• Journal of the Korea Institute of Information Security & Cryptology
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• v.34 no.3
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• pp.505-513
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• 2024

This study investigates how consumers perceive the collection of behavioral information through 'cookies' on OTT platforms and the impact it has on personalized services. Through SPSS analysis on 120 consumers, which was conducted to examine four hypotheses, correlations were found between awareness of OTT companies' behavioral information collection and online tracking recognition, awareness and willingness to provide cookies, and the extent of confirming behavioral information collection terms during registration and online tracking recognition. The study concludes that consumer knowledge about behavioral information significantly influences the importance and intention to use personalized services, highlighting the need for regulatory measures by both companies and government entities.

• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.7
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• pp.1071-1076
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• 2016

The feasibility of incorporating aronia powder (AP) as a value-added food ingredient into convenient food products was investigated using cookie as a model system. AP was incorporated into cookies at amounts of 0, 1, 2, 3, and 4% (w/w) based on total weight of wheat flour. The pH level of cookie dough decreased significantly with increasing levels of AP (P<0.05), whereas moisture content and density were not directly affected by levels of AP incorporation. The spread ratio increased significantly upon addition of AP; however, it was not significantly affected by level of AP incorporation. The loss rate of cookies decreased significantly with increasing levels of AP (P<0.05). In terms of color, lightness and yellowness decreased while redness increased significantly (P<0.05) with increasing levels of AP. Use of AP significantly decreased hardness of cookies (P<0.05), but no significant differences were found between control and 1% sample, 1% and 2% sample, 2% and 3% sample, and 3% and 4% sample (P>0.05). 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) radical scavenging activities were significantly elevated by AP addition, and they increased significantly as AP concentration increased in the formulation (P<0.05). Correlation analysis indicated that acceptances of color and chewiness were negatively correlated well with the level of AP incorporation, density and moisture content of cookie dough, and cookie redness, whereas they were positively correlated with pH of cookie dough, loss rate, and hardness (P<0.01 or P<0.05). Finally, consumer acceptance test indicated that the highest levels of AP incorporation (4%) had an adverse effect on general consumer preferences. In contrast, cookies with moderate levels of AP (2%) are recommended based on overall scores to take advantage of the antioxidant properties of AP without sacrificing consumer acceptability.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.7
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• pp.1103-1108
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• 2013

This study was conducted in order to determine the effect of autoclave and microwave treatments on cookies. Wheat dough was treated in an autoclave (30 min), a microwave (1 min), and both autoclave and microwave (30 min/1 min). The treated dough was baked or non-baked and cookies quality was assessed. The pH, moisture content, color, and texture were measured, and sensory evaluation was performed. The pH showed a slight increase when dough was treated in a microwave (before baking) and decreased in both the autoclave and autoclave/microwave (after baking) treatments. The moisture content showed a significant increase, compared to the control, in autoclave treatments. Regarding surface color of cookies, lightness was decreased in all treatments and redness was higher compared with the control, except for microwave (before baking), and yellowness was lower compared to the control, except for microwave treatment (after baking). Hardness, gumminess, chewiness, and shear force showed a significant increase when dough was treated in an autoclave/microwave (after baking) compared to the control. In the sensory evaluation, color, taste, texture, shape, and overall preference of cookies treated with an autoclave/microwave (after baking) showed a low score. These results suggest that autoclaving and microwaving may reduce the quality of bread and that preparation of countermeasures is necessary.

• Food Engineering Progress
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• v.15 no.4
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• pp.404-412
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• 2011

The purpose of this study is to prepare extruded rice flours suitable for baking rice cookies. The extruded rice flours were prepared at 100 and 130$^{\circ}C$ temperature and 25 and 27% moisture content in a co-rotating twin screw extruder. The rice extrudates were dried at 100$^{\circ}C$ for 18 hr and subsequently ground into the fine flour. Characteristics of the extruded rice flours were examined by rapid visco analysis, hydration property analysis, differential scanning calorimetry (DSC), and in vitro digestion test. Water absorption, solubility, and swelling power of all extruded rice flours were higher than those of native rice flour. DSC analysis showed that native rice flour had a peak at about 65$^{\circ}C$ while all extruded rice flours did not show any peaks since they were already gelatinized during the extrusion proess. Viscosity of the extruded rice flours decreased with increasing temperature and lowering moisture content in the extrusion proess. The extruded rice flours prepared at 130$^{\circ}C$ exhibited lower viscosity than those prepared at 100$^{\circ}C$. The operating temperature of the extrusion proess was critical for the starch digestion in vitro. The extruded rice flours prepared at 130$^{\circ}C$ showed a rapid decrease in digestible starch content while an increased level of slowly digestible starch content was observed compared to those treated at 100$^{\circ}C$ in the extruder. Cookies were prepared with a mixture of wheat flour and extruded rice flours at the ratio of 7 to 3. The cookies made with the extruded rice flours had lower spread factor and darker yellow color than those prepared with wheat flour only. Hardness of the extruded rice flour-added cookies was similar to that of the wheat flour cookie whereas their overall acceptance was better. Therefore the rice cookies partially supplemented with extruded rice flours may have a potential as early childhood foods which require soft texture and allergy reduction.

• Journal of Food Hygiene and Safety
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• v.36 no.6
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• pp.493-503
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• 2021

The study was designed to analyze raw and auxiliary materials of Korean traditional cookies such as Yugwa and Gangjeong, equipment and tools, personal hygiene of workers and microbial contamination of materials by each manufacturing process. In addition, it looked at washing method for reducing microorganisms at the site and reduction effect of microorganisms by frequency in the manufacturing processes of Yugwa. In the process of producing Korean traditional cookies, the level of total aerobic bacteria (TAB) in popped rice was 1.2 Log CFU/g and the level of TAB in finished products increased to 3.7 Log CFU/g. In the process of producing Yugwa, the level of TAB increased to a maximum of 6.5 Log CFU/g in the soaking process but decreased to 1.3 Log CFU/g in the frying process. However, the level of TAB increased again to 1.3 Log CFU/g in finished products that proves its recontamination. It is estimated that he manufacturing process causes cross-contamination that comes from the work tools, equipment or workers. In particular, the spatula, one of the work tools, was found to have 4.4 Log CFU/g of aerobic bacteria and 4.2 Log CFU/g of colon bacillus that show they are highly contaminated. In the soaking process of Yugwa that lasts seven days, the level of TAB was a maximum of 10 Log CFU/g and the level of total colon bacillus was 6.8 Log CFU/g. When compared with washing methods, using hands and tools or running water, it is confirmed that the level of both TAB and total colon bacillus decreased to 5.0 Log CFU/g and 2.8 Log CFU/g respectively when hands were washed with running water 10 times. The above result shows that it's required for workers to wash their hands as well as wash and disinfect work tools and equipment in the process of producing Korean traditional cookies at small-scale companies. In addition, to reduce the level of microbial contamination in finished products, workers are required to apply their reduction method at the site.

• Journal of the Korean Society of Food Science and Nutrition
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• v.38 no.7
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• pp.920-925
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• 2009

This study evaluated the physicochemical and sensory characteristics of cookies containing various concentrations (0, 3, 6, and 9%) of cherry powder (obtained from ground fruit of Prunus serrulata L. var. spontanea Max. wils.). The pH of dough decreased with the addition of cherry powder, whereas the density of dough increased. The spread factor of control samples also evidenced significantly higher values than the other samples. The results of a hardness assessment demonstrated that the addition of cherry powder exerted a significant effect on cookie hardness. Lightness (L) and yellowness (b) of cookie color decreased as the concentration of cherry powder increased, whereas the redness (a) increased. The antioxidative activity measured by DPPH radical scavenging activity of cookie increased as the concentration of cherry powder increased. The cookies containing the 3 and 6% cherry powder had acceptable sensory properties, such as color, smell, taste, hardness, crispness, and overall acceptability. The results exhibited that adding the cherry powder into the cookie increased antioxidant activity, and the highest quality improvement was obtained by incorporating the 3 and 6% of cherry powder into the cookie formula.

• Journal of Nutrition and Health
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• v.20 no.6
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• pp.395-404
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• 1987

A nutritional quality and rancidity of marketed korean traditional foods were assessed. That is, basic chemical analysis were done in Galbi-tang, Sullung-tang, Pibimbap, Pulkogi and Naeng Myon. Ca and P for the Galbi-tang and Sulung-tang and vitamin C for the Pibimbap were analyzed. Chemical analysis were done in Gangjung 4, Sanja 1, Parksan 6, Yoomilkwa, 4 out of korean traditional cookies. Amounts of energy and protein in Galbi -tang and protein and Ca in Sullung -tang are more than the recommended allowance at ta meal. Amounts of Ca in Galbi-tang and energy in SUllung-tang are less than the recommended . The amounts of energy and protein in Pibimbap, Pullkigi and Naeng Myon Except protein in Pullkogi are short of the recommended at a meal. And amounts of vitamin C in Pibimbap are short of the recommended, too. The content of carbohydrate in Korean traditional cookies is the highest one comparing to others. Contents of crude fat in Gangjung Parksan and Dasik which are made up of sesame, black sesame and pine nuts are higher than that of other Korean traditional cookies. Acid value and peroxide value in all Gangjung, Yoomilkwan and Sanja except the peroxide value in one Sanja product, are not in the excess of standard of peroxide value and acid value. The standard are 600meq/kg and 3 for peroxide value and acid value respectively in oil treated foods.

• Journal of the Korean Society of Food Culture
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• v.5 no.4
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• pp.415-423
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• 1990

'The Joobang' is a cooking book written purely in Korean which came from a Mr. Lee. It is unknown when and by whom this book was written, but it is inferred from red pepper mentioned in this book and from Korean-writting type that the book was written around in the mid-nineteenth century. The contents of 'the Joobang' consist of thirty seven items in all : sixteen items of rice alcoholics, five side dishes, eleven Tucks(rice cakes) and Guaja(cookies) and five processed materials. Cereals for making rice alcoholics were regular rice and sticky rice. In the first brew, rice alcoholics is made all from regular rice, and in the second brew, fifty six percent of regular rice and forty four percent of sticky rice was made use of. For five items of alcoholics forming 31.3% of alcoholics, flour was added, in which case the proportion of leaven to cereals was lower. There were four types of processing cereals in brewing rice alcoholics Jee-ae-bop(steamed rice, 60.9%), thick gruel with cereals ground and completely cooked(8.7%), thick gruel with cereals ground and half cooked (26.1%) and GooMung Tuck(doughnut-shaped rice cake, 4.3%). The comparison of the materials for brewing rice alcoholics and of the types of processing cereals presented in the seven cooking books purely in Korean(Umsik Deemeebang, JoobangMoon, Umsikbo, Sool-mandununbop, Kyuhap chongseo. The Kims' Joobangmoon and The Lee's Umsikbup) showed us the following facts ; Yihwajoo (rice alcoholics brewed around the blooming time of pear trees) and Kwahajoo(rice alcoholics which passed the summed time) were most often introduced and commonest, and the materials for brewing and the types of processing little changed over times. The materials for side dishes were all animal food, and vegetable food was little used for side dishes. Red pepper was used for seasoning. It is a problem of Korean traditional cooking that there were no units of measuring for side dishes. The main materials for Tuck(rice cakes) and Guaja(cookies) were sticky rice, regular rice and honey. There was a variety of terms for the process, from which we can see that the procedures of making Tuck(rice cakes) and Guaja(cookies) were very complicate. Processed materials were chiefly made of sticky rice and the material of firewood(oak trees) and the strength of fire(fire burning vigorously and fire turning to ashes) were described.

• Journal of the Korean Society of Food Science and Nutrition
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• v.43 no.7
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• pp.999-1008
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• 2014

We evaluated the quality characteristics and antioxidative activities of cookies containing different types of egg yolk (LEY, Liquid Egg Yolk; FEY, Fresh Egg Yolk) and percentages of blueberry powder (5, 10, and 15%). As the amount of blueberry powder increased, the levels of antioxidants based on ABTS and DPPH radical scavenging activities increased in general. Within the 15% group, contents of polyphenols and flavonoids were higher in the FEY group, whereas content of anthocyanins was higher in the LEY group. Measurement of ABTS radical scavenging activity showed that the FEY group had a higher value within the 10% group, whereas the LEY group scored higher within the 15% group. Comparison of sensory properties showed no significant difference between the two egg yolk types. If commercialized, manufacturing cookies with FEY or LEY will not make a significant difference. Regardless, 15% blueberry powder would be the most appropriate, as it scored the highest in terms of antioxidant activity and sensory characteristics.

• Journal of the East Asian Society of Dietary Life
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• v.24 no.6
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• pp.853-861
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• 2014

Cookies, muffins and baguettes were formulated with Korean wheat flour and compared with those made from imported wheat flour in terms of total phenol content, antioxidant activity, and in vitro protein digestibility (IVPD). Chunnyencho and Honghawsi were added to improve quality of the bakery products. Addition of Chunnyencho did not show any significant improvement, whereas Honghawsi increased total phenol content of cookies. Total phenol content in 80% ethanol extract of muffins prepared with Korean wheat flour was 1.5 times higher than those made from imported wheat flour, whereas total phenol content was 1.2 times higher in the 80% methanol extract of baguettes prepared with imported wheat flour compared to those made with Korean wheat flour. Overall, total phenol content of Korean wheat flour was higher than that of imported wheat flour because total phenol content was higher in 80% ethanol extracts than in 80% methanol extracts. Antioxidant activity was not significantly different between ethyl acetate extracts of bakery products from imported wheat and Korean wheat, whereas antioxidant activity of 80% methanol extract of muffins with Korean wheat was 2.4 times higher than that from imported wheat. IVPD was not significantly different in any bakery products made from imported wheat or Korean wheat but was higher in baguettes than cookies or muffins. Conclusively, bakery products made from Korean wheat had higher total phenol content and antioxidant activity than imported wheat.