• Asian-Australasian Journal of Animal Sciences
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• 제33권7호
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• pp.1148-1155
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• 2020

Objective: The objective was to determine standardized ileal digestibility (SID) of crude protein (CP) and amino acids (AA) in cereal grains and various co-products fed to growing pigs. Methods: Ten feed ingredients tested were barley (9.3% CP), lupin kernels (31.1% CP), and wheat (11.3% CP) as cereal grains, and 2 sources of corn gluten feed produced in China (21.6% CP) and Korea (24.6% CP), corn gluten meal (65.3% CP), lupin hulls (11.6% CP), rice bran (14.5% CP), soybean meal (44.8% CP), and wheat bran (15.4% CP) as co-products. Ten experimental diets were formulated to contain each ingredient as a sole source of N and an N-free diet was used to correct basal endogenous losses of CP and AA. All diets also contained 0.5% Cr₂O₃ as an indigestible index. A replicated 11×6 incomplete Latin square design with 11 dietary treatments, 6 periods, and 22 animals was employed. Twenty-two barrows with an initial body weight of 64.6±4.9 kg were equipped with a T-cannula in the distal ileum. An experimental period consisted of a 4-d adaptation period and a 2-d collection period. Results: The SID of CP in the barley, lupin kernels, wheat, 2 sources of corn gluten feed, corn gluten meal, lupin hulls, rice bran, soybean meal, and wheat bran were 84.7%, 90.5%, 90.4%, 77.4%, 74.6%, 89.5%, 90.4%, 74.4%, 86.9%, and 63.4% (standard error of the mean [SEM] = 5.3, p = 0.006), respectively. The respective SID values of Lys were 75.5%, 88.4%, 83.9%, 74.7%, 62.4%, 80.3%, 83.9%, 78.5%, 88.0%, and 71.2% (SEM = 3.3, p<0.001), and the SID values of Met were 83.6%, 88.7%, 89.4%, 85.7%, 78.3%, 88.9%, 89.4%, 85.3%, 91.1%, and 77.0% (SEM = 2.4, p<0.001), respectively. Conclusion: The ileal digestibility of protein and amino acids varies among the feed ingredients fed to pigs.

• Journal of Animal Science and Technology
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• 제59권10호
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• pp.23.1-23.11
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• 2017

Background: Although soybean meal (SBM) is excellent source of protein in diets for poultry, it is sometimes inaccessible, costly and fluctuates in supply. The SBM can partially be replaced by full-fat SBM, but the meals prepared from raw full-fat soybean contain antinutritional factors. To avoid the risk of antinutritional factors, heat treatment is always advisable, but either excessive or under heating the soybean could negatively affect the quality. However, the potential for further improvement of SBM by supplementing with microbial enzymes has been suggested by many researchers. The objective of this study was to evaluate the performance and ileal nutrient digestibility of birds fed on diets containing raw soybeans and supplemented with microbial protease. Methods: A $3{\times}2$ factorial, involving 3 levels of raw full-fat soybean (RFFS; 0, 45 or 75 g/kg of diet) and 2 levels of protease (0 or 15,000 PROT/kg) was used. The birds were raised in a climate-controlled room. A nitrogen-free diet was also offered to a reference group from day 19 to 24 to determine protein and amino acid flow at the terminal ileum and calculate the standardized ileal digestibility of nutrients. On days 10, 24 and 35, body weight and feed leftover were recorded to calculate the body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR). On day 24, samples of ileal digesta were collected at least from two birds per replicate. Results: When RFFS was increased from 0 to 75 g/kg of diet, the content of trypsin inhibitors was increased from 1747 to 10,193 trypsin inhibitors unit (TIU)/g of diets, and feed consumption of birds was also reduced (P < 0.05). Increasing RFFS level reduced the BWG from hatch 0 to 10 d (P < 0.01) and hatch to 24 d (P < 0.05). The BWG of birds from hatch to 35 was not significantly (P = 0.07) affected. Feed intake was also reduced (P < 0.05) during 0 to 35 d. However, protease supplementation improved (P < 0.05) the BWG and FCR during 0 to 24 d. Rising levels of RFFS increased the weight of pancreas (P < 0.001) and small intestine (P < 0.001) at day 24. Except for methionine, apparent and the corresponding standardized ileal digestibility of CP and AA were reduced (P < 0.01) by increasing levels of RFFS in diets. Conclusion: This study showed that some commercial SBM could be replaced by RFFS in broiler diets, without markedly compromising productivity. The AID and SID of CP and lysine were slightly improved by dietary supplementation of microbial protease.

• Asian Pacific Journal of Cancer Prevention
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• 제15권6호
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• pp.2675-2680
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• 2014

Background: To investigate differentiated thyroid cancer risk factors in natives of French Polynesia is of interest because of the very high incidence of this cancer in the archipelago. Materials and Methods: To assess the role of various potential risk factors of thyroid cancer in the natives of French Polynesia we performed a case-control study. The study included almost all the French Polynesians diagnosed with differentiated thyroid carcinoma between 1981 and 2003 (n=229) and 373 French Polynesian control individuals from the general population without cancer. Results: Thyroid radiation dose received from nuclear fallout before the age of 15, a personal history of neck or/and head medical irradiation, obesity, tallness, large number of children, an artificial menopause, a familial history of thyroid cancer, a low dietary iodine intake, and having a spring as the main source of drinking water were found to be significant risk factors. No roles of smoking habits, alcohol consumption, iodine containing drugs, and exposure to pesticides were evidenced. Conclusions: Except for smoking, differentiated thyroid carcinoma risk factors in natives of French Polynesia are similar to those in other populations. Our finding on the role of having a spring as a drinking water origin is coherent with some other studies and could be due to geological factors.

• 한국수산과학회지
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• 제31권2호
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• pp.149-159
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• 1998

매년 막대한 양이 폐기되어져 환경오염 문제를 유발시키는 굴껍질에 다량 함유되어 있는 칼슘 성분을 체내 칼슘 공급원으로 이용하기 위하여 굴껍질을 $1200^{\circ}C$로 소성 가공시켜 $98.6\%$의 수율로 산화칼슘을 만들었고, 이로부터 $CaCl_2$과 $CaHPO_4$ 등과 같은 칼슘화합물을 제조하였다. 여러 가지 효소로 가수분해시켜 얻은 어피 젤라틴 유래 펩티드를 굴껍질 유래 칼슘화합물들에 대한 칼슘 흡수 촉진제로 사용하였는데, in vitro 실험 결과 참치 유문 수 유래 조효소인 TPCCE를 사용하여 4시간 동안 가수분해시켜 얻은 어피 젤라틴 펩티드가 가장 뛰어난 $CaHPO_4$ 침전 저지 효과를 나타내었으며, 무첨가와 비교했을 때 $70\%$의 상승 효과를 나타내었다. 이상의 결과들을 바탕으로 칼슘을 결핍시킨 수컷 흰쥐(SD-Dawley male rats)를 이용하여 in vivo에서 칼슘 흡수 촉진 실험을 실시한 결과, 칼슘 흡수 촉진제로 어피 젤라틴 펩티드가 첨가된 굴껍질 유래 칼슘화합물을 섭취시킨 군들은 대조군에 비해 유의적으로 높은 칼슘 및 회분량을 나타내었으며, $1\%$보다는 $3\%$의 펩티드를 섭취시킨 군들이 좋은 것으로 나타났다. 또한 $CaCl_2$ 섭취군 보다는 $CaHPO_4$ 섭취군들에게서 더 뛰어난 촉진 효과를 볼 수 있었다. 또한 분으로의 칼슘 배출은 대조군의 약 $50\%$이하로 나타나는 것으로 보아 소장내 불용화 칼슘의 형성에 매우 뛰어난 효과를 갖는 것으로 나타났다.

• Journal of Nutrition and Health
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• 제13권4호
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• pp.187-194
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• 1980

To estimate the amount of daily salt intake by source of food and urinary sodium excretion, a dietary survey was conducted from August 27th to September 3, 1980. The salt concentration of six kinds of food was measured. The families of 25 womens' club leaders and 25 families of hypertensive patients were studied after they had been given a short course of education on lowsalt diet. The results were as follows: 1. The average amount of high-salt foods eaten daily by the study group were as follows: 4.5 Gm. in the form of table salt 16.8 ml of home-made soy sauce 6.20 ml of commercial soy sauce 11.9 Gm. of home-made red-pepper bean paste 12.0 Gm. of home-made soy-bean paste 120.7 Gm. of Kimchi 2. The average NaCl concentration of each food was as follows: 99.5% in table salt, 22.5% in home made soy sauce, 11.9% in Commercial soy sauce, 6.8 Gm% in home made red pepper bean paste, 9.2 Gm% in home-made soy-bean paste and the average concentration of various kinds of Kimchi was 2.7 Gm%. 3. The total amount of daily salt intake per adult was calculated as 14.3 Gm. By sources of food 4.5 Gm from table salt, 3.9 Gm from home-made soy sauce and 3. 3 Gm from Kimchi were taken daily Three other kinds of food were also minor sources of salt intake.4. The average amounts of individual daily salt intake were not significantly different between the hypertensive group and the normotensive group: the median of the normotensive group (11.7Gm.) was significantly lower than that of the hypertensive group (14.9Gm.). Therefore the womens' club leaders appeared to respond more quickly than the hypertensive group after low-salt diet education. 5. The average amount of sodium excretion in the 24 hour urine specimen was 234.7 mEq. From this finding the daily NaCl intake was estimated to be 15.8Gm.

• Journal of Nutrition and Health
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• 제24권4호
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• pp.314-325
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• 1991

식이지방의 수준에 따라 n6 와 n3 불포화지방산이 혈장 지질조성에 미치는 영향과 또 그 기전이 다른지를 연구하고자 Sprague Dawley 종 수컷쥐에게 저지방(LF, 10% Cal)식이와 고지방식이(HF, 40% Cal)를 각각 6주동안 투여하였으며, 사용된 기름은 포화지방산 급원으로는 쇠기름, n6 linoleic acid(LA) 급원으로 corn oil, n3 ${\alpha}-linolenic$ acid(LL) 급원으로 perilla oil, n3 eicosapentaenoic acid(EPA)와 docosahexaenoic acid(DHA) 급원으로 fish oil이었다. Ultracentrifugation 방법으로 VLDL fraction을 분리하여 thin layer chromatography에 의해서 화학적조성을 구하였다. Plasma cholestere 수준은 LF 와 HF 모두 n6 LA에 의해서는 오히려 증가되었고 n3 LL과 n3 EPA에 의해서는 감소되었으며, HF 에서 n3 EPA가 가장 cholesterol 저하효과가 있었다. HDL-Chol 농도는 n6 LA에 의해서 증가되었으나, HF 경우 n3 EPA에 의해서 유의성있게 감소되었다. Plasma TG 농도는 n3 EPA에 의해서 가장 감소되었고 간의 lipogenic enzyme 활성을 억제하였으며 VLDL fraction의 TG상대적양(%)이 유의성 있게 낮아졌다. 이때 LF 군에서는VLDL fraction의 apo-B의 상대적양(%)이 감소되지 않았으나 HF군에서 n3 EPA에 의해서 유의성 있게 낮았다. 그러므로 n3 EPA의 hvpotriglyceridemic effect는 간에서 lipogenesis를 억제하여 plasma VLDL로 TG 분비가 억제되었을 것이며, HF일 경우는 간에서 apo-B 생성도 억제되었다. 관상동맥성심장질환의 예방적 차원에서 평상시에도 쇠기름과 corn oil 보다는 n3 PUFA가 풍부한 들기름이나 생선을 더욱 이용하는 것이 바람직하다.

• Journal of Nutrition and Health
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• 제39권8호
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• pp.786-794
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• 2006

The purpose of this study was to establish an association between the consumption of ready-to-eat cereal (RTEC), milk, and calcium within the context of the most current population dietary practice in Korea. Inadequate calcium intake among Korean children and adults is one of the important public health concern. Milk is one of the best calcium sources because or its bioavailability, and RTEC is one or the foods commonly consumed with milk. The most recent Korean National Health and Nutrition Survey, 2001 dataset was used as the source of data for this research. Subjects excluding pregnant women, were categorized according to gender and age ($1{\sim}5,\;6{\sim}11,\;12{\sim}19,\;20{\sim}49,\;50+$ years) and then by consumption of RTEC and milk. SAS and SUDAAN were used for statistical analyses. Sample weighted means, standard errors, and population percentages were calculated, and multiple regression model with adjustment for covariates were used to determine the predictability of total daily calcium intake from inclusion of RTEC and milk compared to the meal without RTEC and milk. RTEC was consumed by 2.4% or Korean people. Average calcium intake was 17 times greater when RTEC was consumed with milk than when RTEC was consumed without milk. Respondents who consumed RTEC with milk had significantly higher mean daily calcium and other nutrient intakes than respondents who consumed neither. in the multiple regression analysis, milk consumption with or without RTEC predicted total daily calcium intake after adjusting for age, income, and alcohol consumption (p<0.0001). The percentage of respondents below the estimated average requirement (EAR) level for calcium was lower for RTEC consumers than for RTEC non-consumers in all age-gender groups, especially significant differences were in children aged $1{\sim}5$, boys and girls aged $12{\sim}19$, men aged $20{\sim}49$, and women older than 50 years of age. RTEC consumption was not associated with intake in excess of the tolerable upper intake level (UL) for calcium. In conclusion, RTEC consumption was positively associated with both milk and calcium intakes in all age and gender groups in Korean population.

• Journal of Nutrition and Health
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• 제45권1호
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• pp.57-63
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• 2012

This study investigated the relationship between total sugar intake and obesity indices in 362 female university students. This study was conducted using an anthropometric checkup and 3-day dietary records. Subjects were categorized according to the total sugar intake as < 33.3 g (group I, n = 90), 33.3-56.1 g (group II, n = 91), 56.1-83.8 g (group III, n = 91), ${\geq}$ 83.8 g (group IV, n = 90). No significant differences in age, weight, height, body mass index (BMI), or the percentage of body fat were observed among the four groups. Based on BMI, 20.2% were overweight, and the percentage of body fat was > 30% in 67.1% of all students sampled. Energy intake in each groups was 1,164.7 kcal, 1,488.6 kcal, 1,590.0 kcal, and 1795.8 kcal, respectively (p < 0.001). Total sugar intake in the groups was 20.5 g, 44.6 g, 68.3 g, and 111.8 g, respectively (p < 0.001). Carbonated beverages were identified as the most significant food source for total sugar intake in female university students. The next major foods were ice cream, milk, coffee, fruit, sugar, cookies, bread, chocolate, corn syrup, rice, onion, maple syrup, pickle, and sweet potato. As intake of total sugar increased, intake of energy also increased significantly. Mean daily intakes of fat and calcium/1,000 kcal were significantly higher in group IV than those in the other groups. Mean daily intakes of vitamin C and vitamin E/1,000 kcal were significantly higher in group III than those in the other groups. The percentage of subjects who consumed nutrients below the estimated average requirement was less in the higher total sugar intake group than that in the lower intake group. The obesity indices (weight, BMI, % body fat) were not associated with total sugar intake in the subjects. We conclude that total sugar intake does not seem to influence obesity indices in female university students.

• Journal of Nutrition and Health
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• 제45권2호
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• pp.150-158
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• 2012

This study was conducted to investigate the relationship between knowledge of nutrition labeling and the effect on eating habits with 300 high school boys in Seoul. The subjects were divided into an underweight (UW) group (BMI < $18.5kg/m^2$, n = 42), a normal weight (NW) group ($18.5kg/m^2\;{\leq}\;BMI\;<\;23kg/m^2$, n = 129) and an overweight (OW) group (BMI ${\geq}\;23kg/m^2$, n = 79) based on their body mass index (BMI). The average age of participants was 17.8 years old and their mean height and weight were 174.9 cm and 66.5 kg. The mean BMI of subjects was $21.7kg/m^2$ which fell within the normal range. Seventy six point four percent of subjects perceived nutrition labeling and they acquired the information pertaining to it through TV and internet. The UW group and the OW group obtained it from their parents, relatives and friends, while NW group acquired it from school. There were significant differences among groups in the acquired source of the information on nutrition labeling (p < 0.05). The NW group and the OW group trusted nutrition labeling more than the UW group, but there were no significant differences among them. Forty five point five percent of the UW group and 40.7% the NW group were satisfied with nutrition labeling education, while only 15.8% of the OW group did it. The OW group checked nutrition labeling more than the UW group and the NW group at the point of food purchase. The primary reason for examining nutrition labeling was 'to check nutrient contents' in the UW group and the NW group, while the OW group examined it to improve health including regulation of body weight. There were significant differences among groups with regards to the reason for examining nutrition labeling (p < 0.001). The OW group was aware that nutrition labeling affected their eating ha-bits significantly more than the other groups (p < 0.05). Therefore, application-centered education on nutrition labeling and the strong support of the government is needed in order to improve nutrition labeling use and to apply the information from nutrition labeling into student dietary life.

• Journal of Nutrition and Health
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• 제42권8호
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• pp.750-758
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• 2009

건강한 성인 남자 48명을 대상으로 각각 당근즙 섭취군과 ${\beta}$-carotene 섭취군, placebo 약 섭취군으로 나누어 8주동안 실시하였으며, 당근즙은 매일 300 mL을 주었고 정제된 항산화 비타민은 당근즙에 함유된 ${\beta}$-carotene과 같은 양을 주어 항산화 영양 상태에 대한 개선 효과를 비교하고자 하였다. 그 결과, 혈장 비타민 C, 비타민 E 및 ${\beta}$-carotene 함량은 당근즙 및 항산화 비타민 섭취 전보다 유의적으로 높게 나타났고, 그 증가 정도가 비슷하게 나타나 식품으로부터 항산화 영양소를 충분히 섭취하는 것이 흡연자의 산화적 손상과 관련된 질병을 예방하는 좋은 방법이 될 수 있을 것이라 사료된다.