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오메가-3와 -9 지방산의 혼합 급이가 계육내 오메가-3 계열 다가불포화지방산의 조성에 미치는 영향
신대근(Daekeun Shin),최성호(Seung Ho Choi),조영무(Young Moo Cho),박재홍(Jae Hong Park) 韓國家禽學會 2012 韓國家禽學會誌 Vol.39 No.1
To evaluate the effects of n-3 and n-9 fatty acid combination on broiler chicks, diets containing the combinations of five different fat sources including flaxseed oil, fish oil, EPA, DHA and olive oil were provided, and all chicks were processed at 4 weeks of growth. Liver, breast and thigh samples were collected and fatty acid composition and/or CIE L*, a* and b* measurement were measured. Also, live chick and liver weights were weighed and the ratio was provided as an evidence of fat accumulation in liver. No significant difference was determined in both live and liver weight ratio and liver color. EPA was low in FHO as compared to livers from others. In contrast, DHA was significantly high in FHO. In broiler breasts derived from FDO, AA and n-3 fatty acid content was high, but only numerical differences of EPA and DHA were determined in breasts from FDO. The thighs from FHO showed high in EPA, DHA and n-3 fatty acid content but had low in AA and n-6 to n-3 ratio. Therefore, the results indicate that broiler chicken diets containing either FDO or FHO may be possible combination diets increasing n-3 polyunsaturated fatty acids in broiler chicks.
에탄올로 발기부전을 유도한 흰쥐의 성기능 개선에 마카추출물이 미치는 영향
최혜란,이민정,이수정,박희전,송지영,김일수,신대근,Choi, Hye Ran,Lee, Min Jung,Lee, Su Jung,Park, Hee Jeon,Song, Ji-Young,Kim, Il Su,Shin, Daekeun 한국식품영양학회 2018 韓國食品營養學會誌 Vol.31 No.3
The purpose of this study was to examine the effects of Maca water and/or ethanol extract on the nitric oxide (NO) production in human umbilical vein endothelial cells HUVAC and on erectile dysfunction in rats. Maca was extracted due to both solutions, which are water and ethanol. Each Maca extract was applied to HUVAC, and NO production was checked. Additionally, three different dosages (250, 500 and 1,000 mg/kg) of Maca ethanol extract was administered to Sprague-Dawley rats for 4 weeks. All rats were sacrificed and each sample was collected for analysis. The control rats received only the saline vehicle. The NO production of HUVAC was significantly increased by domestic and homemade Maca water extracted at $60^{\circ}C$ group. Both NO generation and testosterone release were not influenced due to the oral administration of Maca. In the EtOH group rats, the number of sperm was reduced compared to that of the control group. All Maca groups had a high number of sperm and each sperm count had increased as a result of the Maca extract dose. The results of this research suggest that Maca has a positive effect on male erectile dysfunction, which need to be examined further in future studies.
동충하초 분말, 누에고치 분말 또는 Conjugated Linoleic Acid의 첨가가 산란 노계 회수단백질을 이용하여 제조한 Cremi의 품질에 미치는 영향
진상근(Sang-Keun Jin),허인철(In-Chul Hur),신대근(Daekeun Shin) 韓國家禽學會 2011 韓國家禽學會誌 Vol.38 No.3
To investigate the effects of Cordyceps ochraceostromat, silkworm cocoon and conjugated linoleic acid (CLA) addition on the quality of cremi during storage, this study was conducted. Cremis were prepared using a 20% spent layer breast recovered protein to replace Alaska pollack with the addition of 0.1% silkworm cocoon powder (T1), 0.05% silkworm cocoon powder + 0.05% Cordyceps ochraceostromat powder (T2), and 0.05% silkworm cocoon powder + 0.05% CLA. All manufactured cremis were vacuum-packaged, stored at 10±1℃ and finally evaluated for their quality on 0, 2, 4 and 6 weeks of storage. The pH, whiteness, gel strength and breaking force of cremis from T2 were higher than those of samples derived from either T1 or T3. However, cremis from T2 showed low shear force values when compared to other cremis (p<0.05). Therefore, the results indicate that cremis contained 0.05% silkworm cocoon powder and 0.05% Cordyceps ochraceostromat combination (T2) may be recommendable to induce customers to buy, thereby, it may be beneficial to both manufacturers and consumers in market.