• Title/Summary/Keyword: Prunus mume extracts

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Effect of natural antioxidant extracted from Citrus junos seib. or Prunus mume. on the quality traits of sun-dried Hanwoo beef jerky (유자 및 매실추출물 첨가가 천연건조 한우 육포의 품질특성에 미치는 영향)

  • Lim, Dong-Gyun;Kim, Jong-Ju;Seo, Kang-Seok;Nam, Ki-Chang
    • Korean Journal of Agricultural Science
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    • v.39 no.2
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    • pp.243-253
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    • 2012
  • The objective of the study was to evaluate the quality characteristics of sun-dried Hanwoo beef jerky added with the extract of Citrus junos seib. or Prunus mume. Hanwoo beef shank muscles were sliced, marinated, and sun-dried at $25^{\circ}C$, relative humidity of 35%. The physicochemical quality and microbiological safety of the Hanwoo beef jerky aerobically packaged were analyzed during the storage of $25^{\circ}C$. The moisture content of beef jerky with Citrus junos seib. was the lowest among the treatments after 20 d. Citrus junos seib. and Prunus mume jerky after 10 d had significantly lower aw than those after 0 and 20 d (p<0.05). The pH values of jerky generally ranged from 5.76 to 5.84. The pH value of Prunus mume jerky was significantly higher than those of other jerky samples (p<0.05). Prunus mume jerky showed significantly lower TBARS value than the others after 20 d (p<0.05). Citrus junos seib. jerky showed a significantly lower lightness ($L^*$), redness ($a^*$) and yellowness ($b^*$) than the others during the storage (p<0.05). Prunus mume samples after 10 d had significantly higher $L^*$, $a^*$, and $b^*$ values than the others (p<0.05). With regard to sensory properties, Citrus junos seib. and Prunus mume jerky showed significantly higher flavor and overall acceptability scores than the control (p<0.05). The extracts of Prunus mume will be used in sun-dried Hanwoo beef jerky as a natural agent to retard lipid oxidation and to improve meat color.

Studies on the Antimicrobial Activities of Prunus mume (매실의 항미생물 활성 연구)

  • 임재웅;이규봉
    • Journal of the East Asian Society of Dietary Life
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    • v.9 no.4
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    • pp.442-451
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    • 1999
  • This study was conducted to investigate the antimicrobial activity of Prunus mume extracts. Prunus mume extracts have growth inhibitory activity to various microorganisms. Gram positive bacteria such as Bacillus cereus, Bacillus subtilis, Micrococcus leteus, Staphylococcus epidrimidis were more easily inhibited than Gram negative bacteria tested Vibrio parahaemolyticus, Salmonella typhimurium, Escherichia coli, Proteus vulgaris and Yeasts by Prunus mume extracts. Among several fractions of methanol extract, EtOAc & BuOH fractions were showed strong antibacterial activities, but those fractions were not showed on fungi.

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Studies on the Antimicrobial Activities of Prunus Mume (매실의 항미생물 활성 연구)

  • 임재웅;이규봉
    • Proceedings of the Culinary Society of Korean Academy Conference
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    • 2001.08a
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    • pp.29-41
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    • 2001
  • This study was conducted to investigate the antimicrobial activity of Prunus mume extracts. Prunus mume extracts have growth inhibitory activity to various microorganisms. Gram positive bacteria such as Bacillus cereus, Bacillus subtilis, Micrococcus leteus, Staphylococcus epidrimidis were more easily inhibited than Gram negative bacteria tested Vibrio parahaemolyticus, Salmonella typhimurium, Escherichia coli, Proteus vulgaris and Yeasts by Prunus mume extracts. Among several fractions of methanol extract, EtOAc & BuOH fractions were showed strong antibacterial activities, but those fractions were not showed on fungi.

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Insecticidal Activities of Prunus mume Extract Against Rice Leaf Folder (Cnaphalocrocis medinalis Guenee) (혹명나방에 대한 매실나무 추출물의 살충활성)

  • Park, Eun-Mi;Kim, Yeon-Kook;Hwang, Jung-Taek;Moon, Jong-Min;Hwang, Tae-Hwan;Lee, Jong-Jin
    • The Korean Journal of Pesticide Science
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    • v.14 no.4
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    • pp.394-400
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    • 2010
  • Insecticidal activities of methanol extracts of the different parts of Prunus mume were investigated against the larvae of Cnaphalocrocis medinalis (C. medinalis) by topical application. The mortalities of the larvae of C. medinalis were 34% at the concentration of 4,000 ppm, 36% of 8,000 ppm, 40% of 16,000 ppm and 58% of 32,000 ppm of the extracts from the fruits, and 38% of 4,000 ppm, 45% of 8,000 ppm, 58% of 16,000 ppm and 75% of 32,000 ppm from the stem + flower of Prunus mume (P. mume), respectively. The rates of pupation of C. medinalis treated with either fruit or stem+flower were gradually low according to the concentration of extracts increased. The weight of pupae of C. medinalis has no significantly different in between the control and the treated groups of the extracts from both of fruit and stem+flower. However, the differences of the pupal weight and the rate of pupation of C. medinalis treated with the extracts from the stem+flower and fruit of P. mume were significant as the level of 56% ($R^2$=0.56363, P=0.4364). Both of stem+flower and fruit extracts of P. mume showed good effects of anti-feeding against C. medinalis. The extracts of the stem+flower of P. mume could be advocated for developing as birational agent for the control of C. medinalis.

Antioxidant and Cell Activity Using Extracts of Mume Fructus (오매 추출물들의 항산화 및 세포 활성)

  • Bae, Yu-Kyung;Choe, Tae-Boo
    • Korean Journal of Medicinal Crop Science
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    • v.19 no.5
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    • pp.388-394
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    • 2011
  • Mume fructus is the roasted fruits of Prunus mume and has been used as traditional chinese medicine. In this study, mume fructus extracts were prepared by three different methods including hot water extract (sample1), fermentation extract using Lactobacillus (Sample2-LP and sample-LA) and ethanol extract (sample3). Total polyphenol and flavonoid contents were improved by fermentation process, compared to water extract. Sample 3 showed the highest activity in DPPH radical scavenging. The cytotoxicity of the sample 2-LP was in the range of 83.3% cell viability at $300{\mu}g/m{\ell}$ concentration. Mume fructus extracts in a concentration-dependent manner inhibited melanogenesis and NO synthesis was inhibited. Specifically, the extracts fermented by L. plantarum (sample2-LP) showed higher anti-oxidant activity, anti-inflammatory and skin whitening activity than other extracts. It suggests that sample 2-LP could be potentially used as a resource of materials for functional cosmetics.

A Comparative Study on the Antimicrobial Activities of the Seeds of Prunus Species (한국산 Prunus 속 종자의 항균성과 청산배당체에 관한 연구)

  • Lee, Ihn-Rhan;Kim, Kyoung-Sook
    • Korean Journal of Pharmacognosy
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    • v.19 no.2
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    • pp.120-126
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    • 1988
  • HPLC analysis of three Prunus species, Armeniacae Semen. Persicae Semen, and Mume Semen, showed that 24. 06 mg/g, 5. 79 mg/g and 3/ 10 mg/g of amygdalin in the MeOH extract and 3. 59 mg/g, 5. 41 mg/g and 13. 48 mg/g of benzaldehyde in the MeOH extract hydrolyzed with ${\beta}-glucosidase$ were contained respectively. The MeOH extract of Mume Semen showed strong antibacterial activities against two species of bacteria (E. coli and B. subtilis) while that of Armeniacae Semen showed mild, and that of Persicae Semen showed no effect. Against A. niger, a strong antifungal activity was observed with Armeniacae Semen and only mild activities with Persicae Semen and Mume Semen. None oh the three inhibited the growth of S. cervisiae. The above results may possibly be suggestive of the correlationships between the contents of amygdalin and benzaldehyde in the test extracts with the antimicrobial potencies.

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Antibacterial activity from medicinal plant extracts on the Staphylococcus aureus (수종 한약재 추출물의 Staphylococcus aureus에 대한 항균활성)

  • Park, Chun-Geon;Bang, Kyong-Hwan;Lee, Seung-Eun;Cha, Moon-Seok;Sung, Jung-Sook;Park, Hee-Woon;Seong, Nak-Sul
    • Korean Journal of Medicinal Crop Science
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    • v.9 no.4
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    • pp.251-258
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    • 2001
  • Medicinal plant extracts including Rubus coreanus, Sanguisorba officinalis, Eriobotrya japonica, Prunus mume, Crataegus pinnatifida, Rosa leavaigate Prunus persica, Prunus japonica var. nakaii and Spiraea blumei were prepared for the test of antibacterial activity. Tryptic soy broth (TSB) containing $0{\sim}10mg/ml$ of medicinal plant extracts was inoculated with $10^6$ cells/ml of Staphylococcus aureus and incubated at $35^{\circ}C$ for 24 hours. The plate counting method and clear zone test were used to test inhibitory effect of the extracts. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) was derived from the survival curves of S. aureus. The order of antibacterial activities of medicinal plant extracts on the S. aureus was Rubus coreanus > Sanguisorba officinalis > Eriobotrya japonica > Prunus mume > Crataegus pinnatfida. Minimum inhibitory concentration of Sanguisorba ofEcmalis on the Staphylococcus aureus was 2.5mg/ml and minimum bactericidal concentration of Rubus coreanus was 1.0%. Inhibition zone of Rubus coreanus, Sanguisorba officinalis, Eriobotrya japonica, Prunus mume, and Crataegus pinnatifida was 16.5mm, 14.3mm 11.0mm, 14.0mm and 12.7mm, respectively. The morphology of S. aureus cells treated with medicinal plant extracts showed damage of cell wall and cytoplasmic membrane. Severely damaged cells of S. aureus lost electron dense material and cytoplasm. This result suggests that medicinal plant extracts can be used as an effective natural antibacterial agent in food.

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Antimicrobial Activity of Prunus mume and Schizandra chinenis H-20 Extracts and Their Effects on Quality of Functional Kochujang (매실과 오미자 추출물의 항균성과 기능성 고추장의 제조)

  • Kim, Young-Sook;Park, Young-Sun;Lim, Mu-Hyun
    • Korean Journal of Food Science and Technology
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    • v.35 no.5
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    • pp.893-897
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    • 2003
  • Prunus mume and Schizandra chinenis H-20 were found to have antibacterial properties against B. subtilis, S. aureus, E. coli KCCM 11591, and P. aeruginosa KCTC 1750. Prunus mume and S. chinenis H-20 showed clear zones of $6{\sim}10\;mm$ for the microbes used, while jujube, Lycii fructus and pine needle showed clear zones of $0.1{\sim}1\;mm$. In the experiment on DNA action, S. chinenis H-20 completely inhibited the growth of B. subtilis, S. aureus, and E. coli KCCM 11591 in the beginning of cultivation and even when added 5 hr after initiating cultivation. Moreover, as the microbes of about $l0^8$ cfu were shown by this test to have strong antibacterial power, they will most likely have an effect in vivo. Prunus mume and S. chinenis H-20 extracts were added to kochujang and fermented at $30^{\circ}C$ for 35 days. Prunus mume kochujang showed a sensory score of 4.29 (somewhat good), suggesting that Prunus mume can he utilized as a functional food ingredient.

Development of the Functional Beverage Containing the Prunus mume Extracts (매실 추출물을 함유한 기능성 음료 개발)

  • Bae, Ji-Hyun;Kim, Ki-Jin;Kim, Sung-Mi;Lee, Won-Jae;Lee, Sun-Jang
    • Korean Journal of Food Science and Technology
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    • v.32 no.3
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    • pp.713-719
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    • 2000
  • This study was performed to investigate the cytotoxic effect of the Prunus mume extracts containing beverages on the growth of SNU-16 gastric cancer cell, SNU-C2A colon cancer cell, SNU-449 liver cancer cell and HeLa cervical cancer cell. The inhibitory effect on the growth of the cancer cell lines was examined by MTT(3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assay, cytotoxicity test and microscopy. Also this study aimed to compare the changes of blood electrolytes and osmolarity during submaximal exercise for the intake of the Prunus mume extracts containing beverages. 20% Prunus mume extracts containing beverage exhibited the greatest inhibitory effect on the growth of SNU-16 and significantly inhibited at the concentration of $1000\;{\mu}g/mL$ in the MTT assay. Morphological changes in SNU-16 which treated with the same beverage were observed under inverted microscope. The change of blood electrolytes and osmolarity during submaximal exercise showed no significant differences between before and after intake of the beverage in both groups.

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Extraction Process Optimization of Poncirus trifoliata and Prunus mume for Antibacterial Activity against Vibrio parahaemolyticus (장염비브리오 항균활성을 위한 탱자와 매실의 추출조건 최적화)

  • Lee, Young-Guen;Choi, Young-Whan;Joo, Woo-Hong
    • Journal of Life Science
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    • v.16 no.4
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    • pp.640-646
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    • 2006
  • The present investigation was carried out particularly to optimize the extraction process of Poncirus trifoliata and Prunus mume to develop a functional foodstuff having antibacterial activity against Vibrio parahaemolyticus. The extracts were prepared from the fruits under various conditions, and then optimum extraction conditions were decided in case maximal antibacterial activity was obtained. In extraction process by using hot water, the best antibacterial activity of Poncirus trifoliata was achieved at $80{\sim}100^{\circ}C$ for 30 min, while that of Prunus mume was achieved at $100^{\circ}C$ for 30 min, as showing 14.8 and 16.6 mm of inhibition diameter, respectively. The extraction process with addition of NaOH increased the activity of Prunus mume, but addition of $K_2CO_3$ and $NaHCO_3$ drastically decreased the activity. In the processes at high temperature up to $120^{\circ}C$ by using pressure extractor and with various concentrations of NaOH, the maximum activity was observed in the extract of Prunus mume at $120^{\circ}C$ for 30 min with 0.05 N NaOH. The fermented ethanol extract of the fruits showed less activity than those of the extracts with water and NaOH solution.