• Title/Summary/Keyword: Crude protein level

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Effect of Feeding Live Yeast (Saecharomyces cerevisiae) on Nutrient Utilization and Changes of Intestinal Microorganism in Broiler Chicks (육계에 있어서 활성효모 (Saccharomyces cerevisiae)의 급여가 영양소 이용성과 장내 미생물의 변화에 미치는 영향)

  • 이현우;김인호;김춘수
    • Korean Journal of Poultry Science
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    • v.22 no.4
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    • pp.203-211
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    • 1995
  • In order to investigate the effect of feeding live yeast on growth performance, nutrients utilization, tibia mineral deposit and intestinal microorganism changes, a growth assay was conducted with 360 broiler chicks. Treatments were four levels of yeast as 0, 0.025, 0.05 and 0.1% in 1.83% tricalcium phosphate and two levels of yeast as 0 and 0.05% in 1.15% tricalcium phosphate. The crude protein content of live yeast was 45%, and 97% of it was in the pure protein form, with 46.6% of essential amino acids and 53.4% of non-essential amino acids. Growth performance was tended to increase by feeding the yeast but there was no significant difference(P>.05). The protein digestibility was increased as the feeding level of yeast increased. However, digestibilities of fat, fiber, calcium and phosphorus were not affected by the yeast. Ash and calcium content of tibia were increased as the level of yeast increased. Total number of E. coli in small intestine was significantly decreased(P<.05) in chicks fed yeast. Total number of Lactobaci1lus was significantly increased by the yeast feeding. The changes of microorganism in cecum had the same trend with the changes of microorganism in small intestine.

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Ruminal Characteristics, Blood pH, Blood Urea Nitrogen and Nitrogen Balance in Nili-ravi Buffalo (Bubalus bubalis) Bulls Fed Diets Containing Various Levels of Ruminally Degradable Protein

  • Javaid, A.;Nisa, Mahr-un;Sarwar, M.;Aasif Shahzad, M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.1
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    • pp.51-58
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    • 2008
  • Four ruminally cannulated Nili-ravi buffalo bulls were used in a $4{\times}4$ Latin Square design to determine the influence of varying levels of ruminally degradable protein (RDP) on ruminal characteristics, digestibility, blood pH, blood urea nitrogen (BUN) and nitrogen (N) balance. Four isonitrogenous and isocaloric diets were formulated (NRC, 2001). The control diet contained 50% RDP. The medium (MRDP), high (HRDP) and very high (VHRDP) ruminally degradable protein diets had 66, 82 and 100% RDP, respectively. Increasing the level of dietary RDP resulted in a linear decrease in ruminal pH. A quadratic effect of RDP on ruminal pH was also observed with quadratic maxima at the 66% RDP diet. Dietary RDP had a quadratic effect on total bacterial and protozoal count with maximum microbial count at the 82% RDP diet. Increased microbial count was due to increasing level of ruminal ammonia nitrogen ($NH_3-N$). Increasing dietary RDP resulted in a linear increase in dry matter digestibility. Provision of an adequate amount of RDP caused optimum microbial activity, which resulted in improvement in DM digestibility. Increasing the level of dietary RDP resulted in a linear decrease in crude protein (CP) and neutral detergent fiber digestibility. Blood pH remained unaltered across all diets. A linear increase in ruminal $NH_3-N$ and BUN was noted with increasing level of dietary RDP. The increase in BUN was due to increased ruminal $NH_3-N$ concentrations. A positive N balance was noted across all diets. The results are interpreted to suggest that buffalo bulls can utilize up to 82% RDP of total CP (16%) with optimum results.

Physicochemical Characteristics of Jujube Concentrates Prepared by Boiling (가열처리한 대추 농축액의 물리화학적 특성)

  • Park, Byung-Hak;Chae, Kyung-Yeon;Hong, Jin-Sook
    • Journal of the East Asian Society of Dietary Life
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    • v.18 no.2
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    • pp.190-197
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    • 2008
  • The aim of this study was to determine the optimal cooking conditions in preparing jujube concentrates using various boiling times (5, 10, 15, 20 hours). The moisture contents of the concentrate samples ranged from 38.86 to 42.36%. Crude protein content was highest in the 15 hr-boiled concentrate, crude fat was highest in the 20 hr-boiled concentrate and both the 15 and 20 hr boiled concentrates had high crude fiber contents. There were no differences in color L- and a-values by boiling time; however, the b-value decreased with increasing boiling time. The pH levels of the concentrates ranged from 5.24 to 5.27, and the brix level increased with increasing boiling time. Glucose was the primary of free sugar in the concentrates and its highest level was 102.3 ${\mu}M$ in the 20 hr-boiled concentrate. The 15 hr-boiled concentrate had the highest electron donating ability to 46.68%. The total polyphenol contents of the concentrates ranged from 21.53 to 24.56%, in which the 15-boiled concentrate had the highest level (24.56%). In the sensory evaluation, the 15-hr-boiled concentrate again performed well, showing the highest overall acceptability scores. From these results, 15 hrs was the optimal boiling time for preparing jujube concentrate in terms of obtaining functional compounds and overall product acceptability.

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Effects of Inonotus obliquus Mycelia on the Level of Plasma Glucose and Lipids in Streptozotocin-induced Diabetic Rats (차가버섯 균사체가 Streptozotocin으로 유발된 당뇨 흰쥐의 혈장 포도당과 지질 농도에 미치는 영향)

  • Yang, Byung-Keun;Cho, Kai-Yip;Wilson, Michael A.;Song, Chi-Hyun
    • The Korean Journal of Mycology
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    • v.33 no.2
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    • pp.64-68
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    • 2005
  • This investigation was undertaken to study the effects of oral administration of Inonotus obliquus mycelia produced by a submerged culture on plasma glucose level and other biochemical parameters in streptozotocin (STZ)-induced diabetic rats. The mycelia, at the dose of 200 mg/kg body weight (BW), substantially reduced the plasma glucose level by as much as 23.1% as compared to the control group. The levels of total cholesterol and triglyceride in plasma were reduced to the extent of 12.6% and 22.6%, respectively. The activities of alanine transaminase (ALT) and aspartate transaminase (AST) were decreased by 27.6% and 21.9%, respectively, under the influence of I. obliquus mycelia. The general components of I. obliquus mycelia were found to contain 5.55% crude ash, 2.35% crude fat, 28.29% crude protein, 9.53% carbohydrate, and 54.28% dietary fiber.

Quality Characteristics and Antioxidative Activities of Majakgwa added with Fermented Turmeric Powder (발효울금 분말 첨가가 매작과의 품질특성 및 항산화에 미치는 영향)

  • Choi, Soo-Nam;Choe, Eun-Hui;Yoo, Seung Seok
    • Korean journal of food and cookery science
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    • v.29 no.3
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    • pp.223-231
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    • 2013
  • This study was carried out for the purpose of inquiring into the effects on shelf-life, quality characteristics, and antioxidant activities, of Majakgwa. This study also regards to the use fermented turmeric powder at varying concentrations in the recipe. The proximate composition of fermented turmeric powder, crude fat, carbohydrate, crude protein, and crude ash was decreased. Viewed division compared to the freeze-dried turmeric curcumin content was increased during fermentation due to the increase of mineral content. With an increased of the amount of fermented turmeric powder used in Majakgwa recipes, the pH of the dough was higher than that of the controlled group. The acid value of Maejakgwa was lowered down, and most effectively controled when adding Turmeric power by 3~6%, and the peroxide value shows high antioxidant ability from the initial storagr period when adding 6%. TBA value appears to have the highest antioxidant ability, when adding 6%, showing lower increasing rate than that of sample group added 0~3% Turmeric powder. When added 9% or more, however, it shows higher TBA value comparing with normal Maejakgwa, the reference group, which indicates on the contrary that the antioxidant ability is lowering. The bitter taste, exterior color, incense of Turmeric, solidity, and crispy level of Maejakgwa with fermented Turmeric powder have been increased significantly as per increase of fermented Turmeric powder, and the sample group added with 9% have shown the best result in the overall taste level. It is anticipated that adding 6~9% of fermented Turmeric powder can increase the storage capability to give the best taste level and effective antioxidant ability by minimizing the off-flavor and bitter taste, through the research as above, which would be the most appropriate blending ratio of Turmeric powder for producing Maejakgwa.

Quality Characteristics of Dried Noodle Prepared with Strawberry Powder (딸기분말을 첨가한 국수의 품질 특성)

  • Park, Bock-Hee;Koh, Kyeong-Mi;Cha, Min-hye;Kim, Ok-Joo;Jeon, Eun-Raye
    • Journal of the Korean Society of Food Culture
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    • v.31 no.1
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    • pp.88-95
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    • 2016
  • This study evaluated the quality characteristics of dried noodles prepared with strawberry powder in order to determine the most preferred noodle recipe for children's school meals. The proximate composition of strawberry powder used was as follows: moisture, 3.39%; crude protein, 1.53%; crude lipid, 0.97%; crude ash, 0.82%; and carbohydrates, 93.29%. When viscosity of the composite strawberry powder-wheat flours was measured by amylograph. Gelatinization point, maximum viscosity, viscosity at $95^{\circ}C$ and viscosity at $95^{\circ}C$ after 15 min decreased as the level of strawberry powder increased. As the level of strawberry powder increased, both L and b color values decreased, whereas a value increased. Weight, water absorption and volume of cooked noodles decreased, whereas turbidity of soup increased. For textural properties, addition of strawberry powder to cooked noodles reduced hardness, chewiness and brittleness. Overall preference according to the results of the sensory evaluation, noodles added with 6% strawberry powder were the most preferred. According to the results, the addition of strawberry powder can positively affect the overall sensory evaluation of dried noodles, and 6% is the optimal level for addition.

A Study on the Standardization and Cooking Properties of Imjasootang (임자수탕(荏子水湯) 조리법의 표준화와 품질특성에 관한 연구)

  • 김승주;조진아;조정순;조후종
    • Korean journal of food and cookery science
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    • v.15 no.2
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    • pp.197-202
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    • 1999
  • The objective of this study was to standardized the cooking method of Imjasootang, a traditional health food in summer. By mixing chicken soup with 20 g (I$_1$), 30 g (I$_2$), 40 g (I$_3$), 50 g (I$_4$) of seasam seeds, the distinctive characteristic and level of preference of Imjasootang were examined through the analyses of the proximate composition, fatty acid contents, color index, turbidity, brix$^{\circ}$, and sensory evaluation. 1. The proximate composition of Imjasootang was 90.2∼95.1% of total moisture, 0.985∼1.271% of crude protein, 0.90∼0.98% of crude fat, 1.592∼2.456% of nonfiber, 0.003∼0.004% of fiber, and 0.77∼0.97% of crude ash. Fatty acid were composed of 15.15∼17.36% of saturated fatty acid and 79.73∼82.54% of unsaturated fatty acid. Imjasootang contains high level of oleic acid and linoleic acid which were dependant on the content of seasame seeds. 2. For color index of samples, the lightness ranged 47.2∼56.9, “a”values 1.82∼2.15%, and “b”values 15.5∼16.5%. The turbidity of samples ranged 39∼61%, in which I$_4$ (chicken stock 100 g+sesame seed 50 g+water 25 g) was the most turbid. Solid content was also the highest in I$_4$, ranging 1.4∼5.1%. 3. In sensory evaluation, all sesame seed Imjasootangs had no significance differences in appearance. The higher the level of sesame seed in Imjasootangs, the more Imjasootang was preferred in terms of nutty aroma, color nutty taste. and viscosity. I$_4$ had the strongest nutty aroma. I$_2$ (chicken stock 100 g+sesame seed 30 g+water 15 g) and I$_3$ (chicken stock 100 g+sesame seed 40 g+water 20 g) were the best in the overall preference.

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Sensory Characteristics and Nutritional Analysis of Sherbet Ice-cream with Mulberry Fruit (오디 샤베트 아이스크림의 관능적 특성 및 영양성분 분석)

  • 김현복;김애정;여정숙;장승종
    • Journal of Sericultural and Entomological Science
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    • v.45 no.2
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    • pp.85-89
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    • 2003
  • This study was carried out in order to investigate the sensory characteristics and nutritional analysis of sherbet ice-cream and ice-bar with mulberry fruits. In the sensory characteristics, sherbet ice-cream and ice-bar with 2% mulberry fruit extracts were revealed to have highest level on overall quality, color, texture, taste, and flavor. Content of crude protein, crude fat and crude ash were observed in higher level in 3% mulberry fruit extracts than others. In mineral analysis, Ca and K content were the highest in sherbet ice-cream and ice-bar with mulberry fruits. Also Mg, Na, Fe and Zn content were higher level in 3% mulberry fruit extracts than others.

Changes in chemical Components of Muscle from Red Sea Bream (Pagrus major)by Ulva pertusa Extract (구멍갈파래 추출물에 의한 참돔 근육의 화학성분 변화)

  • 배태진;강동수;최옥수;이영재;김경은;김현주
    • Journal of Life Science
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    • v.10 no.5
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    • pp.447-455
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    • 2000
  • A eight weeks feeding experiment was conducted to investigate the effects of different dietary dimethyl-$\beta$-propiothetin (DMPT) levels on growth and chemical components in red sea bream (Pagrus major). The content of DMPT extracted from Ulva pertusa by auroclaving was 32.5mg%. Body weight gain, feed efficiency and feed intake were significantly increased with dietary DMPT level. After eight weeks of feeding trial, moisture content decreased with supplemented DMPT level, while crude protein and lipid contents increased with dietary DMPT level. Amino acid contents of muscle was elevated in the DMPT added groups compared to control group. Amino acid composition of muscle in fish fed the diets supplemented DMPT was not different to that of control group. Fatty acid contents of muscle in fish increased with dietary DMPT level.

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Changes in Chemical Components of Muscle from Korean Rockfish (Sebastes schlegeli) by Enteromorpha intestinalis Extract (창자파래 추출물에 의한 조피볼락 근육의 화학성분 변화)

  • 배태진;강동수;최옥수;이영재;김경은;김현주
    • Journal of Life Science
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    • v.10 no.6
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    • pp.548-557
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    • 2000
  • A eight weeks feeding experiment was conducted to investigate the effects of different dietary dimethyl-$\beta$-propiothetin (DMPT) levels on growth and chemical components in Korean rockfish (Sebastes schlegeli). The content of DMPT extracted from Enteromorpha intestinalis by autoclaving was 31.1 mg%. Body weight gain and feed efficiency were significantly increased with dietary DMPT level. After eight weeks of feeding trial, moisture content decreased with supplemented DMPT level, while crude protein and lipid contents increased with dietary DMPT level. Amino acid contents of muscle was elevated in the DMPT added groups compared to control group. Amino acid composition of muscle in fish fed the diets supplemented DMPT was not different to that of control group. Fatty acid contents of muscle in fish increased with dietary DMPT level.

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