Journal of the Korean Applied Science and Technology
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v.36
no.1
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pp.1-12
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2019
After making tea by steaming the Artichoke(Hellanthus tuberosus) nine times and drying them nine times, the ingredients and functions of the Artichoke tea were compared to those of M. It had 342.27kcal/100g in its own deloped Artichoke tea, 73.87g/100g of carbohydrates, 6.80g/100g of crude ash and 8.21g/100g of crude protein. The total of free sugars were 32.66mg/100, among them, fructose 17.40, sucrose 9.03 and glucose 6.05 mg/100g. The total mineral contents of the developed tea was 2,785.67mg/100g. It was 2,563.93mg/100g of potassium, 97.52mg/100g of calcium and 88.78mg/100g of magnesium. The saturated fat of Artichoke tea was 30.34mg/100g and unsaturated fat was 69.66mg/100g, among which the linoleic acid was 47.0mg/100%, palmitic acid was 25.31mg/100% and linolenic acid was 8.61mg/100g. DPPH radical scavenging was 34.2% of teas that were developed, 5.2% of M's for comparison, and 44.0% of index materials. ABTS radical scavenging was 93.0% of teas developed, 61.9% of M's tea and 47.6% of index materials, and SOD like activity was 2.7% of teas developed and 1.6% of M's tea. The flavonoid content was 2.8 fold of the tea developed, 2.0 fold of M's tea and 1.7 fold of index material. The polyphenol content was 38.2 fold, 8.92 fold of M's tea and 14.0 fold of index material. The inhibition rate for ${\alpha}$-glucosidase was 9.83% teas developed and 8.92% of M's. The sensory evaluation compares to the one time extract and the five time extract. Based on the one-time extract, color of tea developed was 83.7%, the M's tea was 50.0%, the flavor was 78%, M's tea was 42.5%, the delicate taste was 66.7% of teas developed and M's tea was 37.5% and the overall acceptability was 73.3% of teas developed, M's tea was 47.5%. The comparison of M's tea showed that the extract decreased as we made it, and the overall symbol level decreased to 46.3% after five time-extyracts, while that of the developed tea decreased to 73.3%. The Artichoke tea developed this way is believed to have greater antioxidant function, higher effective substance content, and a higher affinity than M's tea an index material for comparison purposes.
Ko, Gyeong-A;Koh, So Yae;Ryu, Ji-yeon;Cho, Somi Kim
Journal of Applied Biological Chemistry
/
v.60
no.2
/
pp.161-171
/
2017
This study was aimed to evaluate and compare the proximate composition, antioxidant and antiproliferative activities of Sageretia thea (Osbeck) M.C.Johnst (S. thea) fruit and blueberry. The calorific value, crude protein, crude fat, crude ash, and carbohydrate were higher in S. thea fruit than in blueberry. S. thea fruit and blueberry have different profile of free sugars, in which amounts of fructose, glucose, and maltose were much higher in S. thea fruit than in blueberry. The methanol extracts of S. thea fruit contain higher amounts of total polyphenol and anthocyanin compared to those of blueberry extracts. In additions, 2,2-diphenyl-1-picrylhydrazyl (DPPH), alkyl, and 2,2'-azinobis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activities are greater in S. thea fruit extracts. Ethyl acetate fractions and n-butanol fractions of S. thea fruit and blueberry show the most potent scavenging activity in DPPH-, alkyl-, and ABTS-radical scavenging assay. The ethyl acetate fractions of S. thea fruit and blueberry are the richest fraction in polyphenol contents while the n-butanol fractions of those are the highest fraction in anthocyanin contents. Furthermore, both S. thea fruit and blueberry extracts protect human dermal fibroblast cells against a $H_2O_2$-induced oxidative stress. The antiproliferative activities of n-hexane and chloroform fraction from S. thea fruit and blueberry were observed in AGS human gastric cancer and MDA-MB-231 human breast cancer cells. Therefore, our results suggest for the first time that the antioxidant and antiproliferative activities of S. thea fruit is comparable to that of blueberry and the nutritional value of the former is even superior to that of the latter.
Kim, Dong-Hwan;Moon, Jae-Nam;Lee, Seul;Lee, Soo-Won;Moon, Hey-Kyung;Kim, Gwi-Young
Food Science and Preservation
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v.23
no.4
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pp.591-598
/
2016
The purpose of this study was to screen desirable yeast strains for alcoholic fermentation of tomato paste without sugar addition. The moisture, crude protein, crude fat, ash, and soluble nitrogen contents of the tomato paste ($25^{\circ}Brix$) were found to be 67.33%, 1.90%, 0.03%, 0.02%, and 30.72%, respectively. Free sugars found in the paste were fructose and glucose. Most abundant free amino acids of the paste were glutamic, aspartic, and ${\gamma}$-aminobutyric acids. Total seven yeast strains (Saccharomyces cerevisiae KDH (TWA), S. cerevisiae Lalvin ICVD-47 (TWB), S. cerevisiae Lalvin RC-212 (TWC), S. cerevisiae Lalvin K1-V1116 (TWD), S. bayanus Lalvin EC-1118 (TWE), S. cerevisiae Enoferm (TWF), and S. cerevisiae DJ97(KCTC8842P) (TWG)) were tasted for alcohol fermentation of the tomato paste. The highest alcohol content (8.2%) and the lowest residual sugar content ($13.25^{\circ}Brix$) were observed in the tomato paste fermented using the S. cerevisiae Lalvin ICVD-47 strain (TWB) after 3 day and 4 day of fermentation, respectively. Sugar and reducing sugar contents, and pH of the tomato paste were not remarkably affected by the difference in yeast strains used, showing $13.25{\sim}13.45^{\circ}Brix$, 28.37~28.48 mg/mL, and 4.43~4.54, respectively, after 4 day of fermentation. Color and total acid content were significantly affected by the types of yeast strains and fermentation time, but the numerical changes were negligible. These results indicate that TWB would be the suitable strain for alcoholic fermentatiom of tomato paste based on its highest alcohol production and the lowest residual sugar content produced during fermentation.
Journal of the Korean Society of Food Science and Nutrition
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v.45
no.7
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pp.980-989
/
2016
In the present study, we compared and investigated the nutritional compositions of Amaranthus cruentus and Amaranthus hypochondriacus baby-leaves cultivated in Korea. Baby-leaves of two amaranthes consisted of more than 92% moisture, and A. cruentus contained a higher amount of moisture than A. hypochondriacus. Meanwhile, A. hypochondriacus contained higher levels of crude ash, crude protein, crude lipid, carbohydrates, and dietary fiber than A. cruentus. The major free sugars of the two amaranth baby-leaves were fructose and glucose. Fructose content of A. hypochondriacus was higher than that of A. cruentus, and glucose content of A. cruentus was higher than that of A. hypochondriacus. Acetic acid, malic acid, and fumaric acid were detected in two amaranth leaves, but succinic acid was not detected. Two amaranth leaves contained 17 amino acids except for methionine, proline, and tyrosine, and leaves contained the highest glutamic acid contents. In addition, A. cruentus and A. hypochondriacus leaves contained high contents of taurine and ${\gamma}$-aminobutyric acid and showed various biological activities. The major mineral and fatty acid of the two amaranth leaves were potassium and linolenic acid (C18:3), respectively. The ${\beta}$-carotene contents of A. cruentus and A. hypochondriacus leaves were $478.72{\mu}g/100g$ and $474.12{\mu}g/100g$, respectively. In vitamin B complex, $B_2$, $B_3$, and $B_5$ were detected in the two amaranth leaves whereas vitamins $B_1$, $B_6$, and $B_{12}$ were not detected. A. hypochondriacus contained higher amounts of vitamin C and E than those of A. cruentus. Overall, amaranth leaves contained high amounts of nutritional components. Therefore, amaranth leaves are expected to be useful for the development of a functional food. Moreover, these results will provide fundamental data for advancing sitological value, breeding new cultivars, and promoting leafy vegetable usage.
Journal of the Korean Applied Science and Technology
/
v.36
no.1
/
pp.23-33
/
2019
After making tea by steaming the Burdock(Arctium lappa) nine times and drying it nine times, the ingredients and functions of the Burdock tea were compared to those of M company. The tea's calories were 346.48kcal/100g, carbohydrates were 72.75g/100g, crude protein was 11.98g/100g, and crude ash was 5.01g/100g. The total of free sugars were 31.93mg/100, among them, fructose was 26.27, sucrose was 1.27 mg/100g. The inorganic material contents were 1,476.21mg/100g of potassium, 255.96 mg/100g of calcium and 311.41 mg/100g of magnesium. The saturated fatty acids were 40.73mg/100g and the unsaturated fatty acids were 59.27mg/100g, among which the linoleic acid was 41.28mg/100g, the palmitic acid was 33.11mg/100g, the oleic acid was 10.07mg/100g and linolenic acid was 7.92mg/100g. DPPH radical scavenging was 33.9% of teas that were developed, 2.3% of M's tea for comparison, and 37.2% of indiex material. ABTS radical scavenging were 90.7% of teas developed, 85.9% of M's tea and 37.2% of index materials, and SOD like activities were 11.3% of teas developed and 50.5% of M's teas. The flavonoid content was 2.6 fold of the tea developed, 2.9 fold of M's tea and 1.7 fold of index material. The polyphenol content was 33.8 fold of teas developed, 38.9 fold of the M's tea and 13.8 fold of the index material. The sensory evaluation compare to the one-time extract and the five-time extract. Based on the one-time extract, the color were 65.9 % of the five-time extract tea were developed, 12.8 % of the M's tea. Flavour were 78.0% of the tea developed and 33.3% of the M's tea, tastes were 71.4% of the tea developed, 20.7% of the M's tea. The cart for comparison showed that while the extract decreased as we developed it, the overall symbolism decreased to 21.4% after five time extracts, the developed tea decreased to 72.1%. We believe that the developed tea will have a greater effect on preventing and improving diseases as it has a stronger antioxidant function, more effective substances, and a higher level of symbolism than the comparative M squared tea and surface substance.
The overall objective of this study was to improve tomato fruit quality, while maximizing yield. The variety of 'Momotaro' was grown in the basic nutrient solution of 1.6 dS.m$^{[-10]}$ which was supplemented by three levels of seawater with EC 1.0, 2.0 or 3.0 dS.m$^{[-10]}$ . Tomato plants were cultivated in cool seasons. Plant growth characteristics were compared between treatments, and fruits were classified to analyse fruit quality characteristics according to ripening stages: MG, Br, Br+3, Br+5, Br+7 and Br+10. Adding seawater generally did not affect the shoot growth parameters such as plant height, leaf length, leaf width, internode length and chlorophyll content. Adding seawater negatively affected yield parameters such as the height and weight of fruit, marketable fruit weight per plant and marketable fruit yield. Therefore, the more yield reduction was obtained with the increasing level of seawater treatment. Fruit quality was improved by seawater treatment. The degree of the effect for $^{\circ}$Bx degree and sugars were the highest with the EC of seawater 2.0~3.0 dS.m$^{[-10]}$ , and at the Br+5~Br+7 of ripening stages. The relative abundance of tomato flavor, volatile components, was not generally affected by the seawater treatment with an exception of 6-methyl-5-hepten-2-one. The relative abundance of most volatile components increased as ripening progressed. The increment began at the Br stage and showed the highest increment at the Br+5~Br+7 stages. The results from these experiments suggest that seawater treatment of EC 3.6 dS.m$^{[-10]}$ for hydroponics is good for improving tomato quality. Fruit quality is the best at the Br+5~Br+7 ripening stages. It is considered that these results may be applied far use in hydroponic culture to improve fruit quality with minimum yield reduction.
Journal of the Korean Society of Food Science and Nutrition
/
v.44
no.8
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pp.1200-1205
/
2015
Medical foods are enteral nutrition for patients, but they cause maladaptation symptoms like diarrhea. Although the cause of diarrhea remains unknown, some studies have indicated that the cause of diarrhea is fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (FODMAP). This is a consideration for medical foods since they are easily fermented by intestinal bacterial. In this study, we estimated the FODMAP contents of commercial medical foods and carbohydrate ingredients. We measured the concentrations of FODMAP in 13 types of different medical foods and five types of carbohydrate ingredients by using high performance liquid chromatography with an evaporative light scattering detector (HPLC-ELSD). The limits of detection of FODMAP were fructose, 0.002; lactose, 0.010; raffinose, 0.003; stachyose, 0.032; 1-kestose, 0.005; nystose, 0.012; and 1-fructofuranosylnystose, 0.003 mg/kg. Limits of quantitation of FODMAP were fructose, 0.008; lactose, 0.033; raffinose, 0.009; stachyose, 0.107; 1-kestose, 0.015; nystose, 0.042; and 1-fructofuranosylnystose, 0.011 mg/kg, respectively. Concentration of FODMAP ranged from 0.428~2.968 g/200 mL. Concentrations of carbohydrate ingredients in FODMAP were chicory fiber, 278.423; soy fiber, 27.467; indigestible maltodextrin, 52.384; maltodextrin (DE10~15), 32.973; and maltodextrin (DE15~20), 50.043 g/kg. Contents of carbohydrates were 19.0~41.0 g/200 mL in commercial medical foods. We expected a correlation between contents of carbohydrates and FODMAP, as carbohydrates included FODMAP. However, we detected a low correlation (r=0.55). Since most commercial medical foods have a similar carbohydrate ingredients and nutritional values, the difference between products was determined by FODMAP contents of carbohydrate ingredients. In this study, we analyzed FODMAP contents of commercial medical foods and carbohydrate ingredients. These results are expected to be utilized as basic data for product development and minimizing maladaptation of medical foods.
This study was done in order to investigate the bioconversion of ginsenoside, as well as the quality characteristics of fermented ginseng, by using lactic acid bacteria. Quality characteristics such as the thin layer chromatography(TLC) pattern, ginsenosides, total phenolic content, electron donating ability, and total sugar of fermenting ginseng and red ginseng were analyzed. The ginsenoside Rg2r, Rh2s and Rh2r of the fermented ginseng and red ginseng for 65 hours at a temperature of $37^{\circ}C$ were not detected. The ginsenoside Rg1 and Re contents have decreased, while the Rh1, Rg2s, Rd, Rg3r, and Rg3s have increased due to fermentation. The ginsenoside Rg3 of the fermented red ginseng has increased and the contents were $114.83{\sim}131.68{\mu}g/mL$ (control $104.56{\mu}g/mL$). The total phenolic content and electron donating ability of the red ginseng have totally decreased after 7 days of fermentation. The total phenolic contents of the fermented ginseng and red ginseng with different lactic acid bacteria did not show any tendency as different strains. The electron donating ability of the fermented ginseng has increased; however, the electron donating ability of the red ginseng has decreased. The total sugars of the fermented ginseng and red ginseng with different lactic acid bacteria have also decreased.
Reflux extraction properties of Schisandra chinensis were investigated with different extraction conditions of ethanol concentration (0-99%), extraction time (2-8 h), and extraction temperature ($40-100^{\circ}C$). Different chemical properties, such as reducing sugars (RS), titratable acidity (TA), Hunter's color values, total phenolic compounds (TPC), and antioxidant activity (DPPH and ABTS assays) were analyzed for the corresponding extracts. The results showed that RS and TA increased as the extraction temperature increased. For each parameter, the maximum value was achieved, when extraction was carried out with 50% ethanol for 8 h at $100^{\circ}C$. Redness ($a^*$) of the extract decreased as all 3 extraction parameters were increased. TPC increased significantly as the extraction time and temperature increased; further, the highest TPC was achieved, when extraction was carried out with 50% ethanol. The same tendency was observed for DPPH and ABTS radical scavenging activities. The highest TPC and antioxidant activity were obtained, when extraction was carried out with 50% ethanol for 4-6 h at $60-80^{\circ}C$, respectively.
Yoon, Young Mi;An, Gi Hong;Kim, Jung Kon;Ahn, Seung-Hyun;Cha, Young-Lok;Yang, Jungwoo;Yu, Kyeong-Dan;Moon, Youn-Ho;Ahn, Jong-Woong;Koo, Bon-Cheol;Choi, In-Hoo
KSBB Journal
/
v.29
no.5
/
pp.316-322
/
2014
Xylanase have been used to convert the polymetric xylan into fermentable sugars from the production of ethanol and xylitol from plant biomass. The aim of this study was to isolate and identify xylanolytic bacterium from herbivore feces and was to used the xylanase for enzymatic hydrolysis of biomass. Xylanolytic strains were isolated from 59 different feces of herbivores from Seoul Grand Park located in Gwacheon Gyeonggi-do. The xylanolytic strains were selected by congo red staining and DNS method. Total 67 strains isolated from the herbivores feces were tested for xylanase activity. Among the strains, H10-1, which has the highest xylanase activity, was isolated from feces of Ceratotherium simum. The H10-1 strain was identified as Bacillus pumilus based on its morphological/biochemical characteristics and partial 16S rDNA gene sequences. Culture conditions of B. pumilus H10-1 such as initial medium pH, incubation temperature and incubation time were optimized for maximum xylanase production. And also xylanase produced by B. pumilus H10-1 was applied for the saccharification of Miscanthus sacchariflorus cv. 'Geodae 1', which was pretreated with 1.5M NaOH. The optimized culture conditions of B. pumilus H10-1 were pH 9, $30^{\circ}C$ incubation temperature, and 7 day incubation time, respectively. This xylanase activity under the optimized conditions was $20.4{\pm}3.3IU$. The crude xylanase produced by B. pumilus H10-1 was used for the saccharification of xylan derived from pretreated 'Geodae 1'. The saccharification conditions were $50^{\circ}C$, 200 rpm, and 5 days. Saccharification efficiency of pretreated 'Geodae 1' by B. pumilus H10-1 was 8.2%.
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