohols containing sensory analysis was superior to that of control cookies.

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Survey on the Content and Intake Pattern of Sugar from Elementary and Middle School Foodservices in Daejeon and Chungcheong Province (대전.충청지역 초.중학교 급식의 당 함량 및 급식을 통한 당류의 섭취실태 연구)

  • Park, You-Gyoung;Lee, Eun-Mi;Kim, Chang-Soo;Eom, Joon-Ho;Byun, Jung-A;Sun, Nam-Kyu;Lee, Jin-Ha;Heo, Ok-Soon
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.39 no.10
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    • pp.1545-1554
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    • 2010
  • Korean government will set up the nationwide food safety system with strict control of hazardous nutrients like sugar, fatty acids and sodium as well as advanced nutrition education system. In addition, almost one hundred percent of school food service rate forced the government to consider more effective ways to upgrade the nutritional status of school meals. The object of our study was to provide the data on content and consumption of sugar in school meal for the nationwide project. For this purpose, we surveyed the sugar content of 842 school meal menus and their intake level for 154 days in 8 schools in Daejeon and Chungcheong Province. Sugar contents, the sum of the quantity of 5 sugars commonly detected in food, were analysed with HPLC-RID (Refractive Index Detector). Sugar intakes were calculated by multiplying the intake of each menu to the sugar content of that menu. The sugar content was highest in the desserts, which include fruit juices, dairy products and fruits. Sugar content of side dish was high in sauces and braised foods. Sugar intake from one dish is high in beverage and dairy product, and one dish meals contribute greatly to sugar intake because of their large amount of meal intake. The average lunch meal intakes of second grade and fifth grade elementary school students were 244 g/meal and 304 g/meal, respectively. The meal intake of middle school student was 401 g/meal. The average sugar intake from one day school lunch was 4.22 g (4.03 g on elementary and 5.31 g on middle school student), which is less than 10% of daily sugar reference value for Koreans. The result of this study provides exact data of sugar intake pattern based on the content of sugar which is matched directly to the meals consumed by the students.

Uncertainty of Total Alkaloids and Reducing Sugar Determination in Flue-cured Tobacco (황색종 담배중 전알카로이드와 환원당 분석에 대한 불확도 측정)

  • 백순옥;장기철;이운철;한상빈
    • Journal of the Korean Society of Tobacco Science
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    • v.23 no.1
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    • pp.45-52
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    • 2001
  • This study was carried out to evaluate the uncertainty in the analysis of total alkaloids and reducing sugar content in flue-cured tobacco. The sources of uncertainty associated with the analysis of total alkaloids and reducing sugar were the weighing of sample, the preparation of extracting solution, the addition of extracting solution into the sample, the preparation of standard solution, the precision of calibration curve for standard solution, the reproducibility of analysis, and the determination of water content in tobacco, etc. For the calculating uncertainties, Type A of uncertainty was evaluated by the statistical analysis of a series of observation, and Type B by the information based on supplier’s catalogue and/or certificated of calibration. It was shown that the main source of uncertainty was caused by the calibration curve of standard solution, the reproducibility of analysis, the volume measurement of 1$m\ell$, and the purity of nicotine reference material in the preparation of standard solution. The uncertainty in the addition of extracting solution, the sample weighing, the volume measurement of 100$m\ell$, and the determination of water content of tobacco contributed relatively little to the overall uncertainty. The expanded uncertainty of total alkaloids and reducing sugar in flue-cured tobacco at 95% level of confidence was $\pm$0.12% and $\pm$0.54%, respectively.

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Analysis of Sugar Chain Structure of PAS-7 Glycoprotein from Bovine Milk Fat Globule Membrane by US RAAM 2000 (OGS RAAM2000을 이용한 유지방구막 PAS-7 당단백질의 당쇄구조 해석)

  • 석진석
    • Food Science of Animal Resources
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    • v.21 no.4
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    • pp.367-373
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    • 2001
  • Glycoproteins PAS-6(50 kDa) and -7(47 kDa) from the bovine milk fat globule membrane share a common protein core but differ in their carbohydrate moiety. We have analyzed and proposed the structures of the N-linked sugar chains of PAS-7 by Oxford Glyco System(OGS) RAAM2000. The N-linked sugar chains were liberated from PAS-7 by hydrazinolysis and, after modifying the reducing ends with 2-aminobenzamide(2-AB), were separated into one neutral(7N, 55%) and two acidic(7M, mono-, 43%; 7D, di-, 2%) sugar chain groups. 7N was finally separated into 5 chains(a, b, c, d, and e), respectively. The structure of this 2AB-neutral sugar chain was determined by sugar analysis, exoglycosidase digestion with OGS glycosidase Kit and OGS RAAM2000 system. The results show that fraction e was the same of reported 7N1A, the biantennary complex type with a fucose on reducing end and two N-acetyllactosamine branch on non-reducing end. Therefore, it was proved that OGS RAAM2000 method is in conformity with conventional analysis of sugar chain structure from bovine PAS-7.

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Nondestructive Measurement of Sugar.Acid Contents in Fruits Using Spectral Reflectance (분광 반사 특성을 이용한 주요 과실의 비파괴 당.산도 측정)

  • 노상하;김우기;이종환
    • Journal of Biosystems Engineering
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    • v.22 no.2
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    • pp.247-255
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    • 1997
  • This study was conducted to develop regression models predicting sugar and acid contents in intact fruits nondestructively by using the second derivative of absorbance spectrum measured with a spectrophotometer wavelength range of 400nm to 2, 400nm. The correlation analysis was made in wavelength range of 600nm to 1, 100nm and 600nm to 2, 400nm respectively, in order to examine the feasibility of using a real time spectrophotometer, which covers the former range, in predicting sugar and acid contents. The second derivative data of the spectrum were obtained by varying smoothing size and derivative size of the original absorbance spectrum. SAS statistical package program was used for the regression analysis. The sugar contents of Fuji apple, Shingo pear md Yumyung peach could be predicted with SEPs of 0.40, 1.17 and 0.77 respectively, in the spectrum range of 600 to 1, 100nm. The highest correlation coefficient of the titratible acidity of apple was -0.45 at 2, 346nm and regression models indicated determination coefficient less than 0.47.

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Biochemical Studies on the Sugar Chain Structure of Glycoproteins with the Same Protein Core of Bovine Milk Fat Globule Membrane (공통의 1차 구조를 가진 우유 지방구막 구성단백질의 당쇄 구조에 관한 생화학적 연구)

  • Seok, Jin-Seok
    • Journal of Dairy Science and Biotechnology
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    • v.21 no.2
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    • pp.138-147
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    • 2003
  • We here analyzed and proposed the structures of the N-linked sugar chains of PAS-7 from bovine milk fat globule membrane. The N-linked sugar chains were liberated from PAS-7 by hydrazinolysis and, after modifying the reducing ends with 2-aminopyridine (PA), were separated into one neutral (7N,55%) and two acidic (7M mono-, 43%; 7D, di-, 2%) sugar chain roups. The latter were converted into neutral groups (7MN and 7DN) by sialidase digestion. The structure of each of these PA-neutral sugar chains was determined by sugar analysis, sequential exoglycosidase digestion, partial acetolysis, and 1H-NMR spectroscopy. The results show that the 10 sugar chains were of the biantennary complex type with and without fucose. The structure of 7N2A one of the major sugar chains, was proposed as; [structure: see text] A structural comparison between PAS-6 and -7 indicated that although they shared the same protein core, their sugar moiety was markedly different, involving the existence of a different pathway during the post-transcriptional modification.

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Strategic Alliance within the Sugar Industry of Pakistan: A Resource Dependence Perspective

  • AMAN, Rameesha;KHAN, Abdul Rehman
    • Asian Journal of Business Environment
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    • v.11 no.4
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    • pp.31-38
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    • 2021
  • Purpose: This paper uses the resource-dependency theory to present the case of the Pakistan sugar industry to highlight how the industry uses a strategic alliance to gain a powerful bargaining position over its critical dependencies. The case of the Pakistan sugar industry is well-known and it is common knowledge that the alliance or the cartel within it is responsible for frequent price hikes and sugar supply shortages in the country. Research design, data and methodology: We use a case study, qualitative document analysis design to trace how the alliance overcomes its various dependencies, and in doing so, how does it harm various stakeholder interests. Results: This paper finds that the sugar industry alliance maintains its bargaining power by manipulating sugar supply through horizontal alliances, political affiliations, underselling and under-reporting sugar stocks, purchasing sugarcane from the black market, and by gaining billions of rupees in export subsidies by hoarding stock and using its political connections. Conclusion: The paper concludes by providing a summary of the measures which the government has taken to curb this anticompetitive conduct; the most important of which is the removal of protectionist measures for sugar trade and allowing market forces to control the demand and supply of sugar in the local market.

Factors Associated with Sugar-Sweetened Beverage Consumption in Preschool Children (학령전기 아동 단 음료 섭취 관련 요인)

  • Ra, Jin Suk
    • Journal of Korean Public Health Nursing
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    • v.36 no.3
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    • pp.309-322
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    • 2022
  • Purpose: The purpose of this study was to identify factors associated with sugar-sweetened beverage consumption of Korean preschool children. Methods: Subjects for the study were recruited using the convenience sampling method. A total of 162 mothers with preschool children aged 3 to 5 years participated in the study using a self-reported questionnaire and provided data regarding the frequency and quantum of the children's sugar-sweetened beverage consumption days in a week and the factors associated with such consumption. Hierarchical multiple regression analysis was conducted to analyze the factors associated with the sugar-sweetened beverage consumption of preschool children. Results: Among the children-specific factors, age (β=.13, p=.015) was positively associated, while fruits/vegetable consumption (β=-.22, p<.001) was negatively associated with sugar-sweetened beverage consumption of the preschool children. Among the mother-specific factors, fruits/vegetable consumption of mothers was negatively associated (β=-.16, p=.006), while the sugar-sweetened beverage consumption of the mothers was positively associated with the sugar-sweetened beverage consumption of the preschool children (β=.27, p<.001). In addition, the maternal restrictive feeding style was negatively associated with sugar-sweetened beverage consumption of preschool children (β=-.23, p<.001). Conclusion: Based on these results, interventions targeted at children, parents, and the family environment should be developed to reduce the consumption of sugar-sweetened beverages in early childhood.

Dietary sugar intake and dietary behaviors in Korea: a pooled study of 2,599 children and adolescents aged 9-14 years

  • Ha, Kyungho;Chung, Sangwon;Joung, Hyojee;Song, YoonJu
    • Nutrition Research and Practice
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    • v.10 no.5
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    • pp.537-545
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    • 2016
  • BACKGROUND/OBJECTIVES: Dietary sugar intake, particularly added sugar and sugar-sweetened beverages, has received worldwide attention recently. Investigation of dietary behaviors may facilitate understanding of dietary sugar intakes of children and adolescents. However, the relationship between dietary sugar intake and dietary behaviors in the Korean population has not been investigated. Thus, this study aimed to estimate dietary sugar intake and food sources according to sex as well as examine the relationship of dietary sugar intake with frequent snacking and dietary patterns among Korean children and adolescents. SUBJECTS/METHODS: We pooled data from five studies involving Korean children and adolescents conducted from 2002 to 2011. A total of 2,599 subjects aged 9-14 years were included in this study. Each subject completed more than 3 days of dietary records. RESULTS: Mean daily total sugar intake was 46.6 g for boys and 54.3 g for girls. Compared with boys, girls showed higher sugar intakes from fruits (7.5 g for boys and 8.8 g for girls; P = 0.0081) and processed foods (27.9 g for boys and 34.9 g for girls; P < 0.0001). On average, 95.4% of boys and 98.8% of girls consumed snacks during the study period, and total sugar intake showed a significantly increasing trend with increasing energy intake from snacks (P < 0.0001 for both sexes). Two dietary patterns were identified by cluster analysis: Traditional and Westernized patterns. Total sugar intake was higher in the Westernized pattern (56.2 g for boys and 57.2 g for girls) than in the Traditional pattern (46.5 g for boys and 46.3 g for girls). CONCLUSIONS: These results suggest that multilateral and practical development of a nutrition education and intervention program that considers dietary behaviors as well as absolute sugar intake is required to prevent excessive sugar intake in Korean children and adolescents.