• 제목/요약/키워드: Water-holding

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Muscle Fiber Characteristics and Their Relationship to Water Holding Capacity of Longissimus dorsi Muscle in Brahman and Charolais Crossbred Bulls

  • Waritthitham, A.;Lambertz, C.;Langholz, H.-J.;Wicke, M.;Gauly, M.
    • Asian-Australasian Journal of Animal Sciences
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    • 제23권5호
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    • pp.665-671
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    • 2010
  • Muscle fiber characteristics and their relationship to water-holding capacity of longissimus dorsi (ld) muscle were studied in Brahman (BRA) and Charolais (CHA) crossbred bulls fattened under practical farm conditions. Thirty-four BRA and 34 CHA bulls were randomly selected and slaughtered at 500, 550 and 600 kg live weight. Parameters of water-holding capacity such as drip, ageing, thawing, cooking and grilling loss were determined. Muscle fiber characteristics were conducted for muscle fiber type percentage and cross-sectional areas of slow- and fast-twitch fiber types, and correlation coefficients to water-holding capacity parameters were calculated. Results showed that CHA meat had a better water-holding capacity (less ageing, thawing and grilling loss) when compared with BRA, whereas slaughter weights had no significant effects on these parameters. Furthermore, there were no significant differences between genotypes and slaughter weights in muscle fiber type percentage and cross-sectional areas of ld muscle. Slow- and fast-twitch fiber types of all experimental groups averaged 24.4 and 75.6%, respectively. Cross-sectional areas of fast-twitch fibers had almost twice the size of slow-twitch fibers (6,721 and 3,713 ${\mu}m^2$, respectively). The correlation between muscle fiber area and water-holding capacity indicated that muscles with larger fiber areas had a lower drip and ageing loss but a higher cooking and grilling loss.

건미역의 수침에 따른 흡수율과 보수율, 색도 및 무기성분의 함량 변화 (Changes in Water Absorption, Water-holding Capacity, Chromaticity and Mineral Contents of Dried Sea Mustards on Soaking)

  • 한재숙;이연정;이신정
    • 동아시아식생활학회지
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    • 제11권3호
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    • pp.209-218
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    • 2001
  • This study was conducted to examine the water absorption, water-holding capacity, color and mineral contents in natural and cultured dried sea mustards on soaking treatment. Four dried samples of natural and cultured sea mustards were used for the experiments. The effects of soaking treatment on water absorption and water-holding capacity in sea mustards were examined, as the results, these were rapidly accelerated 5 minutes after soaking. It showed that water-holding capacity was significantly high in the case of high absorption of water by soaking. The L, a and b values were increased until 30 minutes after soaking. There was significant difference for potassium content between dried natural and dried cultured sea mustards and the natural sea mustard was 10 times as high as the cultured sample. All mineral elements in these materials were significantly decreased and especially, potassium were significantly more decreased at 50~80% of total content by soaking treatment. Ca/ P ratio in these materials by soaking was about 2~3 : 1 levels.

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Effects of Surfactant Tween 80 on Enzymatic Accessibility and Degradation of Orchardgrass (Dactylis glomerata L.) at Different Growth Stages

  • Goto, M.;Bae, Hee-Dong;Yahaya, M.S.;Karita, S.;Wanjae, K.;Baah, J.;Sugawara, K.;Cheng, K.J.
    • Asian-Australasian Journal of Animal Sciences
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    • 제16권1호
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    • pp.83-87
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    • 2003
  • The study evaluates the enzymatic dry matter (DM) degradability and water holding capacity of leaf and stem fractions of orchardgrass (Dactylis glomerata L.) at different growth stages with or without the presence of surfactant Tween 80. While Tween 80 significantly (p<0.05) increased water and enzyme holding capacities in the leaf blades fraction, less was observed in the fraction of leaf sheath and stem of orchardgrass. The enzyme holding capacity in the leaves was also altered more than that for water holding capacity. This resulted in the increased rate and extent of enzymatic hydrolysis of the leaf blade fractions at two growth stages, whereas little was with leaf sheath and stem fractions. It was also observed that at 0.005% concentrations of Tween 80 the enzymatic DM degradability of young leaf blades was higher (p<0.05) by 20-30% compared to that of the control, as well as for water and enzyme holding capacity. For matured leaf blades the DM degradability were increased with over 0.01% concentrations of the surfactant, but the increase was less than leaf blades of young orchardgrass. This result suggests the possibility of using the surfactant Tween 80 to improve forage digestibility in the rumen.

후코이단의 보습제 및 화장품재료로서 특성 (Properties of Fucoidan as Raw Materials of Water-holding Cream and Cosmetics)

  • 차성한;이정식;김영숙;김동욱;문재천;박권필
    • Korean Chemical Engineering Research
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    • 제48권1호
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    • pp.27-32
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    • 2010
  • 후코이단을 보습제 및 기능성화장품 소재로 사용하기 위한 후코이단 특성 및 그 효과에 대해 연구하였다. 후코이단은 미역 포자엽에서 추출하였다. 화장품 소재 시험으로는 보습력 측정, 항산화(DPPH assay, radical scavenging), 안전성(MTT assay)을 실시하였다. 후코이단의 보습력은 최고의 보습제 중의 하나인 히아루론산의 보습력보다 높았고, 분자량이 감소함에 따라 보습력이 약간 증가하였다. 후코이단은 높은 안전성과 항산화력을 보였다. 후코이단의 보습력 및 항알레르기 효과를 평가하기 위해 아토피 환자 46명에게 후코이단 크림을 6주간 적용하였다. 증상 정도를 나타내는 IGA 값이 3.04에서 2.15로 감소해 39.8%의 증상개선 효과가 있었다.

Bacillus subtilis와 Lactobacillus bulgaricus에 의한 청국장 단백질의 용해성, 점성, 보수성 및 보유성 (Solubility, Viscosity, Water Holding Capacity, and Oil Holding Capacity of Soybean Proteins by Bacillus subtilis and/or Lactobacillus bulgaricus)

  • 이진우
    • 한국지역사회생활과학회지
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    • 제18권3호
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    • pp.399-406
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    • 2007
  • Soybean seeds were fermented by Bacillus subtilis and/or Lactobacillus bulgaricus to improve solubility, viscosity, water holding capacity and oil holding capacity of soybean proteins in Chongkukjang. The maximum colony forming unit and protease activity of B. subtilis or L bulgaricus were observed after 60 hours of fermentation, and those of the mixed fermentation by two microorganisms were steadily increased during the fermentation periods. Solubilities of soybean proteins by B. subtilis or L bulgaricus were steadily increased before the values were considerably increased to 60 hours of fermentation, whereas water holding capacities of the proteins were decreased by B. subtilis or L. bulgaricus and those of the mixed fermentation were decreased progressively. Viscosities of soybean proteins by B. subtilis and/or L. bulgaricus were decreased progressively during the fermentation. Viscosities of soybean proteins by B. subtilis and/or L. bulgaricus were decreased progressively during the fermentation. Oil holding capacities of soybeans by B. subtilis or L. bulgaricus were maximum at 20 or 80 hours of fermentation and those of the mixed fermentation were decreased after 10 hours of the fermentation.

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Yoghurt의 안정제 종류에 따른 물성 변화 (Changes of Rheological Properties of Yoghurt by Different Kinds Stabilizers)

  • 최순호;장운기;정종국;오동규;이부웅
    • 한국축산식품학회지
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    • 제18권1호
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    • pp.35-41
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    • 1998
  • The objective of this study was to examine the changes of physical properties by additions of different kinds of stabilizers milk proteins concentration, when stored at 4$^{\circ}C$ or 20$^{\circ}C$ for yoghurt. the results were summarized as follows: 1. Addition of 2% carboxyl methyl cellulose and carrageenan, gelation 0.4%, pectin and starch 0.6%, and carrageenan & pectin 0.8% in the manufacture of yoghurt increased the viscosity, water-holding capacity and protein hydration of yoghurt. 2. Addition of 3% skim milk powder, Ca-caseinate or Na-caseinate 0.6% increased the viscosity, water-holding capacity and protein hydration of yoghurt. 3. Twenty five percent of evaporation of milk promoted to build up the optimal structure of the micelles of yoghurt and improved viscosity, water-holding capacity and protein hydration of yoghurt. 4. Addition of stabilizers to yoghurt showed an increase of viscosity, water-holding capacity and protein hydration when compared with non-addition of stabilizers to yoghurt at 4$^{\circ}C$, 20$^{\circ}C$ storage for 12hrs, 96hrs followed by the decrease of it.

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어육(魚肉) 연제품(煉製品)의 보수력(保水力)에 관(關)한 연구(硏究) (A Study on Water Holding Capacity of Fish Meat Paste Products)

  • 김무남;조상준;이강호;최진호
    • 한국식품영양과학회지
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    • 제7권1호
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    • pp.43-52
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    • 1978
  • It is well known that water holding capacity plays an important role in processing such meat products as frankfurter-type sausage and fish meat paste products as kamaboko and fish sausage. Consumer qualities of meat products, such as appearance, flavor, as well as drip and shrinkage on cooking, depend greatly on the degree of water binding. In this paper, the water holding capacities of fish paste and salt added paste of white corvenia, Argyrosomus argentatus and file fish, Novodon modestus were measured by centrifuging and press method before and after cooking. And the effects of the addition of phosphates and starch to enhance water binding and stabilize gel formation were also discussed. In addition, the experimental conditions which are suitable to determine the water binding of fish meat paste product were suggested. The results were expressed in percent of water absorbed by the filter paper when pressed or released by pressor or centrifuge to the weight of sample. From the results. a proper condition to measure the water holding capacity of fish meat paste was that 3.0 g of sample which was previously added with 10 percent water was centrifuged at 13,400 G or 12,000 rpm for 15 minutes for the centriguging method and for press method, 0.3 g sample with 10 percent of water added was extracted by an oil pressor at $30\;kg/cm^2$ for 1 minute. Water holding capacity of fresh paste of white corvenia was relatively higher than that of file fish and the difference between species of fish was greater than the difference between measurments by two methods. Sodium chloride had a great effect on enhancing the water holding capacity of fish meat paste giving better effect when 3.0 percent of salt was added. Phosphates used except calcium phosphate revealed a certain enhancement in water binding, yielding best effect at 0.3 percent addition, and metaphosphate seemed to be more effective in order. The addition of corn starch, however, appeared to be not so effective for enhancement of water binding in fresh-salt-added fish meat paste but in cooked fish paste which might be attributed to absorption of water by starch grain and swelling during the heating and consequently enforced gel strength of cooked fish paste. And the water holding capacity of cooked fish paste was proportionally related to its gel strength.

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오일 팜 수간 유래 CNF (cellulose nanofibrils)의 화장품 보습제 적용을 위한 보습력 평가 (Evaluation of water holding property for applying a cosmetic moisturizer from oil palm trunk CNF)

  • 송우용;신수정
    • 펄프종이기술
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    • 제48권2호
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    • pp.91-98
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    • 2016
  • Cellulose nanofibrils (CNF) was made from oil palm trunk (OPT) with soda-anthraquinone pulping, chlorine dioxide bleaching, carboxymethylation, followed by mechanical grinding. Size of this CNF was 16-40 nm of width confirmed by TEM. To evaluate CNF from OPT as cosmetics raw materials for moisturizing component, water holding properties was compared with hyaluronic acid and collagen. CNF from OPT had better water holding property than collagen or hyaluronic acid whether phenoxyethanol was added as antiseptic or without additive.

모델시스템에서 기름과 당이 분리대두단백 두부의 특성에 미치는 영향 (Effects of Oil and Sugar on SPI-Tofu Characteristics Under Model System)

  • 김동원;구경형;최희숙;김우정
    • 한국식품영양과학회지
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    • 제23권1호
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    • pp.90-97
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    • 1994
  • Effect of addition of oil , sucrose, dextrin and oil-sucrose (1 : 1 w/w) mixture on SPI tofu was investigated. The characteristics measured were yield , water holding capacity , textural and organoleptic properties. THe SPI tofufwas prepared by coagulation of soyprotein isolate (SP) suspensino by CaCl$_2$ , CaSo$_4$ an dGDL , followed by compression . Addition of oil to SPI increased the tofu yield and water holding capacity, particulary for those tofu coagulated by CaCl$_2$. Eventhough dextrin addition decreased the yield, it showed the most improving effect on water holding capacity. The tofu prepared by CaSO$_4$coagulant resulted highest in yield and water holding capacity. Hardness was found to be decreased as the oil, sucrose and dextrin added more and adhesiveness, cohesiveness and guminess were also affected. The sensory evaluation showed the SPI tofu prepared by CaSO$_4$ and 10% addition of oil and sucrose mixture to be realtively high in hardness , elasticity and uniformity of the texture.

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Effects of additional electrical stimulation and pre-rigor conditioning temperature on the ageing potential of hot-boned bovine muscles

  • Balan, Prabhu;Farouk, Mustafa M.;Staincliffe, Maryann;Stuart, Adam D;Kemp, Robert;Craigie, Cameron
    • Asian-Australasian Journal of Animal Sciences
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    • 제33권10호
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    • pp.1642-1655
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    • 2020
  • Objective: The aim of this study is to characterize the impact of additional electrical stimulation (AES) and various pre-rigor holding temperatures (for 3 h) on the ageing-potential of hot boned bovine M. longissimus lumborum (LL). Methods: Paired LL loins from 12 bulls were hot-boned within 40 min of slaughter, immediate AES applied and subjected to various holding temperatures (5℃, 15℃, 25℃, and 35℃) for 3 h. Results: AES did not accelerate the rate of rigor attainment, but the 3 h pre-rigor holding temperature did. Shear force values decreased as the pre-rigor holding temperatures increased. AES and holding for 3 h (at 25℃) resulted in higher water-holding capacity. Conclusion: Data confirmed that AES did not influence the various meat quality parameters in the present study, but pre-rigor holding temperature (25℃) alone or in combination with AES resulted in superior meat quality.