Quality characteristic of cookies processed with hot water extract powder from masted safflower seed(RSHE) was investigated. Proximate compositions of RSHE were 4.7% of moisture, 32.6% of crude protein, 6.5% of crude ash. Composition of fatty acids(91.4%) were 77.14% of linoleic acid and 12.12% of oleic acid in RSHE. Glutamic acid, aspatic acid, arginine and glycine were major amino acids. Asparagine(12.69 ㎎/g) and arginine(1.13 ㎎/g) were contented high level in free amino acid of RSHE. The major minerals of RSHE were K(41.95 ㎎/g) and Mg(4.63 ㎎/g). 'L' value of cookies with RSHE were decreased, but 'a' value were increased. The breaking force and hardness of cookies with RSHE were higher than those of control. Thickness of cookies with RSHE were thicker than those of control and RSP(powder from roasted safflower seed). By sensory evaluation of cookies, appearance, taste, texture and overall acceptability score of cookie with 0.1% RSHE recorded first rank.
This study was performed to investigate the physicochemical properties of raw and roasted oats for the production of processed goods. Changes in particle size, pH, moisture content, Hunter b value, polyphenols, proteins, flavonoids, lipid rancidity, ${\beta}-glucan$ content and sensory evaluation were compared between raw and roasted hulled oats (HO) and de-hulled oats (DO) after heating treatment at 0, 80, 120, 160 and $200^{\circ}C$. HO was more finely crushed than DO. The Hunter b value of HO was lower than that of DO, which increased sharply at $200^{\circ}C$. The pH range was from 6.2 to 6.6, with an average value of 6.4. In contrast to the protein contents of the two oat types, polyphenol content showed gradual decrease as roasting temperature increased. A comparison of the flavonoid content of HO with DO, indicated difference in the increase of flavonoids with increasing temperature. The protein content of HO was observed to be higher than that of DO. Furthermore, the protein level was slightly increased with increasing temperature. Malonidialdehyde (MDA) content was statistically identical from $0^{\circ}C$ to $160^{\circ}C$, but then increased sharply at $200^{\circ}C$. As expected, the ${\beta}-glucan$ content of HO was higher than that of DO. The ${\beta}-glucan$ content of HO was decreased at $80^{\circ}C$, but increased from $120^{\circ}C$ to $200^{\circ}C$. In contrast, the ${\beta}-glucan$ of DO increased constantly compared to the control. Variations in sensory characteristics such as color, taste, smell and overall preference were observed. There were statistically significant difference among the sensory characteristics of the two oat types heated at $0^{\circ}C$ and $120^{\circ}C$ and at $160^{\circ}C$ and $200^{\circ}C$ (p<0.05). Our collective results, including those for particle size, MDA, protein, ${\beta}-glucan$ content and sensory evaluation, indicated that HO would be more useful in the development of processed goods than DO, and that an optimum temperature for roasting oats is approximately $160^{\circ}C$ for 15 min. Moreover, our results indicate that suitable roasting temperatures and cultivars are necessary to produce high-quality processed oat goods.
Park, Jun-Hong;Kim, Ki-Jae;Kim, Jae-Chul;Kim, Se-Jong;Park, So-Deuk
Korean Journal of Medicinal Crop Science
/
v.8
no.3
/
pp.194-200
/
2000
The main objective of this study was to characterize physico-chemical properties, sensory property and oxidative stability of safflower seed obtained by various roasting temperature and time. The contents of water soluble solids decreased in the higher roasting temperature and time. Sensory evaluation of safflower seed roasted in various conditions showed significant differences in taste, color, flavor and palatability. The safflower seed roasted at $190^{\circ}C$ for 20min had the best palatability. At the change of Hunter's values, L values were decreased, and a, b and ${\Delta}E$ values were increased in the higher roasting temperature and time. The content of free sugars such as sucrose and raffinose were reduced significantly in higher roasting time of $190^{\circ}C$ and $210^{\circ}C$. During the storage period after roasting treatment, peroxide values (POV) were highly increased after eight months at the all treatment except for $150^{\circ}C$. Therefore, it is inadequate over eight months after roasting treatment.
This study was carried out to evaluate the effect of the masting temperature on the phycochemical properties of the roasted Job's tears. Raw seeds were roasted for 20 min at 150, 170, 190, 210 or $230^{\circ}C$, were milled and extracted with hot water. The L and a values of the powder were sharply decreased or increased at the masting temperature of above $190^{\circ}C$, respectively. The b value was maximum at $190^{\circ}C$. Water absorption capacity of the powder and browning index of the extract were proportionally increasing with increasing the masting temperature. The pH of the extracts was decreased at the masting temperature of above $190^{\circ}C$. Total sugar content of the extract tended to be decreased until $170^{\circ}C$ and then be increased from $190^{\circ}C$. Content of phenolic compound of the extract was increased at the masting temperature of above $210^{\circ}C$. At the sensory evaluation of the extract, aroma and taste of samples masted at $170^{\circ}C$ and above $190^{\circ}C$, respectively were higher than those masted at the others. Overall acceptability of the extract was highest at $190^{\circ}C$.
Journal of the Korean Society of Food Science and Nutrition
/
v.26
no.3
/
pp.390-396
/
1997
Meju is a basis for manufacturing Kanjang, Meju was traditionally prepared at home by different types of process depending on the regional area. It is necessary to standardize and simplify the process of Meju-preparation for Kanjang of good quality. For these purposes, the process of Meju and Kangjang making as well as analysis of commercial Kanjang, were compared. Generally, traditional Meju was prepared by steeping and dehulling the whole soybean. After steeping for 24hr. soybean absorbed water up to 110~120% of its weight. The soaked soybeans were steamed for 2hr. and cooled to 5$0^{\circ}C$. Cooked soybeans were crushed down to the size of 10~15 mesh and molded. Molded soybeans were dried for 2 days in the air, hung up by rice straw and fermented for 20~30 days under natural environmental condition. On the other hand, commercial soybean koji was made of defatted soybean. Defatted soybeans were steeped in water and steamed for 15~30min at 0.7~1.2 kg/$\textrm{cm}^2$. Steamed and defatted soybean was cooled to 4$0^{\circ}C$. Separately, wheat power was roasted at 200~30$0^{\circ}C$ by wheat roaster. Mixture of steamed defatted soybean and roasted wheat powder (5/5 to 7/3) were inoculated with 0.1~0.2% Aspergillus sojae and incubated for 2 days at 3$0^{\circ}C$ with occasional stirring. Chemical analysis showed that traditional soy sauces contained the following composition: NaCl, 20.12~25.42%; total nitrogen, 0.64~0.91%; pure extract, 9.47~11.20%; color, 2.34~4.01; pH, 4.92~5.12. Commercial products contained: NaCl, 15.20~17.19%; total nitrogen, 1.25~1.40%; pure extract, 18.17~21.47%; color, 5.41~21.12; pH, 4.51~4.66 and ethalnol. 2.97~3.12%. Organoleptic test on taste, color and flavor of traditional and commercial soysauce indicated that most of the consumers prefer commercial products to traditional products. Preferrable formulation of Kanjang based on organoleptic test of soy sauces was assumed as containing; NaCl, 16.0%; total nitrogen, 1.40%; pure extract, 19.97%; color, 12.98; pH, 4.61 and ethanol, 2.96.
This study, observing each respectively packaged Kongdduk during 12-day storing period and comparing it with unpackaged Kongdduk, through a cross-sectional view of its fiber and temperament, through a sensory evaluation rheometer measurement of rheological change depending on storing period and packaging type and through the organic acid content, micro-organic change, and retrogressive process. The results are as follows: 1. Kongdduk made of bean oil shows better chewiness, cohesiveness, and moistness than Kongdduk made of bean flour while Kongdduk made of bean flour shows better rheological properties as to roasted nutty taste or roasted nutty order. 2. The test of the cutted loaves of Kongdduk shows that adding oil of proper proportion to the dough of steamed rice cake in accordance with the amount of rice flour has a good influence on rheological properties of softness. 3. Rice cakes were prepared by addition of yellow soybean flour or peanut flour and packaged with CMP or VP, and their physical characteristics were monitored by sensory evaluation and mechanical measurement while storing for 6 days. For VP samples, yellow soybean rice cake showed little changes in cohesiveness, moistness and chewiness for 6 days of storage, while pure rice cake and peanut rice cake showed an increase in strength and hardness from the 4th day of storage. In case of CMP, yellow soybean rice cake hardly showed a difference in cohesiveness, moistness and chewiness for 6 days, while pure rice cake and peanut rice cake showed a significant difference from the 4th day in sensory evaluation. 4. For rheometer measurement, yellow soybean rice cake with CMP or VP showed little changes in strength or hardness for 6 days, while peanut rice cake and pure rice cake showed a drastic decrease in cohesiveness, from the End day and adhesiveness from the 4th day of storage. As there was no remarkable difference or deterioration for 6 days of storage in yellow soybean rice cake between CMP and VP, the ingredients of rice cakeappeared to be more important than the type of packaging in terms of quality deterioration of rice cake. 5. As the storing period passed by, organic acid is detected less at CMP-packaged Knngdduk than at wrapped. and its increasing speed proves to be slower as well. 6. The one wrapped with plyethylene film began to get moldy from pure rice cake or Kongdduk (rice cake mixed with yellow soybean or peanut) after 6 days, and more and more modly after 9 daysor after 12 days, but the CMP-packaged ones didn't get modly until 12 days or more. 7. CMP-packaged Kongdduk showed higher enthalpy of retrogradation than PE-wrapped one. As storing Period Passed by, Kongdduk,s enthalpy grew high. That is to say, it shows that Kongdduk got retrograded.
This study was performed to evaluate the quality characteristics and antioxidant activity of sikhe prepared using various concentrations of hot water extracts roasted coffee ground residue (CR-sikhe; 0.2, 0.4, 0.6, 0.8, and 1.0%). The pH increased with increasing CR concentration. The reducing sugar content after 5 h saccharification was the highest when 0.8% CR extract was used. Total polyphenol and flavonoid contents increased in a concentration-dependent manner reaching maximum levels when 1.0% CR-extract was used. The antioxidant activities of CR-extracts were higher than that of the control and increased dose-dependently. The CR-0.6 showed the best taste (4.28), color (4.56), flavor (4.08), and overall acceptability (4.28). After 10 day of storage at $4^{\circ}C$, the total cell count in CR-sikhe was approximately 1-2 log cycle, which was less than that in the control.
Journal of the Korean Society of Food Science and Nutrition
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v.26
no.4
/
pp.632-638
/
1997
To develop the Instant Nuroong-gi in a short reconstitution time, we made puffed Instant Nuroong-gi samples and investigated their physicochemical characteristics. The Nuroong-gi was prepared using a Japonica variety with three different cooking conditions: steam cooker(process A), pressure cooker (process B) and cabinet cooker(process C). The Instant Nuroong-gi is produced by adding water to the Nuroong-gi which is broken into the size of 0.5~1.0cm. The amount of the added water is 40% of the weight of the broken Nuroong-gi. And it was puffed at 160~17$0^{\circ}C$ for 30 secands. The water binding capacity of Instant Nuroong-gi samples was 7.2 at process A, 6.5 at process B and 6.6 at process C. The total sugar content of Instant Nuroong-gi samples in hot water reached at the highest level at 3-minute cooking time. Through the sensory evaluation by a panelists, we discovered that Instant Nuroong-gi prepared by a steam cooker showed the highest roasted nutty taste, hardness, stickiness and overall acceptability. And Instant Nuroong-gi prepared by a pressure cooker showed the highest color, clearness, and roasted nutty flavor. Correlation coefficients between overall acceptability and other sensory attributes of Instant Nuroong-gi indicated that hardness had the most significant correlation to sensory evaluations. When we compared the results of color test with those of sensory evaluation of Instant Nuroong-gi prepared by three different cookers, we discovered that panelists preferred yellow Instant Nuroong-gi prepared by a pressure cooker. We found some morphological properties of Instant Nuroong-gi as a result of the comparison of the crystalization by a X-ray diffraction analysis and the observation of the shapes by a the scanning electron micrographs.
Journal of the Korean Society of Food Science and Nutrition
/
v.12
no.4
/
pp.382-386
/
1983
In order to utilize effectively sea mustard(Undaria pinnatifida) which is excellent in nutrition and medical action, powdered sea mustard juice was prepared and then its chemical composition and the stability of pigments were examined. Powdered sea mustard was made by washing fresh sea mustard with tap water to remove clay and sand, blanching at $85^{\circ}C$ for 20 sec in mixing solution(3% salt+1% $MgCO_3$), hot air drying($50-55^{\circ}C$, 3 hrs) after draining and pulverizing dried sea mustard to 200mesh. And then powdered sea mustard mixtures for juice type beverage was made by adding 0.75% of salt, 1.25% of sugar, 0.2% of ascorbic acid, 0.25% of flour of roasted barley and 0.8% of pulverized sea mustard to 100ml of water. Chemical composition of product was not scarcely changed during processing while amino-nitrogen content was increased and alginic acid and ash contents were decreased. The retention of chlorophyll and total carotenoid pigments of product against fresh sea mustard were 91.6% and 89.5% respectively. Judging from sensory evaluation, color, flavor, taste and dispersibility of powdered sea mustard juice were excellent and undesirable flavor of product was masked by addition of flour of roasted barley.
This study was carried out to investigate the changes in the biological activity and nutritional content of Flammulina velutipes, Grifola frondosa, and Sparassis crispa extracts after roasting treatment. Regarding biological activities, the DPPH radical scavenging activity was the highest in the extracts of air-dried G. frondosa, while the nitrite scavenging activity was significantly higher in the extracts of roasted S. crispa (p<0.05). The total polyphenol contents of F. velutipes and S. crispa were significantly increased by the roasting treatment compared with those in fresh samples (p<0.05). Regarding the amino acid composition of edible mushrooms, the content of sweet-taste amino acids, including serine (Ser) and alanine (Ala), increased in G. frondosa after roasting, whereas bitter amino acids, including decreased in roasted versus samples. Moreover, the contents of essential amino acids such as leucine (Leu), isoleucine (Ile), methionine (Met), valine (Val), and histidine (His) in F. velutipes and S. crispa were increased due to the roasting treatment (versus fresh samples). Thus, it was confirmed that the r method is effective in improving the nutritional content of edible mushrooms.
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