The effect of different steamed garlic powder concentrations on sponge cake quality were investigated by analyzing both physicochemical and sensory properties. The sponge cakes were mixed with either steamed and freeze-dried garlic powders at different ratio [0, 2, 4, 6, 8 and 10 % (w/flow w)]. The density of the prepared dough increased with increasing amounts of steamed garlic powder when the concentrations were over 4%. The heights of the sponge cakes ranged from $3.53{\pm}0.12{\sim}3.60{\pm}0.15cm$ in the $4{\sim}8%$ steamed garlic powder samples, and were significantly higher than the control. The specific loaf volume of the cake was $3.86{\pm}0.07mL/g$ the highest in the 4% steamed garlic powder samples. When the garlic powder concentration was over the 6%, the specific loaf volumes of the sponge cakes decreased with increases in garlic powder contents. The measured L- and b-values of the crust were significantly decreased with increasing garlic powder concentration while the a-value gradually increased. The L-value of the crumb increased with increasing steamed garlic powder concentration, especially at concentrations greater than 4%. The a-values were higher in the steamed garlic powder treatments than in the control. however, no significant differences were found in the concentrations over 4%. The hardness of the control was $812.42{\pm}56.69g/cm^2$, whereas it ranged from $1005.36{\pm}43.65{\sim}1522.78{\pm}204.95g/cm^2$ in the experimental groups. Hardness increased with increasing garlic powder concentration. When considering moistness, overall acceptability, and other characteristics, the optimal concentration of steamed garlic powder was found to be 4%.
This study investigated the antioxidant and antidiabetic activities of Stachys sieboldii Miq. extracts by solvents (water, ethanol, butanol, chloroform, and hexane). The contents of total polyphenols (7.18-37.25 mg/g) and flavonoids (0.21-5.21 mg/g) in extracts from Stachys sieboldii Miq. showed a significant difference dependent on the extraction solvents, butanol > ethanol > water > chloroform > hexane. Antioxidant activities by DPPH and ABTS radical scavenging were increased in a dose-dependent manner. These activity trends associated with the extraction solvent were different at each concentration, but resembled phenolic compound contents trend, generally. FRAP value increased in a dose-dependent manner, but there was a difference in radical scavenging activities when comparing between extraction solvents by butanol > ethanol > hexane > chloroform > water on all concentrations. The trend of ${\alpha}$-amylase inhibition of extracts from $1,000{\mu}g/mL$ to $2,000{\mu}g/mL$ was not affected as enzyme activity is promoted and not inhibited. The inhibition of ${\alpha}$-glucosidase was increased in a dose-dependent manner without water extracts, the activity on hexane extracts was higher than others per the extraction solvent. ${\alpha}$-Glucosidase inhibition of hexane extracts showed 57.76% at $250{\mu}g/mL$, which is 2.8 times higher than the second highest chloroform extract (20.65%). From these results, we presume that the active ingredients of Stachys sieboldii Miq. is different according to the extraction solvent and also the activity is different by these major functional groups.
This study was conducted to evaluate the effect of Sikhe made by medicinal herb on the functional level of liver. Water extract I (12.9% W/W) and II (25.8% W/W) were obtained from medicinal materials: Caragana Sinica, Glycyrrhiza uralensis, Atractylodes rhizoma alba, Atractylodes rhizoma alba, Crataegus pinnatifida, Paeonia lactiflora Pasll., Hordeum vulgare Linne, Oryza sativa Linne, ginger, peer and jujube. Experimental groups were divided into the control diet group (C), high fat diet group (HF), high fat diet treated with 5% extract I group (HFE I ) and high fat diet treated with 5% extract II group (HFE II). In sensory evaluation, overall quality scores associated with color, aroma, flavor and taste were significantly higher in water extract II than in water extract 1. After investigating functional and lipid levels of livers in rats, we found that the administration of water extract I or water extract II to the high fat diet group (HF) did not affect the gain of body weight but mildly reduced GOT or GPT activity in the high diet group. Moreover, administration of these medicinal herbal extracts significantly decreased the levels of total lipid, triglyceride and total cholesterol in the high fat diet group (HF). However, administration of these medicinal herbal extracts did not affect the level of phospholipid. In conclusion, as Sikhe made by medicinal herb slightly decreased the activity of GOT or GPT and amount of lipid in liver, prevention against high fat diet is thought to be important for liver protection.
Kim, Joung-Hee;Kim, Jong Guk;Kim, Sun-Gun;Jeong, Seung-IL;Jang, Min-Jung;Kim, Kil-Soo;Kim, Keuk-Jun;Kwack, Seung-Jun
Journal of Life Science
/
v.27
no.4
/
pp.383-389
/
2017
This study intends to analyze the contents of rutin, procyanidin B3, quercetin, kaempferol, known to have antioxidant, anti-inflammatory and anti-carcinogenic effects, among the polyphenol type contained in the grape pruning stem extracts (GPSE), utilizing grape stems being discarded after harvest, measure the effects on the skin moisture, inhibition of skin cell proliferation, anti-inflammatory on the damaged skin of a HR-1 mice induced with UVB, and verify the applicability as a material for functional food and functional cosmetics. The results of verifying the photoprotection effects through the skin proliferation control through of GPSE showed similar result to suncream was achieved at the GPSE concentration of 2,000 mg/kg on the epidermis (p<0.05). The results showed anti-inflammatory effects on all groups applied with GPSE as compared to the control group irradiated with UVB, but at the GPSE concentration of 1,000 mg/kg, a lower COX-2 protein expression at 8%, lower than the 22% of suncream, was observed to achieve an excellent anti-inflammatory effect (p<0.05). The results of this study confirmed the existence of active polyphenol type, such as rutin, kaempferol, querocetin and procyanidin B3, within the GPSE, and GPSE has improvement effects on moisturizing effects, skin proliferation control effect, inflammatory control effect and improvement effects on the skin barrier function through UV ray damage. GPSE is a functional ingredient with a potential for skin protection effects, and has high utilization as an ingredient for functional food and functional cosmetics.
This experiment was carried out to examine the fermentation properties of yogurt with Lycii fructus, Lycii folium and Lycii cortex powder, and extract additives at concentrations of 0.5, 1.0, 2.0, 4.0, and 6.0%. Lactic acid bacteria was used in a mixed starter culture of Streptococcus salivarius ssp. thermophilus(ST36) and Lactobacillus delbrueckii ssp. bulgaricus(LB12). When the boxthorn was added with extract types, the changes of pH, acidity and lactic acid bacteria counts of yogurt during the fermenation of 3 hours were pH 5.64, titratable acidity 0.85%, 5.80xl0$\^$6/cfu/ml of viable cell counts for control yogurt, whereas those were pH 4.10∼5.06, titratable acidity 0.98∼1.27%, 1.80∼9.60x10$\^$7/ cfu/ml of viable cell counts for Lycii fructus extract yogurt. The lactose hydrolysis ratio was better for 1.0% Lycii fructus extract yogurt(42.00%) and 1.0% Lycii folium extract yogurt(41.46%) than for control yogurt(28.40%). Also, content of lactic acid of 1.0% Lycii fructus(11.9 times) and 1.0% Lycii folium extract yogurt(10.6 times) produced more than control yogurt(7.3 times). The viscosity of yogurt was better for boxthorn extract yogurt(1,027∼1,382 cps) than for control yogurt(975cps). The sensory scores of color, taste and overall acceptability of yogurt with 0.5, and 1.0% Lycii fructus extract additive were better than other groups. The yogurts made with increased Lycii fructus extract concentration(0.5∼6.0%), showed the increase of lactic acid, titratable acidity, number of lactic acid bacteria, viscosity and lactose hydrolysis rate compared to the treatments of 0.5, 1.0, 2.0, and 4.0% Lycii folium and Lycii cortex extract and powder yogurt. We gained excellent results from the yogurt to which Lycii fructus extract was added with 0.51.0% concentration.
The objective of this study was to investigate the effect of high pressure (HP) processing on shelf life, as well as the addition of phosvitin on lipid and protein oxidation stability of minced chicken leg meat. Minced chicken leg meat was mixed with yolk phosvitin at 500 or 1000 mg/kg meat levels, and divided into raw and cooked groups. Then, the samples were subjected to HP at 0.1, 300, and 600 MPa. The total aerobic bacteria, lipid and protein oxidation, along with instrumental meat color ($L^*$, $a^*$, and $b^*$value) of the samples were measured during storage for 7 d at $4^{\circ}C$. In raw meat, the number of total aerobic bacteria was decreased by HP at 300 MPa (4 Log reductions) and 600 MPa (5 Log reductions) after 7 d of storage (p<0.05). HP at 600 MPa increased lipid oxidation of samples at all storage days and protein oxidation of samples during storage at 3 and 7 d. HP induced the changes of meat color by increase of $L^*$ value and decrease of $a^*$ value (p<0.05). The total aerobic bacteria was not detected in the cooked samples, regardless of HP pressure, and the lipid or protein oxidation of the cooked sample treated by 600 MPa was higher than that of the control (0.1 MPa) on day 7 or control on day 3, respectively (p<0.05). The results suggested that HP can improve the shelf life of minced chicken leg meat. However, phosvitin might be a limited antioxidative agent for the improvement of oxidation stability induced by HP.
Journal of the Korean Society of Food Science and Nutrition
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v.31
no.2
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pp.257-262
/
2002
Effects of dietary fatty acids and vitamin E on antioxidant system were studied in rat liver and serum. Sources of dietary fat (10 wt%) were safflower oil (SO) poor in $\omega$3 fatty acid and mixed oil (MO) with computer-adjusted fatty acid ratios (AA/DHA=1.4, $\omega$6/$\omega$3=6.3, P/M/S=1.0/l.5/1) with (ME) and without (MO) vitamin E (500 mg/kg diet). Rats were fed the three kinds of diet from 3~4 wks prior to the conception. At the age of 3 and 9 wks of the second generation rat, antioxidant vitamins and glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) activities were measured in the liver and serum. The concentrations of $\beta$-carotene were lower in ME than in MO and SO in the liver at the age of 3 wks. It seemed that vitamin E has an inhibitory action on the uptake of $\beta$-carotene or acts as a preferred antioxidant to $\beta$-carotene. The concentrations of lycopene were lower in SO than in MO in the liver at the age of 3 wks. The concentrations of cryptoxanthin showed no significant changes within groups. The activities of GSH-Px tended to increase in ME compared to MO and the ratios of SOD/GSH-Px tended to decrease in ME compared to MO in the liver at the age of 3 weeks. The activities of antioxidant enzyme at the age of 3 weeks and 9 weeks were similar. This suggested that the activity level of antioxidant enzymes reached to the adult level at the age of 3 weeks which is the end point of lactation period.
Journal of the Korean Society of Food Science and Nutrition
/
v.31
no.2
/
pp.343-350
/
2002
This study was conducted to standardize the manufacturing process of doenjang. The preparation methods, kinds and levels of the ingredients were determined by the statistical surveys of literatures obtained from cooking books, scientific papers and doenjang manufacturing factories. The standardized preparation of fermentation methods of doenjang were classified into two large groups, that were traditional and modified (commercialized) methods. Most soybeans used in doenjang preparation were the large size. To prepare traditional doenjang, soybeans were cleaned, scaled and cooked for 2 hrs at atmospheric pressure. These cooked soybeans were crushed in water and molded as brick shape. The molded soybean was dried for 2 days in the air, hung up by rice straw and fermented for 30~60 days under natural environmental condition (called meju). Recently soybean grain meju that inoculated with Asp. oryzae also frequently used to make traditional doenjang. The fermented meju was brined with a ratio of meju : salt : water = 18.4 : 14.6 : 67.0 and the meju-brine mixtures were ripened for 2 months. When the meju-brine mixture was fully fermented, it was separated into liquid and solid parts. The crushed solid part was further ripened in a separated pottery for 60 days and become doenjang. The liquid part was filtered, boiled and used as soy sauce. In modified commercial doenjang preparation, soybeans were cocked by autoclaving and then cooled about to 3$0^{\circ}C$. Separately, steamed barley grains or wheat flour were inoculated with 0.2% Asp. oryzae and incubated for 3 days at 3$0^{\circ}C$ and mixed with the crooked soybeans, salt, and water (soybean : salt : starch : water = 39.8 : 12.5 : 22.6 : 25.1). These mixtures were ripened for 30 days at 3$0^{\circ}C$. It seems that the manufacturing process of traditional doenjang needs to be more industrialized, whereas, the commercial doenjang preparation is going to adapt the traditional processing method of doenjang.
Journal of the Korean Society of Food Science and Nutrition
/
v.34
no.5
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pp.652-658
/
2005
This experimental was carried out to evaluate the clinical effects of Ophicephalus argus and Crubita moschate which have been traditionally applied to postpartum care in Korea, and compare them with the effect of Saenghwtang. Fifty Sprague-Dawley female rats weighing $250\~280$ g were divided into five groups: a normal saline-treated group (NSG), a Saenghuatang-treated group (STG), an Ophicephlus argus-treated group (OTG), and a Crubita moschate-treated group (CTG), also non-pregnant group (NPG). Except for the NPG, each extract was administered for one week to each group after delivery. We measured the WBC, RBC, serum levels of hemoglobin and hematocrit, the platelet count, serum levels of fibrinogen, albumin, thyroxine and urine levels of sodium and potassium. STG showed a significant (p<0.05) decrease of WBC count, fibrinogen content and urine levels of sodium and potassium and a significant (p<0.05) increase of RBC, hemoglobin, albumin and thyroxine in comparison with those of the NSG. OTG showed a significant (p<0.05) decrease of WBC count, fibrinogen and the significant (p<0.05) increase of albumin and thyroxine in comparison with those of the NSG. CTG showed a significant (p<0.05) increase of albumin and thyroxine in comparison with that of NSG. These results suggest that Saenghwatang is more effective than Ophicephalus argus and Crubita moschate for postpartum recuperation although they also have some effects on recuperation of deteriorative blood components after delivery. Therefore, these findings indicate that futher investigation for the other effects of Ophicephalus argus and Crubita moschate is necessary.
Journal of the Korean Society of Food Science and Nutrition
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v.32
no.2
/
pp.295-301
/
2003
This study was carried out to investigate perception about body image, dietary attitude, nutrient intake and dietary self-efficacy of high school students in Pusan. A questionaire survey was distributed among 491 high school students. The survey was conducted from April 8 to April 22 in 2002. The results are summarized as follows. Forty percents of the underweight group, 53.9% of the normal weight group, 61.8% of the overweight group and 48.2% of obesity group have correct perception about their body image. Most of the students were concerned with their body image and weight control. Obesity of parents was significantly correlated with obesity of the subjects (p<0.01). The higher obesity rate, the lower dietary self-efficacy. The higher dietary self-efficacy, the higher dietary attitude. There was a significant positive correlation between the education level of their parents and dietary attitude of the subjects (p<0.01) and a significant negative correlation between obesity rate of their mothers and dietary attitude of the subjects (p<0.01). Dietary attitude scores showed no significant difference among the groups. Intakes of most nutrients, except protein, niacin and vitamin C, were lower than those of the recommended dietary allowances for Koreans. Therefore, proper nutrition education is required to improve their nutritional status and dietary self-efficacy.
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