• Title/Summary/Keyword: sugar analysis

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A Study on Contents of Sugars and Sugar Alcohols in Processed Foods Met to Children's Taste (어린이기호식품 중 당류 및 당알코올류 함량분석)

  • Kum, Jin-Young;Hong, Mi-Sun;Jang, Mi-Ra;Choi, Bu-Chuhl;Lee, Kyeong-Ah;Kim, Il-Young;Kim, Jung-Hun;Chae, Young-Zoo
    • Journal of Food Hygiene and Safety
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    • v.29 no.3
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    • pp.241-247
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    • 2014
  • In this study, HPLC-RI was used to determine sugars and sugar alcohols contents in 102 different kinds of processed foods met to children's taste. The average amount of sugars per 100 g of candies was 70.25 g, of processed cocoa products was 65.34 g, of processed chocolate products was 47.53 g, of breads was 25.66 g, of cookies was 22.28 g, of ices was 12.47 g, of snacks was 9.74 g. Processed cocoa product items had relatively higher sucrose contents (56.80 g/100 g) than any other items. The average amount of sucrose per 100 g of candies was 44.20 g, of processed chocolate products was 32.89 g, of breads was 23.11 g. When the contents of sugars in processed foods met to children's taste per on serving size were compared to WHO guidelines, the percentages were 5.84~28.52 about recommended daily intake of total sugar of 50 g. The result for the analysis of confectioneries showed that 13 samples of 102 were detected and the sugar alcohols content of samples investigated varied between 0.01~15.06%.

Effects of Mixed Application of Chemical Fertilizer and Liquid Swine Manure on Agronomic Characteristics, Yield and Feed Value of Sorghum × Sudangrass Hybrid for Silage in Paddy Field Cultivation

  • Hwang, Joo Hwan;Lee, Sang Moo
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.34 no.3
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    • pp.155-162
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    • 2014
  • This study was conducted to investigate the influence of the mixed application of chemical fertilizer (CF) and liquid swine manure (LSM) on the agronomic characteristics, dry matter yield, amino acids, minerals, and free sugars in cultivating Sorghum ${\times}$ Sudangrass hybrid (SSH) on paddy soil. The field experiment was designed in a randomized block design with three replications and consisted of CF 100% (C), CF 70% + LSM 30% (T1), CF 50% + LSM 50% (T2), CF 30% + LSM 70% (T3), and LSM 100% treatment (T4). The application of LSM was based solely on the nitrogen. Plant length, leaf length, leaf width and number of leaf were significantly higher in T4 (p<0.05), but stem diameter did not show significant differences among treatments. Stem hardness increased significantly (p<0.05) as the LSM application rate decreased, but sugar degree decreased significantly (p<0.05) as the LSM application rate decreased. Fresh yield, dry matter yield and TDN yield were the highest in T4, whereas the lowest in T2 (p<0.05). Crude protein, crude fat and crude ash were the highest in C, T4 and T2, respectively (p<0.05). However, NDF and ADF did not show significant difference among treatments. Crude fiber decreased significantly (p<0.05) as the LSM application rate increased. The total mineral content was decreased significantly (p<0.05) as the LSM application rate increased. Total amino acid content was higher in the order of T1> C> T3> T4> T2 (p<0.05). Free sugar content increased significantly (p<0.05) as the LSM application rate increased. The analysis of all the above results suggests that the application of liquid swine manure is very effective, considering the yield performance and the content of sugar degree and free sugar. In addition, liquid swine manure may be possible to grow Sorghum ${\times}$ Sudangrass hybrid without chemical fertilizer.

Implementation of RFID based on the self-blood sugar measurement system (RFID기반의 자가 혈당측정 시스템의 구현)

  • Park, Tae-Jin;Lee, Jong-Hee
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.10
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    • pp.2079-2086
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    • 2011
  • Recently, technology of self diagnosis system which one of health-care has been research very active. With this, In this paper, we have to implement the self-blood sugar measurement system that is interlock with PC, RFID, and Bio-Signal glucose tester and accessible user interface. Therefore the equipments can performs accessible interface composition for communication between devices and PC, analysis and test of communication status of the RFID tag and reader that it easy to obtain the data of self-diagnosis linkage with PC, RFID, and Bio-Signal glucose tester. In other words, as result of communication protocol experiment with self-blood sugar measurement data, it has been showed to display a high-reliability result through year, month, and day, body temperature, and levels and check point of blood glucose.

Rapid Quality Evaluation of Dried Red Pepper by Near-infrared Spectroscopy (근적외 분광분석법에 의한 건조고추의 품질측정)

  • Cho, Rae-Kwang;Hong, Jin-Hwan;Kim, Hyun-Koo;Park, Moo-Hyun
    • Korean Journal of Food Science and Technology
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    • v.22 no.6
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    • pp.675-680
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    • 1990
  • A near-infrared reflectance spectroscopic(NIRS) method which has been recently developed for a non-destructive method for measuring ingredients in foods and agricultural products especially was evaluated for the determination of capsanthin, total sugar, capsaicin and moisture contents in Korean domestic red peppers. A multiple linear regression analysis with the data obtained by standard-laboratory methods(capsaicin by GC, capsanthin by Colorimetry, total sugar by HPLC and moisture by Vacuum drying method) and NIRS method was carried out to make a calibration. The accuracy of the NIRS method was found to be adequate when the standard-laboratory values for a set of sample that were not included in the calibration, were compared. It is concluded that the NIRS method is suitable for the determination of total sugar and capsanthin.

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Analysis of Components of Angelica dahurica Leaves (구릿대(Angelica dahurica) 잎의 유용성분 분석)

  • Lee, Yang-Suk
    • Food Science and Preservation
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    • v.14 no.5
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    • pp.492-496
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    • 2007
  • This study analyzed the sugar, amino acid, and mineral content of Angelica dahurica leaves to explore the physiology of the plant and to examine whether the loaves might be useful in food production. A. dahurica leaves contained moisture 76.30%, carbohydrate 7.58%, crude protein 4.01% crude ash 7.87% and 4.23% crude fat (all w/w). The content of reducing sugar in leaf was 1,687.10 mg/100 g. The total amount of free sugar was 57.30 mg/100 g, including 24.75 mg/100 g fructose, 23.95 mg/100g glucose, and 8.60 mg/100 g maltose. Total hydrolyzed amino acids were 139.25 mg/100 g. Total free amino acids were 215.99 mg/100 g, and that of alanine (61.52 mg/100 g) was highest. Total amino acid derivatives were 101.39 mg/100 g, and, of these materials ${\gamma}-aminoisobutyric$ acid was highest at 78.26 mg/100 g. In the When minerals were analyzed, the content of K was the highest (2,135.03 mg/100 g), followed by 916.47 mg/100 g for Ca.

Role of Sugars in Early Stage of Spore Germination in Filamentous Fungi, Aspergillus nidulans (사상균인 Aspergillus nidulans의 무성포자 발아와 당의 역할)

  • Chung, Kwang-Hee;Kim, Jae Won
    • The Korean Journal of Mycology
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    • v.46 no.4
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    • pp.511-518
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    • 2018
  • Initiation of spore germination in filamentous fungi such as Aspergillus nidulans and Botrytis cinerea requires the presence of nutrients. In this study, involvement of sugar sensing machinery was suggested in the germination of A. nidulans spores. Germination did not occur when the spores of A. nidulans were incubated in distilled water, whereas they were successfully germinated in the presence of 5% glucose with a germination rate of over 98% after 6hr incubation. Similar results were obtained when the spores were incubated in the presence of various sugars such as fructose, sucrose, and starch. Interestingly, spore germination was not observed in the presence of D-arabinose, whereas L-arabinose could induce germination as determined by the formation of germ tubes, indicating the presence of sugar sensing machinery that distinguish between the enantiomers of sugars. This inference was further supported by a decrease in germination rate (less than 25%) upon treatment of spores with trypsin. Subsequent MALDI-TOF mass spectrometry analysis of the surface proteins of spores identified ten proteins among which eight were involved in sugar metabolism. Taken together, our results suggest that spore germination in A. nidulans is initiated by the interaction of sugars with sugar binding proteins on the surface of spores.

Analysis of Free Sugars Contents of Fruit and Fruit Vegetables Classified by Cultivar and Cultivation Area (품종 및 재배지역별 과채류와 과실류의 유리당 함량 비교 분석)

  • Ha, Tai-Moon;Won, Seon-Yi;Seo, Jaesoon;Kang, Heui-Yun;Lee, Dae-Hyoung;Keuyn, Young-Hee
    • The Korean Journal of Food And Nutrition
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    • v.32 no.4
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    • pp.321-327
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    • 2019
  • The objective of this study was to analyze the free sugar contents of ten kinds of fruits and fruit vegetables that were collected from many district in Korea. The analyzed results will be used as basic nutrition component reference to processing. The results were summarized as follows. The total free sugar contents among the ten kinds of fruit vegetables was highest in grape. The contents of glucose, fructose and sucrose were 6.39%, 6.27%, 0.28%, respectively. The average total sugar contents of four cultivar of apple was 11.42% and average fructose contents was 6.13%. The free sugar contents of thirteen samples of the same cultivar of apple were all differing with statistical significance. The average total free sugar contents of eight cultivar of peach was 8.66%. In case of tomato, glucose content was approximately 1.35~2.83% and fructose was 1.26~2.51%. The contents of glucose, fructose and sucrose in paprika were 2.19%, 2.06%, 0.1%, respectively.

Relation between Beverage Consumption Pattern and Metabolic Syndrome among Healthy Korean Adults (건강한 한국성인의 음료섭취패턴과 대사증후군의 연관성 연구 -2013~2015년 국민건강영양조사를 바탕으로-)

  • Dennis, Eun Ju;Kang, Minji;Han, Sung Nim
    • Korean Journal of Community Nutrition
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    • v.22 no.5
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    • pp.441-455
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    • 2017
  • Objectives: The purpose of this study is to describe beverage patterns among healthy Korean adults and investigate their association with prevalence and components of metabolic syndrome. Methods: Subjects consisted of 6,927 Korean adults, aged 19-64 years in the $6^{th}$ Korea National Health and Nutrition Examination Survey (KNHANES, 2013-2015). Beverages were regrouped into twelve groups based on food codes and beverage intake (g/day) was assessed by 24-hour recall. Factor analysis was used to obtain beverage patterns. Waist circumference and body mass index (BMI) were used as anthropometric data; fasting blood glucose, triglyceride, high density lipoprotein (HDL), and blood pressure were used as biochemical indicators. The odds ratio (OR) for prevalence of metabolic syndrome and components of metabolic syndrome was assessed using logistic regression analysis. Results: Three beverage patterns were identified using factor analysis: 1) carbonated soft drinks 2) coffee (without added sugar or powdered creamer), and 3) alcoholic beverages. Subjects with high scores for the carbonated soft drink and coffee without added sugar or powdered creamer patterns were younger and subjects with high scores for the alcoholic beverage pattern were older. There were significant differences in gender distribution in all three beverage patterns, with men more likely to have high scores for carbonated soft drink and alcoholic beverage patterns. On the other hand, women were more likely to have higher scores for coffee without added sugar or powdered creamer pattern. Within each pattern, there were significant differences in sociodemographic and lifestyle characteristics such as education, household income, frequency of eating out, and smoking status according to the quartile of pattern scores. Alcoholic beverages and carbonated soft drinks patterns were associated with an increased levels of metabolic syndrome components, but coffee without added sugar or powdered creamer was not associated with any of metabolic syndrome components in healthy Korean adults after adjusting for age, sex, education, BMI, weight management, household income, smoking status, frequency of eating out, and energy intake. Conclusions: Alcoholic beverages and carbonated soft drinks patterns are associated with increased levels of metabolic syndrome components while coffee without added sugar or powdered creamer pattern is not associated with any of metabolic syndrome components in healthy Korean adults.

A Survey on Sugar Intake in Meals from Nursery Schools in Gyeonggi-Do (경기도지역 어린이집 단체급식에서 당 섭취량 조사연구)

  • Jung, Hong-Rae;Park, Yong-Bae;Lee, Myung-Jin;Kim, Ki-Cheol;Kim, Jung-Beom;Kim, Dae-Hwan;Kang, Suk-Ho;Park, Ik-Bum;Park, Jong-Suk;Kwon, Kwang-Il;Kim, Mi-Hye
    • Korean Journal of Food Science and Technology
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    • v.43 no.2
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    • pp.182-188
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    • 2011
  • Excess sugar intake by food consumption may contribute to the development of diabetes, dental caries, attention deficit hyperactivity disorder (ADHD), and cardiovascular disease. The objective of this study was to investigate the sugar intake from meals at nursery schools in Gyeonggi-Do, and to construct a database for reduction policies sugar intake. A total of 601 samples were analyzed for sugar intake in summer and winter, respectively. The average sugar intake from food service was 2.22 g/meal, which was 5% of the Recommended Daily Intake (RDI). Furthermore, the analysis results of sugar content were in the decreasing order of fruits (5.05 g/100 g), fried food (2.92 g/100 g), and braised food (2.31 g/100 g). The habit of excessive sugar intake in childhood can be threaten health in adulthood. Thus, it is necessary for nursery school children to consume schoolmeals that contain less sugar.

Genetic Analysis for Agronomic, Chemical , and Leaf Chararters According to Stalk Position in Flue-Cured Tobacco (Nicotiana tabacum L. ) II. Analysis of Gene Action by Diallel Crosses (황색종 연초(Nicotiana tabacum L.)의 주요형질과 엽위별 엽형질에 대한 유전분석 II. 이면교배에 의한 유전자 작용분석)

  • 조수헌
    • Journal of the Korean Society of Tobacco Science
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    • v.9 no.2
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    • pp.37-47
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    • 1987
  • This experiment was conducted to obtain basic information on breeding of flue-cured tabacco varieties . Nine cultivars and partial diallel set of 36 Fl hybrids were grown at Daegu Experiment Station, Korea Ginseng & Tobacco Research Institute in 1983. Partial dominance with high additive gene effect was observed for yield, leaves per plant , days to flower, leaf weight, nicotine and reducing sugar content. partial dominance with additive and dominant gene effect was observed for stalk height , leaf width midrib weight Overdominance with high dominant gene effect was observed for leaf length and midrib width. The directions of dominance were positive for yield, stalk height, leaf weight, leaf length, leaf width, midrib weight, midrib width and reducing sugar content, and the negative was days to flower. The estimates of effective genes were 1 for leaves per plant, 2 for stalk height, days to flower and leaf shape. 3 to 6 for leaf length, leaf width, leaf weight and midrib weight.

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