• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1997.05a
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• pp.1-4
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• 1997

멜론(Cucumis melo L.)은 서아프리카, 중근동, 인도, 중국등이 원산지로 알려져 있으며 유럽형 넷트멜론과 동양계 무넷트멜론으로 크게 분류되고 있다. 우리나라는 삼국시대부터 동양계멜론인 참외가 주로 재배되어 왔으나, 최근 국민소득수준의 향상과 더불어 고급 과채류에 대한 선호도가 높아짐에 따라 넷트 멜론의 재배가 증가되고 있는 추세이다. (중략)

• Applied Biological Chemistry
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• v.39 no.3
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• pp.200-205
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• 1996

This experiment was conducted to characterize and quantify the free sugars (glucose, fructose, sucrose, maltose) contained in many different portions of watermelon (Citrus vulgaris L.) and muskmelon (Cucumis melo var. reticulatus Naud.) fruits by High Performance Liquid Chromatography (HPLC). Free sugars were mainly fructose, glucose, sucrose, and their contents were variable among portions. Total free sugar contents were higher in the stylar end and side than in the stem end of both watermelon and muskmelon. Total free sugar contents increased from the periphery toward the central core in watermelon and except central core content seeds in muskmelon Ratio of nonreducing to reducing sugars [(fructose + glucose)/sucrose] was gradually decreased from the periphery toward the middle area in watermelon, though the central core showed higher value than the middle area. For the edible portion of muskmelon, the ratio was decreased toward middle area, and no significant difference was observed between the central core and the middle area. However, reducing sugars and nonreducing sugar were all increased from the periphery toward the central core in watermelon. In contrast with watermelon, reducing sugars were decreased in muskmelon.

• Mycobiology
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• v.38 no.3
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• pp.166-170
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• 2010

Gummy stem blight is a major foliar disease of muskmelon (Cucumis melo L.). In this study, morphological characteristics and rDNA internal transcribed spacer (ITS) sequences were analyzed to identify the causal organism of this disease. Morphological examination of the Jeonbuk isolate revealed that the percentage of monoseptal conidia ranged from 0% to 10%, and the average length $\times$ width of the conidia was 70 ($\pm$ 0.96) $\times$ 32.0 ($\pm$ 0.15) ${\mu}m$ on potato dextrose agar. The BLAST analysis showed nucleotide gaps of 1/494, 2/492, and 1/478 with identities of 485/492 (98%), 492/494 (99%), 491/494 (99%), and 476/478 (99%). The similarity in sequence identity between the rDNA ITS region of the Jeonbuk isolate and other Didymella bryoniae from BLAST searches of GenBank was 100% and was 95.0% within the group. Nucleotide sequences of the rDNA ITS region from pure culture ranged from 98.2% to 99.8%. Phylogenetic analysis with related species of D. bryoniae revealed that D. bryoniae is a monophyletic group distinguishable from other Didymella spp., including Ascochyta pinodes, Mycosphaerella pinodes, M. zeae-maydis, D. pinodes, D. applanata, D. exigua, D. rabiei, D. lentis, D. fabae, and D. vitalbina. Phylogenetic analysis, based on rDNA ITS sequence, clearly distinguished D. bryoniae and Didymella spp. from the 10 other species studied. This study identified the Jeonbuk isolate to be D. bryoniae.

• Korean Journal of Food Science and Technology
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• v.41 no.5
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• pp.536-540
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• 2009

The principal objective of this study was to develop a method to prolong the freshness and maintain the quality of muskmelon (Cucumis melo L.) treated with 1-methylcyclopropene (1-MCP). The rate of weight loss increased with storage time for all samples, but the rates were lower in the 1-MCP treated samples than in the control samples. The hardness of muskmelons treated with 1-MCP differed significantly from that of the controls. The soluble solid contents in the control were highest on day 4 at 15.1%, and evidenced a decreasing trend as the storage period elapsed. Conversely, the soluble solid contents of the 1-MCP-treated samples remained steady at 14% until day 16. The acidity of 1-MCP-treated samples was higher than that of the control over 10 days of storage. The respiration rate of the 1-MCP-treated samples increased less and was lower than that of the controls. Based on the results of our sensory evaluation, muskmelon treated with 1-MCP gas remained fresh for more than 25 days, whereas the control samples remained fresh for only 13 days.

• Food Science and Preservation
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• v.18 no.5
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• pp.636-642
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• 2011

The chemical components of four muskmelons (Thankyou, Beauty, Picnic, and Symphony), according to the cultivars, were investigated during storage at $7^{\circ}C$ for 28 days. After the storage period, the Picnic cultivar indicated a weight decrease of up to 4.70% whereas the Symphony cultivar showed the best weight maintenance during storage (1.02%). The Thankyou and Symphony cultivars had higher sugar content and acidity levels than the Beauty and Picnic cultivars during storage. While the Symphony and Beauty cultivars showed high hardness at the start of their storage, their hardness decreased much during storage while the Thankyou and Picnic cultivars showed little change in hardness during storage. Further, the Thankyou cultivar not only maintained its unique muskmelon yellow color but also showed lower microorganism growth than the other cultivars. The stem water loss seen in this cultivar, however, tends to be the first thing seen by the consumers and may thus determine its merchantable quality. In addition, as the Thankyou cultivar showed the least quality change during storage, it will be useful for the development of a technology for minimizing the moisture content of a muskmelon's stem.

• Horticultural Science & Technology
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• v.19 no.3
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• pp.338-341
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• 2001

A new passive nutrient supplying system (PNS) was designed. The experiment was conducted to compare PNS with automatic hydroponic system (AHS) by investigating the growth characteristics of muskmelon (Cucumis melo L.) in spring and summer. No significant differences in growth characteristics of leaf area and shoot dry weight were observed between PNS and AHS. However, better netting of melon fruit was shown in PNS. Sugar content of melon fruit was also $1.0-2.0Brix^{\circ}$ higher in PNS than in AHS. The suitable substrate for melon culture with PNS was the mixture of perlite 70% and rice hull 30%. These results suggested that new PNS could be introduced to growers without any loss of fruit yield and quality of muskmelon.

• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 2003.10a
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• pp.166-166
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• 2003

Muskmelon(Cucumis melo L.)은 독특한 향기와 높은 당도로 각광받고 있는 과일로 주로 지중해, 아시아, 북유럽과 미주지역에서 광범위하게 재배되고 있으며 우리나라에서는 주로 시설 내에서 재배되고 있다. 점차 그 수요가 증가하고 있는 fresh-cut제품은 유통, 저장 기간 동안 제품의 신선함 유지가 요구된다. 본 연구에서는 가공 전 열처리가 fresh-cut muskmelon의 품질에 미치는 영향과 최적 열처리 조건을 조사하였다. Half-cut melon을 대상으로 blanching 온도 설정을 위한 예비 실험을 한 결과 5$0^{\circ}C$ 열처리한 구가 향, 연화 저해 정도, 그리고 전체적인 기호도에 대한 관능평가 가장 우수하였다. 이를 바탕으로 5$0^{\circ}C$의 water bath상에서 whole melon을 10, 20, 30, 40분 blanching하여 5$^{\circ}C$에서 24시간 저장한 후 cork borer를 이용하여 cylinder 형의 fresh-cut melon을 가공하였다. 가공한 melon은 5$^{\circ}C$에서 6일 저장하면서 L-value, chroma-value, soluble solid, pH, 경도, 호흡 변화 등을 통해 품질변화를 측정하였다. 저장 6일후 L-value의 변화는 대조구에서 가장 크게 나타났으며, chroma-value는 저장 시간이 경과함에 따라 감소하였으며 10분 열처리 한 구에서 변화정도가 가장 낮게 나타났다. 수용성 고형분 함량은 저장기간의 경과에 따른 큰 변화는 없었으나 40분 열처리한 구에서 수용성 고형분 함량이 가장 낮았으며 20, 30분 열처리한 구에서 높게 나타났다. 저장 중 fresh-cut melon의 pH는 증가하는 경향을 보였으며 10분 열처리한 구에서 가장 낮게 나타났다. 호흡변화는 저장 기간이 경과함에 따라 $O_2$는 감소하고 $CO_2$는 증가했으며 특히 20분 열처리한 구에서 $CO_2$가 크게 증가한 것으로 나타났다. 증가 정도가 가장 크게 나타났다. 열처리한 fresh-cut melon의 hardness는 저장 3일 후 대조구와 40분 열처리 구에서 가장 낮아 연화현상을 확인했으며 20분 열처리구에서 초기 hardness가 유지되는 것으로 확인했다. 따라서 fresh-cut melon을 위한 가공 전 열처리를 위해서는 5$0^{\circ}C$에서 10분 열처리가 품질 변화를 유지하는데 적당하다고 판단된다.

• Korean Journal of Food Science and Technology
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• v.41 no.3
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• pp.251-257
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• 2009

The effects of temperature variations during storage on the quality characteristics of muskmelons (Cucumis melo L.) were investigated. In samples stored at $4^{\circ}C$ and $10^{\circ}C$, weight losses were almost 2.9- and 3.4-fold higher, respectively, compared to samples stored at $0^{\circ}C$. Soluble solids slightly increased except in the samples stored at $10^{\circ}C$, but acidity decreased over the entire storage period. Firmness decreased with storage time, but the samples stored at $0^{\circ}C$ had a lesser decrease in firmness than the samples stored at other temperatures. Water loss from the muskmelon stalk was most inhibited, and vitamin C content was maintained for the longest period, with storage at $4^{\circ}C$. Mineral contents (Ca, Na, Fe, Mg, K) were best maintained in muskmelon samples stored at $10^{\circ}C$ for 15 days, but levels had decreased by 30 days. Microbiological quality was not appreciably different at any storage temperature at 18 days; however, samples stored at $4^{\circ}C$ and $10^{\circ}C$ had deteriorated by 25 days. The results of sensory evaluations indicated that taste was best retained in samples stored at $10^{\circ}C$ for 15 days, although changes in taste were evident at all storage temperatures. When the samples were stored over 22 days at $10^{\circ}C$, retention of texture and overall acceptability were more inferior compared to samples stored at $0^{\circ}C$ and $4^{\circ}C$. These results suggest that storage at $4^{\circ}C$ can be used to reduce deterioration in muskmelons without significant loss of their quality attributes.

• Journal of Bio-Environment Control
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• v.21 no.4
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• pp.348-353
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• 2012

This study was conducted to figure out the possibility of non-drainage in muskmelon (Cucumis melo L.) hydroponics culture. Plants were grown under 3 different levels of drainage, standard (20~40%, SD), minimum (5~10%, MD), and non-drainage (ND). Throughout cultivation periods, constant water content and electrolyte conductivity changes in root zone were observed in SD in the range of 60~70% and $1.5{\sim}2.5dS{\cdot}m^{-1}$, respectively. ND treatment caused the fluctuation in water content and electrolyte conductivity of root zone and its change ranges were 30~50% in water content and $2{\sim}6dS{\cdot}m^{-1}$ in electrolyte conductivity, but ND treatment did not decrease fruit quality. Even if fruit fresh weight was slightly lower in ND with 1,863 g, than in SD with 1,990 g, the fruit weight in ND meets standard market size, 1,800~2,000 g. Higher soluble solids content was observed in fruit in ND than in SD and MD. Total amount of drainage per plant was 27,718, 15,769 and 2,346 mL in SD, MD and ND, respectively. SD showed $83.2m^3$ drainage, 34.5% drainage of irrigation amount whereas required total irrigation amount in ND was very low with $7m^3$.

• Korean Journal of Food Science and Technology
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• v.42 no.3
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• pp.368-372
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• 2010

Changes in the quality characteristics of muskmelon were analyzed by treating samples with 500, 1,000, and 1,500 ppb 1-MCP every 4 days and then storing the samples at $10^{\circ}C$. The weight losses of the MCP treated samples were lower than those of the control, while there were no differences in the concentrations among treatments. The firmness was maintained at a higher value in 1-MCP treated samples than the control during the storage period and showed the highest value in the 1,000 ppb treatment. The L-values (brightness of samples) in the 500 and 1,000 ppb treatments were kept constant during the storage period, while that of the control showed a decreasing trend after four days of storage. The bvalues and yellowness, were decreased after showing an increasing trend in both treatments and the control as the storage period passed. The respiration rates of 1-MCP treated samples were lower than the control, with the lowest value being observed in the 1,000 ppb treatment. The texture observed upon sensory evaluation was higher and freshness was maintained longer in the 1,000 ppb treatment. Therefore, 1,000 ppb 1-MCP was considered to be the most effective concentration for treatment of muskmelon.