This survey was carried out to Investigate the effects of dietary attitude on the nutrition knowledge, food habits, the daily average nutrient Intakes and the intake of Instant food, convenience food & fast food between college women and their mothers. Questionnaires were completed by 214 college nutrition majors and also by their mothers numbering at 173. College women's mothers showed a better average in meal time regularities per week than that of. college women. Also it is the fact that the college women had a higher frequency rate of instant food and fast food than their mothers. In the case of both college women and mothers if they eat at regular meal times they had a higher score in food habits. But the daily average nutrient intakes was not significant because of the fact that the meal time regularity and nutrient intakes 414 not concise. The higher frequency of instant food intake had a lower score in food habits and nutrition knowledge. The higher frequency of fast food Intake had a higher food habits score but it also had a lower score in nutrition knowledge. As in the intake of instant food and convenience food the college women had a higher Intake frequency. In the dietary pattern the college women they liked to eat (lour foods. But their mothers liked to eat Korean foods. The selective motive and the degree of satisfaction of food service industry product was for convenience and time saving. The food service industry products were found to be unsatisfactory in nutrition and sanitation. Therefore we must be more aware of preventing the disappearance of Korean traditional foods. For the continuing development of our dietary culture we need to have the food service industry to develop more suitable diet for Korean.
For the Effective utilization of the fish resources in coastal regions, investigations on preparation of powdered dried arkshell instant soup., quality stability of the products during storage and utilization as a food material were carried out with arkshell, Anadara broughtonii. Three kinds of powdered instant soup were prespared as 0% table salt(A), 5% table salt (B), 15% table salt(C) and packed with vacuum in laminated film bag. (polyester/nylon: 85${mu}ell$/15${mu}ell$, 18$\times$27cm) Their processing conditions and quality stability during storage at room temperature for 90 days were examined. Powdered instant soup was made by washing raw arkshell to remove visceral, clay, sand and blood, hot air drying(60$\pm$1$^{\circ}C$, 20 hrs) after draining and pulverizing dried arkshell to 35 mesh. Powdered instant soup was made by adding 2% sugar 0% table salt (5% and 15% table salt), 10.5% monosodium glutamate, 0.3% black pepper and 0.3% garlic powder to the pulverized dried arkshell. The condition of moisture and water activity of the products were 5.9-6.9% and 0.42-0.43, respectively. The moisture content s , water activity and pH of the products were showed little change and volatile basic nitrogen of them increased slightly during storage. Thiobarbituric acid value increased up to 60 days of storage and then decreased slightly. In solubility, powdered instant soup were showed no remarkable difference comparing with goods on the market. The color value of th products were showed little change during storage, In sensory evaluation, product B were scored slightly higher, in most cased, in flaver, color. taste and overall acceptability comparing with product A or product C during storage. Judiging form the sensory evaluation, powdered instant soup of 5% table salt (B) were the most desirable, and the quality of the products was stable for 90 days at 20$\pm$3$^{\circ}C$.
This study was to investigate the sorbic acid, benzoic acid and sulfur dioxide in commonly consumed beverages, snacks and instant ramens in Korea. A total of 150 food samples including 50 beverages, 50 snacks and 50 instant ramens were examined using the Korea Food Code method. Sorbic and benzoic acid were analyzed by the HPLC method, whereas sulfur dioxide was measured by Monnier-Williams method. Our results indicated that benzoic acid was detected in six beverages samples, and its concentration was in the range of 3.08-11.94 mg/kg. The contents of both sorbic and benzoic acid in 50 beverage samples did not exceed the residue allowance standards set by the Ministry of Food and Drug Safety (MFDS). Sulfur dioxide was detected in 12 beverages samples, but its content was lower than the detection limit specified in the method by the Korea Food Code. On the other hand, sorbic acid was not detected all samples. These results provide a basic data regarding sorbic acid, benzoic acid and sulfur dioxide in commonly consumed beverages, snacks and instant ramens in Korea.
This study considered the whole intake patterns and realities of consumption of instant noodles on sales targeting children and adolescents. Based on a total of 1021 subjects, data from self-administrated questionnaires were collected and analyzed using comparative statistical analysis, including frequency, chi-square, t-test, and one-way ANOVA. Results of the study were as follows. The preference levels for instant noodles by children and adolescents were 5.25, thereby showing a more than moderate preference. Middle school boy students' preference for instant noodles was the highest. The main reason for preferring instant noodles was taste and convenience. The main reason for disliking instant noodles was poor nutrition and likelihood of becoming fat. The intake of instant noodles was the highest between lunch and dinner with a frequency of once to twice per week. Content of soup powder given taking instant noodles was the largest in having putted all. The soup quantity of being left given taking instant noodles was possessed the majority in almost not eating soup. The main reason for not consuming soup was being full or concerns for health. A significant difference was observed in preference level for instant noodles and in intake patterns depending on the respondents' general characteristics. Limitations and future research directions are also discussed.
N-nitrosamines can be produced in the process of heating, processing, storage and packaging. Migration specifications for N-nitrosamines exist only for rubber baby bottle nipples, which are regulated by the Ministry of Food and Drug Safety (MFDS). There is no regulation for other food contact substances (FCS) and studies on N-nitrosamines migration from FCS are rather limited. A pilot study showed an increase in N-nitrosamines contents when cooking instant noodles. Thus, the migration from the packaging was suspected and it was necessary to monitor the migration of N-nitrosamines from food packaging materials and to examine the change in N-nitrosamines contents when cooking instant foods. Three N-nitrosamines, NDMA (N-nitrosodimethtlamine), NDEA (N-nitrosodiethylamine), NDBA (N-nitrosodibutylamine), were analyzed in migration test solutions from plastics such as polyethylene, polypropylene and polystyrene, papers and aluminium containers. In all test solutions, N-nitrosamines were detected less than method quantitation limits (MQLs). Food samples were also investigated to ensure that there is no effect from food contact substances when cooking instant foods. In retort sauces such as curry, black soybean sauce and tomato sauce, NDMA concentration was ranged from 0.54 to $3.81{\mu}g/kg$, but there were no significant differences between unheated and heated samples. However, the NDMA contents were significantly increased in most of the instant noodle samples tested when cooked (p < 0.05). No effects from the food contact substances or cooking water was observed. Only when the seasoning powder and noodles were cooked together was NDMA detected. Individual components (noodle, seasoning powder or dried vegetable) or other combinations such as noodles and dried vegetables did not generate N-nitrosamines. Therefore, it is speculated that NDMA may be formed from the precursors in noodles and seasoning powders when they are solubilized in a medium of water.
Four-dimensional response surface methodology was used for optimizing preparation conditions and monitoring sensory quality of instant rice gruel prepared using oyster mushroom and brown rice. Water absorption time of brown rice and glutinous rice to prepare instant rice gruel were 50 hr at $5^{\circ}C\;and\;1\;hr\;at\;20^{\circ}C$, respectively. The optimum conditions predicted for each corresponding sensory properties of instant rice gruel were 47.58% (rate of brown rice in water-absorbed brown and glutinous rice), 569.68 mL (content of solution) and 52.40 min (heating time at $120^{\circ}C$) in viscosity of instant rice gruel, 47.15%, 568.49 mL and 53.04 min in taste of instant rice gruel, 44.06%, 558.54 mL and 53.84 min in mouth-feel of instant rice gruel, and 46.20%, 561.64 mL and 51.60 min in overall acceptance of instant rice gruel, respectively. The optimum conditions, which satisfy all sensory properties of rice gruel, were 44%, 620 mL and 56 min in rate of brown rice in water-absorbed brown and glutinous rice, content of solution and heating time, respectively. Sensory scores predicted at the optimum conditions were in good agreement with experimental sensory scores.
Journal of the Korean Society of Food Science and Nutrition
/
v.44
no.9
/
pp.1356-1363
/
2015
The purpose of this study was to investigate the quality characteristics of instant rice noodles made from rice flour with different harvest times rice processed products. The physicochemical characteristics of three different types of rice flour were investigated, including common rice flour (CRF, harvested in 2012), stored rice flour (SRF, harvested in 2008) and CSRF (CRF mixed with SRF). Instant rice noodles were manufactured with the three types of rice flour, and their quality and sensory characteristics were investigated. The water-binding capacity of rice flour was highest in CSRF. Regarding setback on RVA pasting viscosity, SRF and CSRF showed higher values than CRF. Water absorption after cooking of instant rice noodles was highest in common rice noodles (CON). The volume after cooking of instant rice noodles increased in rice noodles with stored rice flour (SRN). Turbidity of rice noodles using CSRF (CSRN) was higher value than that of CON. In texture properties, CON displayed the highest hardness, adhesiveness, springiness, and chewiness. In the sensory evaluation, overall acceptability values of CON were significantly higher than those of other rice noodles (SRN and CSRN). It was concluded that rice noodles with stored rice flour have increased turbidity with reduced texture and overall preference. This study suggests that addition of CRF may result in significantly increased overall quality of instant rice noodles prepared by SRF.
The superoxide dismutase(SOD)-like activities for 26 kinds of herbs and spices and 10 kinds of instant curry products were determined by measuring their abilites to reduce nitroblue tetrazolium. All samples showed the SOD-like activities. Rosemary, cassia, tarragon, allspice, oregano, bay leaves, basil, marjoram, thyme and star anise had higher activities than $10^5\;unit/g$ and clove had highest activity of $232,143{\pm}19.989\;unit/g$. The SOD-like activities for 10 kinds of instant curry products were in the range of $400{\sim}700\;unit/g$ when measured after heat treatment at $100^{\circ}C$ for 10 min. The water extracts of spices, herbs and curries were obtained by heat treatments of $25^{\circ}C$ for 60 min or $100^{\circ}C$ for 10 min, and their nitrite scavenging activity was measured at different pH conditions(1.2, 4.2 or 6.0). The nitrite scavenging activities were higher at acidic pH. However, the effects were not different from two heat treatments. The water extracts from cassia, bay leaves, allspices, oregano, staranise, rosemary, clove and tarragan had high nitrite scavenging activity(>90%) when they were measured at pH 1.2, and those from clove was highest $(97.58{\pm}0.88%)$. The pure curry used as raw materials for instant curry products had the nitrite scavenging activity in the range of $50{\sim}60%$ at pH 1.2 and the activity was not changed during the aging period$(0{\sim}12weeks)$. The ten brands of instant curry products had the nitrite scavenging activities of $12{\sim}28%$ at pH 1.2
We investigated how the addition of polypeptides to instant fried noodle dough affects the dough properties, starch gelatinization, and textural properties of cup-type instant fried noodles. After comparing farinograph results of 100% wheat flour with 1% wheat flour substituted with gluten, there was a small difference in the mechanical dough properties. However, in the case of 1% wheat flour substituted with gluten peptides, the dough development time increased, dough stability decreased, and weakness increased. On the other hand, when gluten or gluten peptides were added, starch gelatinization did not change significantly. At the steaming stage, substitution with gluten peptides or soybean peptides markedly changed the molecular weight distributions of extractable polypeptides. Especially in the case of wheat flour substituted with 1% gluten peptides, the relative portion of low Mw extractable polypeptides (2.5-50 kDa) decreased more compared to a control. Also, the hardness and chewiness decreased in cooked cup-type instant fried noodles containing gluten peptides. This suggests that the addition of gluten peptides can reduce the rehydration time of cup-type instant fried noodles.
The nutritional value of commercial instant noodles produced in summer and winter seasons were investigated. Only the noodle itself was used for the analysis. The content of carbohydrate was calculated by difference. The calorie was estimated by using a conversion factor of 4.32 for protein, 9.21 for fat and 4.20 for carbohydrate. Bag-type instant noodles had higher moisture, but lower content of fat and calorie compared with bowl-type products. No seasonal variations on composition and calorie were found. The calorie was negatively correlated with moisture or carbohydrate content, and positively correlated with fat content. The calorie estimated from linear regression equation of calorie vs. moisture was similar to the value calculated using a conversion factor, which implies that the calorie of the instant noodle can be simply estimated from the moisture content. The intakes of calorie from fat accounted for 30.8% and 34.1% from bag-type and bowl-type noodles, respectively. The content of ash and fat, and calorie were significantly decreased upon cooking, which were more pronounced in the bowl-type products. At the same moisture contents the loss of calorie for bag-type products was 3.5% and for bowl-type ones was 7.7%.
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