• 동아시아식생활학회지
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• 제10권1호
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• pp.37-41
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• 2000

Physiocheical properties and chemical compositions of two plums(Oishiwase, Formosa ) produced in Kimcheon area were investigated . Chemical compositions of two plum cultivars were similar except nitrogen free extract(NFE) . NFE value of Formosa was higher than Oishiwase . Alcohol insoluble substance content, total soluble pectin, total sugar content and total organic acid content of Oishiwase were 2.08%, 14.16%, 5.07% and 949.16mg%, respectively. In case of Formosa cultivar, those were 50%, 15.42%, 5.91% and 985.91mg%, respectively. Fructose content among free sugars of two plum cultivars range from 3.97-3.45% and the other were glucose, sucrose and inositol, 1.83-1.53%, 0.08-0.05% and 0.04-0.03%, respectively. Malic acid content was 35-373mg% and others were levulinic acid, lactic acid, citric acid, succinic acid and fumaric acid in the decreasing order.

• 동아시아식생활학회지
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• 제23권2호
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• pp.197-202
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• 2013

The objective of this study is to evaluate the anti-cancer and anti-inflammatory activities of plum (Formosa, Oishiwase, Soldam) for the future development of functional food products. To determine the anti-inflammatory effect of different types of plums, the inhibitory effect of plum extracts on nitric oxide (NO) production were measured in lipopolysaccharide (LPS)-stimulated Raw 264.7 mouse macrophage cells and human cancer cell lines (A549, Ags, Hela, Hep3B). Among the three different plum cultivars, Oishiwase at a concentration of 1 mg/mL showed the highest inhibitory effects on NO production (%) in Raw 264.7 macrophage cells. Moreover, Oishiwase exhibited a higher anti-cancer activity against A549 (renal carcinoma, 50%), Ags (gastric carcinoma, 35%), HeLa (cervical carcinoma, 50%), and Hep3B (hepatocellular carcinoma, 31%) at a concentration on 1 mg/mL, respectively, compared to Formosa and Soldam. Our findings suggest Oishiwase plum extracts may serve as potential dietary sources of natural health promoting substances.

• 동아시아식생활학회지
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• 제17권5호
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• pp.710-718
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• 2007

This study was designed to investigate the effects of plum(Prunus salicina Lindl. cultivars 'Oishiwase', 'Formosa', and 'Soldam') extracts on the proliferation as well as inhibition of human epithelial cells(HaCaT), human cervical carcinoma (HeLa, SiHa, and C33A) cells, and human stomach adenocarcinoma(SNU 638) cells. Dried plum was sequentially extracted and fractionated by hexane(KC-01), chloroform(KC-02), ethyl acetate(KC-03), n-butanol(KC-04), water(KC-05), methanol(KC-6), and hot water extract(KC-07). The epithelial and cancer cells were exposed for 48 h to $50{\mu}g/mL$ of plum extract in vitro, and were then analysed by a sulforhodamin B(SRB) staining assay. The methanol extract(KCP-6) of 'Formosa' proliferated not only the HaCaT cells(147.3%), but also the cervical carcinoma C33A cells(167.8%). The ethyl acetate extract of 'Soldam'(KCJ-3) significantly reduced the proliferation rate of the HPV positive conical carcinoma cells, at 61.5% for the SiHa cells and 70.5% for the HeLa cells. In the C33A cells, which are HPV negative cervical carcinoma cells, the hexane fractions of 'Formosa'(KCP-1) and 'Oishiwase'(KCD-1) markedly suppressed proliferation activity at 20.4% and 61.7%, respectively. However, the proliferation rate of the normal epithelial cells(HaCaT cell) was not reduced the proliferation rate by KCJ-3, KCP-1, or KCD-1, There were no significant effects on proliferation of the stomach cancer cells(SNU 638) by any of the extracts or fractions of the plum cultivars. These results suggest that the anti-proliferative effects of the plum cultivars were selective to the cancer cell origin. In conclusion, we found that several plum cultivar extracts, especially, the ethyl acetate fraction of 'Soldam" and the hexane fraction of "Formosa', have anti-proliferative activity toward human cervical carcinoma cells. However, further investigation is needed to assess the molecular mechanisms that mediate the antiproliferation activities of the plum cultivars.

• 한국식품저장유통학회지
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• 제10권4호
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• pp.569-573
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• 2003

자두류중 후무사를 6월 말경에 처음으로 수확하여 5일 간격으로 6차례 채취한 다음 최종 수확 10∼25일전 까지의 후무사 1-4를 미숙과로, 최종 수확 0∼5일전까지의 후무사 5, 6은 완숙과로 구분한 후 각각 메탄을 추출물을 제조하여 대표적인 식중독 세균 4종에 대한 항균력을 조사하였다. 각 균에 대한 후무사의 항균력은 시료 농도가 증가할수록 높은 저해를 보였고, 특히 5.0 mg/disc의 농도에서는 이들 4종의 균 모두에서 가장 높은 항균활성을 나타내었다. 또한 완숙과에 비해 미숙과에서 높은 항균활성을 보였으며, 후무사 1, 2의 경우 가장 강한 항균활성을 보였다. E. coli O157:H7와 S. tyhimurium에 대한 후무사의 항균력도 완숙과에 비해 미숙과에서 항균력이 높았고, 특히 5.0 mg/disc 농도에서는 E. coli에 비해 S. typhimurium에서 항균활성이 감소되었다. 그람양성균인 고 L. monocytogenes와 S. aureus에 대한 후무사의 항균력도 완숙과에 비해 미숙과에서 높은 항균활성을 보이고, 시료 농도가 증가할수록 더 큰 억제 효과를 보였다. 그리고 후무사 미숙과의 최소 저해 농도는 E coli의 경우 320 $\mu\textrm{g}$/mL, S. aureus에서 160 $\mu\textrm{g}$/mL, S. typhimurium과 L. monocytogenes은 640 $\mu\textrm{g}$/mL이었다. 이와 같이 후무사 메탄올추출물은 4종의 식중독균에 대해 우수한 항균활성을 보였고, 특히 완숙과에 비해 미숙과에서 높은 항균활성이 존재함을 확인하였다.

• 식물병연구
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• 제18권1호
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• pp.40-44
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• 2012

자두 검은점무늬병에 걸린 식물체로부터 순수분리된 X. arboricola pv. pruni 균을 NA배지에서 배양한 후 국내재배 핵과류에 분무접종한 결과 자두, 매실, 살구에 있어서는 과실에 뚜렷한 병원성을 나타내었으나 복숭아 과실은 저항성을 나타내었다. 특히 매실과 살구에서는 극심한 초기 과민성반응이 나타났는데 과실의 50% 정도가 생장 정지되어 낙과되는 현상을 보였으며 병반의 크기는 자두와는 달리 크게 진행되지 않고 많은 점무늬를 형성하는 병반형태를 나타내었고 복숭아에서는 과실병징이 나타나지 않았다. 접종된 여름철 신초가지에서 자두 포모사품종에서는 도관부까지 궤양조직이 형성되었으나 살구 그리고 매실에서는 체관부일부에서만 궤양조직이 형성되어 분리된 병원균은 자두 포모사품종에 특이적인 감염조직을 형성함을 알 수 있었다.

• Nutrition Research and Practice
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• 제6권4호
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• pp.277-285
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• 2012

The purposes of this study were to determine phenolic compounds and to evaluate antioxidant activities of plums (Soldam, Oishiwase and Formosa). Soldam contains the highest amount of total phenolics among cultivars (Formosa: 4.0%, Oishiwase: 3.3%, Soldam: 6.4% for total phenolic) as well as the total flavonoids of which constituents were mainly myricetin and anthocyanidin. The antioxidant activities were measured by DPPH, ABTS radical scavenging, and SOD-like activities. The DPPH radical scavenging activity of Korean plum extracts (200 ${\mu}g/mL$) showed more than 43%, and the Soldam turned out to be the highest : ID50 value: 160-177 ${\mu}g/mL$ for Formosa and Oishiwase; 58-64 ${\mu}g/mL$ for Soldam. The ABTS radical scavenging activity of Korean plum extracts (200 ${\mu}g/mL$) was found to be more than 50%. The SOD-like activity of Korean plum extracts (200 ${\mu}g/mL$) showed more than 70%. Among three kinds of cultivars, Soldam had the highest antioxidant activity. The nitrite scavenging activity of Soldam was 61.5%, which is the highest, compared with that of the other cultivars, about 50%. From these results, Korean plums turned out to be phytochemical rich fruit as well as to show high antioxidant activities.

• 한국식품저장유통학회지
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• 제3권2호
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• pp.155-170
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• 1996

In order to determine the physiolosical characteristics of plum fruits(Oishi wase) during maturation and guilty according to temperature after harvest, (2-chloroethyl) phosphonic acid(ethphon) 390ppm was sprayed on plum tree 11days before commercial matuarity in Suwon area. And also this study was acted to investigate fruits quility(Formosa) influenced by temperature(room, low) and polyethylene films(0.03, 0.06, 0.1mm), 1. Effect of ethphon on the fruits maturation and fruits(Oishi wase) quility according to temperature ofter harvest. Ethephon stimulated fruits ripening but the firmness was reduced rapidly. Soluble solids and titratable acidity was not very different than each treatment. Carbon dioxide and ethylene production were advanced and the production peak were shown earlier by ethephon treatment as compared with control fruit. Anthocyanin development was enhansed rapidly by ethephon treatment but it exerted a bad influence on fruits color after harvest, The soluble sugars in fluits were mainly glucose, sucrose, and fructose. Those content were higher in treated fruit than control. The organic acid was mainly malic acid. The shelf life was less than about 5days at room temperature and about 10 days at low temperature. 2. Fruits(Formosa) quility as affected by polyethylene film bagging. The polyethylene films well maintained the firmness both room and low temperature. Low temperature was more effective in maintaining titratable acidity than room temperature, especially polyethylene films. On the Other hand, soluble solids content was not shown wide differance between room and low temperature. Polyethylene film showed a high resperation rate, the rate was higher at room temperature than low temperature and thicker films revealed higher rate. Otherwise, ethylene production was low in all treatment Polyethylene film inhibited the coloration of fruits, decreased anthocyanin content. Fruits coloration delayed by low temperature in control. The shelf life of plum fruits was about 6 days at room temperature and 13 days at low temperature in control Polyethylene film had no advantage on shelf life both at room and low temperature.

• 대한본초학회지
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• 제35권6호
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• pp.35-41
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• 2020

Objectives : The object of this study was to observe anticancer and immunomodulatory effects of Formosa plum aqueous extracts (PLe) on non-small cell lung carcinoma (squamous epithelial carcinoma), NCI-H520, xenograft Balb/c nu-nu nude mice. Method : Three different dosages of PLe, 50, 100 and 200 mg/kg were orally administered once a day for 28 days from 11 days after tumor cell inoculation. Five groups, each of seven mice per group were used in the present study as follows. Tumor volume and weights, serum interferon (IFN)-γ levels, serum IL-6 were observed with tumor mass and lymphatic organ histopathology to detect anticancer and immunomodulatory effects. Result : Although no meaningful changes on the tumor weights and volumes were observed after treatment of all three different dosages of PLe, decreases of tumor cell volumes in tumor masses were dose-dependently decreased mediated by increases of apoptosis among tumor cells by treatment of PLe 100 and 200 mg/kg as compared with tumor-bearing control. In addition, decreases on the body weight and gains were also demonstrated in tumor-bearing control with increases of serum IL-6 levels. Conclusion : The results obtained in this study suggest that over 50 mg/kg of PLe showed favorable immunomodulatory and anticachexic effects with anticancer effects in 100 and 200 mg/kg of PLe treated groups on the NCI-H520 cell xenograft. However, detail mechanism studies should be conducted in future with the screening of the biological active compounds in this herb.

• 원예과학기술지
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• 제28권3호
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• pp.429-433
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• 2010

본 연구는 1-MCP가 'Formosa' 자두의 저장 중 품질 변화와 유통기간 연장에 미치는 효과를 밝히고자 수행하였다. 수확한 'Formosa' 자두를 균일한 크기와 색깔로 선별한 후 수확 당일 그리고 수확 후 1일 후에 걸쳐서 각각 1-MCP를 $1{\mu}L{\cdot}L^{-1}$ 농도로 $20^{\circ}C$에서 16시간 동안 처리하여 대조구(무처리)와 비교하였다. 1-MCP를 처리한 후 14일 동안 상온에서 자두의 연화도, 과중감소율, 가용성고형물 함량 변화, 산도, 그리고 과실의 색깔 변화를 측정하였다. 과중감소율과 과실연화도는 1-MCP 처리구가 무처리구에 비해서 적은 변화폭을 보여주었다. 1-MCP 처리 시기(수확당일 그리고 수확 후 1일) 간에는 따른 큰 차이는 없었다. 가용성고형물 함량에는 통계적 유의성은 없었으나, 1-MCP처리구의 과실에서는 산도와 과실의 색깔 변화가 무처리구에 비해서 적게 나타났다. 또한 1-MCP는 저장 중에 발생하는 과실의 부패병 억제효과를 나타내었다. 따라서 본 연구결과, 1-MCP 처리시기(${\geq}1$일) 연장은 상온저장시 과실의 경도, 산도, 과일 색깔 변화에 큰 영향을 미치지 않았으며, 또한 과실품질 유지에 실용성이 있는 결과를 보여주었다.

• 생물환경조절학회지
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• 제22권4호
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• pp.309-315
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• 2013

본 연구에서는 GA 2.5% 도포제 처리가 자두 과실의 생리적 낙과 억제 및 과실 품질에 미치는 영향을 검토 하였다. '포모사' 과실에 대한 GA 도포제 처리는 과실의 생리적 낙과를 경감시켰으며 수정 후 처리시기가 빠를수록 생리적 낙과방지 효과가 높았다. '포모사' 품종에 GA 도포제를 처리하고 착과율을 조사한 결과, 착과율은 만개 후 3일 처리에서 61%, 만개 후 13일 처리에서 15%로 무처리 5%에 비해 현저히 높았다. GA 도포제 처리구에서 착과율 증가는 '하니레드', '추희' 품종에도 유사한 경향이었다. 또한, GA 도포제 처리는 과실의 비대 및 과실 성숙에 영향을 주었다. GA 도포제 처리구에서 '포모사' 과실의 비대 양상을 조사한 결과, 만개 후 80일까지는 대조구와 유사하였으나, 만개 후 80일 이후에 대조구에 비해 과실 무게가 높게 나타났다. GA 처리된 '포모사' 과실은 과중이 약간 높고, 당도, 산 함량 및 경도는 약간 낮은 것으로 나타났다. 그리고, '포모사' 과실에서는 수확기 직전 즉 만개 후 85일경에 sucrose 함량이 증가하는데 GA 처리는 sucrose 함량 증가시기를 앞당겼다. 이를 종합하면, GA 도포제 처리는 자두에서 과실 생리적 낙과를 경감시켰으며 또한 과실의 성숙을 촉진하고 성숙기에 과실 비대를 촉진하였다.