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The Quality Properties of Dotoridasik with added Acorn Powder (도토리가루를 첨가한 도토리다식의 특성)

  • Yoon, Sook-Ja;Lee, Mi-Young
    • Korean journal of food and cookery science
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    • v.22 no.6 s.96
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    • pp.849-854
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    • 2006
  • The objective of this study was to evaluate the quality characteristics of Dotoridasik prepared by the addition of acorn powder (0%, 20%, 40%, 60%, 80%). The Proximate components were 85.89% carbohydrate, 1.38% crude fat, 0.84% crude protein and 0.32% crude ash. The moisture content of Dotoridasik showed no significant difference between the added acorn powder and control groups. The following Hunter color values are not part of the sensory evaluation testing in the results of for Dotoridasik, decreased while the a and b values increased with increasing acorn powder addition. The bitter taste was evaluated as being improved with increasing acorn powder addition. Dotoridasik with 40% acorn powder showed the highest acceptance. In the mechanical evaluation, hardness recording which from control Will increase with acorn powder it shows a high shame(p<0.05), the adhesiveness result springiness it was not visible a consider difference especially also utterly unintelligible).

Analysis of Chemical Compounds on Tuna Processing By-products (참치가공 부산물의 부위별 성분 분석)

  • 강치희;정혜영;이대희;박재갑;하정욱;이승철;황용일
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.29 no.6
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    • pp.981-986
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    • 2000
  • In the process of tuna for food, the unprocessed parts of the whole fish range from 30 to 35%, which are mostly used as animal feed stuff, and wasted. Thus, preliminary study on the recycling of the by-product was done to ultimately produce highly valuable products. The study was peformed on skin, skin flesh, tail flesh, dark flesh and abdominal flesh of the tuna. First, crude protein was the most abundant in the skin at 26.31%. About 21% of the crude protein were found in the other samples. Second, crude fat was greatly obtained in the skin at 15.58%. Interestingly, only 0.75% of crude fat was found in the dark flesh. Third, vitamin C and vitamin B group were highly measured in the abdominal flesh and the dark flesh, respectively. Importantly, docosahexaenoic acid (DHA, C22 : 6 $\omega$ -3) and eicosapentaenoic acid (EPA, C22 : 6 $\omega$ -3) which are highly unsaturated fatty acids, were abundant in the skin and skin flesh. To determine the effect of high temperature to the unprocessed parts, the samples were exposed to steam for 30 min. After this processing, 15-methylhexadecanoic acid (i-17 : 0) were in- creased in the skin flesh and the dark flesh. Furthermore, 3-hydroxytetradecanoic acid (3-OH 14 : 0), heptadecanoic acid (17 : 0), 2-hydroxyhexadecanoic acid (2-OH 16 : 0) and nonadecanoic acid (19 : 0) hat were not found before with steam were detected. The DHA and EPA in the dark flesh and the DHA in the skin were stable, respectively, even after the treatment.

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Nutritional Properties of Body Composition Based on Captured Location and Size in Wild Eels, Anguilla japonica (자연산 뱀장어의 채집지역 및 크기에 따른 체성분의 영양학적 특성)

  • 전민지;한경민;유진형;이계안;배승철
    • Journal of Aquaculture
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    • v.16 no.4
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    • pp.273-278
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    • 2003
  • The present study provides nutritional characteristics of body composition based on the different collected locations and body sizes in wild eels, Anguilla japonica. Eels were collected in Kyungho river, near the Sachun bay (Gyeongnam) and Inchun river, near Gochang, Jeonnam. Eels were divided by size into the following groups: less than 100 g (Gochang: 75.8$\pm$17.6 g, Sachun: 89.3$\pm$6.42 g) and more than 200 g group (Gochang: 215$\pm$8.95 g, Sachun: 236$\pm$11.7 g). The moisture content of individuals in Gochang area (Gw) was higher than that in Sacheon area (Sw). In the results of proximate analysis, the ranges of moisture, crude protein, crude fat, and crude ash were 63∼72, 16∼20, 6.1∼15.4 and 2.2∼2.8%, respectively. Moisture and crude fat were significantly different (P<0.05) based on the captured locations. In fatty acid composition, the ranges of saturates, monoenes, polyenes, and n-3 PUFA content were 38.0∼48.0, 51.5∼58.5, 1.95∼4.12 and 0.68∼1.53%, respectively. It was significantly different (P<0.05) based on the captured locations. In the amino acid composition, the ranges of essential and non-essential amino acids were 7.11∼12.5 and 8.34∼ 12.9%, respectively. These values were not significantly different (P>0.05) based on the captured locations, however these were significant different (P<0.05) based on their body weight. Therefore, these results indicated that the different body composition depends on the different captured locations and body sizes. Furthermore, it is necessary to examine more varied locations and body sizes for their body composition in eels.

Analysis of Food Components of Carthamus Tinctorius L. Seed and its Antimicrobial Activity (홍화씨의 식품학적 성분 분석 및 항균활성)

  • Yu, Seok-Yeong;Lee, Young-Jun;Kang, Suk-Nam;Lee, Seong-Kap;Jang, Jung-Young;Lee, Hyo-Ku;Lim, Jeong-Ho;Lee, Ok-Hwan
    • Food Science and Preservation
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    • v.20 no.2
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    • pp.227-233
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    • 2013
  • This study was conducted to investigate the physicochemical characteristic of Carthamus tinctorius L. seed and to assess its total phenol content, total flavonoids content and antimicrobial activity. The moisture, crude protein, crude fat, crude ash and carbohydrates of the Carthamus tinctorius L. seed were 5.58, 37.16, 13.69, 3.52, and 40.05%, respectively. Total amino acid in Carthamus tinctorius L. seed was 391.99 mg%. The major free sugar of Carthamus tinctorius L. seed were fructose(3.29%) and sucrose(1.74%). Linoleic acid(79.46%) was a major fatty acids in the crude fat of Carthamus tinctorius L. seed. The K and Ca contents were the highest in Carthamus tinctorius L. seed. Total phenol and total flavonoids contents of the ethanolic extract were $55.52{\pm}0.99$ mg GAE/g and $78.69{\pm}0.91$ mg QE/g, respectively. The extract from Carthamus tinctorius L. seed showed growth inhibitory effect on Staphylococcus aureus, Salmonella typhimurium, Escheria coli, Candida albicans, Bacillus cereus, Listeria monocytogenes, Vibrio parahaemolyticus, and Clustridium perfringens. These results indicate that the Carthamus tinctorius L. seed extract can inhibit food pathogen associated with total phenol and total flavonoids contents.

Changes in Nutritional Composition of Dropwort (Oenanthe javanica) Ethanol Extracts (에탄올 농도에 따른 미나리 추출물의 영양성분 변화)

  • Won, Beom Young;Shin, Ki Young;Ha, Hyun Jee;Yun, Yeo Sang;Kim, Ye Ri;Lee, Hyung Gun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.44 no.6
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    • pp.882-887
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    • 2015
  • This study evaluated the nutritional compositions of dropwort (Oenanthe javanica) extracts depending on the ethanol concentrations. Extractions were performed with hot water, 50% ethanol, 80% ethanol, and 95% ethanol for 4 hours. Changes in yield, as well as total carbohydrate, crude protein, crude fat, total dietary fiber, free sugar, and mineral (Na, Fe, and Ca) contents were investigated. The highest extraction yield of ethanol extracts was 44.67% in 50% ethanol extract of dropwort. Crude protein content reached a maximum of 6.70% while carbohydrate content was highest at 19.6%, in 50% ethanol extract of dropwort. Crude fat content irregularly increased according to ethanol concentration as compared with hot water extract. Total dietary fiber content decreased in ethanol extract, but these changes were not concentration-related. Total sugar contents were highest in hot water and 80% ethanol extracts. Vitamin A content of ethanol extract was higher than that of hot water extract. Mineral (Na, Ca, and Fe) contents were significantly reduced in ethanol extract according to concentration of ethanol, whereas mineral contents were higher in ethanol extract than in hot water extract. Based on this study, ethanol extract of dropwort is more efficient for development of desirable processed foods.

Age-related digestibility of nutrients depending on the moisture content in aged dogs

  • Kim, Ki Hyun;Seo, Kangmin;Cho, Hyun-Woo;Jeon, Jung-Hwan;Kim, Chan Ho;Jung, Jiyeon;Chun, Ju Lan
    • Journal of Animal Science and Technology
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    • v.63 no.6
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    • pp.1355-1361
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    • 2021
  • Digestibility of pet food can affect the health of dog, especially of aged animals. To maintain the health of dogs in an overall good status it is necessary to provide nutritionally balanced food. For example, the digestibility of dogs was known to be decreased along aging. In addition, losing teethes is an often event in aged dogs that could induce a problem to eat a large size dry pet food. Nonetheless, few detailed information is available on the most suited feeding for aged dogs. As part of the nutritional study of food for aged dogs, in this study, we tested whether food type impacts on digestibility on adult versus senior dogs. The methodology to measure the digestibility of nutrients was chosen the index method using chromium oxide. Dogs were fed the same commercial dry or wet diets, which were supplemented with 0.5% chromium oxide. The wet food was prepared by adding twice volume of water in the dry food prior to incubated overnight (14-16 hours) at room temperature. After five days, their feces were collected up to a total weight of > 200 g which was the amount to analyze undigested nutrients in feces as 3 repeats. In the apparent total tract digestibility analysis of the experimental breed, no difference in the digestibility of crude protein, crude fat, crude fiber, ash, and energy was observed regarding the moisture content of the food. Noteworthy, the digestibility of nitrogen free extract was significantly increased in senior dogs fed dry dog food compared with adult dogs fed the same diet, whereas no difference was observed between senior and adult dogs fed wet food. The small breed dogs showed similar results to the experimental breed dogs. However, the digestibility of crude fat was additionally affected by age and food type unlike the experimental breed dogs. This finding suggests that the food moisture content affects the digestibility of nutrients in dogs with aging. Hence, it may be helpful to determine the nutrient contents in foods for senior dogs depending on the food type.

Comparison of Carcass Composition of Iranian Fat-tailed Sheep

  • Kiyanzad, M.R.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.9
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    • pp.1348-1352
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    • 2005
  • Most breeds of sheep in Iran are adapted to their agro ecological niches where it is likely that they were also artificially selected by their owners. In general, most of sheep breeds are multipurpose producing lambs, wool and milk. To compare the physical and chemical composition of the carcasses of ten Iranian native fat-tailed sheep breeds, 243 male lambs (6-7 months of age) of ten fattailed, Iranian breeds of sheep, Sanjabi (S), Ghezel (G), Afshari (A), Mehrabani (M), Lori (L), Lori Bakhtiari (LB), Kordi Khorasan (K), Sangesari (Sa), Baluchi (B) and Chal (C) were studied. Lamb breed group had a significant (p<0.05) effect on all the carcass traits measured. The LB and C lambs showed the same live weight which was significantly (p<0.05) higher than the other breeds. Carcass dressing- out percentage in S lambs was lowest (p<0.05), but not different from G lambs. K and Sa breeds showed the highest (p<0.05) carcass dressing-out percentage. The S lambs had the highest (p<0.05) lean meat percent. Lean meat percentage was not significantly (p>0.05) different in the G, A, M and C breeds. The Sa and K breeds showed the lowest lean meat percent. The S lambs showed the lowest (p<0.05) fat percent in their carcass, while K and Sa showed the highest (p<0.05). Subcutaneous fat in K, Sa and B was higher (p<0.05) than the other breeds. Lambs of S, G, A and M breeds had the lowest subcutaneous fat in their carcasses (p>0.05). Intramascular fat was significantly (p<0.05) lower in M, S and C despite the fact that this values were highest in B and K lambs. The K and Sa breeds had highest fat-tail percentage (p<0.05) in their carcass, whereas S and G showed lowest. Lambs of G, S and A breeds had higher bone percent than other breeds (p<0.05). Lowest bone percent (p<0.05) was seen in K and Sa lambs. The carcass moisture percent was not significantly (p>0.05) different in S, G, A, M, L and C breeds. M lambs showed the lowest crude protein percentage and S breed the highest (p<0.05). There were no significant (p>0.05) differences among other lamb breeds for this trait. Chemical fat percentage was the same in S, G, A, C and M breeds, but significantly (p<0.05) lower from LB, K, Sa and B. Ash percent in S, G and A had no significant (p>0.05) difference. According to higher lean meat and lower fat percentages in the carcass, the ranking of breeds would be S, G, A, M and C.

Influence of Ruminally Protected Fat and Urea Treated Corncobs Ensiled with or without Corn Steep Liquor on Nutrient Intake, Digestibility, Milk Yield and Its Composition in Nili-Ravi Buffaloes

  • Sarwar, M.;Khan, M. Ajmal;Un-Nisa, Mahr
    • Asian-Australasian Journal of Animal Sciences
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    • v.17 no.1
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    • pp.86-93
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    • 2004
  • Sixteen early lactating Nili-Ravi buffaloes, four animals in each group, were used in a Completely Randomized Design to evaluate the effect of varying levels of both ruminally protected fat and urea treated corncobs ensiled with or without corn steep liquor (CSL) on feed intake, digestibility and milk production and its composition. Four experimental diets were formulated. The control (C) diet was balanced to contain 0% fat and 35% urea treated corncobs ensiled with 0% CSL. The low fat (LF), medium fat (MF) and high fat (HF) diets had 45, 55 and 65% urea treated corncobs ensiled with 9% CSL and 2, 4 and 6% ruminally protected fat, respectively. Dry matter, crude protein (CP) and neutral detergent fiber (NDF) intakes by buffaloes remained similar across all treatments. However, DM and NDF as a percent of body weight and digestible DM intakes were higher in HF diet when compared to C, LF and MF diets. Digestible NDF intakes were also significantly higher in HF diet as compared to all other diets. The intakes of ADF and digestible ADF were higher in MF and HF than C and LF diets. The significant variation in digestible DM, ADF and NDF intakes may be attributed to the ammoniation of corncobs along with CSL that caused significant changes in the degradability and digestibility of the diets. Ether extract and digestible EE intakes differed significantly (p<0.05) among all treatments. Intakes of EE were the highest in animals fed HF diet, which was because of added fat. Apparent DM digestibility was the highest in animals C diet and was the lowest in those fed LF diet. Neutral detergent fiber and ADF digestibilities were higher in animals fed diets containing urea treated corncobs ensiled with 9% CSL when compared to those fed diets containing urea treated corncobs ensiled without CSL. Apparent digestibility of CP was noted highest (71.47%) in animals fed HF diet when compared to those fed MF (67.75%), LF (67.04%) and C (65.39%) diets. Milk yield (4% FCM) was the higher in buffaloes fed HF, MF and LF diets than those fed C diet. These results indicated that increasing levels both of fat and urea treated corncobs ensiled with CSL elevated the negative effects of poor quality fibrous feed on milk production by buffaloes.

Body fat distribution and hypertension (신체의 지방분포양상과 고혈압)

  • Lee, Choong-Won;Yoon, Nung-Ki
    • Journal of Preventive Medicine and Public Health
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    • v.24 no.1 s.33
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    • pp.57-69
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    • 1991
  • This study examined the cross-sectional association of central body fat distribution with hypertension as well as the superiority of medial calf skinfold measured as peripheral fat distribution over the conventional triceps skinfold using 450 Korean Navy divers selected by authors' convenience in 1990. Their mean age was 27.9 and range of it was 19-51. The centrally located body fat was approximated by subscapular skinfold and peripherally located fat by triceps and medial calf skinfolds. Four indices were constructed from these skinfold measures to reflect central versus peripheral fat distribution pattern : 2 ratios and 2 differences. After controlling age and overall obesity (body mass index), prevalance odds ratios of the 2/4, 3/4, 4/4 quartiles of subscapular skinfold comparing with lowest 1/4 quartile were 2.05(95% confidence interval, CI 1.18-3.59), 2.02(95% CI 1.06-3.86), 4.00 (95% CI 1.99-8.06) respectively. The difference of subscapular and medial calf skinfolds was associated with hypertension (odds ratio 2.45, 95% CI 1.28-4.68 comparing highest with lowest quartiles). Triceps and medial calf skinfolds alone did not show any odds ratio not including unity. The adjusted odds ratios were generally reduced in small magnitude compared with crude odds ratios not adjusted for age and overall obesity. The medial calf skinfold appeared to be more representative of peripheral body fat distribution than triceps skinfold. These findings suggest that central fat distribution rather than peripheral distribution is associated with hypertension independent of age and overall level of obesity and medial calf skinfold may replace conventional triceps skinfold in predicting peripheral distribution of body fat.

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Studies on the Isolation of Albumin and Globulin from Wheat Germ Protein (밀 배아 단백질중 Albumin과 Globulin의 분리에 관한 연구)

  • Ho, Jeong-Kee;Kim, Dong-Woo;Shin, Doo-Ho;Cho, Kwang-Yun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.15 no.2
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    • pp.128-135
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    • 1986
  • Wheat germ protein was extracted and isolated by a Modified Osborne fractionation method and some properties were investigated. The results are summarized as follows; 1. Approximate compositions of wheat germ were moisture 10.5%, crude protein 22.8%, crude fat 2.4%, crude ash 3.2%, crude fiber 1.5%, respectively. 2. Nitrogen solubilities on various solvents were the lowest as 45.58% by Osborne method and the highest as 79.49% after sequencial extraction of the $H_2O$, 0.5M-NaCl, 70%-ethanol, 0.1N-NaOH. 3. Isolated proteins yielded albumin, globulin, globulin, gliadin and glutelin in the proportion of 20.22: 17.49: 42.58: 19.71, respectively. 4. Spectrophometric chromatograms of isolated protein by Regel-filtration were two peaks in albumin (I ; 8.2%, II ; 91.8%), one peak in globulin (92.8%), respectively. 5. Disc-PAGE patterns were showed about 14 bands in 0.5M-Cl soluble protein, 3bands in crude albumin, 1band in main albumin, 2bands in crude globulin, one band in main globulin under pH 8.3 buffer system (Ornstein and Davis method).

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