• Title/Summary/Keyword: 소재 선호

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당류산업

  • 임재각
    • Food Industry
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    • s.181
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    • pp.38-67
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    • 2004
  • 예로부터 인간은 단맛에 강한 욕구를 가지고 있었다. 따라서 설탕, 포도당, 과당 등 단맛이 강한 감미료를 선호하여 왔고, 현재까지도 식품 제조시 가장 널리 사용되고 있다. 그러나 최근에는 국민의 건강에 대한 관심이 고조 되고 설탕으로 대표되는 전통적인 일반 감미료의 충치, 비만, 당뇨병 유발 등의 부정적인 측면이 부각되고 있을 뿐만 아니라, 식품에 대한 건강 기능성이 강조되면서 기능성 감미료가 주목 받고 있다. 특히 고도의 경제성장 및 국민 소득의 향상에 따라 차별화된 기능성 감미료의 생산을 요구하는 실정이다. 이와 관련하여, 현재 식품 산업계에서는 올리고당류, 당알콜류, 고감미 감미료류 등에 많은 관심을 가지고 연구 개발에 집중하고 있다. 올리고당류의 대표적인 제품은 프락토올리고당, 갈락토올리고당, 이소말토올리고당 등이다. 현재 올리고단 시장은 성숙기로서 성장속도가 둔화되고 있으나, 최근 American Association of Cereal Chemists(AACC)등 세계적인 협회에서 수용성 식이섬유를 다당류, 올리고당, 리그닌 등을 포함하여 새롭게 정의하였고 이에 따라 해외에서는 프락토올리고당을 중심으로 수용성 식이섬유로 용도 사용이 가능하게 되었을 뿐만 아니라, 식이섬유로 표기도 가능하게 되어 수요가 증가할 것으로 예상된다. 국내에서는 아직 올리고당을 식이섬유로 사용하지는 못하고 있으나, 식품 공전 개정을 통해 식이섬유로 표기 가능하도록 수정될 전망이다. 당알콜류는 솔비톨 및 자일리톨이 주류를 이루고 있다. 솔비톨은 시장에 가장 먼저 소개된 당알콜류인데 저가여서 그동안 가장 큰 시장을 형성하고 있었으나 최근 3년 동안 자일리톨껌이 최대의 히트 상품이 되면서 자일리톨이 급성장하였다. 그 외에는 만니톨, 에리스리톨, 말티톨, 이소말트 등이 있다. 최근에는 말티톨을 중심으로 다양한 응용 연구 및 이소말트 및 에리스리톨 등을 생산 판매하고 있는 다국적 기업의 판촉 활동 등으로 당알콜류 시장의 새로운 변화가 예상된다. 고감미 감미료류는 스테비오사이드와 아스파탐이 주류를 이루고 있었지만, 최근 아세설팜 K 및 수크랄로스가 잇따라 식품으로써 사용 허가를 받으면서 시장이 재편되고 있다. 하지만, 해외에 비하여 국내의 고감미 감미료 시장은 매우 작고 성장률도 낮은 편인데 그 이유로는 국민 정서상 천연이 아닌 합성에 대한 부정적 인식과 맛에 대한 거부감 때문인 것으로 생각된다. 이와 관련하여 최근에는 다양한 감미질 및 Multi sweetener system 연구를 통해 설탕과 유사한 맛을 내는 혼합 기술 개발에 관한 연구가 진행되고 있다. 따라서 향후에는 해외의 선진국과 같이 고감미 감미료 시장도 점차적으로 확대될 것으로 예상된다. 기타 대체 감미료로는 타가토스, 트레할로스, 아라비노스 등이 있다. 이중에서 특히 해외에서 크게 기대를 모으고 있는 타가토스는 최근 국내 인증을 받아 시장 진출을 준비 중에 있다. 아라비노스는 양질의 감미를 갖는 천연 펜토오스인데 연구용 시약 이외에는 지금까지 거의 이용되지 않았다. 그러나 최근 아라비노스가 설탕의 소화흡수를 선택적으로 억제한다는 흥미 있는 결과가 임상 및 동물실험에서 확인되어 향후 제품으로써 개발을 기대할 수 있게 되었다. 이들 감미료는 기존 설탕이 가지는 문제점을 많은 부분 극복할 것으로 여겨지며, 이로 인해 수요는 점차 증가할 것으로 생각되며, 높은 경제적 부가 가치를 창출할 것으로 예상되어 진다. 생산 기술 적인 측면에서 건강 지향적 천연소재 감미료에 대한 선호가 날로 증가하는 추세에 따라 기존에 주로 사용되었던 화학합성법보다는 천연 이미지의 생물공학적인 방법에 의한 감미료 생산이 각광을 받을 것으로 예상된다. 생물공학적인 방법을 감미료 소재 개발에 응용하게 되면, 기존에 사용되었던 화학합성법 등이 가지는 환경적인 문제, 반응 부산물 생성에 따른 분리, 정제에서의 비용증가 등의 문제점을 해결할 수 있을 것으로 여겨지며, 고정화 방법의 도입 등을 통해 생산성 향상을 도모할 수 있다. 본 장에서는 감미료 소재 개발에 건강 지향적 국민 정서를 반영하고, 국내외 감미료 시장의 흐름을 파악하여 당류 산업의 발전적인 변화에 대처하고자 하였으며, 이를 통해 당류산업의 고부가가치 첨단산업으로서의 육성방안을 논의하고자 하였다.

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North Korean Defector Students' Science Learning in Angbuilgu Activity (앙부일구(仰釜日晷) 활동에서 드러난 탈북 학생들의 과학 학습)

  • Lee, Ji-Hye;Shin, Dong-Hee
    • Journal of The Korean Association For Science Education
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    • v.35 no.1
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    • pp.1-14
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    • 2015
  • The purpose of this study is to examine North Korean defector students' characteristics in science learning through their voice in an "Angbuilgu" program, one of the Korean traditional science knowledge (TSK). We compared them with two other groups of contrasting backgrounds. The Angbuilgu program contains meaningful questions of time, everyday-life knowledge, Korean TSK, and western modern science (WMS). The teaching strategy consists of interactions between teacher and students, and scientific experiments. We applied this program to three groups and analyzed: North Korean defector students, elementary science gifted students, high school students in an advanced class. The characteristics of their science learning show the following: First, their interpretation of time as nature itself in their everyday life. They have rich experience and are familiar with time in nature. Second, they prefer science with complementary, caring, and humanist perspectives, which is in contrast to other groups with preference to the updated and practical science. Third, they lack scientific concepts but possess an abundance of everyday-life knowledge. Their linguistic expressions are ordinary rather than scientific. Fourth, they are familiar with narrative thinking more than scientific thinking. The results show that the science program using Korean TSK can help them accept new scientific knowledge as well as cultural pride, which plays a role in reconfirming their identity as one ethnicity. We expect that the contents of Korean TSK can be an intercultural field between North Korean defector students and our science curriculum.

The Effects of Preferred Job Type of University Students on the Confirmation Bias and Job Anxiety (대학생의 선호직업유형이 확증편향과 취업불안에 미치는 영향)

  • Roh, Seon-Hee;Kim, Ki-Seung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.8
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    • pp.190-199
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    • 2019
  • This quantitative study analyzed the influence of college students' preferred type of occupation on a confirmation bias and job anxiety during the process of making a career decision. The questionnaires were distributed to university students in Seoul and the metropolitan area for 500 weeks from July 10 2017 to August 8, 2017. Among them, 482 valid samples of data were analyzed by data coding and data cleaning usin SPSS 18.0 statistics and the AMOS 18.0 program. The main results of this study are that the type of business preference for an affirmative bias has a positive (+) direct influence (${\beta}=.374$) and the type of freedom has a positive direct influence (${\beta}=.326$) and a negative direct influence (${\beta}=-.274$). In the case of job anxiety, the influence of job type is more increased. The confirmation bias shows that the business type and freestyle type find cause in effort or achievement motive, while rect type is recognized as social environment and structural problem. In conclusion, there is a difference in the degree of confirmation bias and job insecurity. This study shows that college students' preferred occupation types can help them to understand the bias and anxiety that they have in preparing for the job and help to reduce job anxiety, and these findings are expected to be useful for career guidance.

Effect of Knit Fabric Constituent Characteristics on Preference (니트 소재 구성특성이 선호도에 미치는 영향)

  • Roh, Eui-Kyung;Kim, Seong-Hun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.4
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    • pp.651-658
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    • 2008
  • Conjoint analysis estimates how much each of the attributes is valued on the basis of the choices consumers make among product concepts that are varied in systematic ways. The purposes of this research were to evaluate the relative importance of each fabric constituent characteristic for the consumer's utility or preference, to compare with the relative importance between the trained and the untrained panelists, and to identify the combinations of the constituent characteristic of knit fabric which offer consumers greater utility. Conjoint analysis was conducted using data taken from 54 trained and 54 untrained panelists, who rated preference for 12 different knit fabrics. The stitch length had a greater effect on knit fabric preference than the mixture ratio of fiber. There was no difference on effect of knit constituent characteristics for preference between the trained and the untrained panelists. Total, trained and untrained group preferred a knit fabric that had a higher acrylic mixture ratio and a short stitch length.

A Study on the Preference to the Textiles for Jackets of College Students (재킷용 의복소재에 대한 대학생의 선호도 조사연구)

  • Kim Heesook;Na Mihee
    • Journal of the Korean Home Economics Association
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    • v.42 no.10 s.200
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    • pp.105-113
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    • 2004
  • This research was designed to investigate the preferred textiles for the jackets of college students. 105 subjects that majored in fashion design were surveyed. The subjects selected three favorite materials, according to the seasons, among 120 samples presented in a swatch book and their frequency of choice was tallied. The extent of the subjects' preference was compared by season and gender The results of this study were as follows: 1. College students preferred dark Grayish Brown plain variation wool Crossbred foremost as a textile for the spring and fan season. 2. White plain cotton Plisse was the most preferred material for summer. 3. Olive Gray cotton Corduroy was the most preferred textile for winter. 4. For thickness and weight, the textiles chosen for winter were thicker and heavier than those chosen for other seasons. 5. For fiber content, natural fiber such as wool were preferred for all seasons. 6. For the type of fabrics weave, a plain variation weave was preferred for spring and fall, twill was preferred for winter and plain weave was preferred for summer. 7. Collage students preferred gray and brown tones for the spring, fall and winter season. For color characteristics, solid fabrics were generally preferred and check patterns were especially preferred for the winter season. 8. Girl students generally preferred lighter and thinner fabrics than those chosen by boys.

Studies on the preference of weft knit fabrics (위편성 니트 소재의 선호도에 관한 연구)

  • Ju, Jeong-Ah
    • Korean Journal of Human Ecology
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    • v.14 no.4
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    • pp.665-671
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    • 2005
  • This study aims to examine the effect of structural properties, subjective textures, sensibilities, and objective handle on the preference for weft knit fabrics, and then to provide useful information in planning and designing knit fabrics through predicting the preference. We made 20 plain knit fabrics, as specimens, with a combination of 5 kinds of wool/rayon fiber contents and 4 kinds of stitch loop length. For the subjective evaluation of textures, sensibilities, and preference, we used the questionnaire that had been developed in the previous study. The data analysis was conducted with Pearson's correlation analysis, ANOVA, Duncann multiple range test and regression analysis. The results are as follows: In relationship of structural properties and preference, we could not recognize any difference in whole ranges of wool/ rayon fiber contents and in 7.5mm and less stitch loop length. On the other hand, we could find the decrease of preference in over 7.5mm stitch loop length. As to subjective textures and sensibilities, a multiple regression analysis of preference indicated a higher determination coefficient by sensibilities than by textures. But there were little correlation between a objective handle and preference of weft knit fabrics.

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University Students' Preference and Sensibility to Fetish Fabrics (대학생의 페티시 패션소재에 대한 선호도와 감성)

  • Kim, Yeo-Won;Lee, Su-Youn;Choi, Jong-Myoung
    • Korean Journal of Human Ecology
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    • v.18 no.3
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    • pp.741-748
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    • 2009
  • The purpose of this study is to investigate the students' preference and the sensibility to fetish fabrics such as leather, fur, velvet, suade, and corduroy, and to analyze differences according to gender of the university students. A questionnaire survey was conducted on 324 university students (male students 52.8%, female students 47.2%) in the Cheongju area, Korea. Frequency, t-test, F-test and factor analysis were used for data analysis. The results were as follows: 1) the subjects preferred velvet, leather and suede fabrics, while they did not prefer corduroy and fur fabrics. 2) Their feelings to fetish fabrics were respectively different depending on the kind of fabrics. 3) There were partially significant differences between the gender in the preference and the sensibility to fetish fabrics. 4) They evaluated that velvet fabrics could express a variety of sensibilities. 5) They considered that fabrics as velvet, leather, and fur have more noble and fanciful images than corduroy.

A Study on the Preferences to the Functionality and the Level of the Discomfort to the Various Materials of the Footwear when Wearing (신발의 소재별 특성이 기능성 선호도와 착용시 불편 정도에 미치는 영향)

  • Choi, In-Ryu
    • Journal of the Korea Fashion and Costume Design Association
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    • v.17 no.2
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    • pp.239-249
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    • 2015
  • This study was focused on how the various materials of footwear affect the preferences of functionality and the level of discomfort when wearing. Datas were collected using questionnaire, age of 20's to 50's of female and male. Results were analysed using SPSS WIN 2.0 through t-test and ANOVA test. Results are as follows: In the preferences of materials of footwear, datas showed the shoes are of genuine leather, the sneakers are of textiles, the sandals are of man-made leather and the boots are of genuine leather. The important factor to the preferences of the materials were the leathers in the durability, the man-made leathers in easy-care and maintenance, the rubber and the complex materials in comforts. The level of the discomforts of the footwear were highly ranked in genuine leather, the man-made leather and the complex material with man-made leather and textiles followed. Man-made leather and the textiles represented the discomfort in the ankle. Mostly discomforts of the footwear showed in the sole and the top side of the foot in all kinds of footwear. The preferences in functionality were collected by the female, also female preferred the comfort the first, male preferred the durability. And the texture and the durability were highly preferred in aged female and male.

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Structural Equation Model(SEM) for Constituent Characteristics, Texture, Sensibility and Preference of Fabric (Part 1) - Weight of F/W Women's Jacket Fabrics - (구조방정식을 이용한 소재의 구성특성, 질감 및 감성과 선호도간의 관계모형 (제1보) - 추동 여성 자켓용 소재의 무게 중심으로 -)

  • Roh, Eui-Kyung;Ryu, Hyo-Seon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.31 no.8
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    • pp.1240-1251
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    • 2007
  • The purpose of this study was to examine the relationship between weight of fabrics and texture and sensibility and preference of consumers for F/W women's jacket fabrics. Structural Equation Model(SEM) using AMOS program was conducted to analyze the relationships. Then, this study aimed to provide useful information in planning designing fabrics through predicting the subjective characteristics analyzed. The main survey was developed the 7-point semantic differential scale of subjective texture, sensibility and preference. Fifty trained female panelists of 20-30 years old were participated and questionnaire method was used with 20 kind of fabric. The evaluation methods such as by the sense of sight & touch were used when fabrics were estimated subjectively. When evaluated by the sense of sight & touch, fabric's weight did not have effect directly on preference, but had effect indirectly on preference through the texture and the sensibility..

Prototype Study of New Hanbok Jeogori for the Development of Customization System (커스터마이징 시스템 개발을 위한 신한복 저고리 원형 연구)

  • Cha, Su-Joung;Heo, Seung-Yeun;An, Myung-Sook
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2021.07a
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    • pp.295-296
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    • 2021
  • 본 연구는 신한복 저고리에 대한 선호도 조사를 통해 추출된 신한복 저고리 디자인을 기본으로 하여 신한복 저고리 원형을 개발하고자 한다. 이를 통해 신한복 저고리 생산에 기본이 되는 패턴에 관한 정보를 제공하고자 한다. 연구에 사용된 프로그램은 CLO 3D와 DC Suite 5.1 프로그램이며, 분석에는 SPSS 26.0을 활용하였다. 1차 외관평가를 통해 낮게 평가된 부분을 수정하여 어깨폭, 소매길이, 소매통, 앞단의 겹침 분량에 대한 수정이 이루어졌다. 2차 외관평가결과 저고리길이, 소매길이, 밑단둘레에 대한 수정이 요구되었다. 최종 신한복 저고리 패턴은 앞면, 뒷면, 옆면의 모든 항목에서 4.60이상으로 높은 평가를 받았다. 개발된 신한복 저고리 패턴은 20대 전반 여성의 체형에 맞추어져 있고 소재에 대한 고려 없이 3D 시뮬레이션 상에서의 일반적인 Physical parameter값에 맞추어 제작되었다. 따라서 향후 발전된 연구에서는 소재별, 저고리의 길이별, 연령별 신한복 저고리 패턴에 대한 연구가 이루어져야 할 것으로 생각된다.

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