• Preventive Nutrition and Food Science
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• 제11권1호
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• pp.48-53
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• 2006

Although garlic has been reported to have impressive effects in lowering serum lipids, there have been controversial evaluations on these effects. To find the potential fator causing the inconsistency in the previous studies, we examined the effects of two types of garlic according to the producing-area (hangihyung garlic, nangihyung garlic) on serum lipid profiles and leptin level. Thirthy six of 4 wk old Sprague Dawley male rats fed high fat diet (40% of calories as fat) for 6 wks to induce obesity, and subsequently fed 5% garlic powder supplemented (HF+H: hangihyung garlic powder, HF+N: nangihyung garlic powder) high fat diets (w/w) for further 5 wk. For the comparison, normal control group fed AIN-76A diet (11.7% of calories as fat). Supplementation with hangihyung and nangihyung garlic resulted in a significant reduction of high fat induced body weight gain, white fat (i.e., epididymal, visceral and peritoneal fat) development, adipocyte hypertrophy and the development of hyperinsulinemia and hyperliptinemia. Serum triglyceride and total cholesterol level was greatly reduced by hangihyung garlic supplementation (p<0.05). The HDL-cholesterol level was increased by dietary hangihyung and nangihyung garlic. There were slight non-significant decreases in triglyceride and total cholesterol of HF+N group as compared to those of HF group. Leptin level of HF+H group was found to be significantly lower than HF group (p<0.05). There was no significant difference among N group and HF+N group. These results suggest that hangihyung garlic may lead to the higher activity in improving lipid profiles than nangihyung garlic. Whether the hypolipidemic effect of garlic increases in a species-dependent has yet to be determined and awaits further research.

• 한국식품조리과학회지
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• 제14권5호
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• pp.553-559
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• 1998

Influence of garlic on the quality characteristics of apple jam was investigated. Apple jams with various amounts of sugar and garlic were prepared, and their sweetness, color difference, and instrumental texture were evaluated. The results were as follows: 1. When equal amount of sugar was added, the sweetness of apple jam decreased as the garlic content increased. 2. As the garlic content increased, the lightness and yellowness tended to be high and the redness and ΔE tended to be low, resulting that the color of apple jam was improved. 3. As the sugar content increased, the hardness and adhesiveness of the jam tended to increase when garlic was added at 10%. 4. Apple jam with 60% sugar and 10% garlic was the best in adhesiveness, glossiness, and overall quality by sensory evaluation. As the addition of garlic did not cause any significant difference in flavor, cooked garlic could be applied in apple jams.

• 한국응용과학기술학회지
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• 제9권1호
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• pp.73-79
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• 1992

To study effects of wild garlic on components of lipid and protein, blood glucose level, and cholinesterase activity in rat's serum, Sprague-Dawley strain of 40 male rats are divided into 5 groups which are Normal, Control, A, B, and C group. Normal group is fed only Basal diet, and Control group is fed Basal diet and 0.5ml/day of 2.5% cholesterol solution, In addition to a diet of control group, A group is fed 25% wild garlic flour, B group 0.5ml/2day of concentratded wild garlic juice, C group 0.5ml/2day of concentrated ethanol extract of wild garlic, After 8 weesk the rats were fasted for 12 hours, and then decapitated to collect blood. The results of analysis of the rat's serum were summarized as follows, 1. Wild garlic diet, specially ethanol extract has an influence on decreasing the level of total cholesterol and blood glucose in rat's serum, 2. HDL-cholesterol and phospholipid content of rat's serum are increased by wild garlic diet. Therefore I think that wild garlic is good food for preventing development of atherosclerosis and diabetes.

• 한국식품영양과학회지
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• 제28권6호
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• pp.1339-1348
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• 1999

In present study possible hypolipidemic effects of garlic were investigated in an experimental model which consisted of 4 groups of Wistar rats(three weeks old): CO group received a basal diet(as a standard diet) contained 6.3% of corn oil. LO group was taken the experimental diet in which only 6.3% corn oil in basal diet was substituted by 12.6% of lard oil. So the experimental diet was somewhat high saturated fat diet. LG1 group was treated orally with garlic juice as 1% of raw garlic in the diet together with the same diet as the diet for LO group. LG2 group was taken 2% of garlic under the same dietary condition as that of LG1 group. The rat body weights prior and posterior to the experimental period were measured and the amount of the experimental dietary intake was determined at every 3 day interval. After the experimental dietary period of 30 days the blood obtained from all the sacrificed rats were analyzed for the biochemical parameters. Over the one month period of experiment there was no abnormality or apparent change in appearance and activity or diet consumption in all experimental rat groups. LO group fed a diet rich in lard showed significantly increased body weight gain rate by 30% and also elevated levels of triglyceride, total cholesterol and LDL cholesterol by 29.9%, 27.4% and 62.3% respectively and no significant difference in the levels of HDL cholesterol, GOT, GPT, blood glucose and blood urea nitrogen as compared to those of control group. So it seemed that the high calorie diet in LO group mainly contributed to the significant increase in body weight gain rate and other biochemical parameters. In spite of 1% garlic treatment LG1 group had significantly increased body weight gain rate by 25.2%, levels of triglyceride, total choesterol and LDL cholesterol by 25.2%, 24.6% and 50.5% respectively as compared to control and LO group, and no increase in the levels of HDL cholesterol, blood glucose and blood urea nitrogen. At garlic 1% diet there was no hypolipidemic efficacy in rat serum. Under the treatment with garlic 2% in diet LG2 group showed significantly increased body weight gain rate by 19.7% as compared to control and elevated levels of GOT, GPT and BUN by 85.8~96.4%, 127~148% and 88% respectively as compared to control, but LG2 group had significantly reduced levels of triglyceride, total cholesterol and LDL cholesterol as compared to LOand LG1 group. In present study there were no significant change in HDL cholesterol and blood glucose value. In LG2 group GOT, GPT and blood urea nitrogen values were slightly increased presumably due to the inhibiting effects of garlic on the hepatic or renal function of rats. Nevertheless in this study garlic may have some demonstrable hypolipidemic effects in rat.

• Nutrition Research and Practice
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• 제15권6호
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• pp.773-788
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• 2021

BACKGROUND/OBJECTIVES: Due to the rapid increase of global cancer incidence and mortality and a high level of interest in cancer prevention, a systematic review of garlic intake and cancer risk is needed. SUBJECTS/METHODS: We implemented a systematic review to examine the effects of varying levels of garlic intake on cancer. We conducted comprehensive literature searches in three electronic databases (MEDLINE, Embase, and Web of Science) for studies published between database inception and July or September of 2018. Two investigators independently screened abstracts and full-texts, extracted data, and assessed risk of bias (RoB). A total of one medium-quality randomized controlled trial (RCT) and 13 cohort studies graded as high RoB were included. RESULTS: The 1-year follow-up results from a RCT showed that a significant decrease in the number and size of colorectal adenomas among participants with colorectal adenomas who received high-dose aged garlic extract (AGE) compared with those who received low-dose AGE (P < 0.05). The results of prospective observational studies provided inconsistent associations of colorectal cancer risk with garlic supplements and garlic intake as food. CONCLUSIONS: In summary, the AGE was effective in reducing the number and magnitude of colorectal adenomas in one RCT, but there were inconsistent associations between garlic intake and colorectal cancer in cohort studies. Therefore, we could not draw a firm conclusion regarding the effects of garlic on cancer, because the current strength of evidence is inadequate due to a lack of number of high-quality RCTs.

• 한국식품영양과학회지
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• 제26권1호
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• pp.103-108
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• 1997

본 실험에서는 사람의 본태성 고혈압과 가장 유사 한 증상을 나타내는 SHR을 이용하여 고혈압의 악성기에 해당하는 6개월간의 장기간 동안 생마늘과 익힌 마늘 첨가식이를 급여함으로써 마늘의 열처리가 혈청 지질과 혈액 응고에 미치는 효과를 비교 관찰하였다. 실험 결과를 요약하면 다음과 같다. 식이 섭취량은 익힌 마늘 3% 첨가군이 다소 낮았으며, 체중 증가량 및 식이 효율은 마늘 첨가군과 대조군간이 차이는 없었다. 총 콜레스테롤 수준은 마늘 첨가군이 대조군에 비해 현저히 저하되었으며, 특히 익힌 마늘군이 생마늘 군 보다 낮게 나타났다. 중성 지질 수준은 마늘 첨가군 들이 대조군에 비해 낮았다. 혈장 prothrombin time은 마늘 첨가군들이 대조군 보다 길었으며, 마늘 열처리에 따른 차이는 없었다. Fibrinogen 농도는 익힌 마늘군이 대조군이나 생마늘군 보다 낮았다. Fibrinogen과 pro- thrombin time은 유의한 부의 상관관계를 나타내었다. 이상을 종합하여 살펴보면, 익힌 마늘 3%와 생마늘 3% 첨가군 모두 체중이나 식이 섭취량 및 식이 효율에서 대조군과 큰 차이가 나타나지 않은 것으로 보아 일상 식이 섭취 수준으로서 섭취할 수 있는 농도로 여겨진 다. 열처리 효과를 비교해 보면, 익힌 마늘의 생리 효과가 생마늘에 비해 낮다고 보고된 타 연구 결과와는 달리 , 본 실험에서는 익힌 마늘과 생마늘의 효과가 유사 한 것으로 나타났다.

• Journal of Biosystems Engineering
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• 제26권2호
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• pp.131-140
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• 2001

This study was conducted to develop a garlic separator which could to reduce the labor in preparation of seeding. After consideration of the design criteria of a garlic separator such as no additional conveying device, simple construction and operation, enhancement of separating efficiency, reduction of damage, degree a rotating corn type garlic separator was designed. The effects of design parameters such as height and angle of the inner and outer corns, rotating speed of inner corn on the separating performance of the prototype were estimated. In performance was compared with manual work. The results are summarized as follows. 1. Garlic bulbs were separated by a spiral movement in the gap between inner rotating corn and outer fixed corn. At constant feed rate of garlic bulbs, the capacity of garlic separation increased with increase of rotating speed of inner corn. Especially, the capacity was very high at the rotating speeds of 300 and 400rpm. 2. The damage degree of separated garlics increased with rotating speed of corn within 10%. Above 300rpm, separability of Uisung garlic was about 100% and incomplete separation of Namdo garlic was within 2%. 3. The capacity of prototype garlic separator developed in this study was 30 times as large as that of human being.

• 한국지역사회생활과학회지
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• 제20권2호
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• pp.239-246
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• 2009

The principal object of this study was to assess the effects of garlic powder(2 % and 4 %) on the sponge cake made with medium and cake flour. After making sponge cakes with garlic powder, water activity, softness, color of crumb, and sensory test were tested. Water activity(Aw) of the sponge cakes with different quantity of garlic powder were increased during 7 days storage. These meant that garlic powder had absorption effect. The Max G and springiness of the sponge cakes with garlic powder were all lower than that of the control. With regard to the color of the sponge cakes, the L values were reduced, but the a and b values were increased with the increment of percent of garlic powder. The micrographs of the sponge cakes with garlic powder evidenced slightly lower porosity than the control. And, the results of sensory test showed that the increment of the addition of garlic powder had low scores. But we know the possibility to make the sponge cakes using garlic powder. And the sponge cakes with medium flour using 2% of garlic powder had better evaluation than others using garlic powder.

• 생명과학회지
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• 제21권2호
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• pp.211-220
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• 2011

고지방식이로 유도된 비만흰쥐에 15 brix의 홍마늘 열수추출물을 1%, 3%, 5% 및 7%로 식이 중에 혼합급이하여 체내 지질 함량 및 항비만 효과를 측정하였다. 비만지수와 체지방량은 3% 이상의 홍마늘 추출물의 급이시대조군에 비해 유의적으로 감소되었으나, 내장 지방 및 부고환 주변 지방 함량은 홍마늘 추출물의 급이에 따른 유의차가 없었다. 혈청 중의 총 지질 및 중성지방은 추출물의 첨가량이 증가됨에 따라 유의적으로 감소하였으며, 동맥경화지수와 심혈관질환 위험지수도 감소되었다. ALT 및 AST 활성은 홍마늘 추출물 급이시 대조군에 비해감소되었다. 간 조직 중 총 지질 함량은 5-7%의 홍마늘 추출물 급이군에서 유의적으로 감소되었으며, 홍마늘 추출물의 5% 이상 급이시 분변 중에 총 콜레스테롤 및 중성지방의 배설이 증가되었다. 혈청 중 지질 과산화물 함량은 5-7%의 홍마늘 추출물 급이군에서 유의적으로 감소되었으며, 항산화 활성은 7% 급이군에서 유의적으로 상승되었다. 따라서 홍마늘 추출물은 분변으로 콜레스테롤 및 중성지방의 배출을 증가시킴으로써 체내 지질 저하 및 항비만 효과를 내는 것으로 사료된다.

• 대한수의학회지
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• 제34권3호
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• pp.635-645
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• 1994

The environmental pollution by heavy metals has become a significant hygenic problem. Recently it is said the garlic supplementation in diet have protective effect on the heavy metal accumulation in tissue of rat by a researcher. In this study two experiments were undertaken. Firstly, dogs were fed diet supplemented with cadmium of cadmium plus 7% of raw garlic for 50 days. on the 50th day of experiment all dogs were euthanasied and the cadmium content of various tissue were measured by atomic absorption spectrophotometeric method. Secondly, in order to find out the toxic effect of garlic dogs were fed diet supplemented with 7% of raw garlic for 50 days and hematological or hematochemical observations were undertaken at 10 day intervals. The results obtained from these experiments were summarized as follows; 1. In dogs treated with cadmium and cadmium plus garlic cadmium was accumulated in renal cortex, liver, and muscle. However the concentrations of cadmium showed no significant between the two group. 2. In dogs fed diets supplemented with 7% of raw garlic significant decrease of erythrocyte count, packed cell volume and hemoglobin content and significant increase of Heinz body erythrocyte and reticulocyte count were recognized. 3. The garlic-treated dogs and control dogs had normal asparate aminotransferase, alanine aminotransferase, alkaline phosphotase, blood urea nitrogen value. The value showed no significant difference between the two group. 4. From these results it may be concluded that the garlic have protective effect for cadmium accmulation in tissue and excess garlic in diet could induce hemolytic anemia in dogs.