• 한국식품과학회지
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• 제41권3호
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• pp.307-312
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• 2009

체중이 정상이면서 체지방률 함량이 30% 이상인 여성을 대상으로 CLA 보충과 운동 여부가 체지방함량과 체중 및 혈당, 혈중 지질 농도에 미치는 영향에 대하여 살펴 본 결과는 다음과 같다. 실험 대상자들의 평균 연령은 22세였으며, 실험이 진행되는 동안 대상자들은 식이 조절을 하지 않았다. 실험 대상자들의 실험 후 체중과 BMI, 체지방 함량의 변화를 살펴본 결과, CLA-운동군이 placebo-비운동군에 비해 체중과 BMI가 유의적으로 작았으며, 체지방 함량도 적은 것으로 나타났다. 또한, 복부지방을 나타내는 허리둘레도 CLA-운동군이 placebo-비운동군과 비교하여 유의적으로 감소하여 CLA를 섭취하고 운동을 하는 것이 운동을 하거나, CLA만 섭취하는 것보다 체중 조절에 더 효과적인 것으로 나타났다. 대상자들의 평균 공복혈당, TG, total cholesterol, LDL-C, HDL-C은 모두 정상 범위에 속하였고, CLA를 섭취하거나 운동을 하는 경우 혈중 HDL-콜레스테롤의 함량을 증가시키는 것으로 나타났으나, CLA와 운동을 병행하는 경우 상승효과를 보이지는 않았다. 이러한 결과, CLA를 보충함으로써 체중 조절을 하는 것보다는 CLA와 운동을 함께 병행하는 것이 체중 조절에 효과적이며, 혈중 지질 농도를 개선시킬 수 있을 것으로 사료된다.

• Asian-Australasian Journal of Animal Sciences
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• 제20권9호
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• pp.1417-1423
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• 2007

The present study was conducted to investigate the supplementation effects of $C_{18:2}$ rich-soybean oil or $C_{18:3}$ rich-perilla oil (7% of total diet, DM basis) for 12 weeks on plasma metabolites, fatty acid profile, in vitro lipogenesis, and activities of LPL and FAS in adipose tissue of sheep. The treatments were basal diet (Control), $C_{18:2}$ rich-soybean oil supplemented diet (SO-D) and $C_{18:3}$ rich-perilla oil supplemented diet (PO-D). All the sheep were fed the diets consisting of roughage to concentrate in the ratio of 40:60 (DM basis). Oil supplemented diets (SO-D and PO-D) slightly increased contents of triglyceride (TG) and total cholesterol (TC), proportions of both cis-9 trans-11 and trans-10 cis-12 CLA and TVA, but lowered (p<0.01) those of $C_{18:0}$ compared to the control diet. No differences were observed in the contents of TG and TC and proportions of fatty acids in plasma between supplemented oils. Oil supplemented diets slightly increased the proportions of cis-9 trans-11 and trans-10 cis-12 types of CLA in subcutaneous adipose tissue of sheep compared to the control diet. The rate of lipogenesis with acetate was higher (p<0.01) for intermuscular- and subcutaneous adipose tissues than that for intramuscular adipose tissue, while that with glucose did not differ among fat locations in sheep fed SO-D. No differences were observed in the rate of lipogenesis between substrates in all fat locations. The rates of lipogenesis with glucose increased only in the intermuscular- (p<0.01) and subcutaneous adipose tissue (p<0.005) compared to those with acetate. The rates of lipogenesis with acetate were the highest in the intermuscular and intramuscular adipose tissue of the sheep fed PO-D. Oil supplemented diets slightly increased the rate of lipogenesis with glucose for all fat locations. Supplementation of oils to the diet numerically increased the fatty acid synthase activity but did not affect the lipoprotein lipase activity in subcutaneous adipose tissue.

• Asian-Australasian Journal of Animal Sciences
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• 제22권11호
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• pp.1504-1512
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• 2009

A feeding trial was conducted to examine the effect of high-temperature-micro-time (HTMT) processing of diets containing extruded soybean (ESB) in high quantity on milk fat production, metabolic responses, and the formation of conjugated linoleic acid (CLA) and trans-vaccenic acid (TVA). Twenty-one multiparous Holstein cows in mid-lactation were blocked according to milk yield in the previous lactation. Cows within each block were randomly assigned to either normal concentrate or HTMT treated diets containing ESB (7.5% HTMT-ESB and 15% HTMT-ESB). It was hypothesized that the HTMT-ESB would affect the undegradable fatty acids in the rumen and, thus, would modify the fatty acid profile of milk fat. Both 7.5% and 15% HTMT-ESB did not affect milk yield, fat, protein, lactose and solid-not-fat (SNF), but the proportion of cis-9, trans-11 CLA in milk fat was significantly increased by these treatments. Content of TVA in milk fat was not affected by HTMT-ESB. The HTMT-ESB influenced the fatty acid profile in milk fat, but there was little difference between 7.5% and 15% of supplementation. HTMT-ESB feeding significantly decreased the concentration of plasma insulin and glucose, while plasma growth hormone (GH), triglyceride (TG), non-esterified fatty acid (NEFA) and HDLcholesterol were increased by 7.5% and 15% ESB-HTMT supplementation in comparison to the control group (p<0.05). However, no significant difference was observed in plasma LDL-cholesterol, insulin like growth factor (IGF)-1, T3, T4, and leptin concentrations among treatments (p>0.05). The present results showed that cis-9, trans-11 CLA production was increased by HTMT treatment of dietary ESB without reduction of milk fat, and the unchanged milk fat and yield was assumed to be associated with the constant level of thyroid hormones, leptin, and IGF-1.