Kim, Seung-Heui;Choi, In-Myung;Han, Jeom-Wha;Cho, Jung-Gun;Son, In-Chang;Lim, Tae-Jun;Yun, Hea-Keun
Korean Journal of Soil Science and Fertilizer
/
v.44
no.5
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pp.722-726
/
2011
The management standard on soil conditions in 'Fuji' apple to produce high quality fruit were not yet made. Therefore, this study was carried out to investigate the optimum soil environmental conditions of ten contents on production of high quality fruit in 'Fuji' apple. The soil and fruit characteristics were analyzed at total 60 orchards in major apple producing areas such as Chungju, Moonkyeung, yeongju, andong, yeosan and yeongcheon (10 orchards an area). The soil environmental factors affected fruit weight was highest relative contribution in saturated hydraulic conductivity of 36.5%. The bulk density and soil pH were low as relative contribution. The fruit weight was influenced by soil physical properties more than soil chemical properties. The soil environmental factors affected sugar content were hydraulic conductivity of 28.3% and organic matter content of 18.2%. The cultivation layer depth and soil pH were low as relative contribution. The fruit coloring was highest relative contribution in saturated hydraulic conductivity 55.9%. while soil pH, cation and soil texture were low. Fruit coloring was high influenced over 70% by soil physical properties. Finally, relative contribution on fruit quality related with sugar content, fruit weight, and coloring were high influenced by saturated hydraulic conductivity of 21.% and organic matter content of 18.7% but bulk density and cultivation layer depth were low relative contribution. The fruit growth and saturated hydraulic conductivity in 'Fuji' apple were very closely related. Therefore, orchard soil management to produce high quality fruit was very importance drainage management and organic matter application. We concluded that scientific soil management is possible by qualifiable of soil management factors.
Kim, Moon Sup;Kim, Sea Hyun;Han, Jingyu;Kwon, Hae Yun;Song, Jeong Ho;Kim, Hyeusoo
Journal of Korean Society of Forest Science
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v.103
no.2
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pp.196-202
/
2014
In order to select superior trees based on fruit characteristics and provide basic informations necessary for their improvement, total 107 individual trees of Sorbus alnifolia (Sieb. et Zucc.) K. Koch were selected from 11 wild populations in South Korea. After collecting normal fruit branch, we investigated morphological characteristics of fruit and then considered its relationship among the 11 populations by multivariate analysis method. Results from principal compound analysis showed that it represented 85.8% accumulated explanation from five principal compounds. According to cluster analysis based on fruit characteristics, the natural S. alnifolia populations were classified into four groups and Mt. Mani population was different from other populations. Selection effect with outstanding candidate trees including superior 5 individual trees (Gwangyo 1, Gwangyo 2, Deogyu 7, Mani 29, Mani 30) was estimated at 122.8%, 115.5% and 182.7% in fruit width, length and yield per fruit bunch, respectively. The object of this results will give us invaluable information about breeding by selection of S. alnifolia in south Korea.
Kim, So-Hui;Choi, Gyeong-Lee;Choi, Su-Hyun;Lim, Mi-Young;Jeong, Ho-Jeong
Journal of Bio-Environment Control
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v.29
no.2
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pp.189-195
/
2020
This research was carried out to find the proper number of stem training and position of fruit setting that can be stably produced for the cultivation in small and medium types of watermelon during winter. The treatments for the number of stem training were 2-, 3-, 4-stems, respectively. Growth characteristics (plant height, stem diameter, no. of node, etc.) by number of stem training were higher in 2-stem than in 3-4-stem. However, Fruit characteristics such as weight, length, width were high in the 4-stem. There is no significant difference between the soluble solids and fruit setting rate depending on the stem training. The position of fruit setting were three points: 2nd, 3rd, 4th female flower positions. The fruit setting is one fruit per plant. The average fruit setting nodes of 2nd, 3rd and 4th female flowers were 11.5, 15.8 and 23.1 nodes, respectively. The 4th female flower was 0.8 kg heavier than 2nd female flower because of its increased weight as position of fruit setting was higher. However, the soluble solids decreased as the position of fruit setting increased, with the second female flower being 1.3°Bx higher than the 4th female flower. The Fruit setting rate was no significant difference. Considering the growth and fruit characteristics, it is believed that the small and medium-sized watermelon in winter will have a high quality production of watermelon when the stem training is 3-stem and the position of fruit setting is 3rd female flower. However, it is thought that additional studies are needed to stabilize the income of watermelon-growing farms, such as planting distance and adhesion of small and medium-sized varieties.
In this study, kiwi fruit, which has various medical actions and excellent functionality, was used together with gruels for comparison and analysis of to compare and analyze the changes in physico-chemical quality of a kiwi fruit-gruel according to the amount of kiwi concentrate added to the gruel. Analysis on the sensual quality of kiwi fruit-gruel spread was done to indicate to it was executed to find out the merchandising potential of the preparation and to provide basic data for gruel commercialization. Increasing content of kiwi concentrate decreased the solid content and pH of kiwi fruit, and increased sweetness and viscosity. Significant changes in chromaticity to L(lightness) and a(redness), texture qualities of hardness and cohesiveness, gumminess, springiness, color, flavor, sourness, and sweetness were evident with increasing kiwi concentrate. Concerning overall acceptability and sensory evaluation, 20% softness samples were most preferred. The findings may lead to enhanced medical/nutritional activity and functionality of kiwi fruit-supplemented gruel. The more the kiwi concentrate was added to the gruel, solid content and pH of the kiwi fruit-grue decreased. The sweetness and viscosity of kiwi fruit-gruel increased. For chromaticity to L(lightness) and a(redness) of the gruel decreased and showed significant difference between sample groups. For texture, there were significant changes shown for hardness and cohesiveness the amount of kiwi concentrate added was different, increased There was a significant change between samples for gumminess. As for springiness, there was a significant change between samples. There were significant difference between each sample for color, flavor, sourness, sweetness. For softness, overall-acceptability and sensory evalution 20% group was most preferred based on this study, from the physico-chemical and sensual perspective, 20% group is highly recommended for adding kiwi concentrate into gruel. In conclusion, this study is meaningful as it enhanced the functionality and quality of a gruel by combining kiwi fruit with various medical action and excellent functionality, with Kiwi Fruit and presented a basic material for creating a kiwi concentrate combined gruels.
Nutritional characteristics of mycelial growth and fruit-body formation of Flammulina velutipes in synthetic media were investigated. The results are summarized as follows: 1. Among sugar substances, mannitol gave rapid mycelial growth and formation of fruit-body with higher yield, and among organic acids only succinic acid showed the fruit-body but poorly. Ethyl alcohol and glycerol comparatively promoted the formation of the fruit-body with higher yield. 2. Among nitrogen sources, peptone resulted in rapid mycelial growth and fruit-body formation with higher yield. and among amino acids glycine gave fast fruit-body formation with higher yield. However. nitrite nitrogen, lysine and methionine showed no mycelial growth at all. 3. The concentration of substances tended to affect the fruit-body formation and yield. Lower concentration of mannitol and peptone prompted fruit-body formation but with low yields, and higher concentration delayed the fruit-body formation with increased yields.
In the present work, mulberry fruit extracts by four extraction processes, namely wet pressing extraction (WPE), hot-water extraction (HWE), enzymatic hydrolysis (EH), and lactic-acid bacteria fermentation (LBF) by Lactobacillus plantarum TO-2100, were analyzed for nutrients and functional compounds. The sugar contents of extracts by WPE, HWE, EH, and LBF were 12.0, 10.9, 14.5, and 14.3 brix, respectively, and the extraction yields by EH and LBF were 1.65 and 1.50 times higher than those by WPE. Among the organic acids, tartaric acid and malic acid contents were the highest in the extracts by WPE. Acetic acid was best extracted by LBF, and citric acid was best extracted by EH. Lactic acid was detected only in LBF. The extracts by EH showed the highest contents of all vitamins with an exception that the extracts by LBF showed the highest contents of the folic acid, vitamin B12, and vitamin C. We also noted that vitamin B group was not detected in the extracts by LBF. The extracts by EH showed the highest contents of all the amino acids, whereas LBF showed the lowest. Polyphenol contents of extracts by EH and LBF were 3.05 and 2.51 times more than those by WPE respectively. Anthocyanin contents were 7.66, 7.14 times higher for EH and LBF compare to WPE. We manufactured mulberry fruit granular teas with different compositions and tested them for their sensory characteristics. We found that 15% mulberry fruit extracts by enzymatic hydrolysis and 85% dextrin composition gave the most satisfactory result.
Eom, Hyun-Ju;Kwon, Nu Ri;Yoon, Hyang-Sik;Cheon, Seong Won;Kim, So-Young;Kim, Youngho
The Korean Journal of Food And Nutrition
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v.33
no.2
/
pp.159-166
/
2020
Melon is a fruit consumed and grown globally because of the sweet taste and pleasant aroma. The purpose of this study was to determine the quality characteristics and antioxidant activities of melon jams added with various fruits such as apple, aronia, blueberry, grape, kiwi, passion fruit, and peach. We determined quality characteristics such as pH, total acidity, antioxidant activity, content of total anthocyanin, polyphenol and tannin, respectively. The 100% melon jam as the control was the highest pH and lowest total acidity, whereas mixed jams with melon and passion fruit showed opposite results. The mixed jams with melon and aronia of the total anthocyanin, the polyphenol contents, tannin, and ABTS radical scavenging activities, were markedly higher than those of the control and other samples (p<0.001), followed by the mixed jams with melon and blueberry. In the taste sensing analysis, mixed jams with melon and passion fruit revealed higher richness and lower aftertaste-bitterness and aftertaste-astringency than the commercial strawberry jam and other samples. Thus, jams mixed with various fruits, in particular, aronia, blueberry, and passion fruit were superior to the 100% melon jam in terms of physiological activity and palatability.
In this study, to investigate the effect of fermented fruit wines on quality and sensory characteristics of beef jerky physicochemical properties and sensory evaluation were determined. Acidity of fruit wines were high in order of Kiwifruit wine>Pineapple wine>Red grapes wine>Pear wine. Aw and pH of beef jerky added fruits wine decreased slowly with the extended storage period and these trend were obvious in jerky added kiwifruit wine. Textural characteristics values of all beef jerky samples were increased according to the storage period was prolonged. At 4 weeks of storage, beef jerky-added Kiwifruit wine showed the highest value in chewiness. The L, a, b values of all beef jerky samples showed a tendency to decrease with the extended storage period, and beef jerky-added kiwifruit wine were the highest value in L, a, b, at 4 weeks of storage. TBA values of beef jerky-added kiwifruit wine, Chungju (S) and pear wine (P) were $0.51\;\cal{mg/kg}$, $0.71\;and\;0.78\;\cal{mg/kg}$ respectively. Total plate counts of bacteria of all beef jerky-added fruit wines were lower than those of Control (Con) and increased as storage period was prolonged and beef jerky-added kiwifruit wine were the lowest value $9.0\times10^{5} CFU/g$ at 4 weeks of storage. In the sensory evaluation, beef jerky-added fruit wines showed higher score than those of Control (Con), and All beef jerky samples got high score at 1 week' of storage. Beef jerky-added Kiwifruit wine showed high score in almost sensory items and especially in overall.
The new Rubus coreanus Miq. variety, 'Doo-Ryun', was selected from 227 clones of the clone bank. This breeding was progressed to select the superior variety for high productivity from 1998 to 2005. To evaluate the clones, characteristics of a fruiting lateral and a ripe fruit were investigated. 'Doo-Ryun' was finally selected through selection of three times and stable trial at four different regions. 'Doo-Ryun' has specific morphological characteristics that are fewer thorn in lateral and strong glossiness of leaf upper side than contrast clone. The flowing and fruiting characteristics of 'Doo-Ryun' shown that the number of flower per fruitng lateral, the number of fruit per fruiting lateral, fruit weight and yield per individual were 17.2, 16.9, 1.73g and 4.50kg, respectively. Also, their selection effects were evaluated as 103.6%, 107.6%, 140.6% and 155.7% compared to the mean of whole clones in the clone bank, respectively.
The cultivars of wine grapes 'Doonuri', 'Narsha', 'Cabernet Sauvignon', and 'Merlot' were cultivated in Modified-T (MT), Modified-T Cane pruning (MTC), and Geneva Double Curtain (GDC) trellises, and the changes in vine growth, fruit and wine characteristics were compared for two years (2018 and 2019). With respect to the vine growth characteristics, the wine grape cultivars cultivated in the GDC trellis were significantly inferior to those cultivated in the MT or MTC trellises. The grape yields of the cultivars cultivated in GDC trellise increased by 1.5 to 2 times cultivated in the GDC trellises compared to those cultivated in the other trellis, however, the fruit characteristics (total soluble solids, titratable acidity, and berry weight) did not differ among the differently cultivated groups. Moreover, the anthocyanin content and red color of the wine were significantly enriched in all red wine grape cultivars cultivated in the GDC trellises.
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