• Journal of the East Asian Society of Dietary Life
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• v.23 no.3
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• pp.365-373
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• 2013

This study is performed to investigate the quality characteristics of sulgidduk added with cheonnyuncho fruit powder. Sulgidduk was prepared with freeze-dried cheonnyuncho, rice flour, sugar syrup and salt. The sulgidduk was made with various amounts (0, 3, 6, 9, 12%) of added cheonnyuncho fruit powder. The proximate composition, pH, Hunter's color value, texture profile analysis, sensory characteristics and SEM of cheonnyuncho sulgidduk were being examined. The addition of cheonnyuncho fruit powder has a tendency to decrease the moisture contents of sulgidduk while the crude ash, crude lipid and crude protein increased. The pH of sulgidduk decreased when the amounts of cheonnyuncho fruit powder increased. As the amount of cheonnyuncho fruit powder increased, the lightness (L) decreased, while the redness (a) and yellowness (b) increased. In texture profile analysis, the hardness decreased with increasing cheonnyuncho fruit powder contents, whereas cohesiveness, springiness, gumminess and brittleness increased. The results of sensory evaluation showed that the sulgidduk with 3%, 6% of cheonnyuncho fruit powder got the highest scores on the color, taste, springiness and acceptability. The air cells of sulgidduk observed by SEM were big and uniform with the amount of cheonnyuncho fruit powder increased. In conclusion, these results show that the quality and preference increased when 3%, 6% of cheonnyuncho fruit powder was added to the sulgidduk.

• Korean journal of food and cookery science
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• v.26 no.6
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• pp.821-830
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• 2010

This study was carried out to investigate the quality characteristics and storage of wet noodle with added Cheonnyuncho powder. Wet noodles were prepared at concentration of 1, 3, and 5%(w/w) of the fruit based on flour weight. Moisture content of the noodles with or without Cheonnyuncho powder was 34~36%. Ca, K, Mg, Fe, Mn and Zn contents of Cheonnyuncho noodle were increased at increasing concentrations of Cheonnyuncho powder. Cooked weight, volume, and water absorption decreased with increased fruit powder, whereas turbidity increased. For hunter's color values of noodles, L(lightness) and b(yellowness) values decreased with increasing concentration of Cheonnyuncho powder, whereas a(redness) value increased. For mechanical characteristics of the noodles, adhesiveness, cohesiveness, chewiness, elasticity, and brittleness of cooked noodle with Cheonnyuncho powder were lower than those of control. The pH of Cheonnyuncho noodle was lower than that of control during storage. Bacterial counts of wet noodle with 1% and 3% fruit powders were lower than those of the control and 5% fruit powder on the 8th day of storage at $5^{\circ}C$. From the sensory evaluation, texture, taste, and overall preference were not significantly different between the control and fruit group, but the color of 5% Cheonnyuncho noodle was significantly higher than that of control (p<0.05). In conclusion, the results of this study suggest that the addition of 1% and 3% Cheonnyuncho powder in combination with flour tended to improve antimicrobial effects during storage when compared to control.

• Korean journal of food and cookery science
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• v.29 no.5
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• pp.501-509
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• 2013

This study shows the quality changes of Sulgidduk added Cheonnyuncho fruit powder during storage. Sulgidduk was prepared with freeze-dried Cheonnyuncho, rice flour, sugar syrup and salt. The Sulgidduk, which was made with various amounts (0,3,6,9,12%) of added Cheonnyuncho, was examined by the quality of duration during storage. The pH of Cheonnyuncho Sulgidduk decreased as the amounts of Cheonnyuncho fruit powder increased, and also showed a significant decrease as the storage increased. As the amounts of Cheonnyuncho fruit powder increased, lightness (L) decreased while redness (a) and yellowness (b) increased. During the storage period, the lightness (L) and yellowness (b) were increased, but redness (a) was decreased. In the texture profile analysis, the hardness and springiness were decreased with increasing Cheonnyuncho fruit powder, whereas cohesiveness, gumminess and brittleness were increased. However, the tendency of the changes of characteristics during storage was opposite except for springiness. In conclusion, it is suitable to extend the storage period of Sulgidduk added Cheonnyuncho fruit powder.

• Food Science and Preservation
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• v.22 no.6
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• pp.838-844
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• 2015

The purpose of this study was to perform a functional components analysis and investigate the physical properties of powders made from the stems or fruit of freeze-dried Cheonnyuncho cactus (Opuntia humifusa). The functional components analysis showed that the stem and fruit powders han vitamin C levels of 42.14 mg and 105.21 mg, respectively. The stems powder contained more lutein than the fruit powder. The fruit powder contained more vitamin C than the stem powder. The SDF (soluble dietary fiber) and IDF (insoluble dietary fiber) in the stem powder were 45.24% and 22.15%, respectively, which were higher then the values for the fruit powder. The stem and fruit powders contained 19.30 mg/g and 25.10 mg/g of crude saponin, respectively. The pH of the stem and fruit powders was 5.34 and 5.07, respectively, both indicating low acidity. The L, a and b values of the stem powder color were 78.28, -3.71, and 19.19, respectively. The L, a and b values of the fruit powder color were 55.56, 24.84, and -3.18, respectively. The stems powder had a higher bulk density, water holding capacity, and swelling power than those of the fruit powder, but water-retaining capacity of the stem powder was lower than that of the fruit powder. In addition, the stems powder had a higher viscous material content and water uptake compared to the fruit powder. Based on the above results, we determined that Cheonnyuncho (Opuntia humifusa) powder had potentially useful functional components and physical properties.

• Food Science and Preservation
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• v.23 no.1
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• pp.89-96
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• 2016

The purpose of this study was to investigate the chemical composition of the freeze-dried stems and fruit of the cactus Cheonnyuncho. The analysis showed that powdered stems have the highest fat content (1.91%) and the powdered fruits have he highest protein content (2.62%). The K content of the fruits higher than that of the stems, while the Ca, Mg, Na and P contents of the stems were higher than those of the fruits. Both the stems and fruits powders contained high levels of the amino acids glutamic acid and aspartic acid. The free sugars such as sucrose, fructose, and glucose were detected in both the stems and fruits. The 75% ethanol (EtOH) extract showed a relatively high antioxidative activity compared to those of the water and 75% methanol (MeOH) extracts. Furthermore, the 75% EtOH extract of the stem powder exhibited a total polyphenol content of 3.60 g/100 g, and a total flavonoid content of 2.00 g/100 g. The antioxidant activities of the stem and fruit powder extracts, measured in DPPH radical scavenging experiments, were higher than that of the control group.