• 제목/요약/키워드: Fiber Sources

검색결과 339건 처리시간 0.023초

당뇨벙 환자를 위한고식이섬유 보충물의 개발을 위한 연구(II) -해조류 투여가 당뇨쥐의 당질과 지질대사에 미치는 영향- (A Study on the Development of High-fiber supplements for the Diabetic Patients -Effect of Seaweed Supplementation on the Lipid and Glucose Metabolism in Streptozotocin-induced Diabetic Rats-)

  • 이혜성
    • Journal of Nutrition and Health
    • /
    • 제29권3호
    • /
    • pp.296-306
    • /
    • 1996
  • The ultimate aim of this study is to find high-fiber sources among Korean common foods and to develop a high-fiber supplement which can be useful in the therapeutic diet for the diabetic patients. For this purpose the effect of four kinds of seaweeds(mixture of purple laver & sea lettuce : MPS, sea tanle : ST, sea mustard : SM, agar agar : AA) on the glucose and lipid mtabolism were examined. Seven groups of normal and streptozotocin-induced diabetic rats were fed dietary fiber-free control diet or one of experimental diets containing 7% of one of four seaweeds for six weeks. The effects of seaweeds were campared with the effects of fiber-free diet or pectin diet. ST, SM, and AA showed a tendency of improving glucose tolerance improvement by those seaweeds, however, was less than that by pectin. MPS was found to possess a serum cholesterol-lowering effect which is comparable to that of pectin. All the supplementations of seaweeds induced significant increase in fecal steroids excretion. The amounts of fecal cholesterol excretion follwing in feeding of MPS and SM were as high as the level cause by pectin. The excretion of bile acids in the MPS group was much higher than that in the pectin group. Based on its effects of alleviating the diabetic symptoms in the previous study and of improving the glucose tolerance, sea mustard seems to have a benefical effect on glucose metabolism. The serum cholesterol-lowering effect of MPS possibly due to the significant increase in fecal steroids excretion suggests that MPS may be effective in improving abnormalities of lipid metabolism. Therefore, sea tangle and mixture of purple laver & sea lettuce seem to be promising as an effective source of high-fiber supplement for the diabetic patients.

  • PDF

광섬유 FBG 센서를 이용한 탄성파 검출 (Elastic Wave Detection using Fiber Optic FBG Sensor)

  • 서대철;권일범;윤동진;이승석;이정율
    • 비파괴검사학회지
    • /
    • 제30권1호
    • /
    • pp.1-5
    • /
    • 2010
  • 음향방출법은 압력용기 구조에서 존재하는 결함이나 누출을 탐지하거나 모니터링하는데 유용한 도구로 부상하였다. 본 연구에서는 브레그 격자에 근거한 음향방출센서 시스템이 개발되었다. 다양한 길이의 센싱부를 포함하는 다양한 형태의 광섬유 브레그 격자센서가 제작되었고 PZT 펄서와 연필심 파괴를 이용하여 시험되었다. 두 가지 형태의 센서부착법이 사용되었다. 첫째는 광섬유 브레그 격자센서가 접착제를 이용하여 표면에 완전히 부착되는 방법이고 둘째는 센서의 한쪽 부분만 표면에 부분적으로 고정하고 다른 쪽은 외팔보와 같이 작동하도록 하는 방법이다. 이렇게 함으로써 센싱부의 길이에 비례하는 고유진동수를 갖는 광섬유 브레그 격자센서를 구성할 수 있다. 본 연구에 사용된 센서 시스템의 최종 목적은 원자력발전소 상부 관통관의 균열이나 누출을 탐지하는 온라인 모니터링 시스템에 사용하는 것이다.

핵의학 적용을 위한 광섬유 기반의 알파/베타 검출기의 제작 및 특성분석 (Fabrication and Characterization of a Fiber-Optic Alpha/Beta Detector for Nuclear Medicine Application)

  • 홍승한;유욱재;신상훈;서정기;한기택;전다영;조승현;이봉수
    • 센서학회지
    • /
    • 제21권5호
    • /
    • pp.367-373
    • /
    • 2012
  • We fabricated a fiber-optic alpha/beta detector, which is composed of a sensing probe, a plastic optical fiber, a photomultiplier tube, and a multichannel analyzer, to obtain the energy spectra of radioactive isotopes. As inorganic scintillators of a sensing probe, a ZnS(Ag) film was coupled with a $CaF_2$(Eu) crystal for alpha and beta spectroscopy. In this study, $^{210}Po$ and $^{90}Sr$ were used as alpha and beta sources, respectively, and we measured the radiation energy spectra using a fiber-optic alpha/beta detector to identify alpha and beta emitting radionuclides for nuclear medicine application. Also, the variations of energy spectrum were obtained according to the length of plastic optical fiber.

식이섬유 D/B 구축과 2001 국민건강 영양조사 식이섬유 섭취량 재평가 -20세 이상 성인을 대상으로- (Analysis of Dietary Fiber Intake in the Korean Adult Population Using 2001 Korean National Health and Nutrition Survey Data and Newly Established Dietary Fiber Database)

  • 유경혜;정진은;이선영
    • Journal of Nutrition and Health
    • /
    • 제41권1호
    • /
    • pp.100-110
    • /
    • 2008
  • 본 연구에서는 3,149가지의 식이섬유 DB를 새로이 구축하고, 이 자료와 2001년 국민건강 영양조사 자료 중 24시간 회상법에 의한 식품섭취조사 결과를 활용하여 20세 이상 한국인의 식이섬유 섭취량을 성별, 연령별, 지역별로 구분하여 섭취열량 1,000 kcal당 식이섬유섭취량과 일일 총 식이섬유 섭취량을 AI와 비교평가 하였다. 또한 새로 구축한 식이섬유 D/B에서 구분한 식품군을 이용하여 식이섬유 섭취 기여식품군을 조사하였으며, 연구결과를 요약하면 다음과 같다. 1) 전체 대상자의 1,000 kcal당 평균 식이섬유 섭취량은 12.24 g/1,000 kcal이고, 남성은 11.47 g/1,000 kcal, 여성은 12.88 g/1,000 kcal로, 남성은 AI에 미달되었고, 여성은 AI보다 많았다. 일일 식이섬유 총 섭취량은 전체 23.58g, 남성 25.04g, 여성 22.36g으로 유의적으로 남성이 여성보다 많았다. 2) 연령별로 영양섭취 기준을 판정한 결과 섭취열량 1,000 kcal당 식이섬유 섭취량은 남성은 $50{\sim}64$세 (12.45 g/1,000 kcal), $65{\sim}74$세 (13.27 조 1,000 kcal)에서만 AI보다 많이 섭취하고 있었고, 여성은 $20{\sim}29$세 (11.20 g/1,000 kcal)에서만 AI보다 적게 섭취하였다. 1인 1일 식이섬유 총 섭취량은 여성 $30{\sim}49$세 (23.18 g/day), $50{\sim}64$세 (24.27g/day)를 제외하고는 모든 그룹에서 AI보다 적은 양을 섭취하고 있었다. 3) 지역을 대도시, 중소도시, 읍면지역으로 나누어 식이섬유 섭취를 평가한 결과 읍면지역> 중소도시 > 대도시 순으로 섭취하고 있었으며, 1,000 kcal당 식이섬유 섭취량은 대도시에서 AI보다 적게 섭취하고 있으면서 각 지역 간에 유의적인 차이를 보였으나, 1일 총 식이섬유 섭취량으로 비교 시에는 유의적인 차이를 보이지 않았다. 4) 20세 이상 전체 대상자의 식이섬유 기여식품군은 채소류 (40.98%) > 곡류 (19.86%) > 과일류 (14.98%) 순으로 이 세 가지 군이 전체의 75% 이상을 차지하고 있었다. 성별, 연령별, 지역별 평균 섭취량으로 비교 시 $50{\sim}64$세, $65{\sim}74$세 여성만 채소류 > 과일류 > 곡류 순으로 섭취하고 있었으며, 그 외 모든 군에서는 채소류 > 곡류 > 과일류 순으로 산출되었다. 식이섬유 섭취에 기여하는 상위 10대 단일 식품은 배추김치, 백미, 단감, 고춧가루, 무청, 글, 두부, 배, 사과, 대두였으며 계절적 요인을 받는 과일과 무청을 제외한 나머지 식품에서 전체 식이섬유의 30% 이상을 섭취하고 있었다.

The Influence of Different Fiber and Starch Types on Nutrient Balance and Energy Metabolism in Growing Pigs

  • Wang, J.F.;Zhu, Y.H.;Li, D.F.;Jorgensen, H.;Jensen, B.B.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • 제17권2호
    • /
    • pp.263-270
    • /
    • 2004
  • A repeated $4{\times}4$ Latin square design was conducted with eight ileal cannulated castrates to examine the effect of source of starch and fiber on nutrient balance and energy metabolism. Pigs were fed on one of the four experimental diets: Control diet (C) mainly based on cooked rice; and diets P, S and W with the inclusion of either raw potato starch, sugar beet pulp or wheat bran supplementation, respectively. With the exception of an increased (p<0.05) energy loss from methane production with diet S observed, no significant differences (p>0.05) in the ratio of metabolizable energy (ME)/digestible energy, the utilization of ME for fat deposition and for protein deposition, energy loss as hydrogen and urinary energy were found between diets. The efficiency of utilization of ME for maintenance was lower (p<0.05) with diets P and S than with diet C. The inclusion of fiber sources (sugar beet pulp or wheat bran) or potato starch reduced the maintenance energy requirement. The fecal energy excretion was increased (p<0.05) with either sugar beet pulp or wheat bran supplementation, while it was unaffected (p>0.05) by addition of potato starch. In comparison with diets C and P, a lowered ileal or fecal digestibility of energy with diets S and W was observed (p<0.05). Feeding sugar beet pulp caused increased (p<0.05) daily production of methane and carbon dioxide and consequently increased energy losses from methane and carbon dioxide production, while it did not influence the daily hydrogen production (p>0.05). An increased (p<0.05) proportion of NSP excreted in feces was seen by the supplementation of wheat bran. Higher NSP intake caused an increased daily amount of NSP in the ileum, but the ileal NSP proportion as a percentage of NSP intake was unaffected by diets. Feeding potato starch resulted in increased daily amount of starch measured in the ileum and the proportion of ileal starch as a percentage of starch intake, while no significant influence on fecal starch was found. Higher (p<0.05) daily amount of fecal starch and the proportion of fecal starch as a percentage of starch intake were found with fiber sources supplementation compared with diets C and P. By increasing the dietary NSP content the fecal amount of starch increased (p<0.01).

생육단계별 배 과피에서 분리한 식이섬유원의 물리적 특성 (Physical Properties of Dietary Fiber Sources from Peel of Asian Pear Fruit at Different Growth Stages)

  • 장선;이범수;은종방
    • 한국식품과학회지
    • /
    • 제37권6호
    • /
    • pp.905-911
    • /
    • 2005
  • 상품성이 낮은 배 그리고 가공 부산물의 하나인 과피의 기능성식품 소재로써의 이용가능성을 검토하고자 생육단계별 풍수, 신고, 추황배의 과피로부터 식이섬유원을 분리하여 이들의 성분을 분석하고 물리적 특성을 측정하였다. 3 품종의 3 생육단계에서 과피로부터 분리한 식이섬유원의 총식이섬유 함량은 74.00-88.38%로 비교적 높은 수준이었고 그 중 92-94%가 불용성 성분이었다. 분리된 식이섬유원에 잔존하는 총페놀성물질의 함량은 1.64-4.46mg/g이었고 신고와 추황배에서는 과실의 성숙도에 따라 잔존하는 총페놀성물질의 함량이 증가하였다. 평균입자의 크기는 $255-381{\mu}m$이었고 동일한 품종내에서 성숙된 과실일수록 분리된 식이섬유원의 입자는 증대하였으며 이에 따라 유과에서 분리한 식이섬유윈의 밀도가 유의적으로 작았다. 보수력은 3.11-6.03g water/g solid이었고 신고와 추황배에서는 유과, 미숙과, 성숙과의 순으로 점차 증가하였으며 oil 흡착력은 1.98-2.57g oil/g sample로 보수력보다 낮은 값을 보였고 보수력이 낮은 유파의 식이섬유원이 oil 흡착력은 컸다. 식이섬유원의 입자의 크기는 밀도, 보수력, oil 흡착력과 높은 상관관계를 나타내었고 물리적 특성에 영향을 주는 주요성분은 Cellulose와 uronic acid로 나타났다. 결론적으로 배 과피에서 분리한 식이섬유원은 총 식이섬유 함량이 높고 생리활성 물질인 페놀성물질을 함유하고 있으며 미숙과, 성숙과 식이섬유원은 비교적 높은 보수력을 갖고 있어 새로운 식이섬유원 소재로 이용이 가능할 것으로 생각된다.

Fiber source and inclusion level affects characteristics of excreta from growing pigs

  • Mpendulo, Conference Thando;Chimonyo, Michael;Ndou, Saymore Petros;Bakare, Archibold Garikayi
    • Asian-Australasian Journal of Animal Sciences
    • /
    • 제31권5호
    • /
    • pp.755-762
    • /
    • 2018
  • Objective: The objective of the study was to determine the influence of varying fibrous diets on fecal characteristics of growing pigs. Methods: A total of 104 pigs (initial weight $18{\pm}2.0kg$) were used in the study. They were housed in individual pens and fed on diets containing maize cob, grass hay, lucerne hay, maize stover, and sunflower husk. These fibers were included at 0, 80, 160, 240, 320 and 400 g/kg. Fecal and urine samples were collected. Results: Fecal output was largest amongst pigs fed on diets containing grass hay and maize stover (p<0.05). Nitrogen content was highest in feces from pigs fed on sunflower husk (p<0.05). Pigs fed on diets containing maize stover and maize cobs produced the largest concentrations of short chain fatty acids. Acetate concentration was high in feces of pigs fed maize stover than those fed grass hay and lucerne hay (p<0.05). As the level of fiber inclusion increased, fecal consistency and nitrogen content increased linearly (p<0.05). Urea nitrogen decreased as the inclusion level increased across all the fibers (p<0.05), with maize cobs containing the largest content of urea nitrogen. As dietary fiber content increased, fecal nitrogen content also increased (p<0.05). Conclusion: It was concluded that different fiber sources influence fecal characteristics, thereby having different implications on pig waste management. It is vital to monitor fiber inclusion thresholds so as to easily manage environmental pollutants such as butyrate that contribute to odors.

한국인 남자대학생의 주요 상용식품의 불용성 및 수용성 식이섬유 함량 분석 (Analysis of Insoluble(IDF) and Soluble Dietary Fiber(SDF) Content of Koran Male College Students)

  • 황선희
    • Journal of Nutrition and Health
    • /
    • 제29권3호
    • /
    • pp.278-285
    • /
    • 1996
  • Contents of insoluble(IDF), soluble dietary fiber (SDF), and total dietary fiber(TDF) of 30 foods which are consumed commonly by 80 Koeran male college students were determined by Prosky and colleagues' enzymatic-gravimentric method. Foods with highest intake frequency were rice, Kimch'i, and red pepper powder. TDF, IDF, and SDF contents of rice were 0.96, 0.59 and 0.37g/100g wet wt., respectively and tose of Kimch'i were 3.07, 2.19 and 0.88g/100g wet wt., respectively. Red pepper powder contained high amount of TDF(39.37) and IDF (33.13g/100g wet wt.). The TDF content of the 30 foods ranged from 0.70 to 39.37g/100g wet wt. Red pepper (39.37), dried laver(31.36), and dried sea mustard (37.77g/100g wet wt.) contained high amounts of TDF. The IDF content of the 30 foods ranged from 0.13 to 33.13g/100g wet wt. Red pepper powder (33.13), dried laver(15.55) and sesame(15.43g/100g wet wt.) contained high amounts of IDF. SDF of the 30 foods ranged from 0.01 to 25.66g/100g wet wt. Dried sea mustard(25.66), dried laver(15.81), coffee powder (13.17), and garlic(8.72g/100g wet wt.) were good sources of SDF. % ratio of SDF to TDF of the 30 foods was lower than 50% except soybean curd(94.27%), coffee powder (88.93%), garlic(86.17%), dried sea mustard(67.94%), and dried laver(50.41%). It is recommended to increase intake of seaweeds in order to supply TDF adn SDF properly.

  • PDF

Comparative digestibility of nutrients and amino acids in high-fiber diets fed to crossbred barrows of Duroc boars crossed with Berkshire×Jiaxing and Landrace×Yorkshire

  • Zhao, Jinbiao;Wang, Qiuyun;Liu, Ling;Chen, Yiqiang;Jin, Aiming;Liu, Guoliang;Li, Kaizhen;Li, Defa;Lai, Changhua
    • Asian-Australasian Journal of Animal Sciences
    • /
    • 제31권5호
    • /
    • pp.721-728
    • /
    • 2018
  • Objective: This experiment was conducted to determine the differences in the apparent ileal (AID) and total tract digestibility (ATTD) of nutrients and indispensable amino acids (IAA) in high-fiber diets with wheat middlings, rice bran or alfalfa meal fed to Duroc${\times}$(Landrace${\times}$Yorkshire) (DLY) and Duroc${\times}$ (Berkshire${\times}$Jiaxing) (DBJ) growing barrows. Methods: Eighteen DLY and 18 DBJ growing barrows were randomly allotted to a $2{\times}3$ factorial arrangement involving 2 crossbreeds and 3 high-fiber diets. The experiment lasted 15 d with 10 d for diets adaptation, 3 d for feces collection and 2 d for digesta collection. Three diets were based on corn and soybean meal with 25% wheat middlings, rice bran and alfalfa meal respectively. Results: DBJ had a greater (p<0.05) AID of isoleucine, leucine, lysine, phenylalanine and valine and a lower (p<0.05) AID of methionine than DLY. The hindgut disappearance of acid detergent fiber for DBJ was greater (p<0.05) than DLY. The ATTD of gross energy, dry matter, organic matter, neutral detergent fiber and acid detergent fiber in wheat middlings diet were greater (p<0.05) than in rice bran and alfalfa meal diets. The hindgut disappearance of neutral detergent fiber and acid detergent fiber in wheat middlings diet or rice bran diet were the highest or lowest (p<0.05), and those of alfalfa meal diet were the middle. Barrows fed rice bran diet had a greater (p<0.05) hindgut disappearance of gross energy, dry matter and organic matter and lower hindgut disappearance of neutral detergent fiber and acid detergent fiber than barrows fed alfalfa meal diet Conclusion: DBJ growing barrows showed a significant higher digestibility of fiber in the hindgut and most IAA in the small intestine compared with DLY barrows. The digestibilities of chemical constituents and IAA were affected by the diets formulated with different fiber sources.

목질바이오매스 에너지 부산물(리그닌)이용에 관한 연구 동향 (A Research Trend on Utilization of the Byproducts(Lignin) from Bioethanol Production Process with Lignocellulosic Biomass: A Literature Review)

  • 김영숙
    • Journal of Forest and Environmental Science
    • /
    • 제27권3호
    • /
    • pp.183-194
    • /
    • 2011
  • This study reviewed on the research trend of sources and utilization of the byproducts(Lignin) from bioethanol production process with lignocellulosic biomass such as wood, agri-processing by-products(corn fiber, sugarcane bagasse etc.) and energy crops(switch grass, poplar, Miscanthus etc.). During biochemical conversion process, only Cellulose and hemicellulosic fractions are converted into fermentable sugar, but lignin which represents the third largest fraction of lignocellulosic biomass is not convertible into fermentable sugars. It is therefore extremely important to recover and convert biomass-derived Lignin into high-value products to maintain economic competitiveness of cellulosic ethanol processes. It was introduced that lignin types and characteristics were different from various isolation methods and biomass sources. Also utilization and potentiality for market of those were discussed.