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노정란(Jung Ran No),박선영(Sun Young Park),김미경(Mi Kyoung Kim),조한영(Han Young Jo),이인영(In Young Lee),이선영(Sun Yung Ly) 한국식품영양과학회 2007 한국식품영양과학회지 Vol.36 No.1
본 연구에서는 레반의 경구 투여가 혈중 지질 및 체내 칼슘대사에 미치는 영향을 검토하고자 0.1% 칼슘제한식이를 섭취하는 흰쥐를 대상으로 각각 식이무게의 2.5%와 5% 수준의 레반을 8주간 투여하면서 대사실험을 수행하였으며 그 결과는 다음과 같다. 체중 증가량은 대조군(C)에 비하여 5% 레반을 섭취한 군에서 감소하였으며 신장의 무게는 대조군에 비하여 레반 섭취군에서 유의적으로 높았으나 간무게는 차이가 없었다. 레반의 섭취는 맹장 내용물을 유의적으로 증가시켰으며 5% 레반 섭취시 맹장조직의 무게가 유의적으로 증가하였다. 혈장 triacylglycerol과 LDL-cholesterol은 대조군에 비하여 5% 레반 섭취군에서 유의적으로 감소하였으나 AI에는 차이가 없었다. 혈장 alkaline phosphatase (ALP)와 뇨중 hydroxyproline(HP) 배설량, 혈장 칼슘 농도, 체중에 대한 대퇴골 무게 비는 레반 섭취로 변화되지 않았다. 그러나 5% 레반 섭취군의 변 중 칼슘 배설량은 대조군에 비하여 유의적으로 적었으며 칼슘 흡수율은 높았다. 레반 섭취군의 뇨 칼슘 배설량과 칼슘 보유량(Ca retention)은 대조군과 차이가 없었다. 본 연구의 결과로 보아 수용성 식이섬유인 레반은 혈장 지질 개선효과와 칼슘 흡수율 증가 등의 유익한 생리적 특성을 보이므로 다이어트와 정장 기능성 소재로 뿐만 아니라 심순환계 질환의 예방과 골 대사 개선용 기능성식품 소재로의 활용도 가능할 것으로 보인다. Levan, the fructose polymer is an indigestible carbohydrate regularly consumed by humans. Its physiological functions, in terms of hypocholesterolemic effect and calcium metabolism, have not been well documented. The objective of this study was to investigate the effects of levan on blood lipids and the calcium absorption ratio in rats fed a 0.1% low calcium diet. Thirty rats were divided into three groups and fed a 0.1% low calcium diet (control) or low calcium diets containing either 2.5% levan or 5% levan for eight weeks. The blood lipid and biomarkers relevant to Ca metabolism (urinary Ca and hydroxyproline), the femoral weight and the Ca contents were determined. The body weight gains were lower in the 5% levan group than the control group. Plasma concentrations of triacylglycerol and LDL-cholesterol decreased in the 5% levan group, compared to the control group, but the atherogenic indice were not affected. Blood alkaline phosphatase activity, Ca and urinary hydroxyproline excretion levels were not different in the three groups. The net calcium absorption in rats fed a 5% levan diet was greater than rats fed the control diet, while the femoral weights and Ca contents were not significantly different in the three groups. We concluded that a 5% levan diet could both enhance the calcium absorption and improve the lipid profiles in rats fed a low calcium diet.
${\beta}$-Glucan 첨가 스폰지 케이크의 이화학적${\cdot}$관능적 특성
유정선,조경미,신유미,권오윤,김미경,조한영,김미리,Yu, Jeong-Sun,Jo, Gyung-Mi,Shin, Yu-Mi,Kwon, Oh-Yun,Kim, Mi-Kyoung,Jo, Han-Young,Kim, Mee-Ree 한국식품조리과학회 2007 한국식품조리과학회지 Vol.23 No.1
The study was conducted to evaluate the physicochemical and sensory characteristics of sponge cake with different amounts of ${\beta}$-glucan, 2%, 4% and 6%. Addition of ${\beta}$-glucan did not affect the texture property of batter in terms of springiness, cohesiveness, gumminess and hardness. The volume of the sponge cake was significantly decreased in only 6% ${\beta}$-glucan added group, compared to the control. The pH, height, weight and moisture content of the cake were not significantly different between the control and ${\beta}$-glucan added groups. Lightness and yellowness of the cake crust were the highest in the 4% ${\beta}$-glucan group, while redness was decreased with increasing ${\beta}$-glucan content. The color of the cake crumb was not significantly different between the control and ${\beta}$-glucan group, and nor were the texture properties and sensory quality of the sponge cake. These study results show that the addition of ${\beta}$-glucan up to 4% did not affect the quality of sponge cake.
${\beta}-Glucan$ 첨가 스폰지 케이크의 저장 중 품질 특성
조경미,신유미,유정선,권오윤,김미경,조한영,김미리,Jo, Gyung-Mi,Shin, Yu-Mi,Yu, Jeong-Sun,Kwon, Oh-Yun,Kim, Mi-Kyoung,Cho, Han-Young,Kim, Mee-Ree 동아시아식생활학회 2007 동아시아식생활학회지 Vol.17 No.1
The quality characteristics of sponge cake with added ${\beta}-glucan$(2, 4 and 6%) were evaluated. Rapid decreases in moisture content in the sponge cake were observed during storage($20^{\circ}C$, 70% relative humidity) in control and 2% ${\beta}-glucan$ cakes by day 3 of storage, while the moisture content in the 4% and 6% ${\beta}-glucan-added$ sponge cake slowly decreased until day 12 of storage. During storage, hardness was much lower in groups with added ${\beta}-glucan$ than in control. On day 1 L, a and b values of both crust and crumb of sponge cake with added ${\beta}-glucan$ were not significantly different from control, although the a and b values decreased significantly with storage days. Sensory test revealed that the scores for over-all acceptability were much higher in sponge cake with added ${\beta}-glucan$, and the same results were obtained on day 5. Based on these results, ${\beta}-glucan$ addition maintained moisture content and had an overall good effect on sponge cake.