Journal of the Korean Society of Food Science and Nutrition
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v.46
no.9
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pp.1035-1044
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2017
This study was carried out to investigate the effects of freeze-dried garlic powder (FDGP) on the lipid metabolism in rats fed a high fat-cholesterol (HFC) diet for 4 weeks to induce hyperlipidemia. The rats were divided into the following four experimental groups: normal diet group (NC), HFC diet group (HFC), HFC+FDGP 5 mg/100 g body weight (BW) group (FGT-1), and HFC+FDGP 15 mg/100 g BW group (FGT-2). Body weight gains and food efficiency ratios were significantly lower in the FGT groups compared to the HFC group, and the food intake was not significantly different in all experimental groups. Serum total lipid, triglyceride, and total cholesterol levels were significantly lower in the FGT groups compared to the HFC group. Total lipid content of the FGT-2 group was reduced by about 9% and 12% compared to the FGT-1 group and HFC group, respectively. The FGT groups also showed about 10% reductions low density lipoprotein (LDL)-cholesterol, atherogenic index (AI), and cardiac risk factor (CRF) compared to the HFC group. Liver function index (alkaline phosphatase, aspartate aminotransferase, and alanine aminotransferase) and lipid components were significantly lower in the FGT groups compared to the HFC group. Thiobarbituric acid reactive substances content of serum and liver tissue was reduced in the FGT groups compared to the HFC group, and was lower in the FGT-2 group compared to the FGT-1 group in serum. Antioxidant activities in serum and liver tissue were in the order of FGT-2> FGT-1> HFC group, significantly. In conclusion, FDGP effectively reduced the lipid components of serum and liver tissue. Feeding FDGP did not increase high density lipoprotein-cholesterol, but reduced LDL-cholesterol content, AI and CRF, especially. This shows that FDGP, will be effective in preventing and improving cardiovascular diseases such as arteriosclerosis and hyperlipidemia.
Journal of the Korean Society of Food Science and Nutrition
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v.41
no.1
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pp.49-56
/
2012
This study examined the effects of baked garlic powder on the lipid metabolism in rats fed a high-fat/highcholesterol diet for 4 weeks to induce hyperlipidemia. Male Sprague-Dawley rats were assigned to four groups according to the dietary fat, cholesterol and baked garlic powder levels. The experimental groups were normal diet group (N), a high-fat/high-cholesterol diet group (C), a high-fat/high-cholesterol diet with 1.5% baked garlic powder group (GPL) and a high-fat/high-cholesterol diet with 3% baked garlic powder group (GPH). The body weight gain, food intake and food efficiency ratio were similar in the experimental groups. The epididymal adipose tissues weight of the C group was higher than that of the N group, whereas those of the groups fed baked garlic powder were decreased gradually. The ALT and ALP activities were similar in the C groups, but the serum AST and LDH activities elevated by a high-fat/high-cholesterol diet were decreased significantly by feeding a 3% baked garlic powder diet. The serum triglyceride, total cholesterol and LDL-cholesterol levels as well as the atherogenic index and cardiac risk factor tended to decrease in the groups fed baked garlic powder than the C group, whereas the serum HDL-cholesterol level was lower in the C group and remarkably in groups fed baked garlic powder than the control group. The total cholesterol level in the liver and mesenteric adipose tissue and the triglyceride level in epididymal tissue were lower in the groups fed baked garlic powder than the C group. These results suggest that baked garlic powder reduces the serum lipid components and improves the lipid metabolism in hyperlipidemic rats induced with a high-fat/high-cholesterol diet.
Journal of the Korean Society of Food Science and Nutrition
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v.37
no.10
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pp.1369-1374
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2008
This study investigated proximate compositions and quality characteristics of wet noodles with the addition of freeze dried garlic powders prepared at 0.5, 1.0, 2.0, and 4.0% based on flour source, respectively. The moisture, crude protein, crude fat, nitrogen free extract, crude fiber, and crude ash of the freeze dried garlic powder were $4.72{\pm}0.14%,\;19.46{\pm}0.28%,\;1.21{\pm}0.10%,\;68.45{\pm}2.06%,\;2.38{\pm}0.05%,\;and\;3.78{\pm}0.06%$, respectively. The cooked weight, volume, water absorption of cooked noodles were decreased, but the turbidity of soup was increased with the addition of garlic powder. Increased of L (lightness), a (redness) and b (yellowness) values were caused as the amount of garlic powder increased in dough. Decrease of L value and increase of a and b value were shown with the increase of garlic powder in cooked noodle. The cooked noodles with garlic powder were significantly lower in hardness, adhesiveness, springiness chewiness, gumminess and cohesiveness than those of 100% wheat noodle. Sensory evaluation indicated that cooked noodles with 0.5% garlic powder was not significantly different from the control.
Journal of the Korea Academia-Industrial cooperation Society
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v.4
no.3
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pp.279-283
/
2003
This study was carried out to establish the manufacturing formulation of tea-bag type garlic tea. In order to eliminate of garlic-specific odor and taste, the masking effect of various additives against garlic flavor was determined with sensory evaluation. Leaves of green tea, arrowroot and Solomon's seal were screened as highly effective auxiliary ingredients in garlic tea. When two materials among the selected three auxiliary materials were mixed the same percentage, overall flavor of garlic tea synergistically was enhanced. The optimum concentration of garlic powder and stevioside as a sweetener were 20∼30% and 1%, respectively. Therefore, three types formulation of garlic tea was establish. When the color, turbidity and total solid concentration of three formulated garlic teas were compared with those of commercially available formulated green tea containing unpolished rice, the latter was more yellowish color and the former was more superior to turbidity and total solid concentration.
Kim, Ra-Jeong;Lee, Soo-Jung;Kim, Mi-Joo;Hwang, Cho-Rong;Kang, Jae-Ran;Jung, Woo-Jae;Sung, Nak-Ju
Journal of agriculture & life science
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v.44
no.6
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pp.159-170
/
2010
This study was aimed to evaluate the effects garlic such as fresh garlic powder (FGP), red garlic powder (RGP) and black garlic powder (BGP) by lyophilized, on serum lipid metabolism in obese rats induced high fat diet. Food efficiency ratio (FER) of the experimental groups was lower than the control group and it was significant difference. Total lipid content of serum decreased from 7.0 to 20.9% compared to the control group. Especially, triglyceride content decreased from 40.8% (BGP) to 42.1% (RGP) group as compared to the control group. There was no significant difference in HDL-C content between groups fed garlic powder and normal group. LDL-C contents of the experimental groups were lower than the control group, but has not showed significant diggerence compared to control group. Total lipid content was significantly increased in liver compared to the control group, but decreased over 30% in RGP and BGP groups to the control group. The lipid level in feces was increased by feeding periods of garlic powder, while total cholesterol and triglyceride were significantly increased in feces of RGP group. TBARS content in serum and liver of RGP and BGP groups was significantly decreased than the control group. Antioxidant activity of serum was 68.05% in the RGP group, which was significantly higher than the control group. From the above result, we suggested that red and black garlic powder were effective in the improvement of lipid level in obese rats induced high fat diet.
Kang, Min-Jung;Shin, Jeong Yeon;Lee, Soo Jung;Shin, Jung Hye
Journal of Life Science
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v.31
no.1
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pp.37-46
/
2021
The effects of freeze-dried powder from fresh and black garlic hot water extracts on the lipid metabolism in Sprague-Dawley rats fed a high-cholesterol diet were analyzed. The experimental group was classified into the normal group (NG), the high-fat (HF) and high-cholesterol diet group (CG), the HFC and 1% fresh garlic hot water extract powder-added diet group (FGEG), and the HFC and 1% black garlic hot water extract powder-added diet group (BGEG), respectively. The serum total lipid content was 381.52±7.30 mg/ml and 368.80±4.40 mg/ml in the FGEG and the BGEG, respectively, and was significantly lower than that of the CG. The total cholesterol and triglyceride contents of the FGEG and BGEG were also significantly lower than that of the CG. The high-density lipoprotein (HDL) cholesterol was significantly higher, and the low-density lipoprotein (LDL) and the very low-density lipoprotein (VLDL) cholesterol content was lower in the FGEG and BGEG than in the CG. The serum ALT and AST activities were significantly lower than those of the CG, and especially the BGEG was lower. The total cholesterol content and the triglyceride levels of the liver tissue were 36.0% and 14.3% lower in the BGEG than in the CG, respectively. The thiobarbituric acid reactive substance (TBARS) concentrations in the serum and the liver tissue were higher in the CG than in the FGEG and BGEG, but there was no difference between them. Based on these results, garlic extract powders significantly reduced the lipid profile and increased the antioxidant activity in rats in vivo. The black garlic hot water extract powder was more effective than raw garlic because of the total number of phenolic compounds and browning substances in the black garlic.
To develop a burnt beef flavor by reaction flavor technology, hydrolyzed vegetable protein (HVP) was reacted with precursors. Ribose, cysteine, furaneol, thiamin, methionine, garlic powder, and phospholipid were selected as suitable precursors for producing a burnt beef flavor. HVP and the selected precursors were reacted in a high pressure reactor to optimize reaction parameters, such as temperature, time, and water content. Optimum reaction conditions were $130^{\circ}C$, 1 hr, and 7.5% water addition. A burnt beef flavor was generated without pH adjustment. On the basis of an omission test, cysteine, furaneol, thiamin, and garlic powder were evaluated for optimization using response surface methodology. The optimum composition of precursore was determined to be 7.7% cysteine, 7.3% furaneol, 2.1% thiamin, and 6.9% garlic powder. Based on these results, optimum reaction conditions for the production of a burnt beef flavor from HVP were 5% ribose, 5% methionine, 5% phospholipid, 7.7% cysteine, 7.3% furaneol, 2.1% thiamin, 6.9% garlic powder, 7.5% water addition, $130^{\circ}C$ reaction temperature, and 1hr reaction time.
Journal of the Korean Society of Food Science and Nutrition
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v.38
no.9
/
pp.1222-1228
/
2009
This study was performed to investigate the quality characteristics of the sponge cakes with black garlic powder added such as cake batters, pH, height, specific volume, moisture contents, texture, color and sensory acceptability. Specific gravity of cake batters was increased as black garlic powder increased. Moisture contents, pH, height and specific volume of cakes were decreased as black garlic powder increased. In color of cake's crumb, lightness (L) and yellowness (b) was decreased as the black garlic powder increased, while redness (a) increased. Hardness, gumminess and chewiness was increased with the black garlic powder while springiness decreased in texture of the cakes. In sensory evaluation, flavor and taste of the cake was better than others when the 6% black garlic powder was added while overall acceptability was the highest when 4% black garlic powder was added.
Journal of the Korean Society of Food Science and Nutrition
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v.36
no.3
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pp.332-341
/
2007
The purpose of this study was to investigate the change of flavor compounds of freeze-dried garlic and garlic roasted with soybean oil and sesame oil. Freeze-dried garlic and ground raw garlic roasted with oils was prepared at $180^{\circ}C$ for 5 minutes. Volatile compounds of garlic samples were obtained by Likens-Nickerson distillation/solvent extraction and identified by GC and GC/MS. Sulfur compounds, methyl allyl sulfide, diallyl sulfide, methyl allyl disulfide, dimethyl trisulfide, diallyl disulfide, methyl allyl trisulfide and diallyl trisulfide were the major volatile in garlic flavor which was more than 98% of the total volatile compounds. The total amount of sulfur compounds in freeze-dried garlic roasted with soybean oil was decreased to 20% compare to that of garlic flavor; however, 10 pyrazines such as 2-methyl pyrazine, 2,6-dimethyl pyrazine, 2-ethyl-5-methyl pyrazin and 3-ethyl-2,5-dimethyl pyrazine which were not originated from both freeze-dried garlic and soybean oil were identified. They might be generated from thermal interactions of sugars and nonvolatile flavor precursors of garlic. In freeze-dried garlic roasted with sesame oil, the amount of diallyl sulfide, methyl allyl disulfide, dimethyl trisulfide increased whereas diallyl disulfide completely disappeared. The amount of two cyclic compounds 3,4-dihydro-3-vinyl-1,2-dithiin and 2-vinyl-4H-1,3-dithiin, which were artifacts from allicin, increased in roasted garlic with sesame oil.
Journal of the Korean Society of Food Science and Nutrition
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v.42
no.11
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pp.1857-1863
/
2013
Bulgogi sauces containing electron beam-irradiated garlic powder (1%, 3%, and 5%) were used to compare their irradiation status before and after pasteurization ($85^{\circ}C$, 30 min), using a thermoluminescence (TL) analysis by two different laboratories. The sauces with non-irradiated ingredient only provided a background TL glow curve with a maximum peak after $300^{\circ}C$. However, the presence of irradiated ingredient (1 and 10 kGy) was evident through the typical TL glow curves in a temperature range of 150 to $250^{\circ}C$. The concentration of irradiated ingredients showed a greater impact on identification characteristics than their radiation doses. TL ratios ($TL_1/TL_2$) were not able to confirm the results showing evidence of irradiation through the TL glow curve shapes. Pasteurization showed a negligible effect on the key identification parameters and did not change the shape or temperature range of radiation-specific TL glow peak, but reduced TL glow curve intensity. TL glow curve shape with the maximum peak in a temperature range of $150{\sim}250^{\circ}C$ was the most useful characteristic providing information required for confirming the irradiation status.
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